/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 FINITE_AUTOMATA -i ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 17:24:33,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 17:24:33,312 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 17:24:33,315 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 17:24:33,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 17:24:33,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 17:24:33,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 17:24:33,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 17:24:33,342 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 17:24:33,342 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 17:24:33,343 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 17:24:33,343 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 17:24:33,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 17:24:33,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 17:24:33,343 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 17:24:33,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 17:24:33,344 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 17:24:33,344 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:24:33,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:24:33,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 17:24:33,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 17:24:33,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 17:24:33,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 17:24:33,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 17:24:33,346 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 -> FINITE_AUTOMATA [2025-04-13 17:24:33,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 17:24:33,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 17:24:33,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 17:24:33,715 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 17:24:33,715 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 17:24:33,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2025-04-13 17:24:35,109 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78eac93e/6146eb91b0784e40acf6a8cb8fe9cdbd/FLAG45ef75215 [2025-04-13 17:24:35,424 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 17:24:35,424 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2025-04-13 17:24:35,456 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78eac93e/6146eb91b0784e40acf6a8cb8fe9cdbd/FLAG45ef75215 [2025-04-13 17:24:36,110 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78eac93e/6146eb91b0784e40acf6a8cb8fe9cdbd [2025-04-13 17:24:36,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 17:24:36,113 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 17:24:36,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 17:24:36,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 17:24:36,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 17:24:36,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2272a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36, skipping insertion in model container [2025-04-13 17:24:36,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 17:24:36,573 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-2_3-container_of.i[186287,186300] [2025-04-13 17:24:36,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 17:24:36,611 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 17:24:36,665 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-2_3-container_of.i[186287,186300] [2025-04-13 17:24:36,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 17:24:36,718 INFO L204 MainTranslator]: Completed translation [2025-04-13 17:24:36,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36 WrapperNode [2025-04-13 17:24:36,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 17:24:36,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 17:24:36,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 17:24:36,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 17:24:36,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,759 INFO L138 Inliner]: procedures = 248, calls = 55, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 136 [2025-04-13 17:24:36,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 17:24:36,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 17:24:36,760 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 17:24:36,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 17:24:36,765 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,772 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,788 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 2, 15]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 2, 8]. [2025-04-13 17:24:36,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,803 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,803 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 17:24:36,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 17:24:36,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 17:24:36,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 17:24:36,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (1/1) ... [2025-04-13 17:24:36,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:24:36,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 17:24:36,845 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 17:24:36,847 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 17:24:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-04-13 17:24:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-04-13 17:24:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 17:24:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-13 17:24:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 17:24:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 17:24:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 17:24:36,867 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 17:24:37,059 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 17:24:37,060 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 17:24:37,248 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 17:24:37,249 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 17:24:37,249 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 17:24:37,460 WARN L179 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 17:24:37,487 WARN L179 LargeBlockEncoding]: Complex 3:3 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 17:24:37,523 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 17:24:37,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 05:24:37 BoogieIcfgContainer [2025-04-13 17:24:37,524 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 17:24:37,526 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 17:24:37,526 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 17:24:37,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 17:24:37,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 05:24:36" (1/3) ... [2025-04-13 17:24:37,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71876432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 05:24:37, skipping insertion in model container [2025-04-13 17:24:37,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:36" (2/3) ... [2025-04-13 17:24:37,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71876432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 05:24:37, skipping insertion in model container [2025-04-13 17:24:37,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 05:24:37" (3/3) ... [2025-04-13 17:24:37,532 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2025-04-13 17:24:37,544 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 17:24:37,545 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_3-container_of.i that has 2 procedures, 30 locations, 35 edges, 1 initial locations, 0 loop locations, and 6 error locations. [2025-04-13 17:24:37,545 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 17:24:37,598 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 17:24:37,624 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 45 transitions, 104 flow [2025-04-13 17:24:37,702 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1016 states, 1006 states have (on average 2.6809145129224654) internal successors, (2697), 1015 states have internal predecessors, (2697), 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 17:24:37,727 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 17:24:37,738 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=FINITE_AUTOMATA, 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;@5982f112, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 17:24:37,738 INFO L341 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-04-13 17:24:37,742 INFO L278 IsEmpty]: Start isEmpty. Operand has 1016 states, 1006 states have (on average 2.6809145129224654) internal successors, (2697), 1015 states have internal predecessors, (2697), 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 17:24:37,746 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2025-04-13 17:24:37,746 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:24:37,746 INFO L218 NwaCegarLoop]: trace histogram [1] [2025-04-13 17:24:37,747 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-04-13 17:24:37,751 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:24:37,752 INFO L85 PathProgramCache]: Analyzing trace with hash 489, now seen corresponding path program 1 times [2025-04-13 17:24:37,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:24:37,760 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722681854] [2025-04-13 17:24:37,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:24:37,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:24:37,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-13 17:24:37,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-13 17:24:37,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:24:37,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:24:38,213 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 17:24:38,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:24:38,214 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722681854] [2025-04-13 17:24:38,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722681854] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:24:38,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:24:38,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2025-04-13 17:24:38,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454170270] [2025-04-13 17:24:38,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:24:38,221 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 17:24:38,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:24:38,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 17:24:38,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 17:24:38,241 INFO L87 Difference]: Start difference. First operand has 1016 states, 1006 states have (on average 2.6809145129224654) internal successors, (2697), 1015 states have internal predecessors, (2697), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 17:24:38,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:24:38,342 INFO L93 Difference]: Finished difference Result 1016 states and 2697 transitions. [2025-04-13 17:24:38,343 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 17:24:38,344 INFO L79 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2025-04-13 17:24:38,344 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:24:38,356 INFO L225 Difference]: With dead ends: 1016 [2025-04-13 17:24:38,356 INFO L226 Difference]: Without dead ends: 770 [2025-04-13 17:24:38,359 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 17:24:38,361 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 17:24:38,362 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 17:24:38,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2025-04-13 17:24:38,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2025-04-13 17:24:38,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 766 states have (on average 2.633159268929504) internal successors, (2017), 769 states have internal predecessors, (2017), 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 17:24:38,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 2017 transitions. [2025-04-13 17:24:38,439 INFO L79 Accepts]: Start accepts. Automaton has 770 states and 2017 transitions. Word has length 1 [2025-04-13 17:24:38,441 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:24:38,441 INFO L485 AbstractCegarLoop]: Abstraction has 770 states and 2017 transitions. [2025-04-13 17:24:38,442 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 17:24:38,442 INFO L278 IsEmpty]: Start isEmpty. Operand 770 states and 2017 transitions. [2025-04-13 17:24:38,443 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-13 17:24:38,443 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:24:38,443 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:24:38,443 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 17:24:38,443 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-04-13 17:24:38,444 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:24:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1970089692, now seen corresponding path program 1 times [2025-04-13 17:24:38,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:24:38,444 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746508884] [2025-04-13 17:24:38,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:24:38,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:24:38,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-13 17:24:38,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-13 17:24:38,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:24:38,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:24:38,696 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 17:24:38,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:24:38,697 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746508884] [2025-04-13 17:24:38,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746508884] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:24:38,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:24:38,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 17:24:38,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604336352] [2025-04-13 17:24:38,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:24:38,698 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 17:24:38,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:24:38,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 17:24:38,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:24:38,698 INFO L87 Difference]: Start difference. First operand 770 states and 2017 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 17:24:38,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:24:38,792 INFO L93 Difference]: Finished difference Result 1160 states and 3079 transitions. [2025-04-13 17:24:38,793 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 17:24:38,793 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2025-04-13 17:24:38,793 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:24:38,800 INFO L225 Difference]: With dead ends: 1160 [2025-04-13 17:24:38,800 INFO L226 Difference]: Without dead ends: 1079 [2025-04-13 17:24:38,802 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:24:38,803 INFO L437 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 17:24:38,803 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 6 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 17:24:38,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2025-04-13 17:24:38,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 884. [2025-04-13 17:24:38,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 880 states have (on average 2.639772727272727) internal successors, (2323), 883 states have internal predecessors, (2323), 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 17:24:38,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 2323 transitions. [2025-04-13 17:24:38,838 INFO L79 Accepts]: Start accepts. Automaton has 884 states and 2323 transitions. Word has length 8 [2025-04-13 17:24:38,842 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:24:38,843 INFO L485 AbstractCegarLoop]: Abstraction has 884 states and 2323 transitions. [2025-04-13 17:24:38,843 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 17:24:38,843 INFO L278 IsEmpty]: Start isEmpty. Operand 884 states and 2323 transitions. [2025-04-13 17:24:38,843 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-04-13 17:24:38,843 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:24:38,843 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:24:38,844 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 17:24:38,844 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-04-13 17:24:38,844 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:24:38,844 INFO L85 PathProgramCache]: Analyzing trace with hash -943237830, now seen corresponding path program 1 times [2025-04-13 17:24:38,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:24:38,844 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644988137] [2025-04-13 17:24:38,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:24:38,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:24:38,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-13 17:24:38,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-13 17:24:38,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:24:38,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:24:39,005 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 17:24:39,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:24:39,005 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644988137] [2025-04-13 17:24:39,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644988137] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:24:39,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:24:39,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 17:24:39,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684367038] [2025-04-13 17:24:39,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:24:39,006 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 17:24:39,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:24:39,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 17:24:39,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:24:39,006 INFO L87 Difference]: Start difference. First operand 884 states and 2323 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 17:24:39,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:24:39,099 INFO L93 Difference]: Finished difference Result 1209 states and 3208 transitions. [2025-04-13 17:24:39,100 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 17:24:39,100 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2025-04-13 17:24:39,100 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:24:39,108 INFO L225 Difference]: With dead ends: 1209 [2025-04-13 17:24:39,108 INFO L226 Difference]: Without dead ends: 1128 [2025-04-13 17:24:39,109 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:24:39,111 INFO L437 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 17:24:39,111 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 17:24:39,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2025-04-13 17:24:39,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 998. [2025-04-13 17:24:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 994 states have (on average 2.710261569416499) internal successors, (2694), 997 states have internal predecessors, (2694), 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 17:24:39,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 2694 transitions. [2025-04-13 17:24:39,148 INFO L79 Accepts]: Start accepts. Automaton has 998 states and 2694 transitions. Word has length 9 [2025-04-13 17:24:39,148 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:24:39,148 INFO L485 AbstractCegarLoop]: Abstraction has 998 states and 2694 transitions. [2025-04-13 17:24:39,148 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 17:24:39,148 INFO L278 IsEmpty]: Start isEmpty. Operand 998 states and 2694 transitions. [2025-04-13 17:24:39,152 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-13 17:24:39,152 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:24:39,152 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:24:39,153 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 17:24:39,153 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-04-13 17:24:39,153 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:24:39,153 INFO L85 PathProgramCache]: Analyzing trace with hash 682414558, now seen corresponding path program 1 times [2025-04-13 17:24:39,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:24:39,153 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665144727] [2025-04-13 17:24:39,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:24:39,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:24:39,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-13 17:24:39,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-13 17:24:39,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:24:39,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 17:24:39,182 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-13 17:24:39,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-13 17:24:39,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-13 17:24:39,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:24:39,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 17:24:39,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-13 17:24:39,228 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-13 17:24:39,229 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2025-04-13 17:24:39,231 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2025-04-13 17:24:39,231 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2025-04-13 17:24:39,231 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2025-04-13 17:24:39,231 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2025-04-13 17:24:39,231 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2025-04-13 17:24:39,231 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2025-04-13 17:24:39,231 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2025-04-13 17:24:39,232 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 17:24:39,234 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-13 17:24:39,282 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 17:24:39,282 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 17:24:39,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 05:24:39 BasicIcfg [2025-04-13 17:24:39,285 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 17:24:39,286 INFO L158 Benchmark]: Toolchain (without parser) took 3172.17ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 81.1MB in the end (delta: 23.3MB). Peak memory consumption was 23.7MB. Max. memory is 8.0GB. [2025-04-13 17:24:39,286 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:24:39,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 604.98ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 70.1MB in the end (delta: 34.4MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2025-04-13 17:24:39,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.64ms. Allocated memory is still 155.2MB. Free memory was 70.1MB in the beginning and 67.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:24:39,287 INFO L158 Benchmark]: Boogie Preprocessor took 57.84ms. Allocated memory is still 155.2MB. Free memory was 67.4MB in the beginning and 64.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 17:24:39,287 INFO L158 Benchmark]: RCFGBuilder took 706.01ms. Allocated memory is still 155.2MB. Free memory was 63.4MB in the beginning and 74.2MB in the end (delta: -10.7MB). Peak memory consumption was 51.2MB. Max. memory is 8.0GB. [2025-04-13 17:24:39,287 INFO L158 Benchmark]: TraceAbstraction took 1758.99ms. Allocated memory is still 155.2MB. Free memory was 74.2MB in the beginning and 81.1MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:24:39,289 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 604.98ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 70.1MB in the end (delta: 34.4MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.64ms. Allocated memory is still 155.2MB. Free memory was 70.1MB in the beginning and 67.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 57.84ms. Allocated memory is still 155.2MB. Free memory was 67.4MB in the beginning and 64.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 706.01ms. Allocated memory is still 155.2MB. Free memory was 63.4MB in the beginning and 74.2MB in the end (delta: -10.7MB). Peak memory consumption was 51.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1758.99ms. Allocated memory is still 155.2MB. Free memory was 74.2MB in the beginning and 81.1MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 3887]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\at(arg, Pre)={4:24}, \at(data, Pre)={4:0}, d={4:24}, data={4:0}, res=0, t1=-1, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\at(arg, Pre)={4:24}, \at(data, Pre)={4:0}, arg={4:24}, d={4:24}, data={4:0}, data={4:0}, dev={4:24}, res=0, t1=-1, t2=0] [L3933] 0 data->shared.a = 3 VAL [\at(arg, Pre)={4:24}, arg={4:24}, data={4:0}, dev={4:24}, t1=-1, t2=0] [L3907] 1 data->shared.a = 1 VAL [\at(arg, Pre)={4:24}, arg={4:24}, data={4:0}, dev={4:24}, t1=-1, t2=0] [L3936] 0 data->shared.b = 3 VAL [\at(arg, Pre)={4:24}, arg={4:24}, data={4:0}, dev={4:24}, t1=-1, t2=0] [L3939] EXPR 0 data->shared.a [L3939] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] 0 reach_error() VAL [\at(arg, Pre)={4:24}, \at(expression, Pre)=0, arg={4:24}, data={4:0}, dev={4:24}, expression=0, t1=-1, t2=0] - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3887]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 3930]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 3929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 50 locations, 57 edges, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 187 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 10 mSDtfsCounter, 187 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1016occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 325 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 47 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 17:24:39,304 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...