./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-2_3-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-races/race-2_3-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 17:23:03,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 17:23:03,550 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 17:23:03,553 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 17:23:03,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 17:23:03,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 17:23:03,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 17:23:03,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 17:23:03,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 17:23:03,573 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 17:23:03,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 17:23:03,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 17:23:03,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 17:23:03,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 17:23:03,574 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 17:23:03,574 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 17:23:03,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 17:23:03,574 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 17:23:03,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 17:23:03,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 17:23:03,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 17:23:03,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 17:23:03,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 17:23:03,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 17:23:03,575 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 17:23:03,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 17:23:03,575 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 17:23:03,575 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 17:23:03,575 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 17:23:03,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 17:23:03,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 17:23:03,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 17:23:03,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:23:03,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 17:23:03,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 17:23:03,575 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 17:23:03,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 17:23:03,576 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 17:23:03,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 17:23:03,576 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 17:23:03,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 17:23:03,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 17:23:03,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 17:23:03,576 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/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 -> 11cd6df53312b6388eb67fa3ddad4ddfe9675663ccf0a1507d8b60fd9abceccc [2025-03-08 17:23:03,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 17:23:03,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 17:23:03,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 17:23:03,799 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 17:23:03,799 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 17:23:03,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2025-03-08 17:23:04,974 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e10b7639/1851cadb11fb4928bbdb1536eca317df/FLAG375f916ef [2025-03-08 17:23:05,334 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 17:23:05,335 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_3-container_of.i [2025-03-08 17:23:05,355 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e10b7639/1851cadb11fb4928bbdb1536eca317df/FLAG375f916ef [2025-03-08 17:23:05,549 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e10b7639/1851cadb11fb4928bbdb1536eca317df [2025-03-08 17:23:05,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 17:23:05,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 17:23:05,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 17:23:05,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 17:23:05,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 17:23:05,556 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:23:05" (1/1) ... [2025-03-08 17:23:05,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4717e1ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:05, skipping insertion in model container [2025-03-08 17:23:05,557 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:23:05" (1/1) ... [2025-03-08 17:23:05,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 17:23:05,925 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[186287,186300] [2025-03-08 17:23:05,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:23:05,977 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 17:23:06,016 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_3-container_of.i[186287,186300] [2025-03-08 17:23:06,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 17:23:06,057 INFO L204 MainTranslator]: Completed translation [2025-03-08 17:23:06,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06 WrapperNode [2025-03-08 17:23:06,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 17:23:06,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 17:23:06,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 17:23:06,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 17:23:06,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,090 INFO L138 Inliner]: procedures = 248, calls = 55, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 136 [2025-03-08 17:23:06,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 17:23:06,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 17:23:06,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 17:23:06,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 17:23:06,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,103 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,113 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 15, 2]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 8, 2]. [2025-03-08 17:23:06,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,122 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 17:23:06,137 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 17:23:06,137 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 17:23:06,137 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 17:23:06,138 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (1/1) ... [2025-03-08 17:23:06,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 17:23:06,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 17:23:06,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 17:23:06,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 17:23:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-03-08 17:23:06,182 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-03-08 17:23:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-08 17:23:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 17:23:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 17:23:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-08 17:23:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-08 17:23:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 17:23:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 17:23:06,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 17:23:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 17:23:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 17:23:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 17:23:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-08 17:23:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 17:23:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-08 17:23:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-08 17:23:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-08 17:23:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 17:23:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 17:23:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 17:23:06,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 17:23:06,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 17:23:06,185 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 17:23:06,359 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 17:23:06,361 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 17:23:06,561 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 17:23:06,561 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 17:23:06,654 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 17:23:06,656 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 17:23:06,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:23:06 BoogieIcfgContainer [2025-03-08 17:23:06,656 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 17:23:06,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 17:23:06,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 17:23:06,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 17:23:06,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:23:05" (1/3) ... [2025-03-08 17:23:06,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61794933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:23:06, skipping insertion in model container [2025-03-08 17:23:06,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:23:06" (2/3) ... [2025-03-08 17:23:06,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61794933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:23:06, skipping insertion in model container [2025-03-08 17:23:06,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:23:06" (3/3) ... [2025-03-08 17:23:06,666 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2025-03-08 17:23:06,676 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 17:23:06,677 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_3-container_of.i that has 2 procedures, 48 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-03-08 17:23:06,677 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 17:23:06,722 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-08 17:23:06,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 63 transitions, 140 flow [2025-03-08 17:23:06,796 INFO L124 PetriNetUnfolderBase]: 8/76 cut-off events. [2025-03-08 17:23:06,799 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-08 17:23:06,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 76 events. 8/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 144 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 4 conditions per place. [2025-03-08 17:23:06,803 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 63 transitions, 140 flow [2025-03-08 17:23:06,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 56 transitions, 124 flow [2025-03-08 17:23:06,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 17:23:06,820 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;@6879e6ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 17:23:06,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-08 17:23:06,828 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 17:23:06,828 INFO L124 PetriNetUnfolderBase]: 1/19 cut-off events. [2025-03-08 17:23:06,828 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 17:23:06,829 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:23:06,829 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:23:06,829 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-08 17:23:06,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:23:06,833 INFO L85 PathProgramCache]: Analyzing trace with hash 670988499, now seen corresponding path program 1 times [2025-03-08 17:23:06,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:23:06,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208758932] [2025-03-08 17:23:06,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:23:06,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:23:06,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-08 17:23:07,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-08 17:23:07,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:23:07,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:23:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:23:07,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:23:07,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208758932] [2025-03-08 17:23:07,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208758932] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:23:07,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:23:07,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 17:23:07,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584490011] [2025-03-08 17:23:07,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:23:07,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 17:23:07,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:23:07,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 17:23:07,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 17:23:07,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 63 [2025-03-08 17:23:07,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 56 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2025-03-08 17:23:07,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:23:07,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 63 [2025-03-08 17:23:07,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:23:07,790 INFO L124 PetriNetUnfolderBase]: 1534/2570 cut-off events. [2025-03-08 17:23:07,791 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-03-08 17:23:07,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5080 conditions, 2570 events. 1534/2570 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 13492 event pairs, 1309 based on Foata normal form. 2/2425 useless extension candidates. Maximal degree in co-relation 4963. Up to 2124 conditions per place. [2025-03-08 17:23:07,811 INFO L140 encePairwiseOnDemand]: 54/63 looper letters, 52 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2025-03-08 17:23:07,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 65 transitions, 258 flow [2025-03-08 17:23:07,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 17:23:07,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 17:23:07,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2025-03-08 17:23:07,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4973544973544973 [2025-03-08 17:23:07,825 INFO L175 Difference]: Start difference. First operand has 58 places, 56 transitions, 124 flow. Second operand 3 states and 94 transitions. [2025-03-08 17:23:07,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 65 transitions, 258 flow [2025-03-08 17:23:07,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 65 transitions, 250 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-08 17:23:07,838 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 118 flow [2025-03-08 17:23:07,840 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2025-03-08 17:23:07,843 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2025-03-08 17:23:07,845 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 118 flow [2025-03-08 17:23:07,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2025-03-08 17:23:07,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:23:07,845 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:23:07,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 17:23:07,846 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-08 17:23:07,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:23:07,846 INFO L85 PathProgramCache]: Analyzing trace with hash 574908619, now seen corresponding path program 1 times [2025-03-08 17:23:07,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:23:07,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642214685] [2025-03-08 17:23:07,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:23:07,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:23:07,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-08 17:23:07,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-08 17:23:07,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:23:07,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:23:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:23:08,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:23:08,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642214685] [2025-03-08 17:23:08,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642214685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:23:08,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:23:08,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 17:23:08,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131374004] [2025-03-08 17:23:08,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:23:08,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 17:23:08,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:23:08,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 17:23:08,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 17:23:08,100 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 63 [2025-03-08 17:23:08,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2025-03-08 17:23:08,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:23:08,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 63 [2025-03-08 17:23:08,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:23:08,439 INFO L124 PetriNetUnfolderBase]: 1782/3058 cut-off events. [2025-03-08 17:23:08,439 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2025-03-08 17:23:08,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6196 conditions, 3058 events. 1782/3058 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 16923 event pairs, 1209 based on Foata normal form. 120/3033 useless extension candidates. Maximal degree in co-relation 3606. Up to 2068 conditions per place. [2025-03-08 17:23:08,455 INFO L140 encePairwiseOnDemand]: 52/63 looper letters, 62 selfloop transitions, 8 changer transitions 4/81 dead transitions. [2025-03-08 17:23:08,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 81 transitions, 328 flow [2025-03-08 17:23:08,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 17:23:08,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-08 17:23:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2025-03-08 17:23:08,457 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2025-03-08 17:23:08,458 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 118 flow. Second operand 4 states and 120 transitions. [2025-03-08 17:23:08,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 81 transitions, 328 flow [2025-03-08 17:23:08,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 81 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-08 17:23:08,462 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 148 flow [2025-03-08 17:23:08,463 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2025-03-08 17:23:08,464 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -1 predicate places. [2025-03-08 17:23:08,464 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 148 flow [2025-03-08 17:23:08,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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) [2025-03-08 17:23:08,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:23:08,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:23:08,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 17:23:08,465 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-08 17:23:08,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:23:08,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1159088037, now seen corresponding path program 1 times [2025-03-08 17:23:08,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:23:08,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683080348] [2025-03-08 17:23:08,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:23:08,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:23:08,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-08 17:23:08,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-08 17:23:08,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:23:08,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:23:08,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:23:08,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:23:08,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683080348] [2025-03-08 17:23:08,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683080348] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:23:08,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:23:08,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 17:23:08,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141657202] [2025-03-08 17:23:08,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:23:08,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 17:23:08,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:23:08,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 17:23:08,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 17:23:08,643 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 63 [2025-03-08 17:23:08,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 52 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2025-03-08 17:23:08,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:23:08,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 63 [2025-03-08 17:23:08,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:23:08,970 INFO L124 PetriNetUnfolderBase]: 1808/3194 cut-off events. [2025-03-08 17:23:08,970 INFO L125 PetriNetUnfolderBase]: For 646/646 co-relation queries the response was YES. [2025-03-08 17:23:08,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7015 conditions, 3194 events. 1808/3194 cut-off events. For 646/646 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 19018 event pairs, 933 based on Foata normal form. 0/3012 useless extension candidates. Maximal degree in co-relation 5928. Up to 2152 conditions per place. [2025-03-08 17:23:08,984 INFO L140 encePairwiseOnDemand]: 55/63 looper letters, 52 selfloop transitions, 7 changer transitions 0/71 dead transitions. [2025-03-08 17:23:08,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 312 flow [2025-03-08 17:23:08,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 17:23:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 17:23:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2025-03-08 17:23:08,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5978835978835979 [2025-03-08 17:23:08,985 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 148 flow. Second operand 3 states and 113 transitions. [2025-03-08 17:23:08,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 312 flow [2025-03-08 17:23:08,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 71 transitions, 299 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-08 17:23:08,988 INFO L231 Difference]: Finished difference. Result has 58 places, 58 transitions, 197 flow [2025-03-08 17:23:08,988 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=58, PETRI_TRANSITIONS=58} [2025-03-08 17:23:08,989 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 0 predicate places. [2025-03-08 17:23:08,989 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 58 transitions, 197 flow [2025-03-08 17:23:08,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2025-03-08 17:23:08,989 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:23:08,989 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:23:08,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 17:23:08,989 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-08 17:23:08,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:23:08,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1571991197, now seen corresponding path program 1 times [2025-03-08 17:23:08,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:23:08,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495330768] [2025-03-08 17:23:08,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:23:08,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:23:09,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-08 17:23:09,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-08 17:23:09,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:23:09,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 17:23:09,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 17:23:09,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 17:23:09,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495330768] [2025-03-08 17:23:09,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495330768] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 17:23:09,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 17:23:09,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 17:23:09,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429175092] [2025-03-08 17:23:09,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 17:23:09,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 17:23:09,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 17:23:09,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 17:23:09,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 17:23:09,092 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 63 [2025-03-08 17:23:09,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 58 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2025-03-08 17:23:09,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 17:23:09,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 63 [2025-03-08 17:23:09,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 17:23:09,377 INFO L124 PetriNetUnfolderBase]: 2166/3817 cut-off events. [2025-03-08 17:23:09,377 INFO L125 PetriNetUnfolderBase]: For 2497/2497 co-relation queries the response was YES. [2025-03-08 17:23:09,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9706 conditions, 3817 events. 2166/3817 cut-off events. For 2497/2497 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 23346 event pairs, 1183 based on Foata normal form. 0/3701 useless extension candidates. Maximal degree in co-relation 1059. Up to 2585 conditions per place. [2025-03-08 17:23:09,393 INFO L140 encePairwiseOnDemand]: 55/63 looper letters, 56 selfloop transitions, 12 changer transitions 0/80 dead transitions. [2025-03-08 17:23:09,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 80 transitions, 425 flow [2025-03-08 17:23:09,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 17:23:09,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 17:23:09,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2025-03-08 17:23:09,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2025-03-08 17:23:09,395 INFO L175 Difference]: Start difference. First operand has 58 places, 58 transitions, 197 flow. Second operand 3 states and 112 transitions. [2025-03-08 17:23:09,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 80 transitions, 425 flow [2025-03-08 17:23:09,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 80 transitions, 385 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-03-08 17:23:09,400 INFO L231 Difference]: Finished difference. Result has 60 places, 68 transitions, 291 flow [2025-03-08 17:23:09,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=291, PETRI_PLACES=60, PETRI_TRANSITIONS=68} [2025-03-08 17:23:09,400 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 2 predicate places. [2025-03-08 17:23:09,400 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 68 transitions, 291 flow [2025-03-08 17:23:09,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2025-03-08 17:23:09,401 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 17:23:09,401 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 17:23:09,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 17:23:09,401 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-08 17:23:09,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 17:23:09,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1083055711, now seen corresponding path program 1 times [2025-03-08 17:23:09,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 17:23:09,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134223458] [2025-03-08 17:23:09,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 17:23:09,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 17:23:09,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-08 17:23:09,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-08 17:23:09,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:23:09,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 17:23:09,429 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 17:23:09,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-08 17:23:09,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-08 17:23:09,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 17:23:09,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 17:23:09,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 17:23:09,462 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 17:23:09,462 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2025-03-08 17:23:09,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2025-03-08 17:23:09,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2025-03-08 17:23:09,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2025-03-08 17:23:09,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2025-03-08 17:23:09,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2025-03-08 17:23:09,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2025-03-08 17:23:09,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2025-03-08 17:23:09,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 17:23:09,468 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-08 17:23:09,486 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-08 17:23:09,486 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 17:23:09,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 05:23:09 BasicIcfg [2025-03-08 17:23:09,489 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 17:23:09,490 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 17:23:09,490 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 17:23:09,490 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 17:23:09,491 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:23:06" (3/4) ... [2025-03-08 17:23:09,491 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-08 17:23:09,535 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 8. [2025-03-08 17:23:09,570 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 17:23:09,570 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 17:23:09,570 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 17:23:09,571 INFO L158 Benchmark]: Toolchain (without parser) took 4019.10ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 118.2MB in the beginning and 195.8MB in the end (delta: -77.6MB). Peak memory consumption was 116.2MB. Max. memory is 16.1GB. [2025-03-08 17:23:09,571 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 17:23:09,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.33ms. Allocated memory is still 167.8MB. Free memory was 118.2MB in the beginning and 86.8MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-08 17:23:09,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.07ms. Allocated memory is still 167.8MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 17:23:09,572 INFO L158 Benchmark]: Boogie Preprocessor took 45.75ms. Allocated memory is still 167.8MB. Free memory was 84.7MB in the beginning and 81.6MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 17:23:09,572 INFO L158 Benchmark]: IcfgBuilder took 519.24ms. Allocated memory is still 167.8MB. Free memory was 81.6MB in the beginning and 41.7MB in the end (delta: 39.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-08 17:23:09,572 INFO L158 Benchmark]: TraceAbstraction took 2831.49ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 40.6MB in the beginning and 204.3MB in the end (delta: -163.7MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2025-03-08 17:23:09,572 INFO L158 Benchmark]: Witness Printer took 80.15ms. Allocated memory is still 360.7MB. Free memory was 204.3MB in the beginning and 195.8MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 17:23:09,573 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.33ms. Allocated memory is still 167.8MB. Free memory was 118.2MB in the beginning and 86.8MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.07ms. Allocated memory is still 167.8MB. Free memory was 86.8MB in the beginning and 84.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.75ms. Allocated memory is still 167.8MB. Free memory was 84.7MB in the beginning and 81.6MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 519.24ms. Allocated memory is still 167.8MB. Free memory was 81.6MB in the beginning and 41.7MB in the end (delta: 39.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2831.49ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 40.6MB in the beginning and 204.3MB in the end (delta: -163.7MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * Witness Printer took 80.15ms. Allocated memory is still 360.7MB. Free memory was 204.3MB in the beginning and 195.8MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3887]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={4:24}, \old(data)={4:0}, d={4:24}, data={4:0}, res=0, t1=-1, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={4:24}, \old(data)={4:0}, arg={4:24}, d={4:24}, data={4:0}, data={4:0}, dev={4:24}, res=0, t1=-1, t2=0] [L3933] 0 data->shared.a = 3 VAL [\old(arg)={4:24}, arg={4:24}, data={4:0}, dev={4:24}, t1=-1, t2=0] [L3907] 1 data->shared.a = 1 VAL [\old(arg)={4:24}, arg={4:24}, data={4:0}, dev={4:24}, t1=-1, t2=0] [L3936] 0 data->shared.b = 3 VAL [\old(arg)={4:24}, arg={4:24}, data={4:0}, dev={4:24}, t1=-1, t2=0] [L3939] EXPR 0 data->shared.a [L3939] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] 0 reach_error() VAL [\old(arg)={4:24}, \old(expression)=0, arg={4:24}, data={4:0}, dev={4:24}, expression=0, t1=-1, t2=0] - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 3930]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 68 locations, 75 edges, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 107 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 416 IncrementalHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 10 mSDtfsCounter, 416 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=4, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-08 17:23:09,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE