./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme --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 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:13,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:14,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-26 12:04:14,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:14,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:14,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:14,092 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:14,093 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:14,094 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:14,099 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:14,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:14,101 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:14,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:14,103 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:14,104 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:14,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:14,105 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:04:14,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:14,106 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:04:14,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:14,106 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 12:04:14,107 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 12:04:14,107 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 12:04:14,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:14,108 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:04:14,108 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:14,109 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:04:14,109 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:14,110 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:14,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:14,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:04:14,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:14,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:14,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:14,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:14,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:04:14,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:04:14,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:14,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:14,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:14,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:14,114 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_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2023-11-26 12:04:14,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:14,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:14,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:14,439 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:14,441 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:14,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/locks/test_locks_15-1.c [2023-11-26 12:04:17,757 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:17,963 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:17,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/sv-benchmarks/c/locks/test_locks_15-1.c [2023-11-26 12:04:17,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/data/69f7a0ce5/8663a8f3da8f4d08b0367df0a21f5fc8/FLAGbff230ae3 [2023-11-26 12:04:17,994 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/data/69f7a0ce5/8663a8f3da8f4d08b0367df0a21f5fc8 [2023-11-26 12:04:17,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:18,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:18,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:18,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:18,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:18,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:17" (1/1) ... [2023-11-26 12:04:18,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ba2817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18, skipping insertion in model container [2023-11-26 12:04:18,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:17" (1/1) ... [2023-11-26 12:04:18,057 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:18,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:18,298 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:18,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:18,346 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:18,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18 WrapperNode [2023-11-26 12:04:18,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:18,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:18,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:18,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:18,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,396 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 211 [2023-11-26 12:04:18,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:18,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:18,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:18,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:18,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,416 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,429 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:04:18,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:18,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:18,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:18,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:18,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (1/1) ... [2023-11-26 12:04:18,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:18,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:18,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:18,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:04:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:04:18,615 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:18,618 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:04:18,931 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:04:18,970 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:04:18,970 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:04:18,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:18 BoogieIcfgContainer [2023-11-26 12:04:18,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:04:18,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:04:18,974 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:04:18,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:04:18,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:04:17" (1/3) ... [2023-11-26 12:04:18,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ced464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:18, skipping insertion in model container [2023-11-26 12:04:18,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:18" (2/3) ... [2023-11-26 12:04:18,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ced464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:18, skipping insertion in model container [2023-11-26 12:04:18,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:18" (3/3) ... [2023-11-26 12:04:18,982 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2023-11-26 12:04:19,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:04:19,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:04:19,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:04:19,074 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;@5d487d94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:04:19,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 12:04:19,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 52 states have (on average 1.9615384615384615) internal successors, (102), 54 states have internal predecessors, (102), 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) [2023-11-26 12:04:19,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 12:04:19,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:19,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 12:04:19,087 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:19,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:19,093 INFO L85 PathProgramCache]: Analyzing trace with hash 9774490, now seen corresponding path program 1 times [2023-11-26 12:04:19,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:19,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912087451] [2023-11-26 12:04:19,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:19,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:19,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:19,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:19,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912087451] [2023-11-26 12:04:19,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912087451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:19,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:19,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:19,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690725943] [2023-11-26 12:04:19,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:19,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:04:19,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:19,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:04:19,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:04:19,332 INFO L87 Difference]: Start difference. First operand has 55 states, 52 states have (on average 1.9615384615384615) internal successors, (102), 54 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2023-11-26 12:04:19,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:19,369 INFO L93 Difference]: Finished difference Result 55 states and 99 transitions. [2023-11-26 12:04:19,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:04:19,372 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2023-11-26 12:04:19,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:19,382 INFO L225 Difference]: With dead ends: 55 [2023-11-26 12:04:19,382 INFO L226 Difference]: Without dead ends: 54 [2023-11-26 12:04:19,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:04:19,391 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:19,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:19,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-26 12:04:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-26 12:04:19,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.8846153846153846) internal successors, (98), 53 states have internal predecessors, (98), 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) [2023-11-26 12:04:19,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2023-11-26 12:04:19,444 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 4 [2023-11-26 12:04:19,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:19,444 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2023-11-26 12:04:19,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2023-11-26 12:04:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2023-11-26 12:04:19,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 12:04:19,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:19,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 12:04:19,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:04:19,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:19,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:19,449 INFO L85 PathProgramCache]: Analyzing trace with hash 294953162, now seen corresponding path program 1 times [2023-11-26 12:04:19,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:19,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100417563] [2023-11-26 12:04:19,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:19,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:19,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:19,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:19,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100417563] [2023-11-26 12:04:19,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100417563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:19,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:19,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:04:19,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237340790] [2023-11-26 12:04:19,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:19,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:19,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:19,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:19,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:19,603 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-26 12:04:19,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:19,617 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2023-11-26 12:04:19,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:19,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-26 12:04:19,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:19,620 INFO L225 Difference]: With dead ends: 53 [2023-11-26 12:04:19,620 INFO L226 Difference]: Without dead ends: 51 [2023-11-26 12:04:19,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:19,622 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 93 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:19,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 96 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:19,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-26 12:04:19,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-26 12:04:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 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) [2023-11-26 12:04:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2023-11-26 12:04:19,632 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 5 [2023-11-26 12:04:19,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:19,632 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2023-11-26 12:04:19,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-26 12:04:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2023-11-26 12:04:19,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:19,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:19,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:19,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:04:19,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:19,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:19,635 INFO L85 PathProgramCache]: Analyzing trace with hash 57812329, now seen corresponding path program 1 times [2023-11-26 12:04:19,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:19,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876662015] [2023-11-26 12:04:19,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:19,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:19,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:19,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:19,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876662015] [2023-11-26 12:04:19,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876662015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:19,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:19,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:19,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94139855] [2023-11-26 12:04:19,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:19,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:19,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:19,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:19,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:19,724 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:19,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:19,756 INFO L93 Difference]: Finished difference Result 100 states and 185 transitions. [2023-11-26 12:04:19,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:19,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-26 12:04:19,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:19,758 INFO L225 Difference]: With dead ends: 100 [2023-11-26 12:04:19,759 INFO L226 Difference]: Without dead ends: 100 [2023-11-26 12:04:19,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:19,761 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 77 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:19,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 239 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:19,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-26 12:04:19,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2023-11-26 12:04:19,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.90625) internal successors, (183), 96 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2023-11-26 12:04:19,777 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2023-11-26 12:04:19,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:19,778 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2023-11-26 12:04:19,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:19,778 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2023-11-26 12:04:19,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:19,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:19,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:19,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:04:19,780 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:19,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:19,781 INFO L85 PathProgramCache]: Analyzing trace with hash 57589377, now seen corresponding path program 1 times [2023-11-26 12:04:19,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:19,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873155541] [2023-11-26 12:04:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:19,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:19,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:19,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:19,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873155541] [2023-11-26 12:04:19,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873155541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:19,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:19,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:19,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82649535] [2023-11-26 12:04:19,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:19,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:19,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:19,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:19,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:19,859 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:19,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:19,879 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2023-11-26 12:04:19,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:19,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-26 12:04:19,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:19,882 INFO L225 Difference]: With dead ends: 98 [2023-11-26 12:04:19,882 INFO L226 Difference]: Without dead ends: 98 [2023-11-26 12:04:19,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:19,884 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 14 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:19,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 183 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:19,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-26 12:04:19,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-26 12:04:19,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.8969072164948453) internal successors, (184), 97 states have internal predecessors, (184), 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) [2023-11-26 12:04:19,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2023-11-26 12:04:19,898 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2023-11-26 12:04:19,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:19,899 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2023-11-26 12:04:19,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:19,900 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2023-11-26 12:04:19,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:19,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:19,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:19,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:04:19,901 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:19,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:19,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1631131413, now seen corresponding path program 1 times [2023-11-26 12:04:19,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:19,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265129242] [2023-11-26 12:04:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:19,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:19,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:19,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:19,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265129242] [2023-11-26 12:04:19,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265129242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:19,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:19,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:19,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25504071] [2023-11-26 12:04:19,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:19,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:19,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:19,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:19,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:19,967 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:19,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:19,994 INFO L93 Difference]: Finished difference Result 138 states and 252 transitions. [2023-11-26 12:04:19,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:19,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-26 12:04:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:19,996 INFO L225 Difference]: With dead ends: 138 [2023-11-26 12:04:19,996 INFO L226 Difference]: Without dead ends: 138 [2023-11-26 12:04:19,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:19,998 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 77 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:19,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 133 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:20,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-26 12:04:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2023-11-26 12:04:20,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.8656716417910448) internal successors, (250), 134 states have internal predecessors, (250), 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) [2023-11-26 12:04:20,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2023-11-26 12:04:20,014 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2023-11-26 12:04:20,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:20,014 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2023-11-26 12:04:20,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:20,015 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2023-11-26 12:04:20,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:20,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:20,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:20,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:04:20,017 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:20,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:20,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1631354365, now seen corresponding path program 1 times [2023-11-26 12:04:20,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:20,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854454257] [2023-11-26 12:04:20,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:20,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:20,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:20,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854454257] [2023-11-26 12:04:20,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854454257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:20,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:20,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:20,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452668065] [2023-11-26 12:04:20,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:20,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:20,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:20,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:20,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:20,102 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:20,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:20,122 INFO L93 Difference]: Finished difference Result 136 states and 245 transitions. [2023-11-26 12:04:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:20,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-26 12:04:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:20,125 INFO L225 Difference]: With dead ends: 136 [2023-11-26 12:04:20,125 INFO L226 Difference]: Without dead ends: 136 [2023-11-26 12:04:20,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:20,127 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 75 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:20,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 211 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-26 12:04:20,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2023-11-26 12:04:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.8409090909090908) internal successors, (243), 132 states have internal predecessors, (243), 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) [2023-11-26 12:04:20,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2023-11-26 12:04:20,140 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2023-11-26 12:04:20,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:20,141 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2023-11-26 12:04:20,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:20,141 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2023-11-26 12:04:20,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:20,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:20,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:20,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:04:20,143 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:20,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:20,144 INFO L85 PathProgramCache]: Analyzing trace with hash 669691177, now seen corresponding path program 1 times [2023-11-26 12:04:20,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:20,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226870600] [2023-11-26 12:04:20,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:20,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:20,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:20,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:20,240 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:04:20,242 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-11-26 12:04:20,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-11-26 12:04:20,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:04:20,248 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:20,253 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:04:20,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:20 BoogieIcfgContainer [2023-11-26 12:04:20,307 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:04:20,307 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:04:20,307 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:04:20,308 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:04:20,308 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:18" (3/4) ... [2023-11-26 12:04:20,311 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:04:20,312 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:04:20,313 INFO L158 Benchmark]: Toolchain (without parser) took 2311.75ms. Allocated memory is still 155.2MB. Free memory was 113.0MB in the beginning and 108.9MB in the end (delta: 4.1MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-26 12:04:20,313 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:20,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.09ms. Allocated memory is still 155.2MB. Free memory was 113.0MB in the beginning and 101.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:04:20,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.23ms. Allocated memory is still 155.2MB. Free memory was 101.1MB in the beginning and 99.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:20,315 INFO L158 Benchmark]: Boogie Preprocessor took 48.07ms. Allocated memory is still 155.2MB. Free memory was 99.1MB in the beginning and 96.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:20,316 INFO L158 Benchmark]: RCFGBuilder took 520.63ms. Allocated memory is still 155.2MB. Free memory was 96.7MB in the beginning and 78.8MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 12:04:20,317 INFO L158 Benchmark]: TraceAbstraction took 1332.69ms. Allocated memory is still 155.2MB. Free memory was 78.2MB in the beginning and 109.8MB in the end (delta: -31.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:20,317 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 155.2MB. Free memory was 109.8MB in the beginning and 108.9MB in the end (delta: 895.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:20,321 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.09ms. Allocated memory is still 155.2MB. Free memory was 113.0MB in the beginning and 101.1MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.23ms. Allocated memory is still 155.2MB. Free memory was 101.1MB in the beginning and 99.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.07ms. Allocated memory is still 155.2MB. Free memory was 99.1MB in the beginning and 96.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.63ms. Allocated memory is still 155.2MB. Free memory was 96.7MB in the beginning and 78.8MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1332.69ms. Allocated memory is still 155.2MB. Free memory was 78.2MB in the beginning and 109.8MB in the end (delta: -31.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 155.2MB. Free memory was 109.8MB in the beginning and 108.9MB in the end (delta: 895.6kB). Peak memory consumption was 2.1MB. 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 - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; VAL [p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L93] COND FALSE !(p1 != 0) VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L97] COND FALSE !(p2 != 0) VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L101] COND FALSE !(p3 != 0) VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L105] COND TRUE p4 != 0 [L106] lk4 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L109] COND TRUE p5 != 0 [L110] lk5 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L113] COND TRUE p6 != 0 [L114] lk6 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L117] COND TRUE p7 != 0 [L118] lk7 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L121] COND TRUE p8 != 0 [L122] lk8 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L125] COND TRUE p9 != 0 [L126] lk9 = 1 VAL [cond=1, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L129] COND TRUE p10 != 0 [L130] lk10 = 1 VAL [cond=1, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L133] COND FALSE !(p11 != 0) VAL [cond=1, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L137] COND TRUE p12 != 0 [L138] lk12 = 1 VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L141] COND TRUE p13 != 0 [L142] lk13 = 1 VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L145] COND TRUE p14 != 0 [L146] lk14 = 1 VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L155] COND FALSE !(p1 != 0) VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L160] COND FALSE !(p2 != 0) VAL [cond=1, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=1, p11=0, p12=1, p13=1, p14=1, p15=1, p1=0, p2=0, p3=0, p4=1, p5=1, p6=1, p7=1, p8=1, p9=1] [L233] CALL reach_error() [L3] __assert_fail("0", "test_locks_15-1.c", 3, "reach_error") - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 336 mSDsluCounter, 959 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 656 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=5, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 251 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 12:04:20,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_15-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme --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 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:23,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:23,235 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-26 12:04:23,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:23,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:23,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:23,318 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:23,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:23,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:23,326 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:23,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:23,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:23,328 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:23,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:23,330 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:23,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:23,332 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:04:23,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:23,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:04:23,334 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:23,335 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 12:04:23,335 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 12:04:23,336 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 12:04:23,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:23,337 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:04:23,337 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:04:23,338 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:04:23,338 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:23,339 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:04:23,339 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:23,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:23,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:23,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:04:23,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:23,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:23,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:23,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:23,345 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:04:23,345 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:04:23,345 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:23,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:23,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:23,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:23,347 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:04:23,348 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_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a9c91fdf6b42598924d9a4ae5a3db9994a05118a3b564c2bd29b9bad4177b0 [2023-11-26 12:04:23,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:23,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:23,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:23,809 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:23,810 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:23,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/locks/test_locks_15-1.c [2023-11-26 12:04:27,067 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:27,376 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:27,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/sv-benchmarks/c/locks/test_locks_15-1.c [2023-11-26 12:04:27,387 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/data/ca9bf60e9/b01ba12e45514c90ae9c6790813e4498/FLAG80ead9bd5 [2023-11-26 12:04:27,403 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/data/ca9bf60e9/b01ba12e45514c90ae9c6790813e4498 [2023-11-26 12:04:27,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:27,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:27,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:27,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:27,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:27,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50519e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27, skipping insertion in model container [2023-11-26 12:04:27,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:27,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:27,749 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:27,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:27,831 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:27,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27 WrapperNode [2023-11-26 12:04:27,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:27,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:27,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:27,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:27,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,903 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 195 [2023-11-26 12:04:27,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:27,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:27,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:27,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:27,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,952 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:04:27,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:27,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:28,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:28,011 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:28,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:28,030 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:28,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:28,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:28,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:28,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (1/1) ... [2023-11-26 12:04:28,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:28,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:28,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:28,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:04:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:28,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:04:28,295 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:28,298 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:04:28,684 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:04:28,709 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:04:28,710 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:04:28,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:28 BoogieIcfgContainer [2023-11-26 12:04:28,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:04:28,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:04:28,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:04:28,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:04:28,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:04:27" (1/3) ... [2023-11-26 12:04:28,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db6b328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:28, skipping insertion in model container [2023-11-26 12:04:28,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:27" (2/3) ... [2023-11-26 12:04:28,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db6b328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:28, skipping insertion in model container [2023-11-26 12:04:28,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:28" (3/3) ... [2023-11-26 12:04:28,720 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2023-11-26 12:04:28,741 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:04:28,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:04:28,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:04:28,798 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;@174cde33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:04:28,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 12:04:28,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 52 states have (on average 1.9615384615384615) internal successors, (102), 54 states have internal predecessors, (102), 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) [2023-11-26 12:04:28,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 12:04:28,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:28,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 12:04:28,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:28,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:28,817 INFO L85 PathProgramCache]: Analyzing trace with hash 9774490, now seen corresponding path program 1 times [2023-11-26 12:04:28,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:04:28,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434790658] [2023-11-26 12:04:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:28,841 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:28,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:04:28,843 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:04:28,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 12:04:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:28,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 12:04:28,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:28,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:04:28,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:04:28,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434790658] [2023-11-26 12:04:28,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [434790658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:28,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:28,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:28,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44231207] [2023-11-26 12:04:28,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:28,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:04:28,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:04:29,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:04:29,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:04:29,037 INFO L87 Difference]: Start difference. First operand has 55 states, 52 states have (on average 1.9615384615384615) internal successors, (102), 54 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2023-11-26 12:04:29,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:29,084 INFO L93 Difference]: Finished difference Result 55 states and 99 transitions. [2023-11-26 12:04:29,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:04:29,088 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2023-11-26 12:04:29,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:29,100 INFO L225 Difference]: With dead ends: 55 [2023-11-26 12:04:29,100 INFO L226 Difference]: Without dead ends: 54 [2023-11-26 12:04:29,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:04:29,107 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:29,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:29,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-26 12:04:29,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-26 12:04:29,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.8846153846153846) internal successors, (98), 53 states have internal predecessors, (98), 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) [2023-11-26 12:04:29,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 98 transitions. [2023-11-26 12:04:29,159 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 98 transitions. Word has length 4 [2023-11-26 12:04:29,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:29,159 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 98 transitions. [2023-11-26 12:04:29,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2023-11-26 12:04:29,161 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 98 transitions. [2023-11-26 12:04:29,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-26 12:04:29,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:29,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-26 12:04:29,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:04:29,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:29,371 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:29,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:29,374 INFO L85 PathProgramCache]: Analyzing trace with hash 294953162, now seen corresponding path program 1 times [2023-11-26 12:04:29,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:04:29,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075206814] [2023-11-26 12:04:29,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:29,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:29,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:04:29,378 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:04:29,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 12:04:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:29,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:04:29,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:29,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:04:29,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:04:29,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075206814] [2023-11-26 12:04:29,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075206814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:29,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:29,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:04:29,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363928102] [2023-11-26 12:04:29,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:29,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:29,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:04:29,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:29,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:29,463 INFO L87 Difference]: Start difference. First operand 54 states and 98 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-26 12:04:29,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:29,478 INFO L93 Difference]: Finished difference Result 53 states and 97 transitions. [2023-11-26 12:04:29,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:29,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-26 12:04:29,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:29,481 INFO L225 Difference]: With dead ends: 53 [2023-11-26 12:04:29,482 INFO L226 Difference]: Without dead ends: 51 [2023-11-26 12:04:29,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:29,484 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 93 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:29,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 96 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:29,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-26 12:04:29,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-26 12:04:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.9) internal successors, (95), 50 states have internal predecessors, (95), 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) [2023-11-26 12:04:29,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 95 transitions. [2023-11-26 12:04:29,507 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 95 transitions. Word has length 5 [2023-11-26 12:04:29,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:29,507 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 95 transitions. [2023-11-26 12:04:29,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-26 12:04:29,508 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 95 transitions. [2023-11-26 12:04:29,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:29,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:29,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:29,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:04:29,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:29,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:29,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:29,713 INFO L85 PathProgramCache]: Analyzing trace with hash 57812329, now seen corresponding path program 1 times [2023-11-26 12:04:29,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:04:29,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442573137] [2023-11-26 12:04:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:29,715 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:29,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:04:29,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:04:29,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-26 12:04:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:29,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:04:29,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:29,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:29,887 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:04:29,889 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:04:29,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442573137] [2023-11-26 12:04:29,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442573137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:29,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:29,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:29,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399847535] [2023-11-26 12:04:29,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:29,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:29,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:04:29,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:29,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:29,899 INFO L87 Difference]: Start difference. First operand 51 states and 95 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:29,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:29,967 INFO L93 Difference]: Finished difference Result 100 states and 185 transitions. [2023-11-26 12:04:29,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:29,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-26 12:04:29,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:29,969 INFO L225 Difference]: With dead ends: 100 [2023-11-26 12:04:29,969 INFO L226 Difference]: Without dead ends: 100 [2023-11-26 12:04:29,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:29,971 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 77 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:29,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 239 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:29,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-26 12:04:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2023-11-26 12:04:29,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.90625) internal successors, (183), 96 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:29,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2023-11-26 12:04:29,988 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2023-11-26 12:04:29,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:29,989 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2023-11-26 12:04:29,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:29,990 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2023-11-26 12:04:29,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:29,991 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:29,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:30,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:04:30,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:30,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:30,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:30,195 INFO L85 PathProgramCache]: Analyzing trace with hash 57589377, now seen corresponding path program 1 times [2023-11-26 12:04:30,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:04:30,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [530397322] [2023-11-26 12:04:30,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:30,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:30,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:04:30,199 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:04:30,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-26 12:04:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:30,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:04:30,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:30,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:30,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:04:30,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:04:30,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [530397322] [2023-11-26 12:04:30,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [530397322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:30,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:30,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719145231] [2023-11-26 12:04:30,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:30,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:30,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:04:30,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:30,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:30,366 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:30,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:30,398 INFO L93 Difference]: Finished difference Result 98 states and 184 transitions. [2023-11-26 12:04:30,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:30,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-26 12:04:30,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:30,401 INFO L225 Difference]: With dead ends: 98 [2023-11-26 12:04:30,405 INFO L226 Difference]: Without dead ends: 98 [2023-11-26 12:04:30,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:30,407 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 14 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:30,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 183 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:30,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-26 12:04:30,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-26 12:04:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.8969072164948453) internal successors, (184), 97 states have internal predecessors, (184), 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) [2023-11-26 12:04:30,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2023-11-26 12:04:30,428 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2023-11-26 12:04:30,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:30,430 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2023-11-26 12:04:30,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:30,430 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2023-11-26 12:04:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:30,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:30,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:30,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:04:30,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:30,637 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:30,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:30,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1631131413, now seen corresponding path program 1 times [2023-11-26 12:04:30,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:04:30,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47512423] [2023-11-26 12:04:30,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:30,639 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:30,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:04:30,641 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:04:30,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-26 12:04:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:30,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:04:30,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:30,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:04:30,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:04:30,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47512423] [2023-11-26 12:04:30,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47512423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:30,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:30,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:30,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714202448] [2023-11-26 12:04:30,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:30,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:30,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:04:30,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:30,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:30,742 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:30,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:30,759 INFO L93 Difference]: Finished difference Result 138 states and 252 transitions. [2023-11-26 12:04:30,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:30,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-26 12:04:30,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:30,762 INFO L225 Difference]: With dead ends: 138 [2023-11-26 12:04:30,762 INFO L226 Difference]: Without dead ends: 138 [2023-11-26 12:04:30,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:30,764 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 77 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:30,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 133 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:30,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-26 12:04:30,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2023-11-26 12:04:30,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.8656716417910448) internal successors, (250), 134 states have internal predecessors, (250), 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) [2023-11-26 12:04:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2023-11-26 12:04:30,776 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2023-11-26 12:04:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:30,776 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2023-11-26 12:04:30,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2023-11-26 12:04:30,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:30,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:30,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:30,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:04:30,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:30,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:30,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:30,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1631354365, now seen corresponding path program 1 times [2023-11-26 12:04:30,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:04:30,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2147115047] [2023-11-26 12:04:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:30,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:30,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:04:30,984 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:04:30,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-26 12:04:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:04:31,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:31,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:31,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:04:31,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:04:31,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2147115047] [2023-11-26 12:04:31,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2147115047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:31,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:31,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:31,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202991829] [2023-11-26 12:04:31,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:31,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:31,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:04:31,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:31,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:31,106 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:31,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:31,128 INFO L93 Difference]: Finished difference Result 136 states and 245 transitions. [2023-11-26 12:04:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:31,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-11-26 12:04:31,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:31,131 INFO L225 Difference]: With dead ends: 136 [2023-11-26 12:04:31,131 INFO L226 Difference]: Without dead ends: 136 [2023-11-26 12:04:31,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:31,135 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 75 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:31,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 211 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:31,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-11-26 12:04:31,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2023-11-26 12:04:31,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 1.8409090909090908) internal successors, (243), 132 states have internal predecessors, (243), 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) [2023-11-26 12:04:31,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2023-11-26 12:04:31,162 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2023-11-26 12:04:31,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:31,163 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2023-11-26 12:04:31,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:31,163 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2023-11-26 12:04:31,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:31,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:31,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:31,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:04:31,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:31,372 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-26 12:04:31,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:31,373 INFO L85 PathProgramCache]: Analyzing trace with hash 669691177, now seen corresponding path program 1 times [2023-11-26 12:04:31,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:04:31,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56204394] [2023-11-26 12:04:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:31,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:31,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:04:31,375 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:04:31,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-26 12:04:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:31,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:31,468 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-26 12:04:31,469 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:04:31,470 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2023-11-26 12:04:31,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2023-11-26 12:04:31,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:04:31,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:04:31,679 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:31,687 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:04:31,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:31 BoogieIcfgContainer [2023-11-26 12:04:31,760 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:04:31,760 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:04:31,761 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:04:31,761 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:04:31,761 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:28" (3/4) ... [2023-11-26 12:04:31,763 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:04:31,764 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:04:31,765 INFO L158 Benchmark]: Toolchain (without parser) took 4357.72ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 54.5MB in the beginning and 56.3MB in the end (delta: -1.7MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2023-11-26 12:04:31,765 INFO L158 Benchmark]: CDTParser took 1.29ms. Allocated memory is still 56.6MB. Free memory was 32.9MB in the beginning and 32.9MB in the end (delta: 41.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:31,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.71ms. Allocated memory is still 77.6MB. Free memory was 54.3MB in the beginning and 42.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:04:31,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.80ms. Allocated memory is still 77.6MB. Free memory was 42.1MB in the beginning and 40.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:31,766 INFO L158 Benchmark]: Boogie Preprocessor took 127.77ms. Allocated memory is still 77.6MB. Free memory was 40.2MB in the beginning and 57.3MB in the end (delta: -17.1MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-11-26 12:04:31,767 INFO L158 Benchmark]: RCFGBuilder took 677.58ms. Allocated memory is still 77.6MB. Free memory was 57.3MB in the beginning and 39.2MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 12:04:31,767 INFO L158 Benchmark]: TraceAbstraction took 3046.99ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 38.5MB in the beginning and 57.0MB in the end (delta: -18.5MB). Peak memory consumption was 321.8kB. Max. memory is 16.1GB. [2023-11-26 12:04:31,767 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 94.4MB. Free memory was 57.0MB in the beginning and 56.3MB in the end (delta: 724.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:31,770 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29ms. Allocated memory is still 56.6MB. Free memory was 32.9MB in the beginning and 32.9MB in the end (delta: 41.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.71ms. Allocated memory is still 77.6MB. Free memory was 54.3MB in the beginning and 42.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.80ms. Allocated memory is still 77.6MB. Free memory was 42.1MB in the beginning and 40.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 127.77ms. Allocated memory is still 77.6MB. Free memory was 40.2MB in the beginning and 57.3MB in the end (delta: -17.1MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * RCFGBuilder took 677.58ms. Allocated memory is still 77.6MB. Free memory was 57.3MB in the beginning and 39.2MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3046.99ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 38.5MB in the beginning and 57.0MB in the end (delta: -18.5MB). Peak memory consumption was 321.8kB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 94.4MB. Free memory was 57.0MB in the beginning and 56.3MB in the end (delta: 724.3kB). There was no memory consumed. 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 - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0] [L93] COND FALSE !(p1 != 0) VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0] [L97] COND FALSE !(p2 != 0) VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0] [L101] COND FALSE !(p3 != 0) VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0] [L105] COND TRUE p4 != 0 [L106] lk4 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2] [L109] COND TRUE p5 != 0 [L110] lk5 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2] [L113] COND TRUE p6 != 0 [L114] lk6 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2] [L117] COND TRUE p7 != 0 [L118] lk7 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2] [L121] COND TRUE p8 != 0 [L122] lk8 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2] [L125] COND TRUE p9 != 0 [L126] lk9 = 1 VAL [cond=2, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L129] COND TRUE p10 != 0 [L130] lk10 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L133] COND FALSE !(p11 != 0) VAL [cond=2, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L137] COND TRUE p12 != 0 [L138] lk12 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=0, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L141] COND TRUE p13 != 0 [L142] lk13 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=0, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p13=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L145] COND TRUE p14 != 0 [L146] lk14 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=0, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p13=2, p14=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L149] COND TRUE p15 != 0 [L150] lk15 = 1 VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L155] COND FALSE !(p1 != 0) VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L160] COND FALSE !(p2 != 0) VAL [cond=2, lk10=1, lk11=0, lk12=1, lk13=1, lk14=1, lk15=1, lk1=0, lk2=0, lk3=0, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p10=2, p11=0, p12=2, p13=2, p14=2, p15=2, p1=0, p2=0, p3=0, p4=2, p5=2, p6=2, p7=2, p8=2, p9=2] [L233] CALL reach_error() [L3] __assert_fail("0", "test_locks_15-1.c", 3, "reach_error") - UnprovableResult [Line: 6]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 336 mSDsluCounter, 959 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 303 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 656 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=5, InterpolantAutomatonStates: 17, 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, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 251 SizeOfPredicates, 0 NumberOfNonLiveVariables, 279 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 12:04:31,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1ab72a-5ca9-4d63-a99b-3b9006a4d097/bin/uautomizer-verify-VRDe98Ueme/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: UNKNOWN: Overapproximated counterexample