./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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-complex/bounded_buffer.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:07:04,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:07:04,895 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:07:04,898 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:07:04,898 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:07:04,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:07:04,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:07:04,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:07:04,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:07:04,917 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:07:04,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:07:04,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:07:04,918 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:07:04,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:07:04,918 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:07:04,918 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:07:04,918 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:07:04,918 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:07:04,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:07:04,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:07:04,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:07:04,918 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:07:04,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:07:04,919 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:07:04,919 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:07:04,919 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:07:04,919 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:07:04,919 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:07:04,919 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:07:04,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:07:04,919 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:07:04,919 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:07:04,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:07:04,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:07:04,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:07:04,920 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:07:04,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:07:04,920 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:07:04,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:07:04,920 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:07:04,920 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:07:04,920 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:07:04,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:07:04,921 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 ! call(reach_error())) ) 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 -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2025-02-08 01:07:05,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:07:05,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:07:05,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:07:05,097 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:07:05,097 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:07:05,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2025-02-08 01:07:06,274 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/793f528b5/762fcc777ae94538b29929ae72e0e6a2/FLAG91d698b3c [2025-02-08 01:07:06,615 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:07:06,616 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2025-02-08 01:07:06,630 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/793f528b5/762fcc777ae94538b29929ae72e0e6a2/FLAG91d698b3c [2025-02-08 01:07:06,644 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/793f528b5/762fcc777ae94538b29929ae72e0e6a2 [2025-02-08 01:07:06,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:07:06,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:07:06,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:07:06,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:07:06,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:07:06,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:07:06" (1/1) ... [2025-02-08 01:07:06,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b813b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:06, skipping insertion in model container [2025-02-08 01:07:06,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:07:06" (1/1) ... [2025-02-08 01:07:06,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:07:07,132 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2025-02-08 01:07:07,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:07:07,191 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:07:07,267 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2025-02-08 01:07:07,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:07:07,395 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:07:07,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07 WrapperNode [2025-02-08 01:07:07,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:07:07,397 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:07:07,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:07:07,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:07:07,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,466 INFO L138 Inliner]: procedures = 429, calls = 134, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 450 [2025-02-08 01:07:07,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:07:07,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:07:07,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:07:07,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:07:07,474 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,478 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,493 INFO L175 MemorySlicer]: Split 78 memory accesses to 6 slices as follows [2, 2, 5, 58, 6, 5]. 74 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 26 writes are split as follows [0, 1, 3, 17, 2, 3]. [2025-02-08 01:07:07,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,507 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:07:07,516 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:07:07,516 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:07:07,516 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:07:07,517 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (1/1) ... [2025-02-08 01:07:07,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:07:07,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:07:07,562 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 01:07:07,572 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 01:07:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2025-02-08 01:07:07,604 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2025-02-08 01:07:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 01:07:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 01:07:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 01:07:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 01:07:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-08 01:07:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-02-08 01:07:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:07:07,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2025-02-08 01:07:07,606 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 01:07:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 01:07:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-08 01:07:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-08 01:07:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-08 01:07:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:07:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 01:07:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 01:07:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 01:07:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-08 01:07:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-08 01:07:07,612 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 01:07:07,744 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:07:07,746 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:07:07,967 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1631: havoc #t~ret120#1; [2025-02-08 01:07:07,967 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1631-1: havoc #t~mem119#1.base, #t~mem119#1.offset; [2025-02-08 01:07:07,967 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1631-2: ~status~6#1 := #t~ret120#1; [2025-02-08 01:07:07,967 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1631-3: assume { :end_inline_bounded_buf_put } true;assume -2147483648 <= #t~ret120#1 && #t~ret120#1 <= 2147483647; [2025-02-08 01:07:07,967 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1631-4: havoc bounded_buf_put_#in~bbuf#1.base, bounded_buf_put_#in~bbuf#1.offset, bounded_buf_put_#in~item#1.base, bounded_buf_put_#in~item#1.offset; [2025-02-08 01:07:07,967 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1631-5: havoc bounded_buf_put_#t~mem60#1, bounded_buf_put_#t~short61#1, bounded_buf_put_#t~ret62#1, bounded_buf_put_#t~mem63#1, bounded_buf_put_#t~mem64#1, bounded_buf_put_#t~mem65#1, bounded_buf_put_#t~mem66#1, bounded_buf_put_#t~post67#1, bounded_buf_put_#t~mem68#1, bounded_buf_put_#t~mem69#1, bounded_buf_put_#t~mem70#1, bounded_buf_put_#t~ret71#1, bounded_buf_put_#t~ret72#1, bounded_buf_put_#t~mem73#1, bounded_buf_put_#t~post74#1, bounded_buf_put_#t~mem76#1.base, bounded_buf_put_#t~mem76#1.offset, bounded_buf_put_#t~mem75#1, bounded_buf_put_#t~mem77#1, bounded_buf_put_#t~mem78#1, bounded_buf_put_#t~mem79#1, bounded_buf_put_#t~ret80#1, bounded_buf_put_~bbuf#1.base, bounded_buf_put_~bbuf#1.offset, bounded_buf_put_~item#1.base, bounded_buf_put_~item#1.offset, bounded_buf_put_~status~2#1, bounded_buf_put_~status1~1#1, bounded_buf_put_~status2~1#1; [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1631-6: #t~ret120#1 := bounded_buf_put_#res#1; [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1632: assume 0 != ~status~6#1; [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1632: assume !(0 != ~status~6#1); [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1627-1: havoc #t~post122#1; [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1627-2: ~i~1#1 := 1 + #t~post122#1; [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1627-3: #t~post122#1 := ~i~1#1; [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1636: assume true; [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1636: assume !true; [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1636-1: assume false; [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1636-1: assume !false; [2025-02-08 01:07:07,968 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1636-2: havoc #t~nondet121#1; [2025-02-08 01:07:08,239 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1654: havoc #t~mem125#1.base, #t~mem125#1.offset; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1654-1: havoc #t~mem125#1.base, #t~mem125#1.offset; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1654-2: ~ch~1#1 := (if (#t~mem125#1.base + #t~mem125#1.offset) % 256 <= 127 then (#t~mem125#1.base + #t~mem125#1.offset) % 256 else (#t~mem125#1.base + #t~mem125#1.offset) % 256 - 256); [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1654-3: SUMMARY for call #t~mem125#1.base, #t~mem125#1.offset := read~$Pointer$#1(~#temp~1#1.base, ~#temp~1#1.offset, 4); srcloc: null [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1646: havoc ~#temp~1#1.base, ~#temp~1#1.offset; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1646-1: SUMMARY for call ULTIMATE.dealloc(~#temp~1#1.base, ~#temp~1#1.offset); srcloc: null [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1647-1: havoc #t~post127#1; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1647-2: ~i~2#1 := 1 + #t~post127#1; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1647-3: #t~post127#1 := ~i~2#1; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1657: assume true; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1657: assume !true; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1657-1: assume false; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1657-1: assume !false; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1657-2: havoc #t~nondet126#1; [2025-02-08 01:07:08,240 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1649: havoc #t~ret124#1; [2025-02-08 01:07:08,241 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1649-1: havoc #t~mem123#1.base, #t~mem123#1.offset; [2025-02-08 01:07:08,241 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1649-2: ~status~7#1 := #t~ret124#1; [2025-02-08 01:07:08,241 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1649-3: assume { :end_inline_bounded_buf_get } true;assume -2147483648 <= #t~ret124#1 && #t~ret124#1 <= 2147483647; [2025-02-08 01:07:08,241 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1649-4: havoc bounded_buf_get_#in~bbuf#1.base, bounded_buf_get_#in~bbuf#1.offset, bounded_buf_get_#in~item#1.base, bounded_buf_get_#in~item#1.offset; [2025-02-08 01:07:08,241 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1649-5: havoc bounded_buf_get_#t~mem81#1, bounded_buf_get_#t~short82#1, bounded_buf_get_#t~ret83#1, bounded_buf_get_#t~mem84#1, bounded_buf_get_#t~mem85#1, bounded_buf_get_#t~mem86#1, bounded_buf_get_#t~post87#1, bounded_buf_get_#t~mem88#1, bounded_buf_get_#t~mem89#1, bounded_buf_get_#t~ret90#1, bounded_buf_get_#t~ret91#1, bounded_buf_get_#t~mem92#1, bounded_buf_get_#t~post93#1, bounded_buf_get_#t~ret94#1, bounded_buf_get_#t~ret95#1, bounded_buf_get_#t~mem96#1, bounded_buf_get_#t~mem97#1, bounded_buf_get_#t~mem99#1.base, bounded_buf_get_#t~mem99#1.offset, bounded_buf_get_#t~mem98#1, bounded_buf_get_#t~mem100#1.base, bounded_buf_get_#t~mem100#1.offset, bounded_buf_get_#t~mem101#1, bounded_buf_get_#t~mem102#1, bounded_buf_get_#t~mem103#1, bounded_buf_get_#t~ret104#1, bounded_buf_get_~bbuf#1.base, bounded_buf_get_~bbuf#1.offset, bounded_buf_get_~item#1.base, bounded_buf_get_~item#1.offset, bounded_buf_get_~status~3#1, bounded_buf_get_~status1~2#1, bounded_buf_get_~status2~2#1; [2025-02-08 01:07:08,241 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1649-6: #t~ret124#1 := bounded_buf_get_#res#1; [2025-02-08 01:07:08,241 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1650: assume 0 != ~status~7#1; [2025-02-08 01:07:08,241 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1650: assume !(0 != ~status~7#1); [2025-02-08 01:07:08,422 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1663: havoc main_~#producers~0#1.base, main_~#producers~0#1.offset; [2025-02-08 01:07:08,422 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1663-1: SUMMARY for call ULTIMATE.dealloc(main_~#producers~0#1.base, main_~#producers~0#1.offset); srcloc: null [2025-02-08 01:07:08,422 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1664: havoc main_~#consumers~0#1.base, main_~#consumers~0#1.offset; [2025-02-08 01:07:08,422 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1664-1: SUMMARY for call ULTIMATE.dealloc(main_~#consumers~0#1.base, main_~#consumers~0#1.offset); srcloc: null [2025-02-08 01:07:08,422 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1666: havoc main_~#buffer~0#1.base, main_~#buffer~0#1.offset; [2025-02-08 01:07:08,422 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1666-1: SUMMARY for call ULTIMATE.dealloc(main_~#buffer~0#1.base, main_~#buffer~0#1.offset); srcloc: null [2025-02-08 01:07:08,423 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:07:08,423 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:07:08,719 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:07:08,719 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:07:08,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:07:08 BoogieIcfgContainer [2025-02-08 01:07:08,720 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:07:08,722 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:07:08,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:07:08,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:07:08,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:07:06" (1/3) ... [2025-02-08 01:07:08,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5964faf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:07:08, skipping insertion in model container [2025-02-08 01:07:08,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:07:07" (2/3) ... [2025-02-08 01:07:08,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5964faf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:07:08, skipping insertion in model container [2025-02-08 01:07:08,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:07:08" (3/3) ... [2025-02-08 01:07:08,727 INFO L128 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2025-02-08 01:07:08,741 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:07:08,742 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG bounded_buffer.i that has 3 procedures, 83 locations, 1 initial locations, 13 loop locations, and 3 error locations. [2025-02-08 01:07:08,743 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:07:08,830 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-08 01:07:08,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 115 transitions, 250 flow [2025-02-08 01:07:08,937 INFO L124 PetriNetUnfolderBase]: 70/258 cut-off events. [2025-02-08 01:07:08,973 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-08 01:07:08,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 258 events. 70/258 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1127 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 136. Up to 16 conditions per place. [2025-02-08 01:07:08,984 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 115 transitions, 250 flow [2025-02-08 01:07:08,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 110 transitions, 240 flow [2025-02-08 01:07:08,999 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:07:09,011 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;@2fb5cf3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:07:09,014 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 01:07:09,024 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:07:09,024 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2025-02-08 01:07:09,024 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:07:09,025 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:07:09,025 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:07:09,026 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 01:07:09,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:07:09,031 INFO L85 PathProgramCache]: Analyzing trace with hash -381246809, now seen corresponding path program 1 times [2025-02-08 01:07:09,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:07:09,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119178007] [2025-02-08 01:07:09,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:07:09,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:07:09,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 01:07:09,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 01:07:09,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:07:09,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 01:07:09,233 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 01:07:09,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 01:07:09,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 01:07:09,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:07:09,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 01:07:09,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 01:07:09,333 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 01:07:09,334 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2025-02-08 01:07:09,336 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2025-02-08 01:07:09,336 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-08 01:07:09,336 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-02-08 01:07:09,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:07:09,337 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 01:07:09,343 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 01:07:09,343 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 01:07:09,424 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-02-08 01:07:09,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 179 transitions, 402 flow [2025-02-08 01:07:09,591 INFO L124 PetriNetUnfolderBase]: 265/881 cut-off events. [2025-02-08 01:07:09,591 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2025-02-08 01:07:09,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 970 conditions, 881 events. 265/881 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5241 event pairs, 2 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 511. Up to 64 conditions per place. [2025-02-08 01:07:09,596 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 179 transitions, 402 flow [2025-02-08 01:07:09,603 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 174 transitions, 392 flow [2025-02-08 01:07:09,603 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:07:09,604 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;@2fb5cf3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:07:09,604 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 01:07:09,615 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:07:09,615 INFO L124 PetriNetUnfolderBase]: 5/86 cut-off events. [2025-02-08 01:07:09,615 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-02-08 01:07:09,615 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:07:09,615 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:07:09,615 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:07:09,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:07:09,616 INFO L85 PathProgramCache]: Analyzing trace with hash -298735898, now seen corresponding path program 1 times [2025-02-08 01:07:09,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:07:09,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033699125] [2025-02-08 01:07:09,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:07:09,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:07:09,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 01:07:09,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 01:07:09,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:07:09,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:07:09,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:07:09,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:07:09,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033699125] [2025-02-08 01:07:09,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033699125] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:07:09,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:07:09,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:07:09,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018922442] [2025-02-08 01:07:09,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:07:09,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:07:09,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:07:09,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:07:09,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:07:09,986 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 179 [2025-02-08 01:07:09,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 174 transitions, 392 flow. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:07:09,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:07:09,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 179 [2025-02-08 01:07:09,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand