/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_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 17:24:32,687 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 17:24:32,741 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 17:24:32,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 17:24:32,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 17:24:32,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 17:24:32,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 17:24:32,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 17:24:32,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 17:24:32,767 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 17:24:32,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 17:24:32,767 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 17:24:32,767 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 17:24:32,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 17:24:32,767 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 17:24:32,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 17:24:32,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 17:24:32,769 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 17:24:32,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 17:24:32,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 17:24:32,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 17:24:32,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 17:24:32,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 17:24:32,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 17:24:32,770 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 17:24:32,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 17:24:32,770 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 17:24:32,770 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 17:24:32,770 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 17:24:32,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:24:32,771 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:24:32,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 17:24:32,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 17:24:32,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 17:24:32,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 17:24:32,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 17:24:32,772 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 17:24:33,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 17:24:33,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 17:24:33,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 17:24:33,028 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 17:24:33,029 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 17:24:33,030 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2025-04-13 17:24:34,353 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/627ee7bbc/72568f1484b846eea1f9d16ce18f5c72/FLAG090630044 [2025-04-13 17:24:34,663 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 17:24:34,665 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2025-04-13 17:24:34,696 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/627ee7bbc/72568f1484b846eea1f9d16ce18f5c72/FLAG090630044 [2025-04-13 17:24:35,405 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/627ee7bbc/72568f1484b846eea1f9d16ce18f5c72 [2025-04-13 17:24:35,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 17:24:35,408 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 17:24:35,409 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 17:24:35,409 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 17:24:35,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 17:24:35,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:35,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1521976a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35, skipping insertion in model container [2025-04-13 17:24:35,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:35,446 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 17:24:35,785 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_2-container_of.i[186287,186300] [2025-04-13 17:24:35,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 17:24:35,822 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 17:24:35,881 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_2-container_of.i[186287,186300] [2025-04-13 17:24:35,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 17:24:35,930 INFO L204 MainTranslator]: Completed translation [2025-04-13 17:24:35,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35 WrapperNode [2025-04-13 17:24:35,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 17:24:35,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 17:24:35,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 17:24:35,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 17:24:35,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:35,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:35,974 INFO L138 Inliner]: procedures = 246, calls = 39, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 108 [2025-04-13 17:24:35,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 17:24:35,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 17:24:35,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 17:24:35,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 17:24:35,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:35,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:35,986 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:36,002 INFO L175 MemorySlicer]: Split 15 memory accesses to 3 slices as follows [2, 2, 11]. 73 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 2, 6]. [2025-04-13 17:24:36,002 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:36,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:36,010 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:36,012 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:36,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:36,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:36,016 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:36,023 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 17:24:36,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 17:24:36,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 17:24:36,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 17:24:36,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (1/1) ... [2025-04-13 17:24:36,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:24:36,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 17:24:36,049 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 17:24:36,051 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 17:24:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-04-13 17:24:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-04-13 17:24:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 17:24:36,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-13 17:24:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-13 17:24:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 17:24:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 17:24:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 17:24:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 17:24:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 17:24:36,074 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 17:24:36,280 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 17:24:36,281 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 17:24:36,453 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 17:24:36,454 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 17:24:36,454 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 17:24:36,612 WARN L179 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 17:24:36,630 WARN L179 LargeBlockEncoding]: Complex 3:3 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-13 17:24:36,659 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 17:24:36,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 05:24:36 BoogieIcfgContainer [2025-04-13 17:24:36,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 17:24:36,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 17:24:36,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 17:24:36,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 17:24:36,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 05:24:35" (1/3) ... [2025-04-13 17:24:36,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67983b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 05:24:36, skipping insertion in model container [2025-04-13 17:24:36,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:24:35" (2/3) ... [2025-04-13 17:24:36,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67983b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 05:24:36, skipping insertion in model container [2025-04-13 17:24:36,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 05:24:36" (3/3) ... [2025-04-13 17:24:36,666 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2025-04-13 17:24:36,676 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 17:24:36,677 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_2-container_of.i that has 2 procedures, 20 locations, 25 edges, 1 initial locations, 0 loop locations, and 4 error locations. [2025-04-13 17:24:36,678 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 17:24:36,730 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 17:24:36,755 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 32 transitions, 78 flow [2025-04-13 17:24:36,786 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 212 states, 204 states have (on average 2.4411764705882355) internal successors, (498), 211 states have internal predecessors, (498), 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 17:24:36,810 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 17:24:36,820 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;@5dd72713, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 17:24:36,823 INFO L341 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-04-13 17:24:36,825 INFO L278 IsEmpty]: Start isEmpty. Operand has 212 states, 204 states have (on average 2.4411764705882355) internal successors, (498), 211 states have internal predecessors, (498), 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 17:24:36,829 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2025-04-13 17:24:36,829 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:24:36,829 INFO L218 NwaCegarLoop]: trace histogram [1] [2025-04-13 17:24:36,830 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2025-04-13 17:24:36,834 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:24:36,834 INFO L85 PathProgramCache]: Analyzing trace with hash 393, now seen corresponding path program 1 times [2025-04-13 17:24:36,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:24:36,841 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118730419] [2025-04-13 17:24:36,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:24:36,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:24:36,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-13 17:24:37,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-13 17:24:37,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:24:37,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:24:37,257 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 17:24:37,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:24:37,258 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118730419] [2025-04-13 17:24:37,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118730419] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:24:37,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:24:37,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2025-04-13 17:24:37,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010791383] [2025-04-13 17:24:37,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:24:37,265 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 17:24:37,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:24:37,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 17:24:37,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 17:24:37,282 INFO L87 Difference]: Start difference. First operand has 212 states, 204 states have (on average 2.4411764705882355) internal successors, (498), 211 states have internal predecessors, (498), 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 17:24:37,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:24:37,340 INFO L93 Difference]: Finished difference Result 212 states and 498 transitions. [2025-04-13 17:24:37,341 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 17:24:37,342 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 17:24:37,342 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:24:37,347 INFO L225 Difference]: With dead ends: 212 [2025-04-13 17:24:37,347 INFO L226 Difference]: Without dead ends: 101 [2025-04-13 17:24:37,349 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 17:24:37,352 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 17:24:37,352 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 17:24:37,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2025-04-13 17:24:37,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2025-04-13 17:24:37,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 99 states have (on average 2.0707070707070705) internal successors, (205), 100 states have internal predecessors, (205), 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 17:24:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 205 transitions. [2025-04-13 17:24:37,380 INFO L79 Accepts]: Start accepts. Automaton has 101 states and 205 transitions. Word has length 1 [2025-04-13 17:24:37,381 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:24:37,381 INFO L485 AbstractCegarLoop]: Abstraction has 101 states and 205 transitions. [2025-04-13 17:24:37,381 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 17:24:37,381 INFO L278 IsEmpty]: Start isEmpty. Operand 101 states and 205 transitions. [2025-04-13 17:24:37,383 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-04-13 17:24:37,383 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:24:37,383 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:24:37,383 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 17:24:37,384 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2025-04-13 17:24:37,384 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:24:37,385 INFO L85 PathProgramCache]: Analyzing trace with hash -823282293, now seen corresponding path program 1 times [2025-04-13 17:24:37,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:24:37,385 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384170303] [2025-04-13 17:24:37,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:24:37,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:24:37,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-13 17:24:37,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-13 17:24:37,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:24:37,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:24:38,026 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 17:24:38,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:24:38,026 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384170303] [2025-04-13 17:24:38,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384170303] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:24:38,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:24:38,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-13 17:24:38,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050674421] [2025-04-13 17:24:38,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:24:38,027 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-13 17:24:38,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:24:38,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-13 17:24:38,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-04-13 17:24:38,028 INFO L87 Difference]: Start difference. First operand 101 states and 205 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 17:24:38,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:24:38,275 INFO L93 Difference]: Finished difference Result 127 states and 250 transitions. [2025-04-13 17:24:38,276 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-13 17:24:38,276 INFO L79 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2025-04-13 17:24:38,276 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:24:38,277 INFO L225 Difference]: With dead ends: 127 [2025-04-13 17:24:38,277 INFO L226 Difference]: Without dead ends: 126 [2025-04-13 17:24:38,277 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2025-04-13 17:24:38,278 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 17:24:38,278 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 17:24:38,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2025-04-13 17:24:38,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2025-04-13 17:24:38,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 124 states have (on average 2.0080645161290325) internal successors, (249), 125 states have internal predecessors, (249), 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 17:24:38,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 249 transitions. [2025-04-13 17:24:38,291 INFO L79 Accepts]: Start accepts. Automaton has 126 states and 249 transitions. Word has length 19 [2025-04-13 17:24:38,291 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:24:38,291 INFO L485 AbstractCegarLoop]: Abstraction has 126 states and 249 transitions. [2025-04-13 17:24:38,291 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 17:24:38,291 INFO L278 IsEmpty]: Start isEmpty. Operand 126 states and 249 transitions. [2025-04-13 17:24:38,292 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-04-13 17:24:38,292 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:24:38,292 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:24:38,292 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 17:24:38,295 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2025-04-13 17:24:38,295 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:24:38,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1007366536, now seen corresponding path program 1 times [2025-04-13 17:24:38,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:24:38,296 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150178308] [2025-04-13 17:24:38,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:24:38,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:24:38,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-13 17:24:38,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-13 17:24:38,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:24:38,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:24:39,579 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 17:24:39,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:24:39,580 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150178308] [2025-04-13 17:24:39,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150178308] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:24:39,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:24:39,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-04-13 17:24:39,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768730600] [2025-04-13 17:24:39,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:24:39,580 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-04-13 17:24:39,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:24:39,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-04-13 17:24:39,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-04-13 17:24:39,581 INFO L87 Difference]: Start difference. First operand 126 states and 249 transitions. Second operand has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 17:24:40,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:24:40,294 INFO L93 Difference]: Finished difference Result 170 states and 333 transitions. [2025-04-13 17:24:40,294 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-13 17:24:40,294 INFO L79 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 19 [2025-04-13 17:24:40,294 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:24:40,296 INFO L225 Difference]: With dead ends: 170 [2025-04-13 17:24:40,296 INFO L226 Difference]: Without dead ends: 128 [2025-04-13 17:24:40,297 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2025-04-13 17:24:40,298 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 17:24:40,298 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 0 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 17:24:40,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2025-04-13 17:24:40,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 122. [2025-04-13 17:24:40,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 2.0083333333333333) internal successors, (241), 121 states have internal predecessors, (241), 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 17:24:40,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 241 transitions. [2025-04-13 17:24:40,307 INFO L79 Accepts]: Start accepts. Automaton has 122 states and 241 transitions. Word has length 19 [2025-04-13 17:24:40,307 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:24:40,307 INFO L485 AbstractCegarLoop]: Abstraction has 122 states and 241 transitions. [2025-04-13 17:24:40,307 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 17:24:40,307 INFO L278 IsEmpty]: Start isEmpty. Operand 122 states and 241 transitions. [2025-04-13 17:24:40,309 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-04-13 17:24:40,309 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:24:40,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:24:40,309 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 17:24:40,309 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2025-04-13 17:24:40,309 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:24:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash 885935665, now seen corresponding path program 2 times [2025-04-13 17:24:40,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:24:40,310 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558158739] [2025-04-13 17:24:40,310 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 17:24:40,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:24:40,330 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-04-13 17:24:40,342 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-13 17:24:40,343 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 17:24:40,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:24:40,711 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 17:24:40,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:24:40,711 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558158739] [2025-04-13 17:24:40,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558158739] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:24:40,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:24:40,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-04-13 17:24:40,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115007733] [2025-04-13 17:24:40,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:24:40,712 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-04-13 17:24:40,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:24:40,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-04-13 17:24:40,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-04-13 17:24:40,712 INFO L87 Difference]: Start difference. First operand 122 states and 241 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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 17:24:41,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:24:41,070 INFO L93 Difference]: Finished difference Result 222 states and 438 transitions. [2025-04-13 17:24:41,071 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-13 17:24:41,071 INFO L79 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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 19 [2025-04-13 17:24:41,071 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:24:41,072 INFO L225 Difference]: With dead ends: 222 [2025-04-13 17:24:41,072 INFO L226 Difference]: Without dead ends: 221 [2025-04-13 17:24:41,072 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2025-04-13 17:24:41,073 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 17:24:41,073 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 0 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 17:24:41,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2025-04-13 17:24:41,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 158. [2025-04-13 17:24:41,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 156 states have (on average 2.0833333333333335) internal successors, (325), 157 states have internal predecessors, (325), 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 17:24:41,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 325 transitions. [2025-04-13 17:24:41,083 INFO L79 Accepts]: Start accepts. Automaton has 158 states and 325 transitions. Word has length 19 [2025-04-13 17:24:41,083 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:24:41,083 INFO L485 AbstractCegarLoop]: Abstraction has 158 states and 325 transitions. [2025-04-13 17:24:41,083 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 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 17:24:41,083 INFO L278 IsEmpty]: Start isEmpty. Operand 158 states and 325 transitions. [2025-04-13 17:24:41,083 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-04-13 17:24:41,083 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:24:41,084 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:24:41,084 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 17:24:41,084 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2025-04-13 17:24:41,084 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:24:41,084 INFO L85 PathProgramCache]: Analyzing trace with hash 134161490, now seen corresponding path program 2 times [2025-04-13 17:24:41,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:24:41,084 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250353661] [2025-04-13 17:24:41,084 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 17:24:41,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:24:41,107 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-04-13 17:24:41,122 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-13 17:24:41,123 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 17:24:41,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 17:24:41,123 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-13 17:24:41,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-13 17:24:41,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-13 17:24:41,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:24:41,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 17:24:41,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-13 17:24:41,165 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-13 17:24:41,166 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2025-04-13 17:24:41,167 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2025-04-13 17:24:41,167 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2025-04-13 17:24:41,167 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2025-04-13 17:24:41,167 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2025-04-13 17:24:41,167 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2025-04-13 17:24:41,167 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 17:24:41,170 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1] [2025-04-13 17:24:41,221 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 17:24:41,221 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 17:24:41,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 05:24:41 BasicIcfg [2025-04-13 17:24:41,227 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 17:24:41,228 INFO L158 Benchmark]: Toolchain (without parser) took 5819.61ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 96.0MB in the beginning and 241.1MB in the end (delta: -145.1MB). Peak memory consumption was 27.1MB. Max. memory is 8.0GB. [2025-04-13 17:24:41,228 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:24:41,228 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.31ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 61.9MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2025-04-13 17:24:41,228 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.06ms. Allocated memory is still 142.6MB. Free memory was 61.9MB in the beginning and 59.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:24:41,230 INFO L158 Benchmark]: Boogie Preprocessor took 47.94ms. Allocated memory is still 142.6MB. Free memory was 59.2MB in the beginning and 55.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 17:24:41,230 INFO L158 Benchmark]: RCFGBuilder took 636.46ms. Allocated memory is still 142.6MB. Free memory was 55.9MB in the beginning and 65.6MB in the end (delta: -9.6MB). Peak memory consumption was 42.0MB. Max. memory is 8.0GB. [2025-04-13 17:24:41,230 INFO L158 Benchmark]: TraceAbstraction took 4566.31ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 64.9MB in the beginning and 241.1MB in the end (delta: -176.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:24:41,231 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 521.31ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 61.9MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.06ms. Allocated memory is still 142.6MB. Free memory was 61.9MB in the beginning and 59.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 47.94ms. Allocated memory is still 142.6MB. Free memory was 59.2MB in the beginning and 55.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 636.46ms. Allocated memory is still 142.6MB. Free memory was 55.9MB in the beginning and 65.6MB in the end (delta: -9.6MB). Peak memory consumption was 42.0MB. Max. memory is 8.0GB. * TraceAbstraction took 4566.31ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 64.9MB in the beginning and 241.1MB in the end (delta: -176.2MB). 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; [L3950] CALL, EXPR 0 my_drv_init() [L3944] 0 return 0; [L3950] RET, EXPR 0 my_drv_init() [L3950] 0 int ret = my_drv_init(); [L3951] COND TRUE 0 ret==0 [L3952] 0 int probe_ret; [L3953] 0 struct my_data data; [L3954] CALL, EXPR 0 my_drv_probe(&data) [L3920] 0 struct device *d = &data->dev; [L3924] 0 data->shared.a = 0 [L3925] 0 data->shared.b = 0 [L3926] 0 int res = __VERIFIER_nondet_int(); [L3927] COND FALSE 0 !(\read(res)) [L3930] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\at(arg, Pre)={5:24}, \at(data, Pre)={5:0}, d={5:24}, data={5:0}, 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) );}) [L3908] 1 data->shared.a = 1 VAL [\at(arg, Pre)={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1=-1, t2=0] [L3911] EXPR 1 data->shared.b [L3911] 1 int lb = data->shared.b; [L3931] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\at(arg, Pre)={5:24}, \at(data, Pre)={5:0}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, res=0, t1=-1, t2=0] [L3932] 0 return 0; [L3954] RET, EXPR 0 my_drv_probe(&data) [L3954] 0 probe_ret = my_drv_probe(&data) [L3955] COND TRUE 0 probe_ret==0 [L3956] CALL 0 my_drv_disconnect(&data) [L3938] 0 void *status; VAL [\at(arg, Pre)={5:24}, \at(data, Pre)={5:0}, arg={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={3:0}, t1=-1, t2=0] [L3902] 2 struct device *dev = (struct device*)arg; [L3903] 2 struct my_data *data; [L3904] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 2 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3908] 2 data->shared.a = 1 VAL [\at(arg, Pre)={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1=-1, t2=0] [L3911] EXPR 2 data->shared.b [L3911] 2 int lb = data->shared.b; [L3914] 2 data->shared.b = lb + 1 VAL [\at(arg, Pre)={5:24}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1=-1, t2=0] [L3917] 2 return 0; [L3914] 1 data->shared.b = lb + 1 VAL [\at(arg, Pre)={5:24}, \result={0:0}, arg={5:24}, data={5:0}, dev={5:24}, lb=0, t1=-1, t2=0] [L3917] 1 return 0; [L3939] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\at(arg, Pre)={5:24}, \at(data, Pre)={5:0}, \result={0:0}, arg={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={3:0}, t1=-1, t2=0] [L3940] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\at(arg, Pre)={5:24}, \at(data, Pre)={5:0}, \result={0:0}, arg={5:24}, data={5:0}, data={5:0}, dev={5:24}, lb=0, status={3:0}, t1=-1, t2=0] [L3956] RET 0 my_drv_disconnect(&data) [L3957] EXPR 0 data.shared.a [L3957] CALL 0 ldv_assert(data.shared.a==1) [L3887] COND FALSE 0 !(!expression) [L3957] RET 0 ldv_assert(data.shared.a==1) [L3958] EXPR 0 data.shared.b [L3958] CALL 0 ldv_assert(data.shared.b==2) [L3887] COND TRUE 0 !expression [L3887] 0 reach_error() VAL [\at(arg, Pre)={5:24}, \at(expression, Pre)=0, \result={0:0}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, lb=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: 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: 3931]: 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, 34 locations, 41 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 228 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 992 IncrementalHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 0 mSDtfsCounter, 992 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=212occurred in iteration=0, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 69 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-04-13 17:24:41,248 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...