/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 19:38:04,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 19:38:05,001 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 19:38:05,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 19:38:05,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 19:38:05,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 19:38:05,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 19:38:05,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 19:38:05,027 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 19:38:05,027 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 19:38:05,027 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 19:38:05,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 19:38:05,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 19:38:05,028 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 19:38:05,028 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 19:38:05,029 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:38:05,029 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:38:05,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 19:38:05,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 19:38:05,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 19:38:05,030 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 19:38:05,030 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 19:38:05,030 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET [2025-04-13 19:38:05,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 19:38:05,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 19:38:05,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 19:38:05,268 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 19:38:05,269 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 19:38:05,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2025-04-13 19:38:06,599 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df6e4b856/c913876569b349c29f3de9a87cdb2528/FLAGb13074c9e [2025-04-13 19:38:06,871 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 19:38:06,871 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2025-04-13 19:38:06,896 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df6e4b856/c913876569b349c29f3de9a87cdb2528/FLAGb13074c9e [2025-04-13 19:38:07,649 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df6e4b856/c913876569b349c29f3de9a87cdb2528 [2025-04-13 19:38:07,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 19:38:07,654 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 19:38:07,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 19:38:07,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 19:38:07,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 19:38:07,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:38:07" (1/1) ... [2025-04-13 19:38:07,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c74cf24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:07, skipping insertion in model container [2025-04-13 19:38:07,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:38:07" (1/1) ... [2025-04-13 19:38:07,697 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 19:38:07,973 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[186294,186307] [2025-04-13 19:38:08,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:38:08,017 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 19:38:08,067 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[186294,186307] [2025-04-13 19:38:08,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:38:08,123 INFO L204 MainTranslator]: Completed translation [2025-04-13 19:38:08,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08 WrapperNode [2025-04-13 19:38:08,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 19:38:08,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 19:38:08,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 19:38:08,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 19:38:08,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,153 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,177 INFO L138 Inliner]: procedures = 246, calls = 43, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 127 [2025-04-13 19:38:08,177 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 19:38:08,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 19:38:08,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 19:38:08,178 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 19:38:08,186 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,191 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,206 INFO L175 MemorySlicer]: Split 17 memory accesses to 3 slices as follows [2, 2, 13]. 76 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 2, 6]. [2025-04-13 19:38:08,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,214 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,223 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 19:38:08,224 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 19:38:08,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 19:38:08,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 19:38:08,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (1/1) ... [2025-04-13 19:38:08,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:38:08,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:38:08,270 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) [2025-04-13 19:38:08,272 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 [2025-04-13 19:38:08,291 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-04-13 19:38:08,291 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-04-13 19:38:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 19:38:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-13 19:38:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-13 19:38:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 19:38:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 19:38:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 19:38:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 19:38:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 19:38:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 19:38:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 19:38:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 19:38:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-13 19:38:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-13 19:38:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-13 19:38:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 19:38:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 19:38:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 19:38:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 19:38:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 19:38:08,294 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 19:38:08,491 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 19:38:08,493 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 19:38:08,698 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 19:38:08,698 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 19:38:08,699 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 19:38:08,902 WARN L179 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 19:38:08,925 WARN L179 LargeBlockEncoding]: Complex 3:3 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 19:38:08,958 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 19:38:08,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:38:08 BoogieIcfgContainer [2025-04-13 19:38:08,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 19:38:08,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 19:38:08,961 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 19:38:08,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 19:38:08,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:38:07" (1/3) ... [2025-04-13 19:38:08,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4870fb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:38:08, skipping insertion in model container [2025-04-13 19:38:08,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:08" (2/3) ... [2025-04-13 19:38:08,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4870fb51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:38:08, skipping insertion in model container [2025-04-13 19:38:08,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:38:08" (3/3) ... [2025-04-13 19:38:08,967 INFO L128 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2025-04-13 19:38:08,977 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 19:38:08,978 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-3_2-container_of-global.i that has 2 procedures, 22 locations, 27 edges, 1 initial locations, 0 loop locations, and 6 error locations. [2025-04-13 19:38:08,978 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 19:38:09,030 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 19:38:09,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 34 transitions, 82 flow [2025-04-13 19:38:09,091 INFO L116 PetriNetUnfolderBase]: 3/32 cut-off events. [2025-04-13 19:38:09,093 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 19:38:09,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 32 events. 3/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 54 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 13. Up to 3 conditions per place. [2025-04-13 19:38:09,096 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 34 transitions, 82 flow [2025-04-13 19:38:09,098 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 28 transitions, 68 flow [2025-04-13 19:38:09,106 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 19:38:09,118 INFO L340 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;@c81b832, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 19:38:09,118 INFO L341 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-04-13 19:38:09,122 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 19:38:09,122 INFO L116 PetriNetUnfolderBase]: 0/0 cut-off events. [2025-04-13 19:38:09,122 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:38:09,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:38:09,123 INFO L206 CegarLoopForPetriNet]: trace histogram [1] [2025-04-13 19:38:09,124 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-04-13 19:38:09,129 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:38:09,130 INFO L85 PathProgramCache]: Analyzing trace with hash 458, now seen corresponding path program 1 times [2025-04-13 19:38:09,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:38:09,135 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121764573] [2025-04-13 19:38:09,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:38:09,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:38:09,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-13 19:38:09,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-13 19:38:09,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:38:09,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:38:09,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:38:09,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:38:09,496 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121764573] [2025-04-13 19:38:09,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121764573] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:38:09,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:38:09,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2025-04-13 19:38:09,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789688686] [2025-04-13 19:38:09,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:38:09,503 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 19:38:09,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:38:09,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 19:38:09,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 19:38:09,522 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 34 [2025-04-13 19:38:09,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 28 transitions, 68 flow. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2025-04-13 19:38:09,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:38:09,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 34 [2025-04-13 19:38:09,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:38:09,672 INFO L116 PetriNetUnfolderBase]: 105/205 cut-off events. [2025-04-13 19:38:09,672 INFO L117 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-04-13 19:38:09,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 205 events. 105/205 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 604 event pairs, 105 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 368. Up to 206 conditions per place. [2025-04-13 19:38:09,676 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 20 selfloop transitions, 0 changer transitions 0/20 dead transitions. [2025-04-13 19:38:09,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 20 transitions, 92 flow [2025-04-13 19:38:09,678 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 19:38:09,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-13 19:38:09,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 32 transitions. [2025-04-13 19:38:09,687 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2025-04-13 19:38:09,688 INFO L175 Difference]: Start difference. First operand has 31 places, 28 transitions, 68 flow. Second operand 2 states and 32 transitions. [2025-04-13 19:38:09,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 20 transitions, 92 flow [2025-04-13 19:38:09,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 84 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-04-13 19:38:09,694 INFO L231 Difference]: Finished difference. Result has 24 places, 20 transitions, 44 flow [2025-04-13 19:38:09,696 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=24, PETRI_TRANSITIONS=20} [2025-04-13 19:38:09,700 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2025-04-13 19:38:09,700 INFO L485 AbstractCegarLoop]: Abstraction has has 24 places, 20 transitions, 44 flow [2025-04-13 19:38:09,700 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2025-04-13 19:38:09,700 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:38:09,700 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:38:09,701 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 19:38:09,701 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-04-13 19:38:09,701 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:38:09,701 INFO L85 PathProgramCache]: Analyzing trace with hash 627449131, now seen corresponding path program 1 times [2025-04-13 19:38:09,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:38:09,701 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594651169] [2025-04-13 19:38:09,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:38:09,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:38:09,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-13 19:38:09,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-13 19:38:09,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:38:09,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:38:10,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:38:10,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:38:10,418 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594651169] [2025-04-13 19:38:10,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594651169] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:38:10,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:38:10,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 19:38:10,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450094511] [2025-04-13 19:38:10,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:38:10,419 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-13 19:38:10,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:38:10,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-13 19:38:10,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-13 19:38:10,420 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 34 [2025-04-13 19:38:10,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 44 flow. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2025-04-13 19:38:10,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:38:10,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 34 [2025-04-13 19:38:10,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:38:10,606 INFO L116 PetriNetUnfolderBase]: 124/249 cut-off events. [2025-04-13 19:38:10,607 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-13 19:38:10,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 249 events. 124/249 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 846 event pairs, 15 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 505. Up to 123 conditions per place. [2025-04-13 19:38:10,611 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 36 selfloop transitions, 5 changer transitions 0/41 dead transitions. [2025-04-13 19:38:10,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 41 transitions, 171 flow [2025-04-13 19:38:10,612 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 19:38:10,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-04-13 19:38:10,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 52 transitions. [2025-04-13 19:38:10,613 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.3058823529411765 [2025-04-13 19:38:10,613 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 44 flow. Second operand 5 states and 52 transitions. [2025-04-13 19:38:10,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 41 transitions, 171 flow [2025-04-13 19:38:10,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 41 transitions, 171 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-13 19:38:10,615 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 71 flow [2025-04-13 19:38:10,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=71, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2025-04-13 19:38:10,615 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2025-04-13 19:38:10,616 INFO L485 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 71 flow [2025-04-13 19:38:10,617 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 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) [2025-04-13 19:38:10,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:38:10,618 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:38:10,618 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 19:38:10,618 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-04-13 19:38:10,619 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:38:10,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1030423848, now seen corresponding path program 1 times [2025-04-13 19:38:10,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:38:10,619 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583128588] [2025-04-13 19:38:10,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:38:10,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:38:10,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-13 19:38:10,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-13 19:38:10,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:38:10,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 19:38:10,663 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-13 19:38:10,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-13 19:38:10,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-13 19:38:10,695 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:38:10,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 19:38:10,722 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-13 19:38:10,722 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-13 19:38:10,723 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2025-04-13 19:38:10,724 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2025-04-13 19:38:10,724 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2025-04-13 19:38:10,724 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2025-04-13 19:38:10,724 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2025-04-13 19:38:10,725 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2025-04-13 19:38:10,725 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2025-04-13 19:38:10,725 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2025-04-13 19:38:10,725 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 19:38:10,725 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-13 19:38:10,785 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 19:38:10,785 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 19:38:10,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:38:10 BasicIcfg [2025-04-13 19:38:10,791 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 19:38:10,792 INFO L158 Benchmark]: Toolchain (without parser) took 3139.04ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 67.7MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. [2025-04-13 19:38:10,792 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:38:10,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 470.13ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 81.7MB in the end (delta: 34.2MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2025-04-13 19:38:10,793 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.10ms. Allocated memory is still 167.8MB. Free memory was 81.7MB in the beginning and 79.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:38:10,793 INFO L158 Benchmark]: Boogie Preprocessor took 45.65ms. Allocated memory is still 167.8MB. Free memory was 79.1MB in the beginning and 75.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 19:38:10,793 INFO L158 Benchmark]: RCFGBuilder took 735.15ms. Allocated memory is still 167.8MB. Free memory was 75.6MB in the beginning and 93.2MB in the end (delta: -17.6MB). Peak memory consumption was 60.6MB. Max. memory is 8.0GB. [2025-04-13 19:38:10,793 INFO L158 Benchmark]: TraceAbstraction took 1829.81ms. Allocated memory is still 167.8MB. Free memory was 92.3MB in the beginning and 67.7MB in the end (delta: 24.6MB). Peak memory consumption was 21.2MB. Max. memory is 8.0GB. [2025-04-13 19:38:10,794 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 470.13ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 81.7MB in the end (delta: 34.2MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.10ms. Allocated memory is still 167.8MB. Free memory was 81.7MB in the beginning and 79.1MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 45.65ms. Allocated memory is still 167.8MB. Free memory was 79.1MB in the beginning and 75.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 735.15ms. Allocated memory is still 167.8MB. Free memory was 75.6MB in the beginning and 93.2MB in the end (delta: -17.6MB). Peak memory consumption was 60.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1829.81ms. Allocated memory is still 167.8MB. Free memory was 92.3MB in the beginning and 67.7MB in the end (delta: 24.6MB). Peak memory consumption was 21.2MB. Max. memory is 8.0GB. * 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; [L3901] 0 struct device *my_dev; [L3953] CALL, EXPR 0 my_drv_init() [L3947] 0 return 0; [L3953] RET, EXPR 0 my_drv_init() [L3953] 0 int ret = my_drv_init(); [L3954] COND TRUE 0 ret==0 [L3955] 0 int probe_ret; [L3956] 0 struct my_data data; [L3957] CALL, EXPR 0 my_drv_probe(&data) [L3923] 0 data->shared.a = 0 [L3924] 0 data->shared.b = 0 [L3925] EXPR 0 data->shared.a [L3925] CALL 0 ldv_assert(data->shared.a==0) [L3887] COND FALSE 0 !(!expression) [L3925] RET 0 ldv_assert(data->shared.a==0) [L3926] EXPR 0 data->shared.b [L3926] CALL 0 ldv_assert(data->shared.b==0) [L3887] COND FALSE 0 !(!expression) [L3926] RET 0 ldv_assert(data->shared.b==0) [L3927] 0 int res = __VERIFIER_nondet_int(); [L3928] COND FALSE 0 !(\read(res)) [L3931] 0 my_dev = &data->dev [L3933] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [\at(arg, Pre)={0:0}, \at(data, Pre)={5:0}, data={5:0}, my_dev={5:24}, res=0, t1=-1, t2=0] [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3908] 1 data->shared.a = 1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={5:0}, my_dev={5:24}, t1=-1, t2=0] [L3934] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [\at(arg, Pre)={0:0}, \at(data, Pre)={5:0}, arg={0:0}, data={5:0}, my_dev={5:24}, res=0, t1=-1, t2=0] [L3911] EXPR 1 data->shared.b [L3911] 1 int lb = data->shared.b; [L3935] 0 return 0; [L3957] RET, EXPR 0 my_drv_probe(&data) [L3957] 0 probe_ret = my_drv_probe(&data) [L3958] COND TRUE 0 probe_ret==0 [L3959] CALL 0 my_drv_disconnect(&data) [L3941] 0 void *status; VAL [\at(arg, Pre)={0:0}, \at(data, Pre)={5:0}, arg={0:0}, data={5:0}, data={5:0}, lb=0, my_dev={5:24}, status={3:0}, t1=-1, t2=0] [L3903] 2 struct my_data *data; [L3904] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); [L3904] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3908] 2 data->shared.a = 1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={5:0}, lb=0, my_dev={5:24}, t1=-1, t2=0] [L3911] EXPR 2 data->shared.b [L3911] 2 int lb = data->shared.b; [L3914] 2 data->shared.b = lb + 1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, data={5:0}, lb=0, my_dev={5:24}, t1=-1, t2=0] [L3917] 2 return 0; [L3914] 1 data->shared.b = lb + 1 VAL [\at(arg, Pre)={0:0}, \result={0:0}, arg={0:0}, data={5:0}, lb=0, my_dev={5:24}, t1=-1, t2=0] [L3917] 1 return 0; [L3942] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\at(arg, Pre)={0:0}, \at(data, Pre)={5:0}, \result={0:0}, arg={0:0}, data={5:0}, data={5:0}, lb=0, my_dev={5:24}, status={3:0}, t1=-1, t2=0] [L3943] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\at(arg, Pre)={0:0}, \at(data, Pre)={5:0}, \result={0:0}, arg={0:0}, data={5:0}, data={5:0}, lb=0, my_dev={5:24}, status={3:0}, t1=-1, t2=0] [L3959] RET 0 my_drv_disconnect(&data) [L3960] EXPR 0 data.shared.a [L3960] CALL 0 ldv_assert(data.shared.a==1) [L3887] COND FALSE 0 !(!expression) [L3960] RET 0 ldv_assert(data.shared.a==1) [L3961] EXPR 0 data.shared.b [L3961] CALL 0 ldv_assert(data.shared.b==2) [L3887] COND TRUE 0 !expression [L3887] 0 reach_error() VAL [\at(arg, Pre)={0:0}, \at(expression, Pre)=0, \result={0:0}, arg={0:0}, data={5:0}, expression=0, lb=0, my_dev={5:24}, 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: 3933]: 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: 3934]: 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, 36 locations, 43 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: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 0 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=2, InterpolantAutomatonStates: 7, 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, 0.8s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2025-04-13 19:38:10,810 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...