/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 PROGRAM_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-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 10:21:13,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 10:21:13,571 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 10:21:13,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 10:21:13,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 10:21:13,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 10:21:13,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 10:21:13,609 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 10:21:13,610 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 10:21:13,613 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 10:21:13,614 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 10:21:13,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 10:21:13,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 10:21:13,615 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 10:21:13,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 10:21:13,616 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 10:21:13,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 10:21:13,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 10:21:13,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 10:21:13,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 10:21:13,617 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 10:21:13,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 10:21:13,618 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 10:21:13,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 10:21:13,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 10:21:13,619 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 10:21:13,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 10:21:13,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:21:13,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 10:21:13,620 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 10:21:13,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 10:21:13,621 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 10:21:13,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 10:21:13,621 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 10:21:13,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 10:21:13,622 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 10:21:13,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 10:21:13,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 10:21:13,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 10:21:13,975 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 10:21:13,976 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 10:21:13,977 INFO L431 ainManager$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 [2023-08-27 10:21:15,046 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 10:21:15,378 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 10:21:15,379 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2023-08-27 10:21:15,420 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/771022d34/210a4c638cd94071ac7d9c730a2c27dc/FLAG9f6b71118 [2023-08-27 10:21:15,432 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/771022d34/210a4c638cd94071ac7d9c730a2c27dc [2023-08-27 10:21:15,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 10:21:15,437 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 10:21:15,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 10:21:15,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 10:21:15,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 10:21:15,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:21:15" (1/1) ... [2023-08-27 10:21:15,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53cc3b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:15, skipping insertion in model container [2023-08-27 10:21:15,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:21:15" (1/1) ... [2023-08-27 10:21:15,516 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 10:21:15,668 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-27 10:21:16,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:21:16,265 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 10:21:16,275 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-27 10:21:16,289 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [251] [2023-08-27 10:21:16,294 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [251] [2023-08-27 10:21:16,301 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [735] [2023-08-27 10:21:16,319 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned long [1691] [2023-08-27 10:21:16,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 10:21:16,444 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:21:16,444 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:21:16,444 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 10:21:16,450 INFO L206 MainTranslator]: Completed translation [2023-08-27 10:21:16,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16 WrapperNode [2023-08-27 10:21:16,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 10:21:16,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 10:21:16,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 10:21:16,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 10:21:16,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,529 INFO L138 Inliner]: procedures = 468, calls = 53, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 155 [2023-08-27 10:21:16,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 10:21:16,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 10:21:16,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 10:21:16,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 10:21:16,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 10:21:16,590 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 10:21:16,590 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 10:21:16,590 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 10:21:16,591 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (1/1) ... [2023-08-27 10:21:16,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 10:21:16,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 10:21:16,630 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 10:21:16,640 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 10:21:16,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 10:21:16,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 10:21:16,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 10:21:16,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-27 10:21:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 10:21:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-27 10:21:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 10:21:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 10:21:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-27 10:21:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-27 10:21:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 10:21:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 10:21:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 10:21:16,663 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 10:21:16,899 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 10:21:16,900 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 10:21:17,166 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 10:21:17,193 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 10:21:17,194 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 10:21:17,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:21:17 BoogieIcfgContainer [2023-08-27 10:21:17,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 10:21:17,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 10:21:17,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 10:21:17,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 10:21:17,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:21:15" (1/3) ... [2023-08-27 10:21:17,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336318cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:21:17, skipping insertion in model container [2023-08-27 10:21:17,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:21:16" (2/3) ... [2023-08-27 10:21:17,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336318cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:21:17, skipping insertion in model container [2023-08-27 10:21:17,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:21:17" (3/3) ... [2023-08-27 10:21:17,205 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2023-08-27 10:21:17,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 10:21:17,221 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-27 10:21:17,221 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 10:21:17,294 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-27 10:21:17,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 198 transitions, 412 flow [2023-08-27 10:21:17,397 INFO L124 PetriNetUnfolderBase]: 18/246 cut-off events. [2023-08-27 10:21:17,397 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 10:21:17,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 246 events. 18/246 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 453 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 142. Up to 4 conditions per place. [2023-08-27 10:21:17,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 198 transitions, 412 flow [2023-08-27 10:21:17,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 195 transitions, 402 flow [2023-08-27 10:21:17,414 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 10:21:17,422 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 195 transitions, 402 flow [2023-08-27 10:21:17,424 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 195 transitions, 402 flow [2023-08-27 10:21:17,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 195 transitions, 402 flow [2023-08-27 10:21:17,471 INFO L124 PetriNetUnfolderBase]: 17/245 cut-off events. [2023-08-27 10:21:17,471 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 10:21:17,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 245 events. 17/245 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 461 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2023-08-27 10:21:17,476 INFO L119 LiptonReduction]: Number of co-enabled transitions 3096 [2023-08-27 10:21:29,689 INFO L134 LiptonReduction]: Checked pairs total: 7573 [2023-08-27 10:21:29,689 INFO L136 LiptonReduction]: Total number of compositions: 243 [2023-08-27 10:21:29,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 10:21:29,713 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;@6b07476e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 10:21:29,714 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-27 10:21:29,715 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 10:21:29,715 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-27 10:21:29,715 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 10:21:29,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:21:29,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-27 10:21:29,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (and 11 more)] === [2023-08-27 10:21:29,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:21:29,723 INFO L85 PathProgramCache]: Analyzing trace with hash 744, now seen corresponding path program 1 times [2023-08-27 10:21:29,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:21:29,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718980271] [2023-08-27 10:21:29,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:21:29,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:21:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 10:21:29,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 10:21:29,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 10:21:29,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718980271] [2023-08-27 10:21:29,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718980271] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 10:21:29,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 10:21:29,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-27 10:21:29,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249678036] [2023-08-27 10:21:29,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 10:21:29,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-27 10:21:29,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 10:21:29,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-27 10:21:29,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-27 10:21:29,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 441 [2023-08-27 10:21:29,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 80 flow. Second operand has 2 states, 2 states have (on average 170.5) internal successors, (341), 2 states have internal predecessors, (341), 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) [2023-08-27 10:21:29,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 10:21:29,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 441 [2023-08-27 10:21:29,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 10:21:30,150 INFO L124 PetriNetUnfolderBase]: 531/903 cut-off events. [2023-08-27 10:21:30,151 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-27 10:21:30,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 903 events. 531/903 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4271 event pairs, 530 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 1717. Up to 898 conditions per place. [2023-08-27 10:21:30,162 INFO L140 encePairwiseOnDemand]: 438/441 looper letters, 30 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2023-08-27 10:21:30,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 134 flow [2023-08-27 10:21:30,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-27 10:21:30,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-27 10:21:30,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 373 transitions. [2023-08-27 10:21:30,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42290249433106575 [2023-08-27 10:21:30,176 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 373 transitions. [2023-08-27 10:21:30,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 373 transitions. [2023-08-27 10:21:30,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 10:21:30,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 373 transitions. [2023-08-27 10:21:30,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 186.5) internal successors, (373), 2 states have internal predecessors, (373), 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) [2023-08-27 10:21:30,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 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) [2023-08-27 10:21:30,194 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 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) [2023-08-27 10:21:30,196 INFO L175 Difference]: Start difference. First operand has 38 places, 34 transitions, 80 flow. Second operand 2 states and 373 transitions. [2023-08-27 10:21:30,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 134 flow [2023-08-27 10:21:30,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 126 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-27 10:21:30,202 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 66 flow [2023-08-27 10:21:30,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=441, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2023-08-27 10:21:30,207 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -5 predicate places. [2023-08-27 10:21:30,208 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 66 flow [2023-08-27 10:21:30,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 170.5) internal successors, (341), 2 states have internal predecessors, (341), 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) [2023-08-27 10:21:30,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 10:21:30,208 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-27 10:21:30,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 10:21:30,209 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (and 11 more)] === [2023-08-27 10:21:30,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 10:21:30,210 INFO L85 PathProgramCache]: Analyzing trace with hash 23004356, now seen corresponding path program 1 times [2023-08-27 10:21:30,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 10:21:30,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329304186] [2023-08-27 10:21:30,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 10:21:30,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 10:21:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 10:21:30,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 10:21:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 10:21:30,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 10:21:30,400 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 10:21:30,401 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 14 remaining) [2023-08-27 10:21:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (12 of 14 remaining) [2023-08-27 10:21:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (11 of 14 remaining) [2023-08-27 10:21:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONASSERT (10 of 14 remaining) [2023-08-27 10:21:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (9 of 14 remaining) [2023-08-27 10:21:30,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (8 of 14 remaining) [2023-08-27 10:21:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (7 of 14 remaining) [2023-08-27 10:21:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 14 remaining) [2023-08-27 10:21:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 14 remaining) [2023-08-27 10:21:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2023-08-27 10:21:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2023-08-27 10:21:30,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2023-08-27 10:21:30,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2023-08-27 10:21:30,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2023-08-27 10:21:30,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 10:21:30,405 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-27 10:21:30,410 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 10:21:30,410 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 10:21:30,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:21:30 BasicIcfg [2023-08-27 10:21:30,435 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 10:21:30,436 INFO L158 Benchmark]: Toolchain (without parser) took 14998.70ms. Allocated memory was 333.4MB in the beginning and 526.4MB in the end (delta: 192.9MB). Free memory was 308.2MB in the beginning and 324.4MB in the end (delta: -16.2MB). Peak memory consumption was 177.3MB. Max. memory is 16.0GB. [2023-08-27 10:21:30,436 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 333.4MB. Free memory is still 311.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 10:21:30,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1013.43ms. Allocated memory is still 333.4MB. Free memory was 307.7MB in the beginning and 253.2MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. [2023-08-27 10:21:30,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.23ms. Allocated memory is still 333.4MB. Free memory was 253.2MB in the beginning and 307.5MB in the end (delta: -54.3MB). Peak memory consumption was 8.6MB. Max. memory is 16.0GB. [2023-08-27 10:21:30,442 INFO L158 Benchmark]: Boogie Preprocessor took 59.54ms. Allocated memory is still 333.4MB. Free memory was 307.5MB in the beginning and 304.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 10:21:30,442 INFO L158 Benchmark]: RCFGBuilder took 606.30ms. Allocated memory is still 333.4MB. Free memory was 304.4MB in the beginning and 279.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-27 10:21:30,442 INFO L158 Benchmark]: TraceAbstraction took 13236.62ms. Allocated memory was 333.4MB in the beginning and 526.4MB in the end (delta: 192.9MB). Free memory was 278.1MB in the beginning and 324.4MB in the end (delta: -46.2MB). Peak memory consumption was 145.7MB. Max. memory is 16.0GB. [2023-08-27 10:21:30,444 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 333.4MB. Free memory is still 311.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 1013.43ms. Allocated memory is still 333.4MB. Free memory was 307.7MB in the beginning and 253.2MB in the end (delta: 54.5MB). Peak memory consumption was 54.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 77.23ms. Allocated memory is still 333.4MB. Free memory was 253.2MB in the beginning and 307.5MB in the end (delta: -54.3MB). Peak memory consumption was 8.6MB. Max. memory is 16.0GB. * Boogie Preprocessor took 59.54ms. Allocated memory is still 333.4MB. Free memory was 307.5MB in the beginning and 304.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 606.30ms. Allocated memory is still 333.4MB. Free memory was 304.4MB in the beginning and 279.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 13236.62ms. Allocated memory was 333.4MB in the beginning and 526.4MB in the end (delta: 192.9MB). Free memory was 278.1MB in the beginning and 324.4MB in the end (delta: -46.2MB). Peak memory consumption was 145.7MB. 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: 12.3s, 188 PlacesBefore, 38 PlacesAfterwards, 195 TransitionsBefore, 34 TransitionsAfterwards, 3096 CoEnabledTransitionPairs, 9 FixpointIterations, 116 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 25 TrivialYvCompositions, 24 ConcurrentYvCompositions, 11 ChoiceCompositions, 243 TotalNumberOfCompositions, 7573 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3223, independent: 2975, independent conditional: 0, independent unconditional: 2975, dependent: 248, dependent conditional: 0, dependent unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1865, independent: 1817, independent conditional: 0, independent unconditional: 1817, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3223, independent: 1158, independent conditional: 0, independent unconditional: 1158, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 1865, unknown conditional: 0, unknown unconditional: 1865] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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; [L1688] 0 struct device *my_dev; [L1733] CALL, EXPR 0 my_drv_init() [L1727] 0 return 0; [L1733] RET, EXPR 0 my_drv_init() [L1733] 0 int ret = my_drv_init(); [L1734] COND TRUE 0 ret==0 [L1735] 0 int probe_ret; [L1736] 0 struct my_data data; [L1737] CALL 0 my_drv_probe(&data) [L1705] 0 data->shared.a = 0 [L1706] 0 data->shared.b = 0 [L1707] EXPR 0 data->shared.a [L1707] CALL 0 ldv_assert(data->shared.a==0) [L1675] COND FALSE 0 !(!expression) [L1707] RET 0 ldv_assert(data->shared.a==0) [L1708] EXPR 0 data->shared.b [L1708] CALL 0 ldv_assert(data->shared.b==0) [L1675] COND FALSE 0 !(!expression) [L1708] RET 0 ldv_assert(data->shared.b==0) [L1709] 0 int res = __VERIFIER_nondet_int(); [L1710] COND FALSE 0 !(\read(res)) [L1712] 0 my_dev = &data->dev [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, data={5:0}, data={5:0}, my_dev={5:24}, pthread_create(&t1, ((void *)0), my_callback, ((void *)0))=-1, res=0, t1={3:0}, t2={4:0}] [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); [L1691] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );} [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 1 data->shared.a = 1 VAL [__mptr={2147483655:25}, arg={0:0}, arg={0:0}, data={2147483655:1}, my_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={2147483655:25}, arg={0:0}, arg={0:0}, data={2147483655:1}, lb=2147483647, my_dev={5:24}, 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: 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: 1713]: 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: 1714]: 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, 199 locations, 14 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: 13.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 10:21:30,460 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...