./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd --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 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:37:38,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:37:38,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 13:37:38,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:37:38,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:37:38,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:37:38,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:37:38,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:37:38,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:37:38,260 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:37:38,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:37:38,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:37:38,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:37:38,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:37:38,263 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:37:38,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:37:38,264 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:37:38,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:37:38,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:37:38,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:37:38,265 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 13:37:38,265 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 13:37:38,265 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 13:37:38,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:37:38,265 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:37:38,265 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:37:38,265 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:37:38,265 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:37:38,266 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:37:38,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:37:38,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:37:38,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:37:38,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:37:38,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:37:38,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:37:38,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:37:38,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:37:38,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:37:38,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:37:38,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:37:38,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:37:38,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:37:38,267 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd 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 -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2024-11-13 13:37:38,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:37:38,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:37:38,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:37:38,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:37:38,694 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:37:38,698 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i Unable to find full path for "g++" [2024-11-13 13:37:41,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:37:41,585 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:37:41,590 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2024-11-13 13:37:41,619 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/data/6e9b6c8e9/d5eb335dd28241e5aaa1ef35e9f18aca/FLAG4bcbd5ae9 [2024-11-13 13:37:41,644 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/data/6e9b6c8e9/d5eb335dd28241e5aaa1ef35e9f18aca [2024-11-13 13:37:41,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:37:41,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:37:41,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:37:41,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:37:41,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:37:41,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:41" (1/1) ... [2024-11-13 13:37:41,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a879b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:41, skipping insertion in model container [2024-11-13 13:37:41,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:41" (1/1) ... [2024-11-13 13:37:41,734 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:37:42,411 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:37:42,425 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:37:42,434 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 13:37:42,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:37:42,452 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:37:42,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:37:42,613 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:37:42,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42 WrapperNode [2024-11-13 13:37:42,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:37:42,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:37:42,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:37:42,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:37:42,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,653 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,673 INFO L138 Inliner]: procedures = 261, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2024-11-13 13:37:42,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:37:42,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:37:42,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:37:42,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:37:42,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,689 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,704 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 2 writes are split as follows [2]. [2024-11-13 13:37:42,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:37:42,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:37:42,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:37:42,723 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:37:42,724 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (1/1) ... [2024-11-13 13:37:42,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:37:42,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:37:42,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:37:42,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:37:42,801 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-13 13:37:42,802 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-13 13:37:42,802 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-13 13:37:42,802 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-13 13:37:42,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 13:37:42,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 13:37:42,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 13:37:42,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:37:42,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:37:42,804 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 13:37:42,972 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:37:42,975 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:37:43,251 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:37:43,251 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:37:43,409 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:37:43,409 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 13:37:43,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:43 BoogieIcfgContainer [2024-11-13 13:37:43,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:37:43,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:37:43,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:37:43,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:37:43,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:37:41" (1/3) ... [2024-11-13 13:37:43,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284958c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:37:43, skipping insertion in model container [2024-11-13 13:37:43,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:42" (2/3) ... [2024-11-13 13:37:43,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284958c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:37:43, skipping insertion in model container [2024-11-13 13:37:43,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:43" (3/3) ... [2024-11-13 13:37:43,426 INFO L112 eAbstractionObserver]: Analyzing ICFG fillarray1.i [2024-11-13 13:37:43,448 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:37:43,451 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG fillarray1.i that has 3 procedures, 29 locations, 1 initial locations, 4 loop locations, and 8 error locations. [2024-11-13 13:37:43,451 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:37:43,543 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 13:37:43,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 33 transitions, 74 flow [2024-11-13 13:37:43,643 INFO L124 PetriNetUnfolderBase]: 4/33 cut-off events. [2024-11-13 13:37:43,647 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:37:43,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 33 events. 4/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 67 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2024-11-13 13:37:43,654 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 33 transitions, 74 flow [2024-11-13 13:37:43,659 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 31 transitions, 68 flow [2024-11-13 13:37:43,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:37:43,702 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@482c27fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:37:43,702 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-13 13:37:43,709 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:37:43,709 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-13 13:37:43,709 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:37:43,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:37:43,710 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-13 13:37:43,711 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (and 11 more)] === [2024-11-13 13:37:43,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash 241728, now seen corresponding path program 1 times [2024-11-13 13:37:43,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:37:43,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974988888] [2024-11-13 13:37:43,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:43,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:37:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:37:43,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:37:43,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:37:43,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974988888] [2024-11-13 13:37:43,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974988888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:37:43,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:37:43,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 13:37:43,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511741840] [2024-11-13 13:37:43,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:37:43,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:37:43,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:37:44,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:37:44,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:37:44,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 33 [2024-11-13 13:37:44,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:37:44,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:37:44,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 33 [2024-11-13 13:37:44,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:37:44,357 INFO L124 PetriNetUnfolderBase]: 212/427 cut-off events. [2024-11-13 13:37:44,357 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 13:37:44,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 427 events. 212/427 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1961 event pairs, 144 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 750. Up to 256 conditions per place. [2024-11-13 13:37:44,369 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 22 selfloop transitions, 3 changer transitions 2/40 dead transitions. [2024-11-13 13:37:44,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 140 flow [2024-11-13 13:37:44,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:37:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:37:44,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-13 13:37:44,390 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7373737373737373 [2024-11-13 13:37:44,392 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 68 flow. Second operand 3 states and 73 transitions. [2024-11-13 13:37:44,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 140 flow [2024-11-13 13:37:44,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 40 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:37:44,405 INFO L231 Difference]: Finished difference. Result has 34 places, 30 transitions, 75 flow [2024-11-13 13:37:44,409 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=34, PETRI_TRANSITIONS=30} [2024-11-13 13:37:44,416 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2024-11-13 13:37:44,416 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 30 transitions, 75 flow [2024-11-13 13:37:44,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:37:44,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:37:44,418 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:37:44,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:37:44,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (and 11 more)] === [2024-11-13 13:37:44,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:44,420 INFO L85 PathProgramCache]: Analyzing trace with hash -36108369, now seen corresponding path program 1 times [2024-11-13 13:37:44,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:37:44,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920816319] [2024-11-13 13:37:44,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:44,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:37:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:37:44,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:37:44,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:37:44,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920816319] [2024-11-13 13:37:44,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920816319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:37:44,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:37:44,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:37:44,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26473259] [2024-11-13 13:37:44,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:37:44,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:37:44,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:37:44,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:37:44,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:37:44,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 33 [2024-11-13 13:37:44,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:37:44,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:37:44,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 33 [2024-11-13 13:37:44,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:37:44,806 INFO L124 PetriNetUnfolderBase]: 215/464 cut-off events. [2024-11-13 13:37:44,807 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-13 13:37:44,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 464 events. 215/464 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2352 event pairs, 144 based on Foata normal form. 0/335 useless extension candidates. Maximal degree in co-relation 829. Up to 255 conditions per place. [2024-11-13 13:37:44,824 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 23 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2024-11-13 13:37:44,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 37 transitions, 139 flow [2024-11-13 13:37:44,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:37:44,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:37:44,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-11-13 13:37:44,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6868686868686869 [2024-11-13 13:37:44,828 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 75 flow. Second operand 3 states and 68 transitions. [2024-11-13 13:37:44,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 37 transitions, 139 flow [2024-11-13 13:37:44,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 37 transitions, 128 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-13 13:37:44,833 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 66 flow [2024-11-13 13:37:44,834 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2024-11-13 13:37:44,835 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2024-11-13 13:37:44,835 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 66 flow [2024-11-13 13:37:44,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:37:44,835 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:37:44,836 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:37:44,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:37:44,836 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (and 11 more)] === [2024-11-13 13:37:44,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:44,837 INFO L85 PathProgramCache]: Analyzing trace with hash -35260126, now seen corresponding path program 1 times [2024-11-13 13:37:44,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:37:44,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68909611] [2024-11-13 13:37:44,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:44,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:37:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:37:44,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:37:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:37:44,940 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:37:44,941 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:37:44,942 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2024-11-13 13:37:44,944 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (12 of 14 remaining) [2024-11-13 13:37:44,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (11 of 14 remaining) [2024-11-13 13:37:44,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (10 of 14 remaining) [2024-11-13 13:37:44,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (9 of 14 remaining) [2024-11-13 13:37:44,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-11-13 13:37:44,945 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2024-11-13 13:37:44,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2024-11-13 13:37:44,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2024-11-13 13:37:44,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2024-11-13 13:37:44,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2024-11-13 13:37:44,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2024-11-13 13:37:44,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2024-11-13 13:37:44,946 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining) [2024-11-13 13:37:44,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:37:44,947 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 13:37:44,996 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 13:37:44,996 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:37:45,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:37:45 BasicIcfg [2024-11-13 13:37:45,005 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:37:45,006 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:37:45,006 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:37:45,007 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:37:45,007 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:43" (3/4) ... [2024-11-13 13:37:45,011 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 13:37:45,072 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:37:45,072 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:37:45,073 INFO L158 Benchmark]: Toolchain (without parser) took 3423.56ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 87.6MB in the end (delta: 41.0MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2024-11-13 13:37:45,073 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:45,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 964.64ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 101.9MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 13:37:45,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.12ms. Allocated memory is still 167.8MB. Free memory was 101.9MB in the beginning and 99.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:45,074 INFO L158 Benchmark]: Boogie Preprocessor took 46.42ms. Allocated memory is still 167.8MB. Free memory was 99.8MB in the beginning and 98.1MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:37:45,075 INFO L158 Benchmark]: RCFGBuilder took 687.64ms. Allocated memory is still 167.8MB. Free memory was 97.9MB in the beginning and 74.7MB in the end (delta: 23.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:37:45,075 INFO L158 Benchmark]: TraceAbstraction took 1592.16ms. Allocated memory is still 167.8MB. Free memory was 74.3MB in the beginning and 91.2MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:45,076 INFO L158 Benchmark]: Witness Printer took 65.56ms. Allocated memory is still 167.8MB. Free memory was 91.2MB in the beginning and 87.6MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:37:45,079 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 964.64ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 101.9MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.12ms. Allocated memory is still 167.8MB. Free memory was 101.9MB in the beginning and 99.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.42ms. Allocated memory is still 167.8MB. Free memory was 99.8MB in the beginning and 98.1MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 687.64ms. Allocated memory is still 167.8MB. Free memory was 97.9MB in the beginning and 74.7MB in the end (delta: 23.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1592.16ms. Allocated memory is still 167.8MB. Free memory was 74.3MB in the beginning and 91.2MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 65.56ms. Allocated memory is still 167.8MB. Free memory was 91.2MB in the beginning and 87.6MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1037] 0 int size; [L1038] 0 int ind; [L1039] 0 int j = 2, i = 1; [L1040] 0 int x, y, z; [L1068] 0 size = __VERIFIER_nondet_int() [L1069] COND FALSE 0 !(size < 1 || size > 20) [L1072] 0 int *a = (int *)malloc(size); [L1073] 0 pthread_t id1, id2; [L1074] 0 ind = 0 [L1075] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [\old(arg)={-1:0}, \old(argc)=6, \old(argv)={4:5}, a={-1:0}, argc=6, i=1, id1=0, ind=0, j=2, size=2, x=0, y=0, z=0] [L1042] 1 x = 1 [L1043] 1 y = 1 [L1044] 1 int *a = (int *)arg; VAL [\old(arg)={-1:0}, a={-1:0}, arg={-1:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1045] COND FALSE 1 !(y == 1 && z) VAL [\old(arg)={-1:0}, a={-1:0}, arg={-1:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1047] COND TRUE 1 ind < size - 1 [L1048] 1 ++ind VAL [\old(arg)={-1:0}, a={-1:0}, arg={-1:0}, i=1, ind=1, j=2, size=2, x=1, y=1, z=0] [L1049] 1 a[ind] = i - UnprovableResult [Line: 1067]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1075]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1076]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 45 locations, 14 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: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 78 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be incorrect! [2024-11-13 13:37:45,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57b07fe-f1d8-4f76-b5aa-3638b5041158/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)