./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 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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-?-48c9605-m [2025-02-08 08:13:38,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:13:38,167 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:13:38,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:13:38,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:13:38,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:13:38,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:13:38,194 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:13:38,194 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:13:38,194 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:13:38,194 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:13:38,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:13:38,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:13:38,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:13:38,195 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:13:38,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:13:38,196 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:13:38,196 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:13:38,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:13:38,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:13:38,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:13:38,197 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:13:38,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:13:38,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:13:38,197 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:13:38,197 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:13:38,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:13:38,197 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 [2025-02-08 08:13:38,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:13:38,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:13:38,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:13:38,416 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:13:38,417 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:13:38,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2025-02-08 08:13:39,495 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/98caa8ac2/02b6fdf5a7a444ea81502605384f5288/FLAG840a9b604 [2025-02-08 08:13:39,802 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:13:39,803 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2025-02-08 08:13:39,818 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/98caa8ac2/02b6fdf5a7a444ea81502605384f5288/FLAG840a9b604 [2025-02-08 08:13:39,834 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/98caa8ac2/02b6fdf5a7a444ea81502605384f5288 [2025-02-08 08:13:39,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:13:39,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:13:39,839 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:13:39,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:13:39,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:13:39,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:13:39" (1/1) ... [2025-02-08 08:13:39,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2a1cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:39, skipping insertion in model container [2025-02-08 08:13:39,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:13:39" (1/1) ... [2025-02-08 08:13:39,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:13:40,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:13:40,077 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:13:40,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:13:40,162 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:13:40,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40 WrapperNode [2025-02-08 08:13:40,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:13:40,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:13:40,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:13:40,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:13:40,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,200 INFO L138 Inliner]: procedures = 173, calls = 62, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 468 [2025-02-08 08:13:40,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:13:40,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:13:40,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:13:40,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:13:40,208 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,209 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,212 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,224 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-02-08 08:13:40,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,233 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:13:40,240 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:13:40,240 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:13:40,240 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:13:40,241 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (1/1) ... [2025-02-08 08:13:40,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:13:40,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:13:40,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:13:40,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:13:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 08:13:40,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 08:13:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 08:13:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:13:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:13:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 08:13:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 08:13:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:13:40,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:13:40,285 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:13:40,410 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:13:40,412 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L13-18: assume false; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L13-18: assume !false; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L13-19: assume false; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L13-19: assume !false; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741: assume 0 != sysmonread_power_#t~ret24#1; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741: assume !(0 != sysmonread_power_#t~ret24#1); [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-1: havoc sysmonread_power_#t~ret24#1; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-2: havoc sysmonread_power_#t~ret24#1; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-3: assume { :end_inline_sysmon_get_power_event } true;assume -2147483648 <= sysmonread_power_#t~ret24#1 && sysmonread_power_#t~ret24#1 <= 2147483647; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-4: havoc sysmon_get_power_event_#t~nondet2#1; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-5: sysmonread_power_#t~ret24#1 := sysmon_get_power_event_#res#1; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743: assume 0 != sysmonread_power_#t~nondet25#1; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743: assume !(0 != sysmonread_power_#t~nondet25#1); [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-1: havoc sysmonread_power_#t~nondet25#1; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-2: havoc sysmonread_power_#t~nondet25#1; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-3: assume -2147483648 <= sysmonread_power_#t~nondet25#1 && sysmonread_power_#t~nondet25#1 <= 2147483647; [2025-02-08 08:13:40,736 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-4: havoc sysmonread_power_#t~nondet25#1; [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: assume 0 == ~COND~0 % 256; [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: assume !(0 == ~COND~0 % 256); [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: SUMMARY for call sysmonread_power_#t~ret27#1 := #PthreadsMutexLock(~#MTX~0.base, ~#MTX~0.offset); srcloc: null [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-2: [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-3: [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-4: SUMMARY for call sysmonread_power_#t~ret26#1 := #PthreadsMutexUnlock(~#MTX~0.base, ~#MTX~0.offset); srcloc: null [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-5: [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-1: assume 0 == ~COND~0 % 256; [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-1: assume !(0 == ~COND~0 % 256); [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc sysmon_power_daemon_task_#t~ret13#1; [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-1: assume { :end_inline_sysmon_queue_power_event } true;assume -2147483648 <= sysmon_power_daemon_task_#t~ret13#1 && sysmon_power_daemon_task_#t~ret13#1 <= 2147483647; [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-2: havoc sysmon_queue_power_event_#t~nondet1#1; [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-3: sysmon_power_daemon_task_#t~ret13#1 := sysmon_queue_power_event_#res#1; [2025-02-08 08:13:40,737 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: assume 0 != sysmon_power_daemon_task_#t~nondet14#1; [2025-02-08 08:13:40,739 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: assume !(0 != sysmon_power_daemon_task_#t~nondet14#1); [2025-02-08 08:13:40,739 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-1: havoc sysmon_power_daemon_task_#t~nondet14#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-2: havoc sysmon_power_daemon_task_#t~nondet14#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-3: assume -2147483648 <= sysmon_power_daemon_task_#t~nondet14#1 && sysmon_power_daemon_task_#t~nondet14#1 <= 2147483647; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-4: havoc sysmon_power_daemon_task_#t~nondet14#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718: havoc sysmon_power_daemon_task_#t~ret15#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-1: havoc sysmon_power_daemon_task_#t~ret15#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-2: [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-3: SUMMARY for call sysmon_power_daemon_task_#t~ret15#1 := #PthreadsMutexUnlock(~#MTX~0.base, ~#MTX~0.offset); srcloc: null [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-4: [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721: ~COND~0 := 1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L789-2: assume { :end_inline_sysmon_power_daemon_task } true;assume -2147483648 <= #t~ret48#1 && #t~ret48#1 <= 2147483647; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723: havoc sysmon_power_daemon_task_#t~ret16#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L789-3: havoc sysmon_power_daemon_task_#t~nondet3#1, sysmon_power_daemon_task_#t~nondet4#1, sysmon_power_daemon_task_#t~ret5#1, sysmon_power_daemon_task_#t~nondet6#1, sysmon_power_daemon_task_#t~switch7#1, sysmon_power_daemon_task_#t~nondet8#1, sysmon_power_daemon_task_#t~ret9#1, sysmon_power_daemon_task_#t~nondet10#1, sysmon_power_daemon_task_#t~ret11#1, sysmon_power_daemon_task_#t~ret12#1, sysmon_power_daemon_task_#t~ret13#1, sysmon_power_daemon_task_#t~nondet14#1, sysmon_power_daemon_task_#t~ret15#1, sysmon_power_daemon_task_#t~ret16#1, sysmon_power_daemon_task_#t~nondet17#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723-1: havoc sysmon_power_daemon_task_#t~ret16#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L789-4: #t~ret48#1 := sysmon_power_daemon_task_#res#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723-2: [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723-3: SUMMARY for call sysmon_power_daemon_task_#t~ret16#1 := #PthreadsMutexUnlock(~#MTX~0.base, ~#MTX~0.offset); srcloc: null [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723-4: [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725: assume { :end_inline_reach_error } true;assume false; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-2: assume false; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-2: assume !false; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-3: assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726: havoc sysmon_power_daemon_task_#t~nondet17#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-2: havoc sysmon_power_daemon_task_#t~nondet17#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-3: sysmon_power_daemon_task_#res#1 := sysmon_power_daemon_task_#t~nondet17#1; [2025-02-08 08:13:40,740 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-4: assume -2147483648 <= sysmon_power_daemon_task_#t~nondet17#1 && sysmon_power_daemon_task_#t~nondet17#1 <= 2147483647; [2025-02-08 08:13:40,741 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-5: havoc sysmon_power_daemon_task_#t~nondet17#1; [2025-02-08 08:13:40,839 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:13:40,839 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:13:41,181 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:13:41,183 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:13:41,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:13:41 BoogieIcfgContainer [2025-02-08 08:13:41,184 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:13:41,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:13:41,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:13:41,188 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:13:41,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:13:39" (1/3) ... [2025-02-08 08:13:41,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f75e92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:13:41, skipping insertion in model container [2025-02-08 08:13:41,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:13:40" (2/3) ... [2025-02-08 08:13:41,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f75e92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:13:41, skipping insertion in model container [2025-02-08 08:13:41,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:13:41" (3/3) ... [2025-02-08 08:13:41,192 INFO L128 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced-pthread.i [2025-02-08 08:13:41,203 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:13:41,204 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_NetBSD_sysmon_power_sliced-pthread.i that has 2 procedures, 138 locations, 1 initial locations, 4 loop locations, and 12 error locations. [2025-02-08 08:13:41,204 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:13:41,277 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:13:41,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 172 transitions, 348 flow [2025-02-08 08:13:41,343 INFO L124 PetriNetUnfolderBase]: 34/176 cut-off events. [2025-02-08 08:13:41,344 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:13:41,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 176 events. 34/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 782 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 169. Up to 8 conditions per place. [2025-02-08 08:13:41,348 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 172 transitions, 348 flow [2025-02-08 08:13:41,353 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 172 transitions, 348 flow [2025-02-08 08:13:41,360 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:13:41,368 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;@426e28dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:13:41,369 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2025-02-08 08:13:41,375 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:13:41,376 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-02-08 08:13:41,376 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:13:41,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:13:41,377 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 08:13:41,377 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err8ASSERT_VIOLATIONMEMORY_LEAK, thr1Err4ASSERT_VIOLATIONMEMORY_LEAK, thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2025-02-08 08:13:41,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:13:41,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1068158, now seen corresponding path program 1 times [2025-02-08 08:13:41,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:13:41,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037259529] [2025-02-08 08:13:41,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:13:41,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:13:41,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 08:13:41,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 08:13:41,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:13:41,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:13:41,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:13:41,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:13:41,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037259529] [2025-02-08 08:13:41,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037259529] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:13:41,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:13:41,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:13:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282813064] [2025-02-08 08:13:41,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:13:41,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 08:13:41,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:13:41,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 08:13:41,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 08:13:41,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 172 [2025-02-08 08:13:41,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 172 transitions, 348 flow. Second operand has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 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) [2025-02-08 08:13:41,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:13:41,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 172 [2025-02-08 08:13:41,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:13:41,881 INFO L124 PetriNetUnfolderBase]: 100/282 cut-off events. [2025-02-08 08:13:41,881 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:13:41,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 282 events. 100/282 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1232 event pairs, 74 based on Foata normal form. 20/267 useless extension candidates. Maximal degree in co-relation 513. Up to 240 conditions per place. [2025-02-08 08:13:41,885 INFO L140 encePairwiseOnDemand]: 159/172 looper letters, 83 selfloop transitions, 0 changer transitions 0/105 dead transitions. [2025-02-08 08:13:41,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 105 transitions, 380 flow [2025-02-08 08:13:41,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 08:13:41,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 08:13:41,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 182 transitions. [2025-02-08 08:13:41,897 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5290697674418605 [2025-02-08 08:13:41,898 INFO L175 Difference]: Start difference. First operand has 141 places, 172 transitions, 348 flow. Second operand 2 states and 182 transitions. [2025-02-08 08:13:41,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 105 transitions, 380 flow [2025-02-08 08:13:41,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 105 transitions, 380 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:13:41,903 INFO L231 Difference]: Finished difference. Result has 96 places, 105 transitions, 214 flow [2025-02-08 08:13:41,905 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=214, PETRI_PLACES=96, PETRI_TRANSITIONS=105} [2025-02-08 08:13:41,909 INFO L279 CegarLoopForPetriNet]: 141 programPoint places, -45 predicate places. [2025-02-08 08:13:41,909 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 105 transitions, 214 flow [2025-02-08 08:13:41,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 44.0) internal successors, (88), 2 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) [2025-02-08 08:13:41,910 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:13:41,910 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2025-02-08 08:13:41,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:13:41,910 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err8ASSERT_VIOLATIONMEMORY_LEAK, thr1Err4ASSERT_VIOLATIONMEMORY_LEAK, thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (and 18 more)] === [2025-02-08 08:13:41,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:13:41,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1026827374, now seen corresponding path program 1 times [2025-02-08 08:13:41,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:13:41,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331089721] [2025-02-08 08:13:41,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:13:41,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:13:42,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 08:13:42,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 08:13:42,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:13:42,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 08:13:42,029 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 08:13:42,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 08:13:42,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 08:13:42,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:13:42,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 08:13:42,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 08:13:42,074 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 08:13:42,075 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2025-02-08 08:13:42,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (20 of 22 remaining) [2025-02-08 08:13:42,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (19 of 22 remaining) [2025-02-08 08:13:42,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (18 of 22 remaining) [2025-02-08 08:13:42,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (17 of 22 remaining) [2025-02-08 08:13:42,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (16 of 22 remaining) [2025-02-08 08:13:42,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (15 of 22 remaining) [2025-02-08 08:13:42,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 22 remaining) [2025-02-08 08:13:42,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (13 of 22 remaining) [2025-02-08 08:13:42,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (12 of 22 remaining) [2025-02-08 08:13:42,077 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (11 of 22 remaining) [2025-02-08 08:13:42,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (10 of 22 remaining) [2025-02-08 08:13:42,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (9 of 22 remaining) [2025-02-08 08:13:42,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (8 of 22 remaining) [2025-02-08 08:13:42,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (7 of 22 remaining) [2025-02-08 08:13:42,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (6 of 22 remaining) [2025-02-08 08:13:42,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (5 of 22 remaining) [2025-02-08 08:13:42,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (4 of 22 remaining) [2025-02-08 08:13:42,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (3 of 22 remaining) [2025-02-08 08:13:42,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (2 of 22 remaining) [2025-02-08 08:13:42,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (1 of 22 remaining) [2025-02-08 08:13:42,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (0 of 22 remaining) [2025-02-08 08:13:42,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:13:42,079 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-08 08:13:42,081 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 08:13:42,081 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 08:13:42,144 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:13:42,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 338 transitions, 686 flow [2025-02-08 08:13:42,202 INFO L124 PetriNetUnfolderBase]: 68/346 cut-off events. [2025-02-08 08:13:42,202 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:13:42,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 346 events. 68/346 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2080 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 334. Up to 8 conditions per place. [2025-02-08 08:13:42,210 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 338 transitions, 686 flow [2025-02-08 08:13:42,216 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 338 transitions, 686 flow [2025-02-08 08:13:42,218 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:13:42,219 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;@426e28dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:13:42,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2025-02-08 08:13:42,225 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:13:42,225 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-02-08 08:13:42,225 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:13:42,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:13:42,225 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 08:13:42,225 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err8ASSERT_VIOLATIONMEMORY_LEAK, thr1Err4ASSERT_VIOLATIONMEMORY_LEAK, thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2025-02-08 08:13:42,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:13:42,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1403792, now seen corresponding path program 1 times [2025-02-08 08:13:42,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:13:42,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636402278] [2025-02-08 08:13:42,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:13:42,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:13:42,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 08:13:42,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 08:13:42,362 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:13:42,362 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:13:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:13:42,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:13:42,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636402278] [2025-02-08 08:13:42,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636402278] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:13:42,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:13:42,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:13:42,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232484907] [2025-02-08 08:13:42,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:13:42,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 08:13:42,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:13:42,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 08:13:42,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 08:13:42,392 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 338 [2025-02-08 08:13:42,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 338 transitions, 686 flow. Second operand has 2 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 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) [2025-02-08 08:13:42,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:13:42,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 338 [2025-02-08 08:13:42,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:13:44,451 INFO L124 PetriNetUnfolderBase]: 20283/34541 cut-off events. [2025-02-08 08:13:44,452 INFO L125 PetriNetUnfolderBase]: For 228/228 co-relation queries the response was YES. [2025-02-08 08:13:44,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65483 conditions, 34541 events. 20283/34541 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 1225. Compared 279324 event pairs, 17169 based on Foata normal form. 3060/32285 useless extension candidates. Maximal degree in co-relation 63759. Up to 30709 conditions per place. [2025-02-08 08:13:44,613 INFO L140 encePairwiseOnDemand]: 313/338 looper letters, 164 selfloop transitions, 0 changer transitions 0/207 dead transitions. [2025-02-08 08:13:44,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 207 transitions, 752 flow [2025-02-08 08:13:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 08:13:44,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-08 08:13:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 357 transitions. [2025-02-08 08:13:44,617 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5281065088757396 [2025-02-08 08:13:44,618 INFO L175 Difference]: Start difference. First operand has 275 places, 338 transitions, 686 flow. Second operand 2 states and 357 transitions. [2025-02-08 08:13:44,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 207 transitions, 752 flow [2025-02-08 08:13:44,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 207 transitions, 752 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:13:44,621 INFO L231 Difference]: Finished difference. Result has 187 places, 207 transitions, 424 flow [2025-02-08 08:13:44,621 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=424, PETRI_PLACES=187, PETRI_TRANSITIONS=207} [2025-02-08 08:13:44,623 INFO L279 CegarLoopForPetriNet]: 275 programPoint places, -88 predicate places. [2025-02-08 08:13:44,623 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 207 transitions, 424 flow [2025-02-08 08:13:44,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 85.0) internal successors, (170), 2 states have internal predecessors, (170), 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) [2025-02-08 08:13:44,624 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:13:44,624 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 1, 1, 1, 1] [2025-02-08 08:13:44,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:13:44,624 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err8ASSERT_VIOLATIONMEMORY_LEAK, thr1Err4ASSERT_VIOLATIONMEMORY_LEAK, thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2025-02-08 08:13:44,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:13:44,625 INFO L85 PathProgramCache]: Analyzing trace with hash -170993429, now seen corresponding path program 1 times [2025-02-08 08:13:44,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:13:44,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253184937] [2025-02-08 08:13:44,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:13:44,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:13:44,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:13:44,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:13:44,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:13:44,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 08:13:44,714 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 08:13:44,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:13:44,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:13:44,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:13:44,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 08:13:44,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 08:13:44,745 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 08:13:44,745 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (30 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (29 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (28 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (27 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (26 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (25 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (24 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (23 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (22 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (21 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (20 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (19 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (18 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (17 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (16 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (15 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (14 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (13 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (12 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (11 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (10 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONMEMORY_LEAK (9 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONMEMORY_LEAK (8 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONMEMORY_LEAK (7 of 32 remaining) [2025-02-08 08:13:44,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (6 of 32 remaining) [2025-02-08 08:13:44,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONMEMORY_LEAK (5 of 32 remaining) [2025-02-08 08:13:44,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONMEMORY_LEAK (4 of 32 remaining) [2025-02-08 08:13:44,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONMEMORY_LEAK (3 of 32 remaining) [2025-02-08 08:13:44,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONMEMORY_LEAK (2 of 32 remaining) [2025-02-08 08:13:44,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONMEMORY_LEAK (1 of 32 remaining) [2025-02-08 08:13:44,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONMEMORY_LEAK (0 of 32 remaining) [2025-02-08 08:13:44,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:13:44,747 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-08 08:13:44,749 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 08:13:44,750 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-08 08:13:44,814 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:13:44,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 409 places, 504 transitions, 1026 flow [2025-02-08 08:13:44,868 INFO L124 PetriNetUnfolderBase]: 102/516 cut-off events. [2025-02-08 08:13:44,868 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 08:13:44,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 516 events. 102/516 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3498 event pairs, 0 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 499. Up to 8 conditions per place. [2025-02-08 08:13:44,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 409 places, 504 transitions, 1026 flow [2025-02-08 08:13:44,882 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 409 places, 504 transitions, 1026 flow [2025-02-08 08:13:44,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:13:44,884 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;@426e28dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:13:44,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2025-02-08 08:13:44,887 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:13:44,887 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-02-08 08:13:44,887 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:13:44,887 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:13:44,887 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 08:13:44,887 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thr1Err5ASSERT_VIOLATIONMEMORY_LEAK, thr1Err8ASSERT_VIOLATIONMEMORY_LEAK, thr1Err4ASSERT_VIOLATIONMEMORY_LEAK, thr1Err10ASSERT_VIOLATIONMEMORY_LEAK (and 38 more)] === [2025-02-08 08:13:44,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:13:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1904264, now seen corresponding path program 1 times [2025-02-08 08:13:44,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:13:44,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997848526] [2025-02-08 08:13:44,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:13:44,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:13:45,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 08:13:45,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 08:13:45,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:13:45,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:13:45,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:13:45,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:13:45,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997848526] [2025-02-08 08:13:45,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997848526] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:13:45,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:13:45,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:13:45,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843878987] [2025-02-08 08:13:45,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:13:45,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 08:13:45,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:13:45,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 08:13:45,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 08:13:45,032 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 504 [2025-02-08 08:13:45,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 504 transitions, 1026 flow. Second operand has 2 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 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) [2025-02-08 08:13:45,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:13:45,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 504 [2025-02-08 08:13:45,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand