./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:07:25,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:07:25,342 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:07:25,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:07:25,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:07:25,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:07:25,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:07:25,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:07:25,376 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:07:25,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:07:25,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:07:25,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:07:25,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:07:25,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:07:25,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:07:25,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:07:25,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:07:25,382 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:07:25,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:07:25,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:07:25,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:07:25,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:07:25,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:07:25,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:07:25,387 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:07:25,387 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:07:25,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:07:25,388 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:07:25,388 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:07:25,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:07:25,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:07:25,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:07:25,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:07:25,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:07:25,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:07:25,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:07:25,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:07:25,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:07:25,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:07:25,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:07:25,392 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:07:25,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:07:25,392 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7757e6e73d857d492b029f13f86cb5d550622238e5a2b483c58ab6fc3ffdeb1 [2024-11-16 19:07:25,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:07:25,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:07:25,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:07:25,677 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:07:25,678 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:07:25,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i [2024-11-16 19:07:27,149 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:07:27,389 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:07:27,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i [2024-11-16 19:07:27,401 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/965fbc8fa/e53f352d4a3b4167803682931c84c8f6/FLAG467638d8f [2024-11-16 19:07:27,413 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/965fbc8fa/e53f352d4a3b4167803682931c84c8f6 [2024-11-16 19:07:27,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:07:27,417 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:07:27,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:07:27,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:07:27,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:07:27,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:27,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f1dd38d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27, skipping insertion in model container [2024-11-16 19:07:27,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:27,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:07:27,868 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i[30287,30300] [2024-11-16 19:07:27,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:07:27,888 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:07:27,940 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/28_buggy_simple_loop1_vf.i[30287,30300] [2024-11-16 19:07:27,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:07:27,983 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:07:27,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27 WrapperNode [2024-11-16 19:07:27,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:07:27,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:07:27,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:07:27,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:07:27,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,020 INFO L138 Inliner]: procedures = 166, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-11-16 19:07:28,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:07:28,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:07:28,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:07:28,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:07:28,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,036 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,048 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 19:07:28,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,049 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,052 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,053 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:07:28,057 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:07:28,057 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:07:28,058 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:07:28,058 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (1/1) ... [2024-11-16 19:07:28,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:07:28,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:07:28,147 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) [2024-11-16 19:07:28,160 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 [2024-11-16 19:07:28,205 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-16 19:07:28,205 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-16 19:07:28,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:07:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:07:28,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:07:28,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:07:28,208 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:07:28,316 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:07:28,318 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:07:28,425 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:07:28,425 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:07:28,494 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:07:28,495 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:07:28,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:07:28 BoogieIcfgContainer [2024-11-16 19:07:28,495 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:07:28,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:07:28,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:07:28,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:07:28,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:07:27" (1/3) ... [2024-11-16 19:07:28,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288b40af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:07:28, skipping insertion in model container [2024-11-16 19:07:28,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:07:27" (2/3) ... [2024-11-16 19:07:28,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288b40af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:07:28, skipping insertion in model container [2024-11-16 19:07:28,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:07:28" (3/3) ... [2024-11-16 19:07:28,501 INFO L112 eAbstractionObserver]: Analyzing ICFG 28_buggy_simple_loop1_vf.i [2024-11-16 19:07:28,515 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:07:28,516 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:07:28,516 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:07:28,571 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:07:28,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 32 transitions, 68 flow [2024-11-16 19:07:28,629 INFO L124 PetriNetUnfolderBase]: 10/37 cut-off events. [2024-11-16 19:07:28,632 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:07:28,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 37 events. 10/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 29. Up to 4 conditions per place. [2024-11-16 19:07:28,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 32 transitions, 68 flow [2024-11-16 19:07:28,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 32 transitions, 68 flow [2024-11-16 19:07:28,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:07:28,660 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f22ac53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:07:28,660 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-16 19:07:28,676 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:07:28,677 INFO L124 PetriNetUnfolderBase]: 6/27 cut-off events. [2024-11-16 19:07:28,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:07:28,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:07:28,678 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-16 19:07:28,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 19:07:28,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:07:28,688 INFO L85 PathProgramCache]: Analyzing trace with hash -641653465, now seen corresponding path program 1 times [2024-11-16 19:07:28,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:07:28,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793860183] [2024-11-16 19:07:28,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:07:28,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:07:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:07:28,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:07:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:07:28,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:07:28,835 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:07:28,836 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2024-11-16 19:07:28,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-11-16 19:07:28,838 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-11-16 19:07:28,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:07:28,839 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 19:07:28,842 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 19:07:28,842 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 19:07:28,877 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:07:28,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 56 transitions, 122 flow [2024-11-16 19:07:28,902 INFO L124 PetriNetUnfolderBase]: 19/67 cut-off events. [2024-11-16 19:07:28,902 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 19:07:28,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 67 events. 19/67 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 162 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 52. Up to 6 conditions per place. [2024-11-16 19:07:28,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 56 transitions, 122 flow [2024-11-16 19:07:28,907 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 56 transitions, 122 flow [2024-11-16 19:07:28,909 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:07:28,911 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1f22ac53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:07:28,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-16 19:07:28,920 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:07:28,921 INFO L124 PetriNetUnfolderBase]: 6/29 cut-off events. [2024-11-16 19:07:28,921 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 19:07:28,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:07:28,921 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:07:28,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-16 19:07:28,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:07:28,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1534368644, now seen corresponding path program 1 times [2024-11-16 19:07:28,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:07:28,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191258030] [2024-11-16 19:07:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:07:28,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:07:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:07:29,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:07:29,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:07:29,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191258030] [2024-11-16 19:07:29,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191258030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:07:29,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:07:29,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:07:29,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365378018] [2024-11-16 19:07:29,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:07:29,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 19:07:29,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:07:29,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 19:07:29,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 19:07:29,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 56 [2024-11-16 19:07:29,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 56 transitions, 122 flow. Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 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) [2024-11-16 19:07:29,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:07:29,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 56 [2024-11-16 19:07:29,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:07:29,218 INFO L124 PetriNetUnfolderBase]: 225/527 cut-off events. [2024-11-16 19:07:29,219 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-16 19:07:29,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 527 events. 225/527 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2879 event pairs, 108 based on Foata normal form. 158/635 useless extension candidates. Maximal degree in co-relation 165. Up to 300 conditions per place. [2024-11-16 19:07:29,228 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 19 selfloop transitions, 0 changer transitions 0/45 dead transitions. [2024-11-16 19:07:29,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 138 flow [2024-11-16 19:07:29,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 19:07:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 19:07:29,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 81 transitions. [2024-11-16 19:07:29,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7232142857142857 [2024-11-16 19:07:29,240 INFO L175 Difference]: Start difference. First operand has 44 places, 56 transitions, 122 flow. Second operand 2 states and 81 transitions. [2024-11-16 19:07:29,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 138 flow [2024-11-16 19:07:29,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 45 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:07:29,245 INFO L231 Difference]: Finished difference. Result has 43 places, 45 transitions, 100 flow [2024-11-16 19:07:29,247 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=100, PETRI_PLACES=43, PETRI_TRANSITIONS=45} [2024-11-16 19:07:29,250 INFO L277 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2024-11-16 19:07:29,250 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 45 transitions, 100 flow [2024-11-16 19:07:29,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 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) [2024-11-16 19:07:29,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:07:29,250 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:07:29,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:07:29,251 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-16 19:07:29,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:07:29,252 INFO L85 PathProgramCache]: Analyzing trace with hash -321774578, now seen corresponding path program 1 times [2024-11-16 19:07:29,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:07:29,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88626053] [2024-11-16 19:07:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:07:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:07:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:07:29,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:07:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:07:29,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:07:29,342 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:07:29,342 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-16 19:07:29,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-11-16 19:07:29,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-16 19:07:29,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-11-16 19:07:29,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:07:29,343 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-16 19:07:29,377 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-11-16 19:07:29,378 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:07:29,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:07:29 BasicIcfg [2024-11-16 19:07:29,384 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:07:29,385 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:07:29,385 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:07:29,386 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:07:29,387 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:07:28" (3/4) ... [2024-11-16 19:07:29,388 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-16 19:07:29,438 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:07:29,438 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:07:29,439 INFO L158 Benchmark]: Toolchain (without parser) took 2022.16ms. Allocated memory is still 188.7MB. Free memory was 120.9MB in the beginning and 75.2MB in the end (delta: 45.8MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2024-11-16 19:07:29,439 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 188.7MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:07:29,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.37ms. Allocated memory is still 188.7MB. Free memory was 120.7MB in the beginning and 98.8MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-16 19:07:29,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.31ms. Allocated memory is still 188.7MB. Free memory was 98.8MB in the beginning and 97.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:07:29,440 INFO L158 Benchmark]: Boogie Preprocessor took 35.39ms. Allocated memory is still 188.7MB. Free memory was 97.0MB in the beginning and 95.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:07:29,441 INFO L158 Benchmark]: IcfgBuilder took 437.83ms. Allocated memory is still 188.7MB. Free memory was 95.3MB in the beginning and 145.4MB in the end (delta: -50.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2024-11-16 19:07:29,441 INFO L158 Benchmark]: TraceAbstraction took 887.51ms. Allocated memory is still 188.7MB. Free memory was 144.4MB in the beginning and 77.2MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-16 19:07:29,445 INFO L158 Benchmark]: Witness Printer took 53.68ms. Allocated memory is still 188.7MB. Free memory was 77.2MB in the beginning and 75.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:07:29,447 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 188.7MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.37ms. Allocated memory is still 188.7MB. Free memory was 120.7MB in the beginning and 98.8MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.31ms. Allocated memory is still 188.7MB. Free memory was 98.8MB in the beginning and 97.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.39ms. Allocated memory is still 188.7MB. Free memory was 97.0MB in the beginning and 95.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 437.83ms. Allocated memory is still 188.7MB. Free memory was 95.3MB in the beginning and 145.4MB in the end (delta: -50.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * TraceAbstraction took 887.51ms. Allocated memory is still 188.7MB. Free memory was 144.4MB in the beginning and 77.2MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Witness Printer took 53.68ms. Allocated memory is still 188.7MB. Free memory was 77.2MB in the beginning and 75.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L700] 0 pthread_t t; [L701] COND TRUE 0 1 [L703] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [\old(arg)={0:0}, t=-1] [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L686] 1 unsigned int x=__VERIFIER_nondet_uint(), y=__VERIFIER_nondet_uint(), z=__VERIFIER_nondet_uint(); [L687] 1 int i, j=1, k=1; [L688] 1 i=0 VAL [\old(arg)={0:0}, arg={0:0}, i=0, j=1, k=1] [L688] COND FALSE 1 !(i