./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.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_fad36d40-47bc-42d7-9c02-63f2c48903ea/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/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_fad36d40-47bc-42d7-9c02-63f2c48903ea/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/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_fad36d40-47bc-42d7-9c02-63f2c48903ea/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 8389c73a3873efed3be614e3a02a2457c4db9f1b1dfabf64c87229b49920fe65 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:16:17,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:16:17,179 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 15:16:17,190 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:16:17,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:16:17,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:16:17,239 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:16:17,240 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:16:17,240 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:16:17,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:16:17,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:16:17,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:16:17,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:16:17,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:16:17,242 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:16:17,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:16:17,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:16:17,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:16:17,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:16:17,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:16:17,243 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:16:17,243 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:16:17,243 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 15:16:17,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:16:17,244 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:16:17,244 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:16:17,244 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:16:17,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:16:17,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:16:17,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:16:17,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:16:17,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:16:17,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:16:17,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:16:17,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:16:17,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:16:17,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:16:17,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:16:17,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:16:17,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:16:17,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:16:17,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:16:17,246 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_fad36d40-47bc-42d7-9c02-63f2c48903ea/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 -> 8389c73a3873efed3be614e3a02a2457c4db9f1b1dfabf64c87229b49920fe65 [2024-11-13 15:16:17,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:16:17,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:16:17,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:16:17,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:16:17,681 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:16:17,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i Unable to find full path for "g++" [2024-11-13 15:16:19,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:16:20,251 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:16:20,254 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2024-11-13 15:16:20,276 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/bin/uautomizer-verify-qhAvR1uOyd/data/eadf46d5c/41b71be2f5d34ac0b80046f711f57241/FLAGf5c9a9b04 [2024-11-13 15:16:20,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/bin/uautomizer-verify-qhAvR1uOyd/data/eadf46d5c/41b71be2f5d34ac0b80046f711f57241 [2024-11-13 15:16:20,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:16:20,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:16:20,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:16:20,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:16:20,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:16:20,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:20,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d445cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20, skipping insertion in model container [2024-11-13 15:16:20,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:20,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:16:20,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:16:20,792 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:16:20,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:16:20,902 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:16:20,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20 WrapperNode [2024-11-13 15:16:20,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:16:20,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:16:20,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:16:20,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:16:20,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:20,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:20,956 INFO L138 Inliner]: procedures = 176, calls = 65, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 477 [2024-11-13 15:16:20,960 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:16:20,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:16:20,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:16:20,961 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:16:20,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:20,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:20,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:20,994 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-13 15:16:20,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:20,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:21,006 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:21,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:21,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:21,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:21,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:16:21,021 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:16:21,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:16:21,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:16:21,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (1/1) ... [2024-11-13 15:16:21,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:16:21,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:21,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:16:21,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fad36d40-47bc-42d7-9c02-63f2c48903ea/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:16:21,084 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-13 15:16:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-13 15:16:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:16:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:16:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-13 15:16:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-13 15:16:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:16:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:16:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:16:21,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:16:21,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:16:21,087 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 15:16:21,247 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:16:21,250 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:16:22,081 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:16:22,082 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:16:22,995 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:16:22,996 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 15:16:22,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:16:22 BoogieIcfgContainer [2024-11-13 15:16:22,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:16:23,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:16:23,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:16:23,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:16:23,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:16:20" (1/3) ... [2024-11-13 15:16:23,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b0ee2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:16:23, skipping insertion in model container [2024-11-13 15:16:23,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:20" (2/3) ... [2024-11-13 15:16:23,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b0ee2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:16:23, skipping insertion in model container [2024-11-13 15:16:23,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:16:22" (3/3) ... [2024-11-13 15:16:23,015 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced-pthread.i [2024-11-13 15:16:23,034 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:16:23,035 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_NetBSD_sysmon_power_sliced-pthread.i that has 2 procedures, 153 locations, 1 initial locations, 4 loop locations, and 12 error locations. [2024-11-13 15:16:23,036 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:16:23,197 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 15:16:23,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 201 transitions, 406 flow [2024-11-13 15:16:23,397 INFO L124 PetriNetUnfolderBase]: 48/205 cut-off events. [2024-11-13 15:16:23,399 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:16:23,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 205 events. 48/205 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 946 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 198. Up to 10 conditions per place. [2024-11-13 15:16:23,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 201 transitions, 406 flow [2024-11-13 15:16:23,411 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 201 transitions, 406 flow [2024-11-13 15:16:23,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:16:23,436 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;@430e5bb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:16:23,436 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-13 15:16:23,469 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:16:23,469 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-13 15:16:23,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:16:23,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:16:23,470 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-13 15:16:23,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 20 more)] === [2024-11-13 15:16:23,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:23,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1184338, now seen corresponding path program 1 times [2024-11-13 15:16:23,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:23,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641549394] [2024-11-13 15:16:23,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:23,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:24,160 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 15:16:24,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:24,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641549394] [2024-11-13 15:16:24,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641549394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:24,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:24,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:16:24,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429544532] [2024-11-13 15:16:24,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:24,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:16:24,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:24,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:16:24,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:16:24,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 201 [2024-11-13 15:16:24,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 201 transitions, 406 flow. Second operand has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 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 15:16:24,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:16:24,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 201 [2024-11-13 15:16:24,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:16:24,586 INFO L124 PetriNetUnfolderBase]: 132/346 cut-off events. [2024-11-13 15:16:24,586 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:16:24,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 346 events. 132/346 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1523 event pairs, 84 based on Foata normal form. 26/327 useless extension candidates. Maximal degree in co-relation 621. Up to 284 conditions per place. [2024-11-13 15:16:24,592 INFO L140 encePairwiseOnDemand]: 185/201 looper letters, 100 selfloop transitions, 0 changer transitions 0/132 dead transitions. [2024-11-13 15:16:24,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 132 transitions, 468 flow [2024-11-13 15:16:24,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:16:24,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-13 15:16:24,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 222 transitions. [2024-11-13 15:16:24,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5522388059701493 [2024-11-13 15:16:24,617 INFO L175 Difference]: Start difference. First operand has 156 places, 201 transitions, 406 flow. Second operand 2 states and 222 transitions. [2024-11-13 15:16:24,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 132 transitions, 468 flow [2024-11-13 15:16:24,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 132 transitions, 468 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:16:24,635 INFO L231 Difference]: Finished difference. Result has 112 places, 132 transitions, 268 flow [2024-11-13 15:16:24,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=268, PETRI_PLACES=112, PETRI_TRANSITIONS=132} [2024-11-13 15:16:24,644 INFO L277 CegarLoopForPetriNet]: 156 programPoint places, -44 predicate places. [2024-11-13 15:16:24,645 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 132 transitions, 268 flow [2024-11-13 15:16:24,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.0) internal successors, (108), 2 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 15:16:24,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:16:24,646 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2024-11-13 15:16:24,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:16:24,647 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 20 more)] === [2024-11-13 15:16:24,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:24,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1138480088, now seen corresponding path program 1 times [2024-11-13 15:16:24,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:24,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452441575] [2024-11-13 15:16:24,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:24,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:16:24,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:16:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:16:24,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:16:24,983 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:16:24,985 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-13 15:16:24,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (22 of 24 remaining) [2024-11-13 15:16:24,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (21 of 24 remaining) [2024-11-13 15:16:24,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (20 of 24 remaining) [2024-11-13 15:16:24,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (19 of 24 remaining) [2024-11-13 15:16:24,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (18 of 24 remaining) [2024-11-13 15:16:24,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (17 of 24 remaining) [2024-11-13 15:16:24,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (16 of 24 remaining) [2024-11-13 15:16:24,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (15 of 24 remaining) [2024-11-13 15:16:24,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (14 of 24 remaining) [2024-11-13 15:16:24,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (13 of 24 remaining) [2024-11-13 15:16:24,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (12 of 24 remaining) [2024-11-13 15:16:24,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 24 remaining) [2024-11-13 15:16:24,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (10 of 24 remaining) [2024-11-13 15:16:24,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (9 of 24 remaining) [2024-11-13 15:16:24,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (8 of 24 remaining) [2024-11-13 15:16:24,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (7 of 24 remaining) [2024-11-13 15:16:24,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (6 of 24 remaining) [2024-11-13 15:16:24,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (5 of 24 remaining) [2024-11-13 15:16:24,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (4 of 24 remaining) [2024-11-13 15:16:24,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (3 of 24 remaining) [2024-11-13 15:16:24,995 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (2 of 24 remaining) [2024-11-13 15:16:24,995 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (1 of 24 remaining) [2024-11-13 15:16:24,995 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (0 of 24 remaining) [2024-11-13 15:16:24,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:16:24,996 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 15:16:24,999 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:16:24,999 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 15:16:25,150 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 15:16:25,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 396 transitions, 802 flow [2024-11-13 15:16:25,339 INFO L124 PetriNetUnfolderBase]: 96/404 cut-off events. [2024-11-13 15:16:25,339 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 15:16:25,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 404 events. 96/404 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2416 event pairs, 0 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 392. Up to 10 conditions per place. [2024-11-13 15:16:25,352 INFO L82 GeneralOperation]: Start removeDead. Operand has 305 places, 396 transitions, 802 flow [2024-11-13 15:16:25,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 396 transitions, 802 flow [2024-11-13 15:16:25,367 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:16:25,370 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;@430e5bb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:16:25,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-13 15:16:25,378 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:16:25,379 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-13 15:16:25,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:16:25,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:16:25,379 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-13 15:16:25,379 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 31 more)] === [2024-11-13 15:16:25,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:25,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1577566, now seen corresponding path program 1 times [2024-11-13 15:16:25,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:25,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408992837] [2024-11-13 15:16:25,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:25,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:25,712 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 15:16:25,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:25,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408992837] [2024-11-13 15:16:25,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408992837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:25,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:25,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:16:25,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251756423] [2024-11-13 15:16:25,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:25,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:16:25,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:25,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:16:25,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:16:25,715 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 396 [2024-11-13 15:16:25,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 396 transitions, 802 flow. Second operand has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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 15:16:25,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:16:25,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 396 [2024-11-13 15:16:25,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:16:30,949 INFO L124 PetriNetUnfolderBase]: 28984/48470 cut-off events. [2024-11-13 15:16:30,950 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2024-11-13 15:16:31,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90479 conditions, 48470 events. 28984/48470 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 1456. Compared 397219 event pairs, 22142 based on Foata normal form. 4478/45468 useless extension candidates. Maximal degree in co-relation 88449. Up to 41746 conditions per place. [2024-11-13 15:16:31,450 INFO L140 encePairwiseOnDemand]: 365/396 looper letters, 198 selfloop transitions, 0 changer transitions 0/261 dead transitions. [2024-11-13 15:16:31,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 261 transitions, 928 flow [2024-11-13 15:16:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:16:31,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-13 15:16:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 437 transitions. [2024-11-13 15:16:31,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517676767676768 [2024-11-13 15:16:31,455 INFO L175 Difference]: Start difference. First operand has 305 places, 396 transitions, 802 flow. Second operand 2 states and 437 transitions. [2024-11-13 15:16:31,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 261 transitions, 928 flow [2024-11-13 15:16:31,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 261 transitions, 928 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:16:31,464 INFO L231 Difference]: Finished difference. Result has 219 places, 261 transitions, 532 flow [2024-11-13 15:16:31,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=532, PETRI_PLACES=219, PETRI_TRANSITIONS=261} [2024-11-13 15:16:31,465 INFO L277 CegarLoopForPetriNet]: 305 programPoint places, -86 predicate places. [2024-11-13 15:16:31,465 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 261 transitions, 532 flow [2024-11-13 15:16:31,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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 15:16:31,466 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:16:31,466 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1] [2024-11-13 15:16:31,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:16:31,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 31 more)] === [2024-11-13 15:16:31,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:31,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1431351109, now seen corresponding path program 1 times [2024-11-13 15:16:31,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:31,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629980496] [2024-11-13 15:16:31,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:31,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:16:31,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:16:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:16:31,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:16:31,640 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:16:31,641 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-13 15:16:31,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (33 of 35 remaining) [2024-11-13 15:16:31,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (32 of 35 remaining) [2024-11-13 15:16:31,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (31 of 35 remaining) [2024-11-13 15:16:31,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (30 of 35 remaining) [2024-11-13 15:16:31,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (29 of 35 remaining) [2024-11-13 15:16:31,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (28 of 35 remaining) [2024-11-13 15:16:31,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (27 of 35 remaining) [2024-11-13 15:16:31,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (26 of 35 remaining) [2024-11-13 15:16:31,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (25 of 35 remaining) [2024-11-13 15:16:31,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (24 of 35 remaining) [2024-11-13 15:16:31,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (23 of 35 remaining) [2024-11-13 15:16:31,642 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (22 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (21 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (20 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (19 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (18 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (17 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (16 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (15 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (14 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (13 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (12 of 35 remaining) [2024-11-13 15:16:31,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (11 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (10 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (9 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (8 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (7 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (6 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (5 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (4 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (3 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (2 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (1 of 35 remaining) [2024-11-13 15:16:31,644 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONMEMORY_LEAK (0 of 35 remaining) [2024-11-13 15:16:31,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:16:31,645 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 15:16:31,646 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:16:31,646 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 15:16:31,766 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 15:16:31,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 454 places, 591 transitions, 1200 flow [2024-11-13 15:16:31,937 INFO L124 PetriNetUnfolderBase]: 144/603 cut-off events. [2024-11-13 15:16:31,938 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-13 15:16:31,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 603 events. 144/603 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4032 event pairs, 0 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 586. Up to 10 conditions per place. [2024-11-13 15:16:31,959 INFO L82 GeneralOperation]: Start removeDead. Operand has 454 places, 591 transitions, 1200 flow [2024-11-13 15:16:31,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 454 places, 591 transitions, 1200 flow [2024-11-13 15:16:31,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:16:31,979 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;@430e5bb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:16:31,979 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-13 15:16:31,984 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:16:31,984 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-13 15:16:31,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:16:31,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:16:31,984 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-13 15:16:31,986 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err2ASSERT_VIOLATIONMEMORY_LEAK, thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err6ASSERT_VIOLATIONMEMORY_LEAK, thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (and 42 more)] === [2024-11-13 15:16:31,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:31,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2164429, now seen corresponding path program 1 times [2024-11-13 15:16:31,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:31,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69304018] [2024-11-13 15:16:31,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:31,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:32,152 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 15:16:32,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:32,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69304018] [2024-11-13 15:16:32,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69304018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:32,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:32,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:16:32,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155286288] [2024-11-13 15:16:32,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:32,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:16:32,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:32,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:16:32,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:16:32,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 591 [2024-11-13 15:16:32,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 591 transitions, 1200 flow. Second operand has 2 states, 2 states have (on average 156.0) internal successors, (312), 2 states have internal predecessors, (312), 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 15:16:32,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:16:32,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 591 [2024-11-13 15:16:32,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand