/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_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:18:49,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:18:49,649 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 [2025-04-14 00:18:49,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:18:49,654 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:18:49,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:18:49,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:18:49,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:18:49,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:18:49,679 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:18:49,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:18:49,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:18:49,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:18:49,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:18:49,680 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:18:49,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:18:49,681 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:18:49,681 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:18:49,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:18:49,682 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 -> PETRI_NET Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-14 00:18:49,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:18:49,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:18:49,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:18:49,919 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:18:49,919 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:18:49,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2025-04-14 00:18:51,191 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b1b4159/b06d600e3c5943fca304a5129b478a7d/FLAG3c368a7a0 [2025-04-14 00:18:51,435 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:18:51,435 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2025-04-14 00:18:51,445 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b1b4159/b06d600e3c5943fca304a5129b478a7d/FLAG3c368a7a0 [2025-04-14 00:18:52,191 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b1b4159/b06d600e3c5943fca304a5129b478a7d [2025-04-14 00:18:52,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:18:52,195 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:18:52,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:18:52,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:18:52,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:18:52,199 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,200 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341a4de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52, skipping insertion in model container [2025-04-14 00:18:52,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:18:52,387 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2025-04-14 00:18:52,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:18:52,541 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:18:52,561 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2025-04-14 00:18:52,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:18:52,633 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:18:52,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52 WrapperNode [2025-04-14 00:18:52,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:18:52,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:18:52,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:18:52,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:18:52,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,673 INFO L138 Inliner]: procedures = 163, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2025-04-14 00:18:52,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:18:52,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:18:52,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:18:52,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:18:52,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,684 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,700 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2025-04-14 00:18:52,700 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,706 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,707 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:18:52,714 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:18:52,714 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:18:52,714 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:18:52,715 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (1/1) ... [2025-04-14 00:18:52,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:18:52,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:18:52,778 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) [2025-04-14 00:18:52,783 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 [2025-04-14 00:18:52,800 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-14 00:18:52,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:18:52,801 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-04-14 00:18:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-04-14 00:18:52,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:18:52,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-14 00:18:52,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-14 00:18:52,802 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-14 00:18:52,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:18:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:18:52,803 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 00:18:52,901 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:18:52,902 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:18:53,040 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:18:53,041 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:18:53,041 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:18:53,184 WARN L179 LargeBlockEncoding]: Complex 2:2 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-04-14 00:18:53,188 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:18:53,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:18:53 BoogieIcfgContainer [2025-04-14 00:18:53,189 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:18:53,190 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:18:53,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:18:53,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:18:53,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:18:52" (1/3) ... [2025-04-14 00:18:53,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54eb80c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:18:53, skipping insertion in model container [2025-04-14 00:18:53,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:18:52" (2/3) ... [2025-04-14 00:18:53,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54eb80c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:18:53, skipping insertion in model container [2025-04-14 00:18:53,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:18:53" (3/3) ... [2025-04-14 00:18:53,197 INFO L128 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2025-04-14 00:18:53,207 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:18:53,208 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i that has 2 procedures, 27 locations, 27 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-14 00:18:53,209 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:18:53,241 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-14 00:18:53,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions, 60 flow [2025-04-14 00:18:53,290 INFO L116 PetriNetUnfolderBase]: 2/27 cut-off events. [2025-04-14 00:18:53,292 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:18:53,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 27 events. 2/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2025-04-14 00:18:53,293 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 28 transitions, 60 flow [2025-04-14 00:18:53,295 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 21 transitions, 45 flow [2025-04-14 00:18:53,300 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:18:53,308 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=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;@6361eee5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:18:53,308 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-14 00:18:53,311 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:18:53,311 INFO L116 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-04-14 00:18:53,312 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:18:53,312 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:18:53,313 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:18:53,313 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 00:18:53,317 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:18:53,318 INFO L85 PathProgramCache]: Analyzing trace with hash 496183296, now seen corresponding path program 1 times [2025-04-14 00:18:53,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:18:53,323 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495812089] [2025-04-14 00:18:53,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:18:53,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:18:53,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-14 00:18:53,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-14 00:18:53,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:18:53,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-14 00:18:53,416 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-14 00:18:53,423 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-14 00:18:53,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-14 00:18:53,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:18:53,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-14 00:18:53,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-14 00:18:53,459 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-14 00:18:53,460 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-04-14 00:18:53,462 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-04-14 00:18:53,463 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:18:53,464 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-14 00:18:53,494 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 00:18:53,495 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 00:18:53,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 12:18:53 BasicIcfg [2025-04-14 00:18:53,500 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 00:18:53,501 INFO L158 Benchmark]: Toolchain (without parser) took 1306.31ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 35.7MB in the end (delta: 82.8MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. [2025-04-14 00:18:53,501 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:18:53,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.08ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 95.6MB in the end (delta: 23.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-14 00:18:53,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.63ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 93.2MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 00:18:53,502 INFO L158 Benchmark]: Boogie Preprocessor took 39.20ms. Allocated memory is still 167.8MB. Free memory was 93.2MB in the beginning and 91.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:18:53,502 INFO L158 Benchmark]: IcfgBuilder took 474.60ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 57.3MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2025-04-14 00:18:53,502 INFO L158 Benchmark]: TraceAbstraction took 310.35ms. Allocated memory is still 167.8MB. Free memory was 56.7MB in the beginning and 35.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2025-04-14 00:18:53,505 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 439.08ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 95.6MB in the end (delta: 23.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.63ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 93.2MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.20ms. Allocated memory is still 167.8MB. Free memory was 93.2MB in the beginning and 91.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 474.60ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 57.3MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 310.35ms. Allocated memory is still 167.8MB. Free memory was 56.7MB in the beginning and 35.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, \at(arg, Pre)={0:0}, g=42, id=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \at(arg, Pre)={0:0}, \at(cond, Pre)=0, cond=0, g=42] - UnprovableResult [Line: 697]: 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 3 procedures, 38 locations, 38 edges, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-04-14 00:18:53,518 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...