./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC --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 a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:48:55,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:48:55,151 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-23 23:48:55,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:48:55,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:48:55,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:48:55,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:48:55,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:48:55,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:48:55,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:48:55,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:48:55,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:48:55,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:48:55,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:48:55,207 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:48:55,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:48:55,207 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:48:55,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:48:55,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:48:55,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:48:55,208 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-23 23:48:55,208 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-23 23:48:55,208 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-23 23:48:55,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:48:55,209 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:48:55,209 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:48:55,209 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:48:55,209 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:48:55,209 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:48:55,210 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:48:55,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:48:55,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:48:55,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:48:55,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:48:55,210 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:48:55,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:48:55,211 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:48:55,211 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:48:55,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:48:55,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:48:55,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:48:55,212 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:48:55,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:48:55,212 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:48:55,212 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:48:55,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:48:55,213 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:48:55,213 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_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC 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 -> a233f90faab2ceb8ddfb042463870c03c0794d3cd45b2ba20de731314559cb95 [2024-11-23 23:48:55,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:48:55,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:48:55,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:48:55,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:48:55,575 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:48:55,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-11-23 23:48:59,239 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/data/0a9f36584/8d3d3902ccff43a4a121c77cc787347f/FLAG1c981b2ba [2024-11-23 23:48:59,615 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:48:59,616 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/sv-benchmarks/c/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-11-23 23:48:59,640 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/data/0a9f36584/8d3d3902ccff43a4a121c77cc787347f/FLAG1c981b2ba [2024-11-23 23:48:59,669 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/data/0a9f36584/8d3d3902ccff43a4a121c77cc787347f [2024-11-23 23:48:59,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:48:59,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:48:59,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:48:59,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:48:59,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:48:59,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:48:59" (1/1) ... [2024-11-23 23:48:59,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c84459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:48:59, skipping insertion in model container [2024-11-23 23:48:59,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:48:59" (1/1) ... [2024-11-23 23:48:59,757 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:49:00,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:49:00,309 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:49:00,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:49:00,435 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:49:00,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00 WrapperNode [2024-11-23 23:49:00,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:49:00,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:49:00,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:49:00,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:49:00,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,498 INFO L138 Inliner]: procedures = 162, calls = 44, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 80 [2024-11-23 23:49:00,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:49:00,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:49:00,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:49:00,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:49:00,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,513 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,529 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-23 23:49:00,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,541 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:49:00,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:49:00,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:49:00,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:49:00,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (1/1) ... [2024-11-23 23:49:00,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:49:00,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:49:00,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:49:00,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:49:00,629 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 23:49:00,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:49:00,629 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-23 23:49:00,629 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-23 23:49:00,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:49:00,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:49:00,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:49:00,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:49:00,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 23:49:00,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:49:00,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:49:00,633 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 23:49:00,788 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:49:00,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:49:01,088 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 23:49:01,088 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:49:01,369 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:49:01,369 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 23:49:01,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:49:01 BoogieIcfgContainer [2024-11-23 23:49:01,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:49:01,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:49:01,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:49:01,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:49:01,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:48:59" (1/3) ... [2024-11-23 23:49:01,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c0807f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:49:01, skipping insertion in model container [2024-11-23 23:49:01,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:49:00" (2/3) ... [2024-11-23 23:49:01,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c0807f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:49:01, skipping insertion in model container [2024-11-23 23:49:01,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:49:01" (3/3) ... [2024-11-23 23:49:01,383 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-11-23 23:49:01,407 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:49:01,409 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i that has 2 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-23 23:49:01,409 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 23:49:01,470 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-23 23:49:01,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 57 transitions, 121 flow [2024-11-23 23:49:01,585 INFO L124 PetriNetUnfolderBase]: 4/56 cut-off events. [2024-11-23 23:49:01,592 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 23:49:01,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 56 events. 4/56 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-11-23 23:49:01,603 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 57 transitions, 121 flow [2024-11-23 23:49:01,610 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 55 transitions, 116 flow [2024-11-23 23:49:01,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:49:01,638 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;@498124e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:49:01,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-23 23:49:01,662 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 23:49:01,663 INFO L124 PetriNetUnfolderBase]: 2/23 cut-off events. [2024-11-23 23:49:01,663 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 23:49:01,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:49:01,666 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:49:01,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-23 23:49:01,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:01,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1004046843, now seen corresponding path program 1 times [2024-11-23 23:49:01,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:01,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778656605] [2024-11-23 23:49:01,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:49:01,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:49:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:49:02,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:49:02,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778656605] [2024-11-23 23:49:02,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778656605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:49:02,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:49:02,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:49:02,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070298401] [2024-11-23 23:49:02,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:49:02,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:49:02,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:49:02,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:49:02,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:49:02,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 57 [2024-11-23 23:49:02,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 55 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-23 23:49:02,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:49:02,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 57 [2024-11-23 23:49:02,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:49:02,628 INFO L124 PetriNetUnfolderBase]: 193/514 cut-off events. [2024-11-23 23:49:02,629 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-23 23:49:02,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 514 events. 193/514 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2513 event pairs, 96 based on Foata normal form. 32/526 useless extension candidates. Maximal degree in co-relation 925. Up to 228 conditions per place. [2024-11-23 23:49:02,634 INFO L140 encePairwiseOnDemand]: 42/57 looper letters, 48 selfloop transitions, 15 changer transitions 0/81 dead transitions. [2024-11-23 23:49:02,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 81 transitions, 294 flow [2024-11-23 23:49:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:49:02,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 23:49:02,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-11-23 23:49:02,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2024-11-23 23:49:02,651 INFO L175 Difference]: Start difference. First operand has 55 places, 55 transitions, 116 flow. Second operand 5 states and 170 transitions. [2024-11-23 23:49:02,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 81 transitions, 294 flow [2024-11-23 23:49:02,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 81 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 23:49:02,665 INFO L231 Difference]: Finished difference. Result has 59 places, 59 transitions, 200 flow [2024-11-23 23:49:02,669 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=200, PETRI_PLACES=59, PETRI_TRANSITIONS=59} [2024-11-23 23:49:02,672 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 4 predicate places. [2024-11-23 23:49:02,674 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 200 flow [2024-11-23 23:49:02,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-23 23:49:02,675 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:49:02,675 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:49:02,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:49:02,676 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-23 23:49:02,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:02,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1549642564, now seen corresponding path program 1 times [2024-11-23 23:49:02,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:02,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328809238] [2024-11-23 23:49:02,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:49:02,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:49:02,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:49:02,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:49:02,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328809238] [2024-11-23 23:49:02,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328809238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:49:02,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:49:02,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:49:02,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77048477] [2024-11-23 23:49:02,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:49:02,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:49:02,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:49:02,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:49:02,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:49:02,955 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 57 [2024-11-23 23:49:02,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-11-23 23:49:02,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:49:02,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 57 [2024-11-23 23:49:02,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:49:03,258 INFO L124 PetriNetUnfolderBase]: 148/479 cut-off events. [2024-11-23 23:49:03,260 INFO L125 PetriNetUnfolderBase]: For 163/173 co-relation queries the response was YES. [2024-11-23 23:49:03,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 479 events. 148/479 cut-off events. For 163/173 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2470 event pairs, 47 based on Foata normal form. 24/496 useless extension candidates. Maximal degree in co-relation 947. Up to 217 conditions per place. [2024-11-23 23:49:03,267 INFO L140 encePairwiseOnDemand]: 45/57 looper letters, 46 selfloop transitions, 12 changer transitions 0/81 dead transitions. [2024-11-23 23:49:03,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 81 transitions, 390 flow [2024-11-23 23:49:03,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:49:03,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 23:49:03,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 117 transitions. [2024-11-23 23:49:03,274 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2024-11-23 23:49:03,275 INFO L175 Difference]: Start difference. First operand has 59 places, 59 transitions, 200 flow. Second operand 3 states and 117 transitions. [2024-11-23 23:49:03,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 81 transitions, 390 flow [2024-11-23 23:49:03,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 81 transitions, 386 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-23 23:49:03,286 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 258 flow [2024-11-23 23:49:03,287 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2024-11-23 23:49:03,288 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 7 predicate places. [2024-11-23 23:49:03,288 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 258 flow [2024-11-23 23:49:03,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-11-23 23:49:03,289 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:49:03,289 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:49:03,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:49:03,290 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-23 23:49:03,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:03,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1003999479, now seen corresponding path program 1 times [2024-11-23 23:49:03,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:03,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728088989] [2024-11-23 23:49:03,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:49:03,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:49:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:49:03,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:49:03,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728088989] [2024-11-23 23:49:03,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728088989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:49:03,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:49:03,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:49:03,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277168644] [2024-11-23 23:49:03,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:49:03,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:49:03,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:49:03,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:49:03,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:49:03,653 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 57 [2024-11-23 23:49:03,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 258 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-11-23 23:49:03,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:49:03,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 57 [2024-11-23 23:49:03,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:49:03,946 INFO L124 PetriNetUnfolderBase]: 142/479 cut-off events. [2024-11-23 23:49:03,946 INFO L125 PetriNetUnfolderBase]: For 343/353 co-relation queries the response was YES. [2024-11-23 23:49:03,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1311 conditions, 479 events. 142/479 cut-off events. For 343/353 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2475 event pairs, 54 based on Foata normal form. 6/481 useless extension candidates. Maximal degree in co-relation 1167. Up to 193 conditions per place. [2024-11-23 23:49:03,953 INFO L140 encePairwiseOnDemand]: 50/57 looper letters, 56 selfloop transitions, 11 changer transitions 0/87 dead transitions. [2024-11-23 23:49:03,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 87 transitions, 490 flow [2024-11-23 23:49:03,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:49:03,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 23:49:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-11-23 23:49:03,956 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6008771929824561 [2024-11-23 23:49:03,956 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 258 flow. Second operand 4 states and 137 transitions. [2024-11-23 23:49:03,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 87 transitions, 490 flow [2024-11-23 23:49:03,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 87 transitions, 468 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-23 23:49:03,968 INFO L231 Difference]: Finished difference. Result has 62 places, 65 transitions, 282 flow [2024-11-23 23:49:03,968 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=62, PETRI_TRANSITIONS=65} [2024-11-23 23:49:03,969 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 7 predicate places. [2024-11-23 23:49:03,969 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 65 transitions, 282 flow [2024-11-23 23:49:03,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-11-23 23:49:03,970 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:49:03,970 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:49:03,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:49:03,970 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-23 23:49:03,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:03,972 INFO L85 PathProgramCache]: Analyzing trace with hash -227720197, now seen corresponding path program 1 times [2024-11-23 23:49:03,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:03,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691570452] [2024-11-23 23:49:03,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:49:03,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:49:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:49:04,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:49:04,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691570452] [2024-11-23 23:49:04,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691570452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:49:04,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:49:04,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:49:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208647719] [2024-11-23 23:49:04,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:49:04,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:49:04,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:49:04,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:49:04,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:49:04,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 57 [2024-11-23 23:49:04,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 65 transitions, 282 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-11-23 23:49:04,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:49:04,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 57 [2024-11-23 23:49:04,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:49:04,527 INFO L124 PetriNetUnfolderBase]: 95/341 cut-off events. [2024-11-23 23:49:04,528 INFO L125 PetriNetUnfolderBase]: For 280/283 co-relation queries the response was YES. [2024-11-23 23:49:04,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 975 conditions, 341 events. 95/341 cut-off events. For 280/283 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1558 event pairs, 35 based on Foata normal form. 1/334 useless extension candidates. Maximal degree in co-relation 950. Up to 143 conditions per place. [2024-11-23 23:49:04,532 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 43 selfloop transitions, 15 changer transitions 0/77 dead transitions. [2024-11-23 23:49:04,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 77 transitions, 451 flow [2024-11-23 23:49:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:49:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 23:49:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2024-11-23 23:49:04,536 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-23 23:49:04,537 INFO L175 Difference]: Start difference. First operand has 62 places, 65 transitions, 282 flow. Second operand 4 states and 133 transitions. [2024-11-23 23:49:04,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 77 transitions, 451 flow [2024-11-23 23:49:04,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 77 transitions, 444 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-23 23:49:04,543 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 317 flow [2024-11-23 23:49:04,544 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=317, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2024-11-23 23:49:04,545 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 9 predicate places. [2024-11-23 23:49:04,545 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 317 flow [2024-11-23 23:49:04,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-11-23 23:49:04,545 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:49:04,545 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:49:04,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:49:04,546 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-23 23:49:04,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:04,546 INFO L85 PathProgramCache]: Analyzing trace with hash 811813818, now seen corresponding path program 1 times [2024-11-23 23:49:04,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:04,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175369312] [2024-11-23 23:49:04,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:49:04,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:49:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:49:04,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:49:04,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175369312] [2024-11-23 23:49:04,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175369312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:49:04,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:49:04,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:49:04,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90449333] [2024-11-23 23:49:04,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:49:04,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:49:04,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:49:04,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:49:04,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:49:04,912 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 57 [2024-11-23 23:49:04,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 317 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-23 23:49:04,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:49:04,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 57 [2024-11-23 23:49:04,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:49:05,087 INFO L124 PetriNetUnfolderBase]: 52/226 cut-off events. [2024-11-23 23:49:05,088 INFO L125 PetriNetUnfolderBase]: For 352/360 co-relation queries the response was YES. [2024-11-23 23:49:05,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 226 events. 52/226 cut-off events. For 352/360 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 774 event pairs, 17 based on Foata normal form. 15/240 useless extension candidates. Maximal degree in co-relation 243. Up to 93 conditions per place. [2024-11-23 23:49:05,091 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 35 selfloop transitions, 9 changer transitions 0/60 dead transitions. [2024-11-23 23:49:05,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 60 transitions, 388 flow [2024-11-23 23:49:05,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:49:05,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 23:49:05,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-11-23 23:49:05,093 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5307017543859649 [2024-11-23 23:49:05,093 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 317 flow. Second operand 4 states and 121 transitions. [2024-11-23 23:49:05,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 60 transitions, 388 flow [2024-11-23 23:49:05,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 60 transitions, 345 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-11-23 23:49:05,097 INFO L231 Difference]: Finished difference. Result has 56 places, 51 transitions, 234 flow [2024-11-23 23:49:05,097 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=56, PETRI_TRANSITIONS=51} [2024-11-23 23:49:05,098 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 1 predicate places. [2024-11-23 23:49:05,098 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 51 transitions, 234 flow [2024-11-23 23:49:05,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-23 23:49:05,099 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-23 23:49:05,099 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:49:05,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:49:05,099 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 1 more)] === [2024-11-23 23:49:05,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:49:05,100 INFO L85 PathProgramCache]: Analyzing trace with hash -14159416, now seen corresponding path program 1 times [2024-11-23 23:49:05,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:49:05,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711452617] [2024-11-23 23:49:05,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:49:05,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:49:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:49:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:49:05,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:49:05,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711452617] [2024-11-23 23:49:05,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711452617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:49:05,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:49:05,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 23:49:05,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635334133] [2024-11-23 23:49:05,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:49:05,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:49:05,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:49:05,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:49:05,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:49:05,191 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 57 [2024-11-23 23:49:05,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 51 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:49:05,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 23:49:05,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 57 [2024-11-23 23:49:05,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 23:49:05,282 INFO L124 PetriNetUnfolderBase]: 52/217 cut-off events. [2024-11-23 23:49:05,282 INFO L125 PetriNetUnfolderBase]: For 322/329 co-relation queries the response was YES. [2024-11-23 23:49:05,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 217 events. 52/217 cut-off events. For 322/329 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 734 event pairs, 41 based on Foata normal form. 2/216 useless extension candidates. Maximal degree in co-relation 215. Up to 166 conditions per place. [2024-11-23 23:49:05,283 INFO L140 encePairwiseOnDemand]: 55/57 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2024-11-23 23:49:05,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 50 transitions, 302 flow [2024-11-23 23:49:05,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:49:05,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 23:49:05,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-11-23 23:49:05,285 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5146198830409356 [2024-11-23 23:49:05,285 INFO L175 Difference]: Start difference. First operand has 56 places, 51 transitions, 234 flow. Second operand 3 states and 88 transitions. [2024-11-23 23:49:05,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 50 transitions, 302 flow [2024-11-23 23:49:05,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 293 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 23:49:05,288 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-11-23 23:49:05,288 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-11-23 23:49:05,290 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 0 predicate places. [2024-11-23 23:49:05,290 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-11-23 23:49:05,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:49:05,297 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-23 23:49:05,298 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-23 23:49:05,298 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (1 of 4 remaining) [2024-11-23 23:49:05,298 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-23 23:49:05,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:49:05,299 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-23 23:49:05,304 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 23:49:05,304 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:49:05,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:49:05 BasicIcfg [2024-11-23 23:49:05,315 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:49:05,316 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:49:05,316 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:49:05,316 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:49:05,317 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:49:01" (3/4) ... [2024-11-23 23:49:05,320 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:49:05,324 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-23 23:49:05,331 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-23 23:49:05,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-23 23:49:05,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-23 23:49:05,332 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 23:49:05,436 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:49:05,436 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:49:05,436 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:49:05,437 INFO L158 Benchmark]: Toolchain (without parser) took 5763.29ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 35.9MB in the end (delta: 55.3MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2024-11-23 23:49:05,438 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:49:05,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.59ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 71.2MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 23:49:05,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.21ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 69.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:49:05,441 INFO L158 Benchmark]: Boogie Preprocessor took 50.74ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 67.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:49:05,442 INFO L158 Benchmark]: RCFGBuilder took 819.52ms. Allocated memory is still 117.4MB. Free memory was 67.8MB in the beginning and 88.8MB in the end (delta: -21.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-23 23:49:05,442 INFO L158 Benchmark]: TraceAbstraction took 3942.99ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 40.1MB in the end (delta: 48.2MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2024-11-23 23:49:05,443 INFO L158 Benchmark]: Witness Printer took 120.31ms. Allocated memory is still 117.4MB. Free memory was 40.1MB in the beginning and 35.9MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:49:05,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.59ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 71.2MB in the end (delta: 20.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.21ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 69.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.74ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 67.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 819.52ms. Allocated memory is still 117.4MB. Free memory was 67.8MB in the beginning and 88.8MB in the end (delta: -21.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3942.99ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 40.1MB in the end (delta: 48.2MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. * Witness Printer took 120.31ms. Allocated memory is still 117.4MB. Free memory was 40.1MB in the beginning and 35.9MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 698]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 73 locations, 4 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: 3.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 143 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 422 IncrementalHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 2 mSDtfsCounter, 422 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=317occurred in iteration=4, InterpolantAutomatonStates: 23, 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, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 648 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 23:49:05,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a0bbbbd-e1bf-4c9c-b8b9-c412b6adba0e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE