./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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/AutomizerReach.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-DataRace-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 ! data-race) ) --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 05:12:58,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:12:58,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:12:58,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:12:58,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:12:58,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:12:58,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:12:58,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:12:58,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:12:58,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:12:58,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:12:58,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:12:58,796 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:12:58,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:12:58,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:12:58,797 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:12:58,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:12:58,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:12:58,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:12:58,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:12:58,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:12:58,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:12:58,797 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:12:58,799 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:12:58,800 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:12:58,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:12:58,800 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:12:58,800 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:12:58,800 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:12:58,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:12:58,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:12:58,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:12:58,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:12:58,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:12:58,801 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:12:58,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:12:58,801 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:12:58,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:12:58,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:12:58,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:12:58,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:12:58,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:12:58,802 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 ! data-race) ) 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 05:12:59,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:12:59,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:12:59,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:12:59,120 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:12:59,120 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:12:59,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2025-02-08 05:13:00,409 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2e46748c3/23e2f760c70a48b2820164832cfb41e9/FLAG0ddb23df2 [2025-02-08 05:13:00,753 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:13:00,754 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/43_NetBSD_sysmon_power_sliced-pthread.i [2025-02-08 05:13:00,767 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2e46748c3/23e2f760c70a48b2820164832cfb41e9/FLAG0ddb23df2 [2025-02-08 05:13:00,779 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2e46748c3/23e2f760c70a48b2820164832cfb41e9 [2025-02-08 05:13:00,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:13:00,783 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:13:00,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:13:00,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:13:00,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:13:00,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:13:00" (1/1) ... [2025-02-08 05:13:00,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137ce0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:00, skipping insertion in model container [2025-02-08 05:13:00,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:13:00" (1/1) ... [2025-02-08 05:13:00,823 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:13:01,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:13:01,222 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:13:01,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:13:01,309 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:13:01,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01 WrapperNode [2025-02-08 05:13:01,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:13:01,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:13:01,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:13:01,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:13:01,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,349 INFO L138 Inliner]: procedures = 173, calls = 62, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 478 [2025-02-08 05:13:01,350 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:13:01,350 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:13:01,350 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:13:01,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:13:01,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,377 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:13:01,387 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:13:01,387 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:13:01,387 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:13:01,388 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (1/1) ... [2025-02-08 05:13:01,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:13:01,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:13:01,415 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 05:13:01,420 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 05:13:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:13:01,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:13:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:13:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:13:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:13:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:13:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:13:01,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:13:01,445 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 05:13:01,580 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:13:01,582 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:13:02,033 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L13-18: assume false; [2025-02-08 05:13:02,033 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L13-18: assume !false; [2025-02-08 05:13:02,033 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L13-19: assume false; [2025-02-08 05:13:02,033 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741: assume 0 != sysmonread_power_#t~ret25#1; [2025-02-08 05:13:02,033 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741: assume !(0 != sysmonread_power_#t~ret25#1); [2025-02-08 05:13:02,033 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-1: havoc sysmonread_power_#t~ret25#1; [2025-02-08 05:13:02,033 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-2: havoc sysmonread_power_#t~ret25#1; [2025-02-08 05:13:02,034 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-3: assume { :end_inline_sysmon_get_power_event } true;assume -2147483648 <= sysmonread_power_#t~ret25#1 && sysmonread_power_#t~ret25#1 <= 2147483647; [2025-02-08 05:13:02,034 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-4: havoc sysmon_get_power_event_#t~nondet2#1; [2025-02-08 05:13:02,034 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-5: sysmonread_power_#t~ret25#1 := sysmon_get_power_event_#res#1; [2025-02-08 05:13:02,034 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743: assume 0 != sysmonread_power_#t~nondet26#1; [2025-02-08 05:13:02,034 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743: assume !(0 != sysmonread_power_#t~nondet26#1); [2025-02-08 05:13:02,035 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-1: havoc sysmonread_power_#t~nondet26#1; [2025-02-08 05:13:02,035 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-2: havoc sysmonread_power_#t~nondet26#1; [2025-02-08 05:13:02,035 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-3: assume -2147483648 <= sysmonread_power_#t~nondet26#1 && sysmonread_power_#t~nondet26#1 <= 2147483647; [2025-02-08 05:13:02,035 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-4: havoc sysmonread_power_#t~nondet26#1; [2025-02-08 05:13:02,035 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: assume true;#race~COND~0 := 0; [2025-02-08 05:13:02,035 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: assume !true; [2025-02-08 05:13:02,036 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-1: assume 0 == ~COND~0 % 256; [2025-02-08 05:13:02,036 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-1: assume !(0 == ~COND~0 % 256); [2025-02-08 05:13:02,036 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-2: assume 0 == #race~COND~0; [2025-02-08 05:13:02,036 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-2: assume !(0 == #race~COND~0); [2025-02-08 05:13:02,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: [2025-02-08 05:13:02,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: SUMMARY for call sysmonread_power_#t~ret28#1 := #PthreadsMutexLock(~#MTX~0.base, ~#MTX~0.offset); srcloc: null [2025-02-08 05:13:02,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-2: [2025-02-08 05:13:02,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-3: [2025-02-08 05:13:02,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-4: SUMMARY for call sysmonread_power_#t~ret27#1 := #PthreadsMutexUnlock(~#MTX~0.base, ~#MTX~0.offset); srcloc: null [2025-02-08 05:13:02,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-5: [2025-02-08 05:13:02,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-1: assume 0 == ~COND~0 % 256; [2025-02-08 05:13:02,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-1: assume !(0 == ~COND~0 % 256); [2025-02-08 05:13:02,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-2: assume 0 == #race~COND~0; [2025-02-08 05:13:02,037 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-2: assume !(0 == #race~COND~0); [2025-02-08 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-3: #race~COND~0 := 0; [2025-02-08 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc sysmon_power_daemon_task_#t~ret13#1; [2025-02-08 05:13:02,038 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 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-2: havoc sysmon_queue_power_event_#t~nondet1#1; [2025-02-08 05:13:02,038 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 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: assume 0 != sysmon_power_daemon_task_#t~nondet14#1; [2025-02-08 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717: assume !(0 != sysmon_power_daemon_task_#t~nondet14#1); [2025-02-08 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-1: havoc sysmon_power_daemon_task_#t~nondet14#1; [2025-02-08 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-2: havoc sysmon_power_daemon_task_#t~nondet14#1; [2025-02-08 05:13:02,038 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 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L717-4: havoc sysmon_power_daemon_task_#t~nondet14#1; [2025-02-08 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718: havoc sysmon_power_daemon_task_#t~ret15#1; [2025-02-08 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-1: havoc sysmon_power_daemon_task_#t~ret15#1; [2025-02-08 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-2: [2025-02-08 05:13:02,038 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 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L718-4: [2025-02-08 05:13:02,038 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721: assume #race~COND~0 == sysmon_power_daemon_task_#t~nondet16#1; [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721: assume !(#race~COND~0 == sysmon_power_daemon_task_#t~nondet16#1); [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721-1: havoc sysmon_power_daemon_task_#t~nondet16#1; [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721-2: #race~COND~0 := sysmon_power_daemon_task_#t~nondet16#1; [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721-3: havoc sysmon_power_daemon_task_#t~nondet16#1; [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L721-4: ~COND~0 := 1; [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L789-2: assume { :end_inline_sysmon_power_daemon_task } true;assume -2147483648 <= #t~ret49#1 && #t~ret49#1 <= 2147483647; [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723: havoc sysmon_power_daemon_task_#t~ret17#1; [2025-02-08 05:13:02,039 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~nondet16#1, sysmon_power_daemon_task_#t~ret17#1, sysmon_power_daemon_task_#t~nondet18#1; [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723-1: havoc sysmon_power_daemon_task_#t~ret17#1; [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L789-4: #t~ret49#1 := sysmon_power_daemon_task_#res#1; [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723-2: [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723-3: SUMMARY for call sysmon_power_daemon_task_#t~ret17#1 := #PthreadsMutexUnlock(~#MTX~0.base, ~#MTX~0.offset); srcloc: null [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723-4: [2025-02-08 05:13:02,039 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725: assume { :end_inline_reach_error } true;assume false; [2025-02-08 05:13:02,040 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 05:13:02,040 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-2: assume false; [2025-02-08 05:13:02,040 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-2: assume !false; [2025-02-08 05:13:02,041 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 05:13:02,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726: havoc sysmon_power_daemon_task_#t~nondet18#1; [2025-02-08 05:13:02,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-2: havoc sysmon_power_daemon_task_#t~nondet18#1; [2025-02-08 05:13:02,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-3: sysmon_power_daemon_task_#res#1 := sysmon_power_daemon_task_#t~nondet18#1; [2025-02-08 05:13:02,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-4: assume -2147483648 <= sysmon_power_daemon_task_#t~nondet18#1 && sysmon_power_daemon_task_#t~nondet18#1 <= 2147483647; [2025-02-08 05:13:02,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-5: havoc sysmon_power_daemon_task_#t~nondet18#1; [2025-02-08 05:13:02,159 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:13:02,159 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:13:02,216 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:13:02,216 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:13:02,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:13:02 BoogieIcfgContainer [2025-02-08 05:13:02,217 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:13:02,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:13:02,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:13:02,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:13:02,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:13:00" (1/3) ... [2025-02-08 05:13:02,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301fe4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:13:02, skipping insertion in model container [2025-02-08 05:13:02,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:01" (2/3) ... [2025-02-08 05:13:02,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301fe4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:13:02, skipping insertion in model container [2025-02-08 05:13:02,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:13:02" (3/3) ... [2025-02-08 05:13:02,232 INFO L128 eAbstractionObserver]: Analyzing ICFG 43_NetBSD_sysmon_power_sliced-pthread.i [2025-02-08 05:13:02,244 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:13:02,246 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_NetBSD_sysmon_power_sliced-pthread.i that has 2 procedures, 395 locations, 1 initial locations, 4 loop locations, and 3 error locations. [2025-02-08 05:13:02,247 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:13:02,375 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:02,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 398 places, 431 transitions, 866 flow [2025-02-08 05:13:02,608 INFO L124 PetriNetUnfolderBase]: 36/438 cut-off events. [2025-02-08 05:13:02,611 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:13:02,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 438 events. 36/438 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1334 event pairs, 0 based on Foata normal form. 0/393 useless extension candidates. Maximal degree in co-relation 294. Up to 8 conditions per place. [2025-02-08 05:13:02,619 INFO L82 GeneralOperation]: Start removeDead. Operand has 398 places, 431 transitions, 866 flow [2025-02-08 05:13:02,627 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 398 places, 431 transitions, 866 flow [2025-02-08 05:13:02,641 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:02,656 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:02,657 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:02,684 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:02,685 INFO L124 PetriNetUnfolderBase]: 0/155 cut-off events. [2025-02-08 05:13:02,685 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:13:02,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:02,686 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:02,686 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:02,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:02,692 INFO L85 PathProgramCache]: Analyzing trace with hash -80685816, now seen corresponding path program 1 times [2025-02-08 05:13:02,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:02,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436927615] [2025-02-08 05:13:02,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:02,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:02,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-08 05:13:02,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-08 05:13:02,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:02,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:02,880 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:02,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-08 05:13:02,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-08 05:13:02,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:02,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:03,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:03,032 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:03,034 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:03,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:13:03,036 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:03,040 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:03,043 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 05:13:03,130 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:03,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 652 places, 719 transitions, 1448 flow [2025-02-08 05:13:03,333 INFO L124 PetriNetUnfolderBase]: 72/733 cut-off events. [2025-02-08 05:13:03,333 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 05:13:03,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 741 conditions, 733 events. 72/733 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3612 event pairs, 0 based on Foata normal form. 0/644 useless extension candidates. Maximal degree in co-relation 581. Up to 8 conditions per place. [2025-02-08 05:13:03,363 INFO L82 GeneralOperation]: Start removeDead. Operand has 652 places, 719 transitions, 1448 flow [2025-02-08 05:13:03,375 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 652 places, 719 transitions, 1448 flow [2025-02-08 05:13:03,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:03,380 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:03,380 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:03,399 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:03,400 INFO L124 PetriNetUnfolderBase]: 0/179 cut-off events. [2025-02-08 05:13:03,400 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 05:13:03,400 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:03,402 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:03,402 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:03,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:03,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1576935500, now seen corresponding path program 1 times [2025-02-08 05:13:03,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:03,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117540356] [2025-02-08 05:13:03,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:03,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:03,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-08 05:13:03,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 05:13:03,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:03,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:03,508 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:03,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-08 05:13:03,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-08 05:13:03,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:03,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:03,619 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:03,619 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:03,619 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:03,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 05:13:03,619 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:03,620 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:03,620 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-08 05:13:03,722 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:03,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 906 places, 1007 transitions, 2032 flow [2025-02-08 05:13:04,100 INFO L124 PetriNetUnfolderBase]: 108/1028 cut-off events. [2025-02-08 05:13:04,101 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 05:13:04,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1041 conditions, 1028 events. 108/1028 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6199 event pairs, 0 based on Foata normal form. 0/895 useless extension candidates. Maximal degree in co-relation 868. Up to 8 conditions per place. [2025-02-08 05:13:04,138 INFO L82 GeneralOperation]: Start removeDead. Operand has 906 places, 1007 transitions, 2032 flow [2025-02-08 05:13:04,159 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 906 places, 1007 transitions, 2032 flow [2025-02-08 05:13:04,161 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:04,162 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:04,162 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:04,193 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:04,193 INFO L124 PetriNetUnfolderBase]: 0/224 cut-off events. [2025-02-08 05:13:04,193 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-08 05:13:04,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:04,193 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:04,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:04,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:04,196 INFO L85 PathProgramCache]: Analyzing trace with hash -725420865, now seen corresponding path program 1 times [2025-02-08 05:13:04,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:04,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490095563] [2025-02-08 05:13:04,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:04,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:04,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-02-08 05:13:04,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-02-08 05:13:04,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:04,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:04,274 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:04,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-02-08 05:13:04,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-02-08 05:13:04,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:04,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:04,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:04,382 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:04,384 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:04,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:13:04,385 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:04,385 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:04,386 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-08 05:13:04,510 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:04,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1160 places, 1295 transitions, 2618 flow [2025-02-08 05:13:05,098 INFO L124 PetriNetUnfolderBase]: 144/1323 cut-off events. [2025-02-08 05:13:05,099 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-08 05:13:05,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 1323 events. 144/1323 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 8984 event pairs, 0 based on Foata normal form. 0/1146 useless extension candidates. Maximal degree in co-relation 1155. Up to 8 conditions per place. [2025-02-08 05:13:05,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 1160 places, 1295 transitions, 2618 flow [2025-02-08 05:13:05,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1160 places, 1295 transitions, 2618 flow [2025-02-08 05:13:05,173 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:05,173 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:05,174 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:05,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:05,204 INFO L124 PetriNetUnfolderBase]: 0/299 cut-off events. [2025-02-08 05:13:05,204 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-08 05:13:05,204 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:05,205 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:05,205 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:05,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:05,206 INFO L85 PathProgramCache]: Analyzing trace with hash 374078761, now seen corresponding path program 1 times [2025-02-08 05:13:05,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:05,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981288345] [2025-02-08 05:13:05,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:05,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:05,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-08 05:13:05,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-08 05:13:05,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:05,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:05,272 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:05,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-08 05:13:05,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-08 05:13:05,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:05,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:05,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:05,322 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:05,322 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:05,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:13:05,322 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:05,323 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:05,323 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2025-02-08 05:13:05,449 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:05,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1414 places, 1583 transitions, 3206 flow [2025-02-08 05:13:06,460 INFO L124 PetriNetUnfolderBase]: 180/1618 cut-off events. [2025-02-08 05:13:06,461 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-02-08 05:13:06,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 1618 events. 180/1618 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 11842 event pairs, 0 based on Foata normal form. 0/1397 useless extension candidates. Maximal degree in co-relation 1442. Up to 8 conditions per place. [2025-02-08 05:13:06,565 INFO L82 GeneralOperation]: Start removeDead. Operand has 1414 places, 1583 transitions, 3206 flow [2025-02-08 05:13:06,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1414 places, 1583 transitions, 3206 flow [2025-02-08 05:13:06,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:06,609 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:06,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:06,679 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:06,680 INFO L124 PetriNetUnfolderBase]: 9/430 cut-off events. [2025-02-08 05:13:06,680 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-02-08 05:13:06,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:06,680 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:06,681 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:06,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:06,682 INFO L85 PathProgramCache]: Analyzing trace with hash -971759118, now seen corresponding path program 1 times [2025-02-08 05:13:06,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:06,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079133870] [2025-02-08 05:13:06,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:06,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:06,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-08 05:13:06,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-08 05:13:06,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:06,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:06,744 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:06,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-08 05:13:06,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-08 05:13:06,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:06,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:06,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:06,802 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:06,802 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:06,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:13:06,802 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:06,803 WARN L246 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:06,803 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2025-02-08 05:13:06,947 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:06,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1668 places, 1871 transitions, 3796 flow [2025-02-08 05:13:08,102 INFO L124 PetriNetUnfolderBase]: 216/1913 cut-off events. [2025-02-08 05:13:08,102 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-02-08 05:13:08,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1947 conditions, 1913 events. 216/1913 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 14718 event pairs, 0 based on Foata normal form. 0/1648 useless extension candidates. Maximal degree in co-relation 1729. Up to 8 conditions per place. [2025-02-08 05:13:08,217 INFO L82 GeneralOperation]: Start removeDead. Operand has 1668 places, 1871 transitions, 3796 flow [2025-02-08 05:13:08,258 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1668 places, 1871 transitions, 3796 flow [2025-02-08 05:13:08,259 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:08,261 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:08,261 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:08,457 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:08,457 INFO L124 PetriNetUnfolderBase]: 27/624 cut-off events. [2025-02-08 05:13:08,457 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-02-08 05:13:08,457 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:08,458 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:08,458 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:08,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:08,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1464742886, now seen corresponding path program 1 times [2025-02-08 05:13:08,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:08,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200755031] [2025-02-08 05:13:08,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:08,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:08,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-08 05:13:08,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-08 05:13:08,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:08,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:08,521 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:08,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-08 05:13:08,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-08 05:13:08,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:08,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:08,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:08,602 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:08,602 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:08,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 05:13:08,602 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:08,604 WARN L246 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:08,604 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2025-02-08 05:13:08,746 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:08,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1922 places, 2159 transitions, 4388 flow [2025-02-08 05:13:10,588 INFO L124 PetriNetUnfolderBase]: 252/2208 cut-off events. [2025-02-08 05:13:10,588 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2025-02-08 05:13:10,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2251 conditions, 2208 events. 252/2208 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 17581 event pairs, 0 based on Foata normal form. 0/1899 useless extension candidates. Maximal degree in co-relation 2016. Up to 8 conditions per place. [2025-02-08 05:13:10,702 INFO L82 GeneralOperation]: Start removeDead. Operand has 1922 places, 2159 transitions, 4388 flow [2025-02-08 05:13:10,737 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1922 places, 2159 transitions, 4388 flow [2025-02-08 05:13:10,738 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:10,739 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:10,739 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:10,951 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:10,951 INFO L124 PetriNetUnfolderBase]: 49/830 cut-off events. [2025-02-08 05:13:10,951 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2025-02-08 05:13:10,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:10,952 INFO L206 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:10,952 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:10,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:10,953 INFO L85 PathProgramCache]: Analyzing trace with hash 542811297, now seen corresponding path program 1 times [2025-02-08 05:13:10,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:10,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672025782] [2025-02-08 05:13:10,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:10,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:10,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-02-08 05:13:11,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-02-08 05:13:11,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:11,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:11,001 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:11,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-02-08 05:13:11,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-02-08 05:13:11,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:11,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:11,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:11,049 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:11,049 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:11,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:13:11,049 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:11,050 WARN L246 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:11,050 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2025-02-08 05:13:11,219 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:11,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2176 places, 2447 transitions, 4982 flow [2025-02-08 05:13:13,071 INFO L124 PetriNetUnfolderBase]: 288/2503 cut-off events. [2025-02-08 05:13:13,071 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2025-02-08 05:13:13,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2556 conditions, 2503 events. 288/2503 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 20522 event pairs, 0 based on Foata normal form. 0/2150 useless extension candidates. Maximal degree in co-relation 2303. Up to 9 conditions per place. [2025-02-08 05:13:13,213 INFO L82 GeneralOperation]: Start removeDead. Operand has 2176 places, 2447 transitions, 4982 flow [2025-02-08 05:13:13,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2176 places, 2447 transitions, 4982 flow [2025-02-08 05:13:13,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:13,278 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:13,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:13,624 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:13,624 INFO L124 PetriNetUnfolderBase]: 82/1131 cut-off events. [2025-02-08 05:13:13,625 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2025-02-08 05:13:13,625 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:13,625 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:13,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:13,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:13,626 INFO L85 PathProgramCache]: Analyzing trace with hash 358847623, now seen corresponding path program 1 times [2025-02-08 05:13:13,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:13,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667241304] [2025-02-08 05:13:13,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:13,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:13,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-02-08 05:13:13,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-02-08 05:13:13,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:13,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:13,678 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:13,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-02-08 05:13:13,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-02-08 05:13:13,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:13,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:13,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:13,752 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:13,752 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:13,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:13:13,753 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:13,755 WARN L246 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:13,755 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2025-02-08 05:13:14,048 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:14,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2430 places, 2735 transitions, 5578 flow [2025-02-08 05:13:16,460 INFO L124 PetriNetUnfolderBase]: 324/2798 cut-off events. [2025-02-08 05:13:16,461 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2025-02-08 05:13:16,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2862 conditions, 2798 events. 324/2798 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 23380 event pairs, 0 based on Foata normal form. 0/2401 useless extension candidates. Maximal degree in co-relation 2590. Up to 10 conditions per place. [2025-02-08 05:13:16,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 2430 places, 2735 transitions, 5578 flow [2025-02-08 05:13:16,699 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2430 places, 2735 transitions, 5578 flow [2025-02-08 05:13:16,700 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:16,700 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:16,700 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:17,406 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:17,406 INFO L124 PetriNetUnfolderBase]: 113/1403 cut-off events. [2025-02-08 05:13:17,407 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2025-02-08 05:13:17,407 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:17,407 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:17,407 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:17,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:17,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1899969332, now seen corresponding path program 1 times [2025-02-08 05:13:17,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:17,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030986581] [2025-02-08 05:13:17,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:17,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:17,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-02-08 05:13:17,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-02-08 05:13:17,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:17,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:17,456 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:17,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-02-08 05:13:17,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-02-08 05:13:17,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:17,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:17,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:17,524 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:17,524 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:17,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 05:13:17,524 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:17,525 WARN L246 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:17,525 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2025-02-08 05:13:17,697 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:17,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2684 places, 3023 transitions, 6176 flow [2025-02-08 05:13:20,674 INFO L124 PetriNetUnfolderBase]: 360/3093 cut-off events. [2025-02-08 05:13:20,675 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2025-02-08 05:13:20,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3169 conditions, 3093 events. 360/3093 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 26287 event pairs, 0 based on Foata normal form. 0/2652 useless extension candidates. Maximal degree in co-relation 2877. Up to 11 conditions per place. [2025-02-08 05:13:20,925 INFO L82 GeneralOperation]: Start removeDead. Operand has 2684 places, 3023 transitions, 6176 flow [2025-02-08 05:13:21,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2684 places, 3023 transitions, 6176 flow [2025-02-08 05:13:21,166 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:21,166 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:21,166 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:21,865 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:21,865 INFO L124 PetriNetUnfolderBase]: 146/1673 cut-off events. [2025-02-08 05:13:21,865 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2025-02-08 05:13:21,865 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:21,866 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:21,866 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:21,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:21,867 INFO L85 PathProgramCache]: Analyzing trace with hash -91906448, now seen corresponding path program 1 times [2025-02-08 05:13:21,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:21,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830344374] [2025-02-08 05:13:21,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:21,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:21,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-02-08 05:13:21,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-02-08 05:13:21,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:21,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:21,906 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:21,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-02-08 05:13:21,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-02-08 05:13:21,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:21,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:21,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:21,960 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:21,960 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:21,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 05:13:21,961 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:21,961 WARN L246 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:21,961 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2025-02-08 05:13:22,147 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:22,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2938 places, 3311 transitions, 6776 flow [2025-02-08 05:13:25,774 INFO L124 PetriNetUnfolderBase]: 396/3388 cut-off events. [2025-02-08 05:13:25,774 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2025-02-08 05:13:26,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3477 conditions, 3388 events. 396/3388 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 29137 event pairs, 0 based on Foata normal form. 0/2903 useless extension candidates. Maximal degree in co-relation 3164. Up to 12 conditions per place. [2025-02-08 05:13:26,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 2938 places, 3311 transitions, 6776 flow [2025-02-08 05:13:26,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2938 places, 3311 transitions, 6776 flow [2025-02-08 05:13:26,110 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:26,110 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:26,110 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:27,211 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:27,212 INFO L124 PetriNetUnfolderBase]: 183/1972 cut-off events. [2025-02-08 05:13:27,212 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2025-02-08 05:13:27,212 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:27,212 INFO L206 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:27,212 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:27,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:27,213 INFO L85 PathProgramCache]: Analyzing trace with hash 644139635, now seen corresponding path program 1 times [2025-02-08 05:13:27,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:27,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992132985] [2025-02-08 05:13:27,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:27,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:27,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-02-08 05:13:27,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-02-08 05:13:27,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:27,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:27,262 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:27,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-02-08 05:13:27,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-02-08 05:13:27,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:27,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:27,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:27,330 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:27,330 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:27,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 05:13:27,331 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:27,331 WARN L246 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:27,331 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2025-02-08 05:13:27,551 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:27,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 3192 places, 3599 transitions, 7378 flow [2025-02-08 05:13:31,887 INFO L124 PetriNetUnfolderBase]: 432/3683 cut-off events. [2025-02-08 05:13:31,887 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2025-02-08 05:13:32,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3786 conditions, 3683 events. 432/3683 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 32061 event pairs, 0 based on Foata normal form. 0/3154 useless extension candidates. Maximal degree in co-relation 3464. Up to 13 conditions per place. [2025-02-08 05:13:32,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 3192 places, 3599 transitions, 7378 flow [2025-02-08 05:13:32,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 3192 places, 3599 transitions, 7378 flow [2025-02-08 05:13:32,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:32,540 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:32,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 05:13:33,856 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:13:33,856 INFO L124 PetriNetUnfolderBase]: 220/2285 cut-off events. [2025-02-08 05:13:33,856 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2025-02-08 05:13:33,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:13:33,856 INFO L206 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:13:33,857 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-02-08 05:13:33,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:13:33,857 INFO L85 PathProgramCache]: Analyzing trace with hash -399494699, now seen corresponding path program 1 times [2025-02-08 05:13:33,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:13:33,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273822442] [2025-02-08 05:13:33,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:13:33,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:13:33,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-02-08 05:13:33,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-02-08 05:13:33,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:33,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:33,911 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:13:33,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-02-08 05:13:33,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-02-08 05:13:33,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:13:33,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:13:33,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:13:33,997 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:13:33,997 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2025-02-08 05:13:33,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 05:13:33,997 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 05:13:33,998 WARN L246 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:13:33,998 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2025-02-08 05:13:34,252 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:13:34,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 3446 places, 3887 transitions, 7982 flow [2025-02-08 05:13:39,552 INFO L124 PetriNetUnfolderBase]: 468/3978 cut-off events. [2025-02-08 05:13:39,552 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2025-02-08 05:13:39,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4096 conditions, 3978 events. 468/3978 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 34981 event pairs, 0 based on Foata normal form. 0/3405 useless extension candidates. Maximal degree in co-relation 3772. Up to 14 conditions per place. [2025-02-08 05:13:39,934 INFO L82 GeneralOperation]: Start removeDead. Operand has 3446 places, 3887 transitions, 7982 flow [2025-02-08 05:13:40,054 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 3446 places, 3887 transitions, 7982 flow [2025-02-08 05:13:40,054 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:13:40,055 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=LoopHeads, 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;@ed92613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:13:40,055 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.