./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 19:07:05,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 19:07:05,879 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 19:07:05,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 19:07:05,887 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 19:07:05,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 19:07:05,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 19:07:05,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 19:07:05,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 19:07:05,914 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 19:07:05,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 19:07:05,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 19:07:05,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 19:07:05,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 19:07:05,919 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 19:07:05,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 19:07:05,919 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 19:07:05,920 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 19:07:05,920 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 19:07:05,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 19:07:05,920 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 19:07:05,924 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 19:07:05,925 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 19:07:05,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 19:07:05,925 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 19:07:05,925 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 19:07:05,925 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 19:07:05,925 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 19:07:05,926 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 19:07:05,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 19:07:05,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 19:07:05,926 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 19:07:05,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 19:07:05,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 19:07:05,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 19:07:05,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 19:07:05,927 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 19:07:05,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 19:07:05,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 19:07:05,928 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 19:07:05,928 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 19:07:05,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 19:07:05,930 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2024-11-22 19:07:06,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 19:07:06,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 19:07:06,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 19:07:06,201 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 19:07:06,202 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 19:07:06,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-11-22 19:07:07,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 19:07:07,718 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 19:07:07,719 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-11-22 19:07:07,724 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34bff8327/bbdcc7f9605f4a18a4ea7a0ff9bde028/FLAG1c4f15559 [2024-11-22 19:07:07,738 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34bff8327/bbdcc7f9605f4a18a4ea7a0ff9bde028 [2024-11-22 19:07:07,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 19:07:07,741 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 19:07:07,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 19:07:07,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 19:07:07,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 19:07:07,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297edd2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07, skipping insertion in model container [2024-11-22 19:07:07,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 19:07:07,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 19:07:07,902 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 19:07:07,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 19:07:07,925 INFO L204 MainTranslator]: Completed translation [2024-11-22 19:07:07,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07 WrapperNode [2024-11-22 19:07:07,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 19:07:07,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 19:07:07,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 19:07:07,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 19:07:07,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,937 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,948 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2024-11-22 19:07:07,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 19:07:07,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 19:07:07,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 19:07:07,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 19:07:07,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,968 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 2 writes are split as follows [0, 2]. [2024-11-22 19:07:07,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 19:07:07,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 19:07:07,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 19:07:07,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 19:07:07,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (1/1) ... [2024-11-22 19:07:07,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 19:07:07,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 19:07:08,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 19:07:08,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 19:07:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 19:07:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2024-11-22 19:07:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2024-11-22 19:07:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 19:07:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 19:07:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 19:07:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2024-11-22 19:07:08,061 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2024-11-22 19:07:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 19:07:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 19:07:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 19:07:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 19:07:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 19:07:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 19:07:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 19:07:08,136 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 19:07:08,138 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 19:07:08,289 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-22 19:07:08,291 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 19:07:08,304 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 19:07:08,305 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 19:07:08,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:07:08 BoogieIcfgContainer [2024-11-22 19:07:08,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 19:07:08,321 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 19:07:08,321 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 19:07:08,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 19:07:08,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:07:07" (1/3) ... [2024-11-22 19:07:08,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c482b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:07:08, skipping insertion in model container [2024-11-22 19:07:08,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:07:07" (2/3) ... [2024-11-22 19:07:08,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c482b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:07:08, skipping insertion in model container [2024-11-22 19:07:08,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:07:08" (3/3) ... [2024-11-22 19:07:08,327 INFO L112 eAbstractionObserver]: Analyzing ICFG simple-recursive.c [2024-11-22 19:07:08,341 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 19:07:08,342 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-22 19:07:08,404 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 19:07:08,410 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;@4d70e542, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 19:07:08,410 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-22 19:07:08,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 34 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 19:07:08,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 19:07:08,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:08,418 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 19:07:08,419 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:08,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:08,423 INFO L85 PathProgramCache]: Analyzing trace with hash 54682, now seen corresponding path program 1 times [2024-11-22 19:07:08,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:08,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476942901] [2024-11-22 19:07:08,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:08,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:08,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:08,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:08,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476942901] [2024-11-22 19:07:08,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476942901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 19:07:08,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 19:07:08,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 19:07:08,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325254226] [2024-11-22 19:07:08,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 19:07:08,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 19:07:08,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:08,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 19:07:08,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 19:07:08,637 INFO L87 Difference]: Start difference. First operand has 39 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 34 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:08,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:08,686 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2024-11-22 19:07:08,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 19:07:08,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-22 19:07:08,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:08,693 INFO L225 Difference]: With dead ends: 37 [2024-11-22 19:07:08,693 INFO L226 Difference]: Without dead ends: 35 [2024-11-22 19:07:08,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 19:07:08,697 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:08,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 56 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 19:07:08,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-22 19:07:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-22 19:07:08,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 30 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 19:07:08,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2024-11-22 19:07:08,721 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 3 [2024-11-22 19:07:08,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:08,722 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2024-11-22 19:07:08,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:08,722 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2024-11-22 19:07:08,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 19:07:08,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:08,723 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 19:07:08,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 19:07:08,723 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:08,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:08,724 INFO L85 PathProgramCache]: Analyzing trace with hash 54683, now seen corresponding path program 1 times [2024-11-22 19:07:08,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:08,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148079633] [2024-11-22 19:07:08,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:08,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:08,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:08,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148079633] [2024-11-22 19:07:08,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148079633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 19:07:08,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 19:07:08,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 19:07:08,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972542172] [2024-11-22 19:07:08,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 19:07:08,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 19:07:08,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:08,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 19:07:08,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 19:07:08,841 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:08,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:08,866 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2024-11-22 19:07:08,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 19:07:08,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-22 19:07:08,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:08,867 INFO L225 Difference]: With dead ends: 34 [2024-11-22 19:07:08,867 INFO L226 Difference]: Without dead ends: 34 [2024-11-22 19:07:08,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 19:07:08,869 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:08,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 54 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 19:07:08,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-22 19:07:08,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-22 19:07:08,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 29 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 19:07:08,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2024-11-22 19:07:08,877 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 3 [2024-11-22 19:07:08,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:08,877 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2024-11-22 19:07:08,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:08,878 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2024-11-22 19:07:08,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 19:07:08,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:08,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 19:07:08,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 19:07:08,879 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:08,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:08,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1629049723, now seen corresponding path program 1 times [2024-11-22 19:07:08,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:08,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945569649] [2024-11-22 19:07:08,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:08,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:08,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:08,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:08,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945569649] [2024-11-22 19:07:08,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945569649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 19:07:08,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 19:07:08,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 19:07:08,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425913632] [2024-11-22 19:07:08,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 19:07:08,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 19:07:08,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:08,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 19:07:08,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 19:07:08,980 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:09,063 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2024-11-22 19:07:09,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 19:07:09,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-22 19:07:09,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:09,066 INFO L225 Difference]: With dead ends: 50 [2024-11-22 19:07:09,066 INFO L226 Difference]: Without dead ends: 50 [2024-11-22 19:07:09,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 19:07:09,067 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 19 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:09,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 73 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 19:07:09,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-22 19:07:09,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2024-11-22 19:07:09,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.52) internal successors, (38), 35 states have internal predecessors, (38), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 19:07:09,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2024-11-22 19:07:09,077 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 6 [2024-11-22 19:07:09,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:09,077 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2024-11-22 19:07:09,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,077 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2024-11-22 19:07:09,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 19:07:09,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:09,078 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 19:07:09,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 19:07:09,078 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:09,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:09,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1629049724, now seen corresponding path program 1 times [2024-11-22 19:07:09,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:09,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244494260] [2024-11-22 19:07:09,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:09,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:09,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:09,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:09,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244494260] [2024-11-22 19:07:09,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244494260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 19:07:09,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 19:07:09,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 19:07:09,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600054780] [2024-11-22 19:07:09,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 19:07:09,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 19:07:09,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:09,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 19:07:09,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 19:07:09,251 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:09,302 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2024-11-22 19:07:09,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 19:07:09,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-22 19:07:09,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:09,303 INFO L225 Difference]: With dead ends: 46 [2024-11-22 19:07:09,303 INFO L226 Difference]: Without dead ends: 46 [2024-11-22 19:07:09,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 19:07:09,304 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 16 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:09,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 83 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 19:07:09,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-22 19:07:09,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2024-11-22 19:07:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.44) internal successors, (36), 35 states have internal predecessors, (36), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 19:07:09,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2024-11-22 19:07:09,308 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 6 [2024-11-22 19:07:09,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:09,308 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2024-11-22 19:07:09,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,308 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2024-11-22 19:07:09,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-22 19:07:09,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:09,309 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 19:07:09,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 19:07:09,309 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting plusErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:09,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:09,310 INFO L85 PathProgramCache]: Analyzing trace with hash -990742138, now seen corresponding path program 1 times [2024-11-22 19:07:09,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:09,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914972757] [2024-11-22 19:07:09,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:09,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:09,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:09,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:09,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914972757] [2024-11-22 19:07:09,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914972757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 19:07:09,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 19:07:09,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 19:07:09,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144111149] [2024-11-22 19:07:09,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 19:07:09,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 19:07:09,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:09,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 19:07:09,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 19:07:09,352 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:09,395 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2024-11-22 19:07:09,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 19:07:09,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-22 19:07:09,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:09,397 INFO L225 Difference]: With dead ends: 43 [2024-11-22 19:07:09,397 INFO L226 Difference]: Without dead ends: 43 [2024-11-22 19:07:09,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 19:07:09,398 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 15 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:09,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 60 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 19:07:09,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-22 19:07:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2024-11-22 19:07:09,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.36) internal successors, (34), 33 states have internal predecessors, (34), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 19:07:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2024-11-22 19:07:09,401 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 10 [2024-11-22 19:07:09,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:09,402 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2024-11-22 19:07:09,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2024-11-22 19:07:09,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-22 19:07:09,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:09,402 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 19:07:09,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 19:07:09,402 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting plusErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:09,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:09,403 INFO L85 PathProgramCache]: Analyzing trace with hash -990742137, now seen corresponding path program 1 times [2024-11-22 19:07:09,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:09,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363407071] [2024-11-22 19:07:09,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:09,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:09,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:09,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:09,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363407071] [2024-11-22 19:07:09,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363407071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 19:07:09,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 19:07:09,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 19:07:09,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453753961] [2024-11-22 19:07:09,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 19:07:09,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 19:07:09,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:09,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 19:07:09,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 19:07:09,516 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:09,603 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2024-11-22 19:07:09,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 19:07:09,604 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-22 19:07:09,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:09,605 INFO L225 Difference]: With dead ends: 39 [2024-11-22 19:07:09,605 INFO L226 Difference]: Without dead ends: 39 [2024-11-22 19:07:09,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 19:07:09,609 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 26 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:09,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 64 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 19:07:09,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-22 19:07:09,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2024-11-22 19:07:09,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.2) internal successors, (30), 29 states have internal predecessors, (30), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 19:07:09,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-22 19:07:09,616 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 10 [2024-11-22 19:07:09,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:09,616 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-22 19:07:09,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-22 19:07:09,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 19:07:09,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:09,616 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 19:07:09,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 19:07:09,617 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting fooErr4ASSERT_VIOLATIONMEMORY_LEAK === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:09,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:09,617 INFO L85 PathProgramCache]: Analyzing trace with hash -646617514, now seen corresponding path program 1 times [2024-11-22 19:07:09,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:09,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464341707] [2024-11-22 19:07:09,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:09,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:09,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:09,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:09,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464341707] [2024-11-22 19:07:09,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464341707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 19:07:09,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 19:07:09,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 19:07:09,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761491858] [2024-11-22 19:07:09,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 19:07:09,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 19:07:09,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 19:07:09,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 19:07:09,729 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:09,775 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2024-11-22 19:07:09,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 19:07:09,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-22 19:07:09,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:09,777 INFO L225 Difference]: With dead ends: 33 [2024-11-22 19:07:09,777 INFO L226 Difference]: Without dead ends: 33 [2024-11-22 19:07:09,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 19:07:09,777 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:09,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 100 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 19:07:09,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-22 19:07:09,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-22 19:07:09,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 26 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 19:07:09,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2024-11-22 19:07:09,781 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2024-11-22 19:07:09,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:09,782 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2024-11-22 19:07:09,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,782 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2024-11-22 19:07:09,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-22 19:07:09,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:09,782 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 19:07:09,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 19:07:09,782 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:09,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:09,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1567376975, now seen corresponding path program 1 times [2024-11-22 19:07:09,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:09,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870631498] [2024-11-22 19:07:09,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:09,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:09,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:09,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870631498] [2024-11-22 19:07:09,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870631498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 19:07:09,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 19:07:09,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 19:07:09,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830064894] [2024-11-22 19:07:09,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 19:07:09,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 19:07:09,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:09,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 19:07:09,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 19:07:09,899 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:09,958 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2024-11-22 19:07:09,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 19:07:09,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-22 19:07:09,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:09,959 INFO L225 Difference]: With dead ends: 34 [2024-11-22 19:07:09,959 INFO L226 Difference]: Without dead ends: 34 [2024-11-22 19:07:09,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 19:07:09,960 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 19 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:09,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 63 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 19:07:09,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-22 19:07:09,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-11-22 19:07:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 25 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-22 19:07:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2024-11-22 19:07:09,964 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 16 [2024-11-22 19:07:09,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:09,964 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2024-11-22 19:07:09,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2024-11-22 19:07:09,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-22 19:07:09,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:09,965 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 19:07:09,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 19:07:09,965 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting fooErr4ASSERT_VIOLATIONMEMORY_LEAK === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:09,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:09,965 INFO L85 PathProgramCache]: Analyzing trace with hash 518854658, now seen corresponding path program 1 times [2024-11-22 19:07:09,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:09,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509510878] [2024-11-22 19:07:09,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:09,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:10,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:10,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509510878] [2024-11-22 19:07:10,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509510878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 19:07:10,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512830054] [2024-11-22 19:07:10,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:10,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 19:07:10,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 19:07:10,232 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 19:07:10,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 19:07:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:10,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-22 19:07:10,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 19:07:10,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 19:07:10,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-22 19:07:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:10,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 19:07:10,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:10,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512830054] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 19:07:10,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 19:07:10,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 29 [2024-11-22 19:07:10,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789010784] [2024-11-22 19:07:10,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 19:07:10,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-22 19:07:10,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:10,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-22 19:07:10,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=717, Unknown=0, NotChecked=0, Total=812 [2024-11-22 19:07:10,719 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 29 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 23 states have internal predecessors, (37), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:11,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:11,090 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2024-11-22 19:07:11,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 19:07:11,090 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 23 states have internal predecessors, (37), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-22 19:07:11,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:11,091 INFO L225 Difference]: With dead ends: 58 [2024-11-22 19:07:11,091 INFO L226 Difference]: Without dead ends: 58 [2024-11-22 19:07:11,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=236, Invalid=1656, Unknown=0, NotChecked=0, Total=1892 [2024-11-22 19:07:11,093 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 29 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:11,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 248 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 19:07:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-22 19:07:11,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2024-11-22 19:07:11,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 43 states have (on average 1.069767441860465) internal successors, (46), 45 states have internal predecessors, (46), 7 states have call successors, (7), 7 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2024-11-22 19:07:11,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2024-11-22 19:07:11,102 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 21 [2024-11-22 19:07:11,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:11,102 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2024-11-22 19:07:11,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 23 states have internal predecessors, (37), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:11,102 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2024-11-22 19:07:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-22 19:07:11,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:11,103 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 19:07:11,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 19:07:11,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 19:07:11,308 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting fooErr4ASSERT_VIOLATIONMEMORY_LEAK === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:11,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:11,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2124560806, now seen corresponding path program 2 times [2024-11-22 19:07:11,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:11,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388172079] [2024-11-22 19:07:11,309 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 19:07:11,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:11,326 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 19:07:11,326 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 19:07:11,998 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:11,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:11,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388172079] [2024-11-22 19:07:11,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388172079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 19:07:11,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17944505] [2024-11-22 19:07:11,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 19:07:11,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 19:07:11,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 19:07:12,001 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 19:07:12,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 19:07:12,060 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 19:07:12,060 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 19:07:12,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-11-22 19:07:12,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 19:07:12,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 19:07:12,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-22 19:07:12,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-22 19:07:12,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-22 19:07:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:12,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 19:07:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 19:07:13,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17944505] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 19:07:13,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 19:07:13,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26, 27] total 74 [2024-11-22 19:07:13,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509313333] [2024-11-22 19:07:13,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 19:07:13,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2024-11-22 19:07:13,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:13,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2024-11-22 19:07:13,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=497, Invalid=4905, Unknown=0, NotChecked=0, Total=5402 [2024-11-22 19:07:13,695 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand has 74 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 53 states have internal predecessors, (93), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:14,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:14,715 INFO L93 Difference]: Finished difference Result 98 states and 112 transitions. [2024-11-22 19:07:14,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-22 19:07:14,716 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 53 states have internal predecessors, (93), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-22 19:07:14,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:14,717 INFO L225 Difference]: With dead ends: 98 [2024-11-22 19:07:14,717 INFO L226 Difference]: Without dead ends: 98 [2024-11-22 19:07:14,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4255 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1193, Invalid=10797, Unknown=0, NotChecked=0, Total=11990 [2024-11-22 19:07:14,721 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 126 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:14,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 441 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 19:07:14,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-22 19:07:14,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2024-11-22 19:07:14,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.04) internal successors, (78), 77 states have internal predecessors, (78), 15 states have call successors, (15), 15 states have call predecessors, (15), 5 states have return successors, (17), 5 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-22 19:07:14,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2024-11-22 19:07:14,727 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 41 [2024-11-22 19:07:14,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:14,727 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2024-11-22 19:07:14,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 71 states have (on average 1.3098591549295775) internal successors, (93), 53 states have internal predecessors, (93), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:14,728 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2024-11-22 19:07:14,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-22 19:07:14,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:14,729 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 19:07:14,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 19:07:14,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 19:07:14,934 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fooErr4ASSERT_VIOLATIONMEMORY_LEAK === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:14,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:14,935 INFO L85 PathProgramCache]: Analyzing trace with hash -33992950, now seen corresponding path program 3 times [2024-11-22 19:07:14,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:14,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063166582] [2024-11-22 19:07:14,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 19:07:14,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:14,947 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 19:07:14,947 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 19:07:15,119 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 68 proven. 1 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-22 19:07:15,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:15,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063166582] [2024-11-22 19:07:15,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063166582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 19:07:15,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245521108] [2024-11-22 19:07:15,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 19:07:15,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 19:07:15,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 19:07:15,122 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 19:07:15,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 19:07:15,172 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 19:07:15,172 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 19:07:15,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-22 19:07:15,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 19:07:15,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-22 19:07:15,263 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 68 proven. 1 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-22 19:07:15,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 19:07:15,356 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 68 proven. 1 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-22 19:07:15,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245521108] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 19:07:15,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 19:07:15,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 20 [2024-11-22 19:07:15,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299854648] [2024-11-22 19:07:15,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 19:07:15,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-22 19:07:15,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:15,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-22 19:07:15,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-22 19:07:15,362 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand has 20 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:15,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:15,546 INFO L93 Difference]: Finished difference Result 98 states and 111 transitions. [2024-11-22 19:07:15,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 19:07:15,547 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-22 19:07:15,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:15,548 INFO L225 Difference]: With dead ends: 98 [2024-11-22 19:07:15,548 INFO L226 Difference]: Without dead ends: 98 [2024-11-22 19:07:15,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 148 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2024-11-22 19:07:15,549 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:15,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 137 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 19:07:15,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-22 19:07:15,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 82. [2024-11-22 19:07:15,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.0158730158730158) internal successors, (64), 63 states have internal predecessors, (64), 13 states have call successors, (13), 13 states have call predecessors, (13), 5 states have return successors, (15), 5 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-22 19:07:15,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2024-11-22 19:07:15,554 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 81 [2024-11-22 19:07:15,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:15,555 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2024-11-22 19:07:15,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:15,555 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2024-11-22 19:07:15,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-22 19:07:15,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 19:07:15,556 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 19:07:15,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 19:07:15,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 19:07:15,761 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2024-11-22 19:07:15,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 19:07:15,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1792731059, now seen corresponding path program 1 times [2024-11-22 19:07:15,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 19:07:15,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883853213] [2024-11-22 19:07:15,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:15,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 19:07:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:17,042 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 21 proven. 72 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-11-22 19:07:17,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 19:07:17,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883853213] [2024-11-22 19:07:17,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883853213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 19:07:17,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312984367] [2024-11-22 19:07:17,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 19:07:17,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 19:07:17,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 19:07:17,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 19:07:17,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 19:07:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 19:07:17,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 19:07:17,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 19:07:17,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2024-11-22 19:07:17,173 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#x~0#1.base_6| Int)) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#x~0#1.base_6| 0)) (= (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#x~0#1.base_6|) 0))) is different from true [2024-11-22 19:07:17,174 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-22 19:07:17,174 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 19:07:17,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312984367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 19:07:17,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 19:07:17,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [26] total 28 [2024-11-22 19:07:17,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495079159] [2024-11-22 19:07:17,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 19:07:17,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 19:07:17,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 19:07:17,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 19:07:17,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=591, Unknown=1, NotChecked=50, Total=756 [2024-11-22 19:07:17,176 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 19:07:17,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 19:07:17,204 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2024-11-22 19:07:17,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 19:07:17,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 97 [2024-11-22 19:07:17,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 19:07:17,205 INFO L225 Difference]: With dead ends: 81 [2024-11-22 19:07:17,205 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 19:07:17,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=591, Unknown=1, NotChecked=50, Total=756 [2024-11-22 19:07:17,206 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 19:07:17,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 22 Unchecked, 0.0s Time] [2024-11-22 19:07:17,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 19:07:17,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 19:07:17,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 19:07:17,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 19:07:17,207 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2024-11-22 19:07:17,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 19:07:17,207 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 19:07:17,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 19:07:17,207 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 19:07:17,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 19:07:17,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fooErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 12 remaining) [2024-11-22 19:07:17,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fooErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2024-11-22 19:07:17,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fooErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2024-11-22 19:07:17,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fooErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 12 remaining) [2024-11-22 19:07:17,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fooErr4ASSERT_VIOLATIONMEMORY_LEAK (7 of 12 remaining) [2024-11-22 19:07:17,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2024-11-22 19:07:17,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 12 remaining) [2024-11-22 19:07:17,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 12 remaining) [2024-11-22 19:07:17,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location plusErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 12 remaining) [2024-11-22 19:07:17,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location plusErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 12 remaining) [2024-11-22 19:07:17,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location plusErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 12 remaining) [2024-11-22 19:07:17,213 INFO L782 garLoopResultBuilder]: Registering result SAFE for location plusErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 12 remaining) [2024-11-22 19:07:17,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 19:07:17,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 19:07:17,419 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 19:07:17,421 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 19:07:17,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 07:07:17 BoogieIcfgContainer [2024-11-22 19:07:17,425 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 19:07:17,425 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 19:07:17,425 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 19:07:17,426 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 19:07:17,426 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:07:08" (3/4) ... [2024-11-22 19:07:17,427 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 19:07:17,430 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure foo [2024-11-22 19:07:17,431 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure plus [2024-11-22 19:07:17,433 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-22 19:07:17,433 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-22 19:07:17,434 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 19:07:17,434 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 19:07:17,434 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 19:07:17,506 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 19:07:17,506 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 19:07:17,506 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 19:07:17,507 INFO L158 Benchmark]: Toolchain (without parser) took 9765.60ms. Allocated memory was 159.4MB in the beginning and 350.2MB in the end (delta: 190.8MB). Free memory was 88.0MB in the beginning and 316.3MB in the end (delta: -228.3MB). Peak memory consumption was 172.1MB. Max. memory is 16.1GB. [2024-11-22 19:07:17,507 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 19:07:17,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.65ms. Allocated memory is still 159.4MB. Free memory was 87.8MB in the beginning and 75.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 19:07:17,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.27ms. Allocated memory is still 159.4MB. Free memory was 75.9MB in the beginning and 74.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 19:07:17,507 INFO L158 Benchmark]: Boogie Preprocessor took 25.54ms. Allocated memory is still 159.4MB. Free memory was 74.4MB in the beginning and 72.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 19:07:17,507 INFO L158 Benchmark]: RCFGBuilder took 330.68ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 72.5MB in the beginning and 201.4MB in the end (delta: -128.9MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-11-22 19:07:17,508 INFO L158 Benchmark]: TraceAbstraction took 9104.23ms. Allocated memory was 237.0MB in the beginning and 350.2MB in the end (delta: 113.2MB). Free memory was 204.1MB in the beginning and 114.6MB in the end (delta: 89.5MB). Peak memory consumption was 203.9MB. Max. memory is 16.1GB. [2024-11-22 19:07:17,508 INFO L158 Benchmark]: Witness Printer took 80.97ms. Allocated memory is still 350.2MB. Free memory was 114.6MB in the beginning and 316.3MB in the end (delta: -201.7MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-22 19:07:17,509 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 127.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.65ms. Allocated memory is still 159.4MB. Free memory was 87.8MB in the beginning and 75.9MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.27ms. Allocated memory is still 159.4MB. Free memory was 75.9MB in the beginning and 74.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.54ms. Allocated memory is still 159.4MB. Free memory was 74.4MB in the beginning and 72.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.68ms. Allocated memory was 159.4MB in the beginning and 237.0MB in the end (delta: 77.6MB). Free memory was 72.5MB in the beginning and 201.4MB in the end (delta: -128.9MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9104.23ms. Allocated memory was 237.0MB in the beginning and 350.2MB in the end (delta: 113.2MB). Free memory was 204.1MB in the beginning and 114.6MB in the end (delta: 89.5MB). Peak memory consumption was 203.9MB. Max. memory is 16.1GB. * Witness Printer took 80.97ms. Allocated memory is still 350.2MB. Free memory was 114.6MB in the beginning and 316.3MB in the end (delta: -201.7MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 22]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 39 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 12, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 270 mSDsluCounter, 1413 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 22 IncrementalHoareTripleChecker+Unchecked, 1113 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1446 IncrementalHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 300 mSDtfsCounter, 1446 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 595 GetRequests, 352 SyntacticMatches, 8 SemanticMatches, 235 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4905 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=10, InterpolantAutomatonStates: 140, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 42 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 545 NumberOfCodeBlocks, 425 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 669 ConstructedInterpolants, 1 QuantifiedInterpolants, 3127 SizeOfPredicates, 40 NumberOfNonLiveVariables, 841 ConjunctsInSsa, 184 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 1100/1301 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 19:07:17,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE