./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_57-singlethreaded-unlock_true.i --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_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_57-singlethreaded-unlock_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI --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 11951524cd85112f2fd2ba609f320369af87d9ba4a63c5effcd0e29d07efd1ae --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:04:24,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:04:24,729 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 22:04:24,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:04:24,735 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:04:24,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:04:24,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:04:24,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:04:24,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 22:04:24,768 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 22:04:24,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:04:24,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:04:24,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:04:24,771 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:04:24,771 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:04:24,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:04:24,772 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:04:24,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:04:24,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:04:24,774 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:04:24,775 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:04:24,780 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:04:24,781 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:04:24,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:04:24,781 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:04:24,782 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:04:24,782 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:04:24,783 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:04:24,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:04:24,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:04:24,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:04:24,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:04:24,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 22:04:24,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:04:24,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:04:24,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:04:24,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:04:24,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:04:24,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 22:04:24,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 22:04:24,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:04:24,804 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_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11951524cd85112f2fd2ba609f320369af87d9ba4a63c5effcd0e29d07efd1ae [2023-11-24 22:04:25,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:04:25,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:04:25,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:04:25,219 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:04:25,219 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:04:25,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/goblint-regression/13-privatized_57-singlethreaded-unlock_true.i [2023-11-24 22:04:28,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:04:28,890 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:04:28,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/sv-benchmarks/c/goblint-regression/13-privatized_57-singlethreaded-unlock_true.i [2023-11-24 22:04:28,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/data/853314650/d0d8462ede394f3d8fc20b973c5abdf4/FLAG2ccec806d [2023-11-24 22:04:28,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/data/853314650/d0d8462ede394f3d8fc20b973c5abdf4 [2023-11-24 22:04:28,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:04:28,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:04:28,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:04:28,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:04:28,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:04:28,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:04:28" (1/1) ... [2023-11-24 22:04:28,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc91263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:28, skipping insertion in model container [2023-11-24 22:04:28,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:04:28" (1/1) ... [2023-11-24 22:04:28,995 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:04:29,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:04:29,373 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:04:29,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:04:29,533 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:04:29,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29 WrapperNode [2023-11-24 22:04:29,534 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:04:29,535 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:04:29,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:04:29,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:04:29,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,608 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2023-11-24 22:04:29,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:04:29,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:04:29,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:04:29,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:04:29,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,637 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,661 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 5, 1]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2023-11-24 22:04:29,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:04:29,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:04:29,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:04:29,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:04:29,713 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (1/1) ... [2023-11-24 22:04:29,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 22:04:29,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 22:04:29,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 22:04:29,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 22:04:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-24 22:04:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-24 22:04:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-24 22:04:29,854 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 22:04:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:04:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:04:29,855 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-24 22:04:29,855 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-24 22:04:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:04:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 22:04:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-24 22:04:29,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-24 22:04:29,859 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 22:04:29,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:04:29,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:04:29,863 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 22:04:30,025 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:04:30,027 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:04:30,207 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:04:30,345 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:04:30,345 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:04:30,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:04:30 BoogieIcfgContainer [2023-11-24 22:04:30,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:04:30,349 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:04:30,350 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:04:30,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:04:30,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:04:28" (1/3) ... [2023-11-24 22:04:30,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6231805b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:04:30, skipping insertion in model container [2023-11-24 22:04:30,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:04:29" (2/3) ... [2023-11-24 22:04:30,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6231805b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:04:30, skipping insertion in model container [2023-11-24 22:04:30,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:04:30" (3/3) ... [2023-11-24 22:04:30,358 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_57-singlethreaded-unlock_true.i [2023-11-24 22:04:30,380 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:04:30,381 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 22:04:30,381 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 22:04:30,414 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-24 22:04:30,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 24 places, 22 transitions, 48 flow [2023-11-24 22:04:30,484 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2023-11-24 22:04:30,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 22:04:30,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 21 events. 2/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 12. Up to 2 conditions per place. [2023-11-24 22:04:30,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 22 transitions, 48 flow [2023-11-24 22:04:30,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 20 transitions, 43 flow [2023-11-24 22:04:30,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 22:04:30,512 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;@4c166afa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:04:30,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-24 22:04:30,520 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-24 22:04:30,520 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-24 22:04:30,520 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 22:04:30,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 22:04:30,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 22:04:30,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 22:04:30,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:04:30,530 INFO L85 PathProgramCache]: Analyzing trace with hash 483728090, now seen corresponding path program 1 times [2023-11-24 22:04:30,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:04:30,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136679825] [2023-11-24 22:04:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:04:30,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:04:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:04:30,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:04:30,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:04:30,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136679825] [2023-11-24 22:04:30,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136679825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:04:30,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:04:30,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:04:30,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794623964] [2023-11-24 22:04:30,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:04:30,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:04:30,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:04:30,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:04:30,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:04:31,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 22 [2023-11-24 22:04:31,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-11-24 22:04:31,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 22:04:31,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 22 [2023-11-24 22:04:31,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 22:04:31,062 INFO L124 PetriNetUnfolderBase]: 3/25 cut-off events. [2023-11-24 22:04:31,062 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 22:04:31,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 25 events. 3/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 2 based on Foata normal form. 4/28 useless extension candidates. Maximal degree in co-relation 27. Up to 10 conditions per place. [2023-11-24 22:04:31,064 INFO L140 encePairwiseOnDemand]: 17/22 looper letters, 10 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2023-11-24 22:04:31,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 17 transitions, 61 flow [2023-11-24 22:04:31,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:04:31,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 22:04:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2023-11-24 22:04:31,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-24 22:04:31,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 33 transitions. [2023-11-24 22:04:31,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 33 transitions. [2023-11-24 22:04:31,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 22:04:31,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 33 transitions. [2023-11-24 22:04:31,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-24 22:04:31,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-11-24 22:04:31,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-11-24 22:04:31,094 INFO L175 Difference]: Start difference. First operand has 22 places, 20 transitions, 43 flow. Second operand 3 states and 33 transitions. [2023-11-24 22:04:31,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 17 transitions, 61 flow [2023-11-24 22:04:31,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 60 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-24 22:04:31,100 INFO L231 Difference]: Finished difference. Result has 21 places, 16 transitions, 38 flow [2023-11-24 22:04:31,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=16} [2023-11-24 22:04:31,106 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -1 predicate places. [2023-11-24 22:04:31,107 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 16 transitions, 38 flow [2023-11-24 22:04:31,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-11-24 22:04:31,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 22:04:31,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 22:04:31,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 22:04:31,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 22:04:31,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:04:31,110 INFO L85 PathProgramCache]: Analyzing trace with hash 483728091, now seen corresponding path program 1 times [2023-11-24 22:04:31,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:04:31,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680212693] [2023-11-24 22:04:31,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:04:31,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:04:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:04:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:04:31,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:04:31,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680212693] [2023-11-24 22:04:31,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680212693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:04:31,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:04:31,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:04:31,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932055406] [2023-11-24 22:04:31,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:04:31,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:04:31,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:04:31,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:04:31,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:04:31,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 22 [2023-11-24 22:04:31,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 16 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:04:31,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 22:04:31,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 22 [2023-11-24 22:04:31,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 22:04:31,316 INFO L124 PetriNetUnfolderBase]: 3/24 cut-off events. [2023-11-24 22:04:31,317 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-24 22:04:31,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 24 events. 3/24 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 2 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 29. Up to 9 conditions per place. [2023-11-24 22:04:31,318 INFO L140 encePairwiseOnDemand]: 19/22 looper letters, 9 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2023-11-24 22:04:31,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 16 transitions, 60 flow [2023-11-24 22:04:31,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:04:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-24 22:04:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2023-11-24 22:04:31,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-24 22:04:31,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 33 transitions. [2023-11-24 22:04:31,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 33 transitions. [2023-11-24 22:04:31,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 22:04:31,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 33 transitions. [2023-11-24 22:04:31,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-24 22:04:31,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-11-24 22:04:31,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2023-11-24 22:04:31,324 INFO L175 Difference]: Start difference. First operand has 21 places, 16 transitions, 38 flow. Second operand 3 states and 33 transitions. [2023-11-24 22:04:31,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 16 transitions, 60 flow [2023-11-24 22:04:31,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 22:04:31,326 INFO L231 Difference]: Finished difference. Result has 20 places, 15 transitions, 36 flow [2023-11-24 22:04:31,326 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=20, PETRI_TRANSITIONS=15} [2023-11-24 22:04:31,327 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2023-11-24 22:04:31,327 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 15 transitions, 36 flow [2023-11-24 22:04:31,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:04:31,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 22:04:31,328 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:04:31,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 22:04:31,329 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 22:04:31,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:04:31,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2020993745, now seen corresponding path program 1 times [2023-11-24 22:04:31,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:04:31,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237348387] [2023-11-24 22:04:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:04:31,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:04:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:04:31,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:04:31,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:04:31,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237348387] [2023-11-24 22:04:31,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237348387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:04:31,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:04:31,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:04:31,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253100618] [2023-11-24 22:04:31,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:04:31,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:04:31,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:04:31,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:04:31,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:04:31,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 22 [2023-11-24 22:04:31,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 15 transitions, 36 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2023-11-24 22:04:31,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 22:04:31,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 22 [2023-11-24 22:04:31,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 22:04:31,694 INFO L124 PetriNetUnfolderBase]: 3/22 cut-off events. [2023-11-24 22:04:31,694 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-24 22:04:31,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 22 events. 3/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 28 event pairs, 2 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 27. Up to 9 conditions per place. [2023-11-24 22:04:31,695 INFO L140 encePairwiseOnDemand]: 18/22 looper letters, 7 selfloop transitions, 2 changer transitions 3/15 dead transitions. [2023-11-24 22:04:31,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 15 transitions, 58 flow [2023-11-24 22:04:31,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:04:31,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-24 22:04:31,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2023-11-24 22:04:31,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2023-11-24 22:04:31,698 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 40 transitions. [2023-11-24 22:04:31,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 40 transitions. [2023-11-24 22:04:31,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 22:04:31,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 40 transitions. [2023-11-24 22:04:31,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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) [2023-11-24 22:04:31,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2023-11-24 22:04:31,701 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2023-11-24 22:04:31,701 INFO L175 Difference]: Start difference. First operand has 20 places, 15 transitions, 36 flow. Second operand 4 states and 40 transitions. [2023-11-24 22:04:31,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 15 transitions, 58 flow [2023-11-24 22:04:31,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 15 transitions, 54 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 22:04:31,703 INFO L231 Difference]: Finished difference. Result has 20 places, 12 transitions, 30 flow [2023-11-24 22:04:31,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=30, PETRI_PLACES=20, PETRI_TRANSITIONS=12} [2023-11-24 22:04:31,704 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -2 predicate places. [2023-11-24 22:04:31,705 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 30 flow [2023-11-24 22:04:31,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2023-11-24 22:04:31,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-24 22:04:31,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 22:04:31,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 22:04:31,706 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2023-11-24 22:04:31,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:04:31,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2020994371, now seen corresponding path program 1 times [2023-11-24 22:04:31,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:04:31,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699958652] [2023-11-24 22:04:31,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:04:31,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:04:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:04:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:04:31,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:04:31,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699958652] [2023-11-24 22:04:31,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699958652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:04:31,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:04:31,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 22:04:31,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825969294] [2023-11-24 22:04:31,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:04:31,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:04:31,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:04:31,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:04:31,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:04:31,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 22 [2023-11-24 22:04:31,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 30 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:04:31,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-24 22:04:31,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 22 [2023-11-24 22:04:31,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-24 22:04:31,855 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-11-24 22:04:31,856 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-24 22:04:31,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 11 events. 1/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 2/13 useless extension candidates. Maximal degree in co-relation 13. Up to 5 conditions per place. [2023-11-24 22:04:31,856 INFO L140 encePairwiseOnDemand]: 19/22 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2023-11-24 22:04:31,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 10 transitions, 44 flow [2023-11-24 22:04:31,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:04:31,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-24 22:04:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 38 transitions. [2023-11-24 22:04:31,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4318181818181818 [2023-11-24 22:04:31,859 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 38 transitions. [2023-11-24 22:04:31,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 38 transitions. [2023-11-24 22:04:31,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-24 22:04:31,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 38 transitions. [2023-11-24 22:04:31,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2023-11-24 22:04:31,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2023-11-24 22:04:31,862 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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) [2023-11-24 22:04:31,862 INFO L175 Difference]: Start difference. First operand has 20 places, 12 transitions, 30 flow. Second operand 4 states and 38 transitions. [2023-11-24 22:04:31,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 10 transitions, 44 flow [2023-11-24 22:04:31,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 10 transitions, 41 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-24 22:04:31,864 INFO L231 Difference]: Finished difference. Result has 16 places, 0 transitions, 0 flow [2023-11-24 22:04:31,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=21, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=16, PETRI_TRANSITIONS=0} [2023-11-24 22:04:31,865 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -6 predicate places. [2023-11-24 22:04:31,866 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 0 transitions, 0 flow [2023-11-24 22:04:31,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 22:04:31,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2023-11-24 22:04:31,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2023-11-24 22:04:31,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (2 of 5 remaining) [2023-11-24 22:04:31,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2023-11-24 22:04:31,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2023-11-24 22:04:31,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 22:04:31,872 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-24 22:04:31,877 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 22:04:31,877 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 22:04:31,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 10:04:31 BasicIcfg [2023-11-24 22:04:31,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 22:04:31,886 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:04:31,886 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:04:31,886 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:04:31,887 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:04:30" (3/4) ... [2023-11-24 22:04:31,890 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:04:31,895 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-24 22:04:31,899 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-24 22:04:31,900 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 22:04:31,900 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 22:04:31,900 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-24 22:04:31,991 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/witness.graphml [2023-11-24 22:04:31,992 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/witness.yml [2023-11-24 22:04:31,992 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:04:31,993 INFO L158 Benchmark]: Toolchain (without parser) took 3054.70ms. Allocated memory is still 174.1MB. Free memory was 146.0MB in the beginning and 109.4MB in the end (delta: 36.6MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2023-11-24 22:04:31,993 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:04:31,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.38ms. Allocated memory is still 174.1MB. Free memory was 146.0MB in the beginning and 127.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 22:04:31,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.93ms. Allocated memory is still 174.1MB. Free memory was 127.1MB in the beginning and 125.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:04:31,995 INFO L158 Benchmark]: Boogie Preprocessor took 76.74ms. Allocated memory is still 174.1MB. Free memory was 125.0MB in the beginning and 122.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:04:31,996 INFO L158 Benchmark]: RCFGBuilder took 659.22ms. Allocated memory is still 174.1MB. Free memory was 122.9MB in the beginning and 127.0MB in the end (delta: -4.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:04:31,996 INFO L158 Benchmark]: TraceAbstraction took 1535.64ms. Allocated memory is still 174.1MB. Free memory was 126.1MB in the beginning and 113.6MB in the end (delta: 12.5MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-11-24 22:04:31,997 INFO L158 Benchmark]: Witness Printer took 106.38ms. Allocated memory is still 174.1MB. Free memory was 113.6MB in the beginning and 109.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:04:32,000 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.38ms. Allocated memory is still 174.1MB. Free memory was 146.0MB in the beginning and 127.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.93ms. Allocated memory is still 174.1MB. Free memory was 127.1MB in the beginning and 125.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.74ms. Allocated memory is still 174.1MB. Free memory was 125.0MB in the beginning and 122.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 659.22ms. Allocated memory is still 174.1MB. Free memory was 122.9MB in the beginning and 127.0MB in the end (delta: -4.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1535.64ms. Allocated memory is still 174.1MB. Free memory was 126.1MB in the beginning and 113.6MB in the end (delta: 12.5MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Witness Printer took 106.38ms. Allocated memory is still 174.1MB. Free memory was 113.6MB in the beginning and 109.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 686]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 24 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-24 22:04:32,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0eb91f2-2db8-4285-9e6d-0fdf2adb5ee7/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE