/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 03:59:41,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 03:59:41,513 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-27 03:59:41,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 03:59:41,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 03:59:41,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 03:59:41,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 03:59:41,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 03:59:41,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 03:59:41,560 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 03:59:41,561 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 03:59:41,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 03:59:41,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 03:59:41,561 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 03:59:41,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 03:59:41,562 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 03:59:41,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 03:59:41,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 03:59:41,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 03:59:41,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 03:59:41,563 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 03:59:41,564 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 03:59:41,565 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 03:59:41,565 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 03:59:41,565 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 03:59:41,566 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 03:59:41,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 03:59:41,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:59:41,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 03:59:41,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 03:59:41,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 03:59:41,567 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 03:59:41,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 03:59:41,568 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 03:59:41,568 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 03:59:41,568 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 03:59:41,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 03:59:41,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 03:59:41,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 03:59:41,870 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 03:59:41,870 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 03:59:41,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-08-27 03:59:43,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 03:59:43,344 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 03:59:43,344 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-08-27 03:59:43,363 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5305dd401/92b97b5f0c714178b6d66fa1a9f4124d/FLAG3460b7d71 [2023-08-27 03:59:43,374 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5305dd401/92b97b5f0c714178b6d66fa1a9f4124d [2023-08-27 03:59:43,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 03:59:43,377 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 03:59:43,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 03:59:43,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 03:59:43,380 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 03:59:43,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:59:43" (1/1) ... [2023-08-27 03:59:43,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f12aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:43, skipping insertion in model container [2023-08-27 03:59:43,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:59:43" (1/1) ... [2023-08-27 03:59:43,445 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 03:59:43,570 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-27 03:59:43,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:59:43,972 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 03:59:43,981 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-27 03:59:43,986 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [251] [2023-08-27 03:59:43,987 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [251] [2023-08-27 03:59:43,993 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [735] [2023-08-27 03:59:44,009 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned long [1691] [2023-08-27 03:59:44,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:59:44,159 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:59:44,160 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:59:44,160 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:59:44,166 INFO L206 MainTranslator]: Completed translation [2023-08-27 03:59:44,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44 WrapperNode [2023-08-27 03:59:44,166 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 03:59:44,167 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 03:59:44,167 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 03:59:44,167 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 03:59:44,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,228 INFO L138 Inliner]: procedures = 468, calls = 49, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 130 [2023-08-27 03:59:44,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 03:59:44,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 03:59:44,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 03:59:44,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 03:59:44,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,257 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 03:59:44,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 03:59:44,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 03:59:44,265 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 03:59:44,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (1/1) ... [2023-08-27 03:59:44,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:59:44,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 03:59:44,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-27 03:59:44,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-27 03:59:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 03:59:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 03:59:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 03:59:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 03:59:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 03:59:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-27 03:59:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 03:59:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 03:59:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-27 03:59:44,323 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-27 03:59:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 03:59:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 03:59:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 03:59:44,324 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 03:59:44,566 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 03:59:44,567 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 03:59:44,748 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 03:59:44,766 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 03:59:44,766 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 03:59:44,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:59:44 BoogieIcfgContainer [2023-08-27 03:59:44,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 03:59:44,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 03:59:44,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 03:59:44,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 03:59:44,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 03:59:43" (1/3) ... [2023-08-27 03:59:44,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ce51fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:59:44, skipping insertion in model container [2023-08-27 03:59:44,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:59:44" (2/3) ... [2023-08-27 03:59:44,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ce51fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:59:44, skipping insertion in model container [2023-08-27 03:59:44,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:59:44" (3/3) ... [2023-08-27 03:59:44,774 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-08-27 03:59:44,787 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 03:59:44,787 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-27 03:59:44,788 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 03:59:44,841 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 03:59:44,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 171 transitions, 358 flow [2023-08-27 03:59:44,980 INFO L124 PetriNetUnfolderBase]: 14/219 cut-off events. [2023-08-27 03:59:44,981 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 03:59:44,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 219 events. 14/219 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 425 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 114. Up to 4 conditions per place. [2023-08-27 03:59:44,986 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 171 transitions, 358 flow [2023-08-27 03:59:44,995 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 168 transitions, 348 flow [2023-08-27 03:59:44,999 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:59:45,011 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 168 transitions, 348 flow [2023-08-27 03:59:45,019 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 168 transitions, 348 flow [2023-08-27 03:59:45,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 168 transitions, 348 flow [2023-08-27 03:59:45,077 INFO L124 PetriNetUnfolderBase]: 13/218 cut-off events. [2023-08-27 03:59:45,077 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 03:59:45,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 218 events. 13/218 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 434 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 113. Up to 4 conditions per place. [2023-08-27 03:59:45,081 INFO L119 LiptonReduction]: Number of co-enabled transitions 3380 [2023-08-27 03:59:54,862 INFO L134 LiptonReduction]: Checked pairs total: 6913 [2023-08-27 03:59:54,862 INFO L136 LiptonReduction]: Total number of compositions: 201 [2023-08-27 03:59:54,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 03:59:54,878 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@73169123, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:59:54,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-27 03:59:54,882 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:59:54,882 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-08-27 03:59:54,882 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:59:54,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:59:54,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 03:59:54,883 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (and 9 more)] === [2023-08-27 03:59:54,887 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:59:54,887 INFO L85 PathProgramCache]: Analyzing trace with hash 19355016, now seen corresponding path program 1 times [2023-08-27 03:59:54,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:59:54,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798843495] [2023-08-27 03:59:54,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:59:54,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:59:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:59:55,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:59:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:59:55,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:59:55,185 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:59:55,186 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2023-08-27 03:59:55,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (10 of 12 remaining) [2023-08-27 03:59:55,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (9 of 12 remaining) [2023-08-27 03:59:55,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (8 of 12 remaining) [2023-08-27 03:59:55,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (7 of 12 remaining) [2023-08-27 03:59:55,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2023-08-27 03:59:55,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2023-08-27 03:59:55,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2023-08-27 03:59:55,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2023-08-27 03:59:55,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2023-08-27 03:59:55,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2023-08-27 03:59:55,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2023-08-27 03:59:55,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 03:59:55,191 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 03:59:55,202 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 03:59:55,202 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 03:59:55,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 03:59:55 BasicIcfg [2023-08-27 03:59:55,223 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 03:59:55,224 INFO L158 Benchmark]: Toolchain (without parser) took 11847.01ms. Allocated memory was 383.8MB in the beginning and 476.1MB in the end (delta: 92.3MB). Free memory was 357.1MB in the beginning and 283.3MB in the end (delta: 73.9MB). Peak memory consumption was 168.2MB. Max. memory is 16.0GB. [2023-08-27 03:59:55,225 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 383.8MB. Free memory is still 360.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 03:59:55,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 788.44ms. Allocated memory is still 383.8MB. Free memory was 357.1MB in the beginning and 349.3MB in the end (delta: 7.8MB). Peak memory consumption was 57.1MB. Max. memory is 16.0GB. [2023-08-27 03:59:55,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.49ms. Allocated memory is still 383.8MB. Free memory was 349.3MB in the beginning and 346.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:59:55,226 INFO L158 Benchmark]: Boogie Preprocessor took 34.56ms. Allocated memory is still 383.8MB. Free memory was 346.5MB in the beginning and 343.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-27 03:59:55,226 INFO L158 Benchmark]: RCFGBuilder took 503.61ms. Allocated memory is still 383.8MB. Free memory was 343.1MB in the beginning and 318.8MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 03:59:55,227 INFO L158 Benchmark]: TraceAbstraction took 10454.12ms. Allocated memory was 383.8MB in the beginning and 476.1MB in the end (delta: 92.3MB). Free memory was 318.0MB in the beginning and 283.3MB in the end (delta: 34.7MB). Peak memory consumption was 125.8MB. Max. memory is 16.0GB. [2023-08-27 03:59:55,228 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 383.8MB. Free memory is still 360.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 788.44ms. Allocated memory is still 383.8MB. Free memory was 357.1MB in the beginning and 349.3MB in the end (delta: 7.8MB). Peak memory consumption was 57.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.49ms. Allocated memory is still 383.8MB. Free memory was 349.3MB in the beginning and 346.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 34.56ms. Allocated memory is still 383.8MB. Free memory was 346.5MB in the beginning and 343.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 503.61ms. Allocated memory is still 383.8MB. Free memory was 343.1MB in the beginning and 318.8MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 10454.12ms. Allocated memory was 383.8MB in the beginning and 476.1MB in the end (delta: 92.3MB). Free memory was 318.0MB in the beginning and 283.3MB in the end (delta: 34.7MB). Peak memory consumption was 125.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 251]: Unsoundness Warning unspecified type, defaulting to int C: short [251] - GenericResultAtLocation [Line: 251]: Unsoundness Warning unspecified type, defaulting to int C: short [251] - GenericResultAtLocation [Line: 735]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [735] - GenericResultAtLocation [Line: 1691]: Unsoundness Warning unspecified type, defaulting to int C: unsigned long [1691] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.8s, 165 PlacesBefore, 36 PlacesAfterwards, 168 TransitionsBefore, 32 TransitionsAfterwards, 3380 CoEnabledTransitionPairs, 7 FixpointIterations, 81 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 29 ConcurrentYvCompositions, 7 ChoiceCompositions, 201 TotalNumberOfCompositions, 6913 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3208, independent: 3020, independent conditional: 0, independent unconditional: 3020, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1970, independent: 1927, independent conditional: 0, independent unconditional: 1927, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3208, independent: 1093, independent conditional: 0, independent unconditional: 1093, dependent: 145, dependent conditional: 0, dependent unconditional: 145, unknown: 1970, unknown conditional: 0, unknown unconditional: 1970] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 28, Positive conditional cache size: 0, Positive unconditional cache size: 28, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1699]: integer overflow possible integer overflow possible We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1731] CALL, EXPR 0 my_drv_init() [L1725] 0 return 0; [L1731] RET, EXPR 0 my_drv_init() [L1731] 0 int ret = my_drv_init(); [L1732] COND TRUE 0 ret==0 [L1733] 0 int probe_ret; [L1734] 0 struct my_data data; [L1735] CALL 0 my_drv_probe(&data) [L1704] 0 struct device *d = &data->dev; [L1706] 0 data->shared.a = 0 [L1707] 0 data->shared.b = 0 [L1708] 0 int res = __VERIFIER_nondet_int(); [L1709] COND FALSE 0 !(\read(res)) [L1711] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=-1, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 1 data->shared.a = 1 VAL [__mptr={1156:25}, arg={5:24}, arg={5:24}, data={1156:1}, dev={5:24}, t1={3:0}, t2={4:0}] [L1696] EXPR 1 data->shared.b [L1696] 1 int lb = data->shared.b; [L1699] 1 lb + 1 VAL [__mptr={1156:25}, arg={5:24}, arg={5:24}, data={1156:1}, dev={5:24}, lb=-2147483650, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1671]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1711]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1699]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 177 locations, 12 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: 10.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-27 03:59:55,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...