./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-regression/test03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-regression/test03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu --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 b0461c64dd33aab490c540600717644b0e8e89b40b72a49b75f3cca81071b4ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:44:53,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:44:53,853 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:44:53,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:44:53,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:44:53,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:44:53,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:44:53,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:44:53,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:44:53,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:44:53,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:44:53,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:44:53,908 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:44:53,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:44:53,910 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:44:53,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:44:53,911 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:44:53,912 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:44:53,912 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:44:53,913 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:44:53,913 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:44:53,914 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:44:53,914 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:44:53,915 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:44:53,915 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:44:53,916 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:44:53,917 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:44:53,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:44:53,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:44:53,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:53,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:44:53,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:44:53,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:44:53,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:44:53,921 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:44:53,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:44:53,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:44:53,922 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:44:53,923 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0461c64dd33aab490c540600717644b0e8e89b40b72a49b75f3cca81071b4ad [2023-11-19 07:44:54,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:44:54,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:44:54,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:44:54,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:44:54,313 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:44:54,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-regression/test03.c [2023-11-19 07:44:57,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:44:57,614 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:44:57,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/sv-benchmarks/c/ldv-regression/test03.c [2023-11-19 07:44:57,623 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/data/fd87c52ad/bce2c8f2b1da4dffbe864e4896494a03/FLAG7b37affce [2023-11-19 07:44:57,639 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/data/fd87c52ad/bce2c8f2b1da4dffbe864e4896494a03 [2023-11-19 07:44:57,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:44:57,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:44:57,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:44:57,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:44:57,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:44:57,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:57,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db09ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57, skipping insertion in model container [2023-11-19 07:44:57,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:57,676 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:44:57,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:44:57,886 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:44:57,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:44:57,927 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:44:57,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57 WrapperNode [2023-11-19 07:44:57,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:44:57,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:44:57,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:44:57,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:44:57,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:57,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:57,973 INFO L138 Inliner]: procedures = 13, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2023-11-19 07:44:57,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:44:57,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:44:57,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:44:57,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:44:57,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:57,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:57,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:57,991 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:58,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:58,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:58,016 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:58,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:58,019 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:44:58,020 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:44:58,020 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:44:58,020 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:44:58,021 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (1/1) ... [2023-11-19 07:44:58,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:58,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:58,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:44:58,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:44:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:44:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:44:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:44:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:44:58,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:44:58,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:44:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:44:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:44:58,202 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:44:58,204 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:44:58,353 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:44:58,361 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:44:58,361 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:44:58,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:58 BoogieIcfgContainer [2023-11-19 07:44:58,365 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:44:58,368 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:44:58,368 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:44:58,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:44:58,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:44:57" (1/3) ... [2023-11-19 07:44:58,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c66d257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:58, skipping insertion in model container [2023-11-19 07:44:58,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:57" (2/3) ... [2023-11-19 07:44:58,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c66d257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:58, skipping insertion in model container [2023-11-19 07:44:58,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:58" (3/3) ... [2023-11-19 07:44:58,383 INFO L112 eAbstractionObserver]: Analyzing ICFG test03.c [2023-11-19 07:44:58,404 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:44:58,404 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 07:44:58,447 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:44:58,453 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@10912972, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:44:58,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-19 07:44:58,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:44:58,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:58,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:44:58,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-19 07:44:58,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:58,482 INFO L85 PathProgramCache]: Analyzing trace with hash 925573, now seen corresponding path program 1 times [2023-11-19 07:44:58,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:58,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531318761] [2023-11-19 07:44:58,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:58,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:58,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:58,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531318761] [2023-11-19 07:44:58,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531318761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:58,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:58,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:44:58,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699949512] [2023-11-19 07:44:58,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:58,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:44:58,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:58,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:44:58,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:44:58,970 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:59,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:59,007 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2023-11-19 07:44:59,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:44:59,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2023-11-19 07:44:59,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:59,021 INFO L225 Difference]: With dead ends: 16 [2023-11-19 07:44:59,021 INFO L226 Difference]: Without dead ends: 14 [2023-11-19 07:44:59,025 INFO L412 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 [2023-11-19 07:44:59,033 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:59,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:44:59,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-19 07:44:59,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-19 07:44:59,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:59,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2023-11-19 07:44:59,064 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 4 [2023-11-19 07:44:59,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:59,065 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2023-11-19 07:44:59,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:59,065 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2023-11-19 07:44:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:44:59,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:59,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:44:59,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:44:59,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-19 07:44:59,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:59,068 INFO L85 PathProgramCache]: Analyzing trace with hash 925574, now seen corresponding path program 1 times [2023-11-19 07:44:59,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:59,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039151697] [2023-11-19 07:44:59,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:59,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:59,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:59,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:59,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039151697] [2023-11-19 07:44:59,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039151697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:59,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:59,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:44:59,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037696590] [2023-11-19 07:44:59,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:59,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:44:59,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:59,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:44:59,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:44:59,333 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:44:59,347 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2023-11-19 07:44:59,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:44:59,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2023-11-19 07:44:59,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:44:59,348 INFO L225 Difference]: With dead ends: 12 [2023-11-19 07:44:59,349 INFO L226 Difference]: Without dead ends: 12 [2023-11-19 07:44:59,349 INFO L412 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 [2023-11-19 07:44:59,351 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:44:59,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:44:59,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-19 07:44:59,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-19 07:44:59,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:59,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2023-11-19 07:44:59,356 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 4 [2023-11-19 07:44:59,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:44:59,357 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2023-11-19 07:44:59,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:44:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-11-19 07:44:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:44:59,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:59,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:59,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:44:59,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-19 07:44:59,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:59,360 INFO L85 PathProgramCache]: Analyzing trace with hash 86934605, now seen corresponding path program 1 times [2023-11-19 07:44:59,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:59,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909054942] [2023-11-19 07:44:59,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:59,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:59,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:59,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:59,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909054942] [2023-11-19 07:44:59,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909054942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:59,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:59,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:44:59,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586670970] [2023-11-19 07:44:59,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:59,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:44:59,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:59,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:44:59,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:44:59,848 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:00,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:00,050 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2023-11-19 07:45:00,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:45:00,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:45:00,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:00,052 INFO L225 Difference]: With dead ends: 11 [2023-11-19 07:45:00,052 INFO L226 Difference]: Without dead ends: 10 [2023-11-19 07:45:00,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:45:00,059 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 16 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:00,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 12 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:45:00,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-19 07:45:00,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-19 07:45:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:00,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2023-11-19 07:45:00,069 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 8 [2023-11-19 07:45:00,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:00,070 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2023-11-19 07:45:00,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:00,072 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2023-11-19 07:45:00,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:45:00,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:00,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:00,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:45:00,075 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 3 more)] === [2023-11-19 07:45:00,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:00,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1599996630, now seen corresponding path program 1 times [2023-11-19 07:45:00,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:00,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535730726] [2023-11-19 07:45:00,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:00,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:45:00,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:00,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535730726] [2023-11-19 07:45:00,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535730726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:00,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:00,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:45:00,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212588291] [2023-11-19 07:45:00,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:00,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:45:00,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:00,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:45:00,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:45:00,335 INFO L87 Difference]: Start difference. First operand 10 states and 9 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:00,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:00,397 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2023-11-19 07:45:00,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:45:00,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 07:45:00,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:00,398 INFO L225 Difference]: With dead ends: 7 [2023-11-19 07:45:00,398 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:45:00,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:45:00,411 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:00,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:45:00,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:45:00,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:45:00,417 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) [2023-11-19 07:45:00,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:45:00,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2023-11-19 07:45:00,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:00,418 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:45:00,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:45:00,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:45:00,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:45:00,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 6 remaining) [2023-11-19 07:45:00,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 6 remaining) [2023-11-19 07:45:00,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 6 remaining) [2023-11-19 07:45:00,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 6 remaining) [2023-11-19 07:45:00,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (1 of 6 remaining) [2023-11-19 07:45:00,425 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2023-11-19 07:45:00,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:45:00,430 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 07:45:00,433 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:45:00,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:45:00 BoogieIcfgContainer [2023-11-19 07:45:00,439 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:45:00,440 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:45:00,440 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:45:00,440 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:45:00,441 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:58" (3/4) ... [2023-11-19 07:45:00,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:45:00,454 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-19 07:45:00,454 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 07:45:00,454 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:45:00,455 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:45:00,547 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:45:00,548 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:45:00,548 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:45:00,549 INFO L158 Benchmark]: Toolchain (without parser) took 2905.17ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 102.8MB in the beginning and 130.4MB in the end (delta: -27.6MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-11-19 07:45:00,549 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 148.9MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:45:00,550 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.65ms. Allocated memory is still 148.9MB. Free memory was 102.6MB in the beginning and 92.4MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:45:00,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.59ms. Allocated memory is still 148.9MB. Free memory was 92.4MB in the beginning and 91.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:45:00,550 INFO L158 Benchmark]: Boogie Preprocessor took 44.76ms. Allocated memory is still 148.9MB. Free memory was 90.8MB in the beginning and 89.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:45:00,551 INFO L158 Benchmark]: RCFGBuilder took 345.24ms. Allocated memory is still 148.9MB. Free memory was 89.8MB in the beginning and 78.9MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:45:00,551 INFO L158 Benchmark]: TraceAbstraction took 2070.90ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 78.3MB in the beginning and 134.6MB in the end (delta: -56.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:45:00,552 INFO L158 Benchmark]: Witness Printer took 108.75ms. Allocated memory is still 190.8MB. Free memory was 134.6MB in the beginning and 130.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:45:00,554 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 148.9MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.65ms. Allocated memory is still 148.9MB. Free memory was 102.6MB in the beginning and 92.4MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.59ms. Allocated memory is still 148.9MB. Free memory was 92.4MB in the beginning and 91.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.76ms. Allocated memory is still 148.9MB. Free memory was 90.8MB in the beginning and 89.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.24ms. Allocated memory is still 148.9MB. Free memory was 89.8MB in the beginning and 78.9MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2070.90ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 78.3MB in the beginning and 134.6MB in the end (delta: -56.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 108.75ms. Allocated memory is still 190.8MB. Free memory was 134.6MB in the beginning and 130.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 26 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:45:00,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b119098c-f24f-400a-9026-68ecd9594f59/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE