./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/reorder_5-2.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_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/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_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/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_a51fb874-51cd-42ae-b35c-da09064f85ff/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 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:09:47,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:09:47,499 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 16:09:47,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:09:47,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:09:47,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:09:47,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:09:47,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:09:47,551 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:09:47,552 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:09:47,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:09:47,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:09:47,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:09:47,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:09:47,554 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:09:47,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:09:47,554 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:09:47,554 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:09:47,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:09:47,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:09:47,555 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 16:09:47,555 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 16:09:47,555 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 16:09:47,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:09:47,555 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:09:47,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:09:47,555 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:09:47,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:09:47,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:09:47,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:09:47,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:09:47,556 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:09:47,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:09:47,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:09:47,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:09:47,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:09:47,558 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:09:47,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:09:47,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:09:47,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:09:47,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:09:47,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:09:47,559 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_a51fb874-51cd-42ae-b35c-da09064f85ff/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 -> 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 [2024-11-13 16:09:47,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:09:47,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:09:47,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:09:47,961 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:09:47,961 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:09:47,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread/reorder_5-2.i Unable to find full path for "g++" [2024-11-13 16:09:50,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:09:50,936 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:09:50,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/sv-benchmarks/c/pthread/reorder_5-2.i [2024-11-13 16:09:50,965 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/data/6cff5cd0c/8572b9ab0ca5499980962de98f4fcdc4/FLAG902616059 [2024-11-13 16:09:50,988 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/data/6cff5cd0c/8572b9ab0ca5499980962de98f4fcdc4 [2024-11-13 16:09:50,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:09:50,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:09:50,994 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:09:50,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:09:51,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:09:51,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:09:50" (1/1) ... [2024-11-13 16:09:51,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a6c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:51, skipping insertion in model container [2024-11-13 16:09:51,009 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:09:50" (1/1) ... [2024-11-13 16:09:51,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:09:51,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:09:51,840 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:09:51,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:09:52,026 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:09:52,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52 WrapperNode [2024-11-13 16:09:52,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:09:52,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:09:52,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:09:52,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:09:52,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,086 INFO L138 Inliner]: procedures = 371, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 133 [2024-11-13 16:09:52,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:09:52,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:09:52,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:09:52,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:09:52,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,108 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,144 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-13 16:09:52,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:09:52,192 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:09:52,192 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:09:52,192 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:09:52,193 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (1/1) ... [2024-11-13 16:09:52,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:09:52,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:09:52,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:09:52,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:09:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 16:09:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:09:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:09:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 16:09:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:09:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:09:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 16:09:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-13 16:09:52,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-13 16:09:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:09:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:09:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 16:09:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:09:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-13 16:09:52,288 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-13 16:09:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:09:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:09:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:09:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:09:52,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:09:52,290 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 16:09:52,474 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:09:52,477 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:09:52,866 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:09:52,867 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:09:53,039 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:09:53,039 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 16:09:53,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:09:53 BoogieIcfgContainer [2024-11-13 16:09:53,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:09:53,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:09:53,044 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:09:53,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:09:53,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:09:50" (1/3) ... [2024-11-13 16:09:53,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff0d572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:09:53, skipping insertion in model container [2024-11-13 16:09:53,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:09:52" (2/3) ... [2024-11-13 16:09:53,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff0d572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:09:53, skipping insertion in model container [2024-11-13 16:09:53,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:09:53" (3/3) ... [2024-11-13 16:09:53,055 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5-2.i [2024-11-13 16:09:53,072 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:09:53,074 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG reorder_5-2.i that has 3 procedures, 48 locations, 1 initial locations, 4 loop locations, and 12 error locations. [2024-11-13 16:09:53,074 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:09:53,140 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-13 16:09:53,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 56 transitions, 132 flow [2024-11-13 16:09:53,269 INFO L124 PetriNetUnfolderBase]: 12/131 cut-off events. [2024-11-13 16:09:53,271 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-13 16:09:53,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 131 events. 12/131 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 636 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2024-11-13 16:09:53,276 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 56 transitions, 132 flow [2024-11-13 16:09:53,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 56 transitions, 132 flow [2024-11-13 16:09:53,292 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:09:53,309 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;@73ae8935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:09:53,310 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-13 16:09:53,317 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:09:53,319 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2024-11-13 16:09:53,320 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:09:53,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:09:53,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-13 16:09:53,321 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-13 16:09:53,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:09:53,330 INFO L85 PathProgramCache]: Analyzing trace with hash 12139081, now seen corresponding path program 1 times [2024-11-13 16:09:53,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:09:53,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232108439] [2024-11-13 16:09:53,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:09:53,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:09:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:09:53,526 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 16:09:53,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:09:53,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232108439] [2024-11-13 16:09:53,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232108439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:09:53,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:09:53,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 16:09:53,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534684876] [2024-11-13 16:09:53,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:09:53,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:09:53,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:09:53,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:09:53,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:09:53,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 56 [2024-11-13 16:09:53,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 132 flow. Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 16:09:53,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:09:53,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 56 [2024-11-13 16:09:53,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:09:53,813 INFO L124 PetriNetUnfolderBase]: 86/374 cut-off events. [2024-11-13 16:09:53,813 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-11-13 16:09:53,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 374 events. 86/374 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2553 event pairs, 71 based on Foata normal form. 24/272 useless extension candidates. Maximal degree in co-relation 373. Up to 190 conditions per place. [2024-11-13 16:09:53,818 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 24 selfloop transitions, 0 changer transitions 0/52 dead transitions. [2024-11-13 16:09:53,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 52 transitions, 172 flow [2024-11-13 16:09:53,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:09:53,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-13 16:09:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2024-11-13 16:09:53,890 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-13 16:09:53,892 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 132 flow. Second operand 2 states and 84 transitions. [2024-11-13 16:09:53,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 52 transitions, 172 flow [2024-11-13 16:09:53,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:09:53,907 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 124 flow [2024-11-13 16:09:53,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2024-11-13 16:09:53,920 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2024-11-13 16:09:53,920 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 124 flow [2024-11-13 16:09:53,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 16:09:53,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:09:53,921 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:09:53,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:09:53,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-13 16:09:53,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:09:53,922 INFO L85 PathProgramCache]: Analyzing trace with hash 376381622, now seen corresponding path program 1 times [2024-11-13 16:09:53,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:09:53,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784350685] [2024-11-13 16:09:53,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:09:53,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:09:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:09:54,255 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 16:09:54,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:09:54,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784350685] [2024-11-13 16:09:54,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784350685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:09:54,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:09:54,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:09:54,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049217372] [2024-11-13 16:09:54,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:09:54,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:09:54,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:09:54,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:09:54,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:09:54,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 56 [2024-11-13 16:09:54,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 16:09:54,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:09:54,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 56 [2024-11-13 16:09:54,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:09:54,497 INFO L124 PetriNetUnfolderBase]: 97/367 cut-off events. [2024-11-13 16:09:54,497 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-13 16:09:54,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 367 events. 97/367 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2448 event pairs, 65 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 604. Up to 168 conditions per place. [2024-11-13 16:09:54,505 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 27 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2024-11-13 16:09:54,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 184 flow [2024-11-13 16:09:54,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:09:54,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:09:54,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-13 16:09:54,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6130952380952381 [2024-11-13 16:09:54,510 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 124 flow. Second operand 3 states and 103 transitions. [2024-11-13 16:09:54,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 184 flow [2024-11-13 16:09:54,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 53 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:09:54,515 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 124 flow [2024-11-13 16:09:54,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2024-11-13 16:09:54,517 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2024-11-13 16:09:54,518 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 124 flow [2024-11-13 16:09:54,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 16:09:54,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:09:54,518 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:09:54,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:09:54,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-13 16:09:54,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:09:54,521 INFO L85 PathProgramCache]: Analyzing trace with hash 376381623, now seen corresponding path program 1 times [2024-11-13 16:09:54,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:09:54,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667590380] [2024-11-13 16:09:54,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:09:54,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:09:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:09:54,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:09:54,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:09:54,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667590380] [2024-11-13 16:09:54,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667590380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:09:54,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:09:54,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:09:54,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228164885] [2024-11-13 16:09:54,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:09:54,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:09:54,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:09:54,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:09:54,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:09:55,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 56 [2024-11-13 16:09:55,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 16:09:55,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:09:55,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 56 [2024-11-13 16:09:55,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:09:55,458 INFO L124 PetriNetUnfolderBase]: 184/694 cut-off events. [2024-11-13 16:09:55,459 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-13 16:09:55,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 694 events. 184/694 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5532 event pairs, 124 based on Foata normal form. 1/523 useless extension candidates. Maximal degree in co-relation 1169. Up to 215 conditions per place. [2024-11-13 16:09:55,465 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 47 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-11-13 16:09:55,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 298 flow [2024-11-13 16:09:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:09:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:09:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2024-11-13 16:09:55,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7008928571428571 [2024-11-13 16:09:55,467 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 124 flow. Second operand 4 states and 157 transitions. [2024-11-13 16:09:55,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 298 flow [2024-11-13 16:09:55,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:09:55,471 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 146 flow [2024-11-13 16:09:55,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2024-11-13 16:09:55,473 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2024-11-13 16:09:55,473 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 146 flow [2024-11-13 16:09:55,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 16:09:55,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:09:55,473 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:09:55,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:09:55,473 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-13 16:09:55,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:09:55,474 INFO L85 PathProgramCache]: Analyzing trace with hash 842636231, now seen corresponding path program 1 times [2024-11-13 16:09:55,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:09:55,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085092859] [2024-11-13 16:09:55,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:09:55,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:09:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:09:55,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:09:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:09:55,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:09:55,540 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:09:55,542 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2024-11-13 16:09:55,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2024-11-13 16:09:55,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2024-11-13 16:09:55,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining) [2024-11-13 16:09:55,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2024-11-13 16:09:55,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2024-11-13 16:09:55,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2024-11-13 16:09:55,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2024-11-13 16:09:55,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2024-11-13 16:09:55,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2024-11-13 16:09:55,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2024-11-13 16:09:55,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining) [2024-11-13 16:09:55,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2024-11-13 16:09:55,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2024-11-13 16:09:55,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2024-11-13 16:09:55,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:09:55,549 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 16:09:55,586 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 16:09:55,588 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:09:55,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:09:55 BasicIcfg [2024-11-13 16:09:55,598 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:09:55,599 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:09:55,600 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:09:55,600 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:09:55,601 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:09:53" (3/4) ... [2024-11-13 16:09:55,604 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:09:55,606 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:09:55,608 INFO L158 Benchmark]: Toolchain (without parser) took 4615.07ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 41.2MB in the end (delta: 49.3MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2024-11-13 16:09:55,608 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:09:55,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1034.69ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 51.9MB in the end (delta: 38.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 16:09:55,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.58ms. Allocated memory is still 117.4MB. Free memory was 51.9MB in the beginning and 49.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:09:55,609 INFO L158 Benchmark]: Boogie Preprocessor took 102.99ms. Allocated memory is still 117.4MB. Free memory was 49.5MB in the beginning and 47.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:09:55,610 INFO L158 Benchmark]: RCFGBuilder took 848.01ms. Allocated memory is still 117.4MB. Free memory was 47.4MB in the beginning and 71.5MB in the end (delta: -24.1MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2024-11-13 16:09:55,610 INFO L158 Benchmark]: TraceAbstraction took 2555.01ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 42.0MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-13 16:09:55,611 INFO L158 Benchmark]: Witness Printer took 6.89ms. Allocated memory is still 117.4MB. Free memory was 42.0MB in the beginning and 41.2MB in the end (delta: 779.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:09:55,613 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1034.69ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 51.9MB in the end (delta: 38.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.58ms. Allocated memory is still 117.4MB. Free memory was 51.9MB in the beginning and 49.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 102.99ms. Allocated memory is still 117.4MB. Free memory was 49.5MB in the beginning and 47.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 848.01ms. Allocated memory is still 117.4MB. Free memory was 47.4MB in the beginning and 71.5MB in the end (delta: -24.1MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2555.01ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 42.0MB in the end (delta: 29.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 6.89ms. Allocated memory is still 117.4MB. Free memory was 42.0MB in the beginning and 41.2MB in the end (delta: 779.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: overapproximation of sscanf at line 1245, overapproximation of sscanf at line 1246. Possible FailurePath: [L1229] static int iSet = 4; [L1230] static int iCheck = 1; [L1231] static int a = 0; [L1232] static int b = 0; [L1239] int i, err; VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1240] COND TRUE argc != 1 VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1241] COND FALSE !(argc != 3) VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1245] argv[1] [L1246] argv[2] [L1249] pthread_t setPool[iSet]; [L1250] pthread_t checkPool[iCheck]; [L1251] i = 0 VAL [\old(argc)=3, \old(argv)={1073741825:1073741826}, a=0, argc=3, b=0, checkPool={4:0}, i=0, iCheck=0, iSet=1073741824, setPool={5:0}] [L1251] COND TRUE i < iSet - UnprovableResult [Line: 11]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1245]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds 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. - 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. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1258]: 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: 1252]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 63 locations, 15 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: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 287 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 15 mSDtfsCounter, 287 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 73 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 16:09:55,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/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_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/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 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:09:58,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:09:59,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-13 16:09:59,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:09:59,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:09:59,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:09:59,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:09:59,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:09:59,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:09:59,074 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:09:59,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:09:59,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:09:59,075 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:09:59,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:09:59,075 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:09:59,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:09:59,075 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:09:59,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:09:59,076 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:09:59,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:09:59,078 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 16:09:59,078 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 16:09:59,078 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 16:09:59,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:09:59,078 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:09:59,079 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:09:59,079 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:09:59,079 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:09:59,079 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:09:59,079 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:09:59,079 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:09:59,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:09:59,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:09:59,080 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:09:59,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:09:59,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:09:59,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:09:59,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:09:59,080 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 16:09:59,081 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:09:59,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:09:59,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:09:59,082 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:09:59,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:09:59,082 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_a51fb874-51cd-42ae-b35c-da09064f85ff/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 -> 41850eb6fd386c6f0f40e76b0dfccb7c973d8ab2a3ee3a82b04526b3663119f9 [2024-11-13 16:09:59,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:09:59,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:09:59,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:09:59,570 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:09:59,570 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:09:59,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread/reorder_5-2.i Unable to find full path for "g++" [2024-11-13 16:10:02,258 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:10:02,797 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:10:02,800 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/sv-benchmarks/c/pthread/reorder_5-2.i [2024-11-13 16:10:02,836 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/data/97b7cdb5f/af38b898fdb34441a1b26d67c5cf31fa/FLAG44400a2b8 [2024-11-13 16:10:02,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/data/97b7cdb5f/af38b898fdb34441a1b26d67c5cf31fa [2024-11-13 16:10:02,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:10:02,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:10:02,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:02,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:10:02,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:10:02,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:02" (1/1) ... [2024-11-13 16:10:02,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@530b8988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:02, skipping insertion in model container [2024-11-13 16:10:02,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:10:02" (1/1) ... [2024-11-13 16:10:02,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:10:04,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:04,152 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:10:04,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:10:04,411 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:10:04,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04 WrapperNode [2024-11-13 16:10:04,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:10:04,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:04,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:10:04,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:10:04,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,496 INFO L138 Inliner]: procedures = 374, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132 [2024-11-13 16:10:04,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:10:04,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:10:04,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:10:04,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:10:04,506 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,511 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,528 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-13 16:10:04,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:10:04,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:10:04,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:10:04,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:10:04,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (1/1) ... [2024-11-13 16:10:04,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:10:04,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:04,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:10:04,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:10:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 16:10:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 16:10:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 16:10:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 16:10:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:10:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:10:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 16:10:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 16:10:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 16:10:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 16:10:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 16:10:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 16:10:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 16:10:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-13 16:10:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-13 16:10:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:10:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-13 16:10:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-13 16:10:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:10:04,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:10:04,680 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 16:10:04,917 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:10:04,919 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:10:05,369 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:10:05,369 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:10:05,677 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:10:05,677 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 16:10:05,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:05 BoogieIcfgContainer [2024-11-13 16:10:05,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:10:05,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:10:05,683 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:10:05,691 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:10:05,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:10:02" (1/3) ... [2024-11-13 16:10:05,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567b3887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:10:05, skipping insertion in model container [2024-11-13 16:10:05,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:10:04" (2/3) ... [2024-11-13 16:10:05,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567b3887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:10:05, skipping insertion in model container [2024-11-13 16:10:05,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:05" (3/3) ... [2024-11-13 16:10:05,694 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5-2.i [2024-11-13 16:10:05,713 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:10:05,715 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG reorder_5-2.i that has 3 procedures, 48 locations, 1 initial locations, 4 loop locations, and 12 error locations. [2024-11-13 16:10:05,715 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:10:05,807 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-13 16:10:05,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 56 transitions, 132 flow [2024-11-13 16:10:05,970 INFO L124 PetriNetUnfolderBase]: 12/131 cut-off events. [2024-11-13 16:10:05,974 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-13 16:10:05,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 131 events. 12/131 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 636 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 69. Up to 7 conditions per place. [2024-11-13 16:10:05,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 56 transitions, 132 flow [2024-11-13 16:10:05,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 56 transitions, 132 flow [2024-11-13 16:10:06,007 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:10:06,024 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;@5e2d5a03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:10:06,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-13 16:10:06,031 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:10:06,031 INFO L124 PetriNetUnfolderBase]: 1/6 cut-off events. [2024-11-13 16:10:06,031 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:10:06,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:10:06,032 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-13 16:10:06,033 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-13 16:10:06,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash 12077513, now seen corresponding path program 1 times [2024-11-13 16:10:06,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:10:06,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302560787] [2024-11-13 16:10:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:06,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:10:06,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:06,057 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:10:06,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:10:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:06,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 16:10:06,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:10:06,255 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 16:10:06,255 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:10:06,256 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:10:06,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302560787] [2024-11-13 16:10:06,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302560787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:06,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:06,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 16:10:06,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537543677] [2024-11-13 16:10:06,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:06,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:10:06,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:10:06,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:10:06,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 16:10:06,307 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 56 [2024-11-13 16:10:06,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 132 flow. Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 16:10:06,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:10:06,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 56 [2024-11-13 16:10:06,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:10:06,498 INFO L124 PetriNetUnfolderBase]: 86/374 cut-off events. [2024-11-13 16:10:06,499 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-11-13 16:10:06,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 374 events. 86/374 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2553 event pairs, 71 based on Foata normal form. 24/272 useless extension candidates. Maximal degree in co-relation 373. Up to 190 conditions per place. [2024-11-13 16:10:06,503 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 24 selfloop transitions, 0 changer transitions 0/52 dead transitions. [2024-11-13 16:10:06,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 52 transitions, 172 flow [2024-11-13 16:10:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:10:06,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-13 16:10:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 84 transitions. [2024-11-13 16:10:06,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-13 16:10:06,520 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 132 flow. Second operand 2 states and 84 transitions. [2024-11-13 16:10:06,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 52 transitions, 172 flow [2024-11-13 16:10:06,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:10:06,529 INFO L231 Difference]: Finished difference. Result has 53 places, 52 transitions, 124 flow [2024-11-13 16:10:06,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=52} [2024-11-13 16:10:06,536 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2024-11-13 16:10:06,536 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 52 transitions, 124 flow [2024-11-13 16:10:06,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 16:10:06,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:10:06,537 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:10:06,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:10:06,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:10:06,738 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-13 16:10:06,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:06,739 INFO L85 PathProgramCache]: Analyzing trace with hash 374473012, now seen corresponding path program 1 times [2024-11-13 16:10:06,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:10:06,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174638870] [2024-11-13 16:10:06,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:06,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:10:06,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:06,743 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:10:06,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:10:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:06,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:10:06,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:10:06,959 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2024-11-13 16:10:06,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2024-11-13 16:10:06,989 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 16:10:06,989 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:10:06,989 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:10:06,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174638870] [2024-11-13 16:10:06,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174638870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:06,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:06,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:10:06,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000299472] [2024-11-13 16:10:06,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:06,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:10:06,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:10:06,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:10:06,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:10:07,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 56 [2024-11-13 16:10:07,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 16:10:07,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:10:07,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 56 [2024-11-13 16:10:07,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:10:07,283 INFO L124 PetriNetUnfolderBase]: 97/370 cut-off events. [2024-11-13 16:10:07,284 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-13 16:10:07,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 370 events. 97/370 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2492 event pairs, 62 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 607. Up to 168 conditions per place. [2024-11-13 16:10:07,289 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 27 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2024-11-13 16:10:07,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 184 flow [2024-11-13 16:10:07,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:10:07,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:10:07,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-13 16:10:07,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6130952380952381 [2024-11-13 16:10:07,292 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 124 flow. Second operand 3 states and 103 transitions. [2024-11-13 16:10:07,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 184 flow [2024-11-13 16:10:07,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 53 transitions, 184 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:10:07,299 INFO L231 Difference]: Finished difference. Result has 53 places, 50 transitions, 124 flow [2024-11-13 16:10:07,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=53, PETRI_TRANSITIONS=50} [2024-11-13 16:10:07,301 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, -1 predicate places. [2024-11-13 16:10:07,301 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 50 transitions, 124 flow [2024-11-13 16:10:07,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 16:10:07,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:10:07,305 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:10:07,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 16:10:07,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:10:07,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-13 16:10:07,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:07,509 INFO L85 PathProgramCache]: Analyzing trace with hash 374473013, now seen corresponding path program 1 times [2024-11-13 16:10:07,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:10:07,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234303819] [2024-11-13 16:10:07,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:07,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:10:07,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:07,513 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:10:07,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:10:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:10:07,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:10:07,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:10:07,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 16:10:07,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-11-13 16:10:07,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-11-13 16:10:07,803 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 16:10:07,804 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:10:07,804 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 16:10:07,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234303819] [2024-11-13 16:10:07,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234303819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:10:07,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:10:07,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:10:07,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554448358] [2024-11-13 16:10:07,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:10:07,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:10:07,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 16:10:07,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:10:07,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:10:07,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 56 [2024-11-13 16:10:07,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 50 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 16:10:07,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:10:07,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 56 [2024-11-13 16:10:07,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:10:08,298 INFO L124 PetriNetUnfolderBase]: 184/694 cut-off events. [2024-11-13 16:10:08,298 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-13 16:10:08,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 694 events. 184/694 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5534 event pairs, 159 based on Foata normal form. 1/523 useless extension candidates. Maximal degree in co-relation 1169. Up to 215 conditions per place. [2024-11-13 16:10:08,305 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 47 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2024-11-13 16:10:08,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 298 flow [2024-11-13 16:10:08,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:10:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 16:10:08,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 157 transitions. [2024-11-13 16:10:08,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7008928571428571 [2024-11-13 16:10:08,308 INFO L175 Difference]: Start difference. First operand has 53 places, 50 transitions, 124 flow. Second operand 4 states and 157 transitions. [2024-11-13 16:10:08,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 298 flow [2024-11-13 16:10:08,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 75 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:10:08,313 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 146 flow [2024-11-13 16:10:08,313 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=146, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2024-11-13 16:10:08,314 INFO L277 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2024-11-13 16:10:08,314 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 146 flow [2024-11-13 16:10:08,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 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 16:10:08,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:10:08,315 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:10:08,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 16:10:08,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:10:08,519 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (and 12 more)] === [2024-11-13 16:10:08,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:10:08,520 INFO L85 PathProgramCache]: Analyzing trace with hash -182191417, now seen corresponding path program 1 times [2024-11-13 16:10:08,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 16:10:08,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406025959] [2024-11-13 16:10:08,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:10:08,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:10:08,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:10:08,525 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:10:08,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:10:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:08,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:10:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:10:08,707 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-13 16:10:08,708 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:10:08,712 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 15 remaining) [2024-11-13 16:10:08,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (13 of 15 remaining) [2024-11-13 16:10:08,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (12 of 15 remaining) [2024-11-13 16:10:08,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONARRAY_INDEX (11 of 15 remaining) [2024-11-13 16:10:08,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2024-11-13 16:10:08,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2024-11-13 16:10:08,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2024-11-13 16:10:08,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2024-11-13 16:10:08,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2024-11-13 16:10:08,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2024-11-13 16:10:08,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2024-11-13 16:10:08,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (3 of 15 remaining) [2024-11-13 16:10:08,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 15 remaining) [2024-11-13 16:10:08,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 15 remaining) [2024-11-13 16:10:08,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 15 remaining) [2024-11-13 16:10:08,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 16:10:08,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:10:08,922 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 16:10:08,945 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 16:10:08,945 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:10:08,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:10:08 BasicIcfg [2024-11-13 16:10:08,951 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:10:08,952 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:10:08,952 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:10:08,952 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:10:08,953 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:10:05" (3/4) ... [2024-11-13 16:10:08,955 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:10:08,956 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:10:08,958 INFO L158 Benchmark]: Toolchain (without parser) took 6081.99ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 44.7MB in the end (delta: 48.0MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2024-11-13 16:10:08,958 INFO L158 Benchmark]: CDTParser took 3.51ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:08,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1535.08ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 52.9MB in the end (delta: 39.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 16:10:08,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.50ms. Allocated memory is still 117.4MB. Free memory was 52.9MB in the beginning and 50.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:08,959 INFO L158 Benchmark]: Boogie Preprocessor took 87.68ms. Allocated memory is still 117.4MB. Free memory was 50.5MB in the beginning and 48.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:08,959 INFO L158 Benchmark]: RCFGBuilder took 1092.16ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 62.6MB in the end (delta: -14.5MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2024-11-13 16:10:08,960 INFO L158 Benchmark]: TraceAbstraction took 3268.79ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 44.7MB in the end (delta: 17.2MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2024-11-13 16:10:08,960 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 117.4MB. Free memory was 44.7MB in the beginning and 44.7MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:10:08,962 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.51ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1535.08ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 52.9MB in the end (delta: 39.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.50ms. Allocated memory is still 117.4MB. Free memory was 52.9MB in the beginning and 50.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 87.68ms. Allocated memory is still 117.4MB. Free memory was 50.5MB in the beginning and 48.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1092.16ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 62.6MB in the end (delta: -14.5MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3268.79ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 44.7MB in the end (delta: 17.2MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 117.4MB. Free memory was 44.7MB in the beginning and 44.7MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: overapproximation of sscanf at line 1245, overapproximation of sscanf at line 1246. Possible FailurePath: [L1229] static int iSet = 4; [L1230] static int iCheck = 1; [L1231] static int a = 0; [L1232] static int b = 0; [L1239] int i, err; VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1240] COND TRUE argc != 1 VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1241] COND FALSE !(argc != 3) VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, iCheck=1, iSet=4] [L1245] argv[1] [L1246] argv[2] [L1249] pthread_t setPool[iSet]; [L1250] pthread_t checkPool[iCheck]; [L1251] i = 0 VAL [\old(argc)=3, \old(argv)={0:0}, a=0, argc=3, b=0, checkPool={5:0}, i=0, iCheck=0, iSet=1073741824, setPool={7:0}] [L1251] COND TRUE i < iSet - UnprovableResult [Line: 11]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1245]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds 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. - 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. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1258]: 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: 1252]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 63 locations, 15 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: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 11 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=3, InterpolantAutomatonStates: 9, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 3 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 16:10:08,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a51fb874-51cd-42ae-b35c-da09064f85ff/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 Result: UNKNOWN: Overapproximated counterexample