/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.datarace-free-lbe-02cf818-m [2023-11-17 15:21:18,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 15:21:18,628 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2023-11-17 15:21:18,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 15:21:18,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 15:21:18,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 15:21:18,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 15:21:18,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 15:21:18,666 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 15:21:18,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 15:21:18,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 15:21:18,666 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 15:21:18,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 15:21:18,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 15:21:18,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 15:21:18,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 15:21:18,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 15:21:18,668 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 15:21:18,668 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 15:21:18,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 15:21:18,668 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 15:21:18,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 15:21:18,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 15:21:18,673 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-17 15:21:18,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 15:21:18,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:21:18,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 15:21:18,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 15:21:18,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 15:21:18,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 15:21:18,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 15:21:18,678 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-17 15:21:18,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-11-17 15:21:18,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 15:21:18,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 15:21:18,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 15:21:18,891 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 15:21:18,891 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 15:21:18,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/bounded_buffer.i [2023-11-17 15:21:20,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 15:21:20,278 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 15:21:20,279 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i [2023-11-17 15:21:20,293 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91b14fd83/2fbfa76eb5b54442820d79aebeeafbb8/FLAG9f922a7ee [2023-11-17 15:21:20,303 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91b14fd83/2fbfa76eb5b54442820d79aebeeafbb8 [2023-11-17 15:21:20,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 15:21:20,306 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-17 15:21:20,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 15:21:20,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 15:21:20,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 15:21:20,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:20,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194f59dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20, skipping insertion in model container [2023-11-17 15:21:20,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:20,373 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 15:21:20,814 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i[70002,70015] [2023-11-17 15:21:20,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:21:20,840 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 15:21:20,879 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/bounded_buffer.i[70002,70015] [2023-11-17 15:21:20,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 15:21:20,972 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-17 15:21:20,977 INFO L206 MainTranslator]: Completed translation [2023-11-17 15:21:20,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20 WrapperNode [2023-11-17 15:21:20,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 15:21:20,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 15:21:20,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 15:21:20,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 15:21:20,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,062 INFO L138 Inliner]: procedures = 429, calls = 136, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 476 [2023-11-17 15:21:21,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 15:21:21,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 15:21:21,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 15:21:21,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 15:21:21,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,115 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 15:21:21,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 15:21:21,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 15:21:21,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 15:21:21,128 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (1/1) ... [2023-11-17 15:21:21,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 15:21:21,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-17 15:21:21,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 15:21:21,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 15:21:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2023-11-17 15:21:21,197 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2023-11-17 15:21:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 15:21:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 15:21:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 15:21:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-17 15:21:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-17 15:21:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 15:21:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-17 15:21:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 15:21:21,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 15:21:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 15:21:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-17 15:21:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2023-11-17 15:21:21,198 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2023-11-17 15:21:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-17 15:21:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 15:21:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 15:21:21,199 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 15:21:21,375 INFO L239 CfgBuilder]: Building ICFG [2023-11-17 15:21:21,376 INFO L265 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 15:21:21,800 INFO L280 CfgBuilder]: Performing block encoding [2023-11-17 15:21:21,822 INFO L302 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 15:21:21,822 INFO L307 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-17 15:21:21,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:21:21 BoogieIcfgContainer [2023-11-17 15:21:21,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 15:21:21,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 15:21:21,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 15:21:21,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 15:21:21,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:21:20" (1/3) ... [2023-11-17 15:21:21,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abdae34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:21:21, skipping insertion in model container [2023-11-17 15:21:21,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:21:20" (2/3) ... [2023-11-17 15:21:21,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abdae34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:21:21, skipping insertion in model container [2023-11-17 15:21:21,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:21:21" (3/3) ... [2023-11-17 15:21:21,829 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2023-11-17 15:21:21,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 15:21:21,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-17 15:21:21,842 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 15:21:21,923 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-17 15:21:21,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 437 places, 481 transitions, 982 flow [2023-11-17 15:21:22,151 INFO L124 PetriNetUnfolderBase]: 109/1041 cut-off events. [2023-11-17 15:21:22,151 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-17 15:21:22,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 1041 events. 109/1041 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6228 event pairs, 0 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 550. Up to 16 conditions per place. [2023-11-17 15:21:22,184 INFO L82 GeneralOperation]: Start removeDead. Operand has 437 places, 481 transitions, 982 flow [2023-11-17 15:21:22,193 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 437 places, 481 transitions, 982 flow [2023-11-17 15:21:22,195 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:21:22,211 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 437 places, 481 transitions, 982 flow [2023-11-17 15:21:22,213 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 437 places, 481 transitions, 982 flow [2023-11-17 15:21:22,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 437 places, 481 transitions, 982 flow [2023-11-17 15:21:22,355 INFO L124 PetriNetUnfolderBase]: 109/1041 cut-off events. [2023-11-17 15:21:22,355 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-17 15:21:22,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 1041 events. 109/1041 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6228 event pairs, 0 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 550. Up to 16 conditions per place. [2023-11-17 15:21:22,408 INFO L119 LiptonReduction]: Number of co-enabled transitions 110760 [2023-11-17 15:22:37,590 WARN L293 SmtUtils]: Spent 33.95s on a formula simplification. DAG size of input: 212 DAG size of output: 192 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:22:48,807 WARN L293 SmtUtils]: Spent 11.21s on a formula simplification that was a NOOP. DAG size: 176 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:23:26,794 WARN L293 SmtUtils]: Spent 37.98s on a formula simplification. DAG size of input: 216 DAG size of output: 195 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:23:39,879 WARN L293 SmtUtils]: Spent 13.08s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:24:11,255 WARN L293 SmtUtils]: Spent 31.09s on a formula simplification that was a NOOP. DAG size: 255 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:24:32,408 WARN L293 SmtUtils]: Spent 21.15s on a formula simplification that was a NOOP. DAG size: 231 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:25:05,241 WARN L293 SmtUtils]: Spent 32.83s on a formula simplification that was a NOOP. DAG size: 258 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:25:28,988 WARN L293 SmtUtils]: Spent 23.74s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:25:29,119 INFO L134 LiptonReduction]: Checked pairs total: 260044 [2023-11-17 15:25:29,119 INFO L136 LiptonReduction]: Total number of compositions: 498 [2023-11-17 15:25:29,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-17 15:25:29,131 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@702a62cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 15:25:29,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-17 15:25:29,137 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-17 15:25:29,137 INFO L124 PetriNetUnfolderBase]: 6/57 cut-off events. [2023-11-17 15:25:29,137 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-17 15:25:29,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-17 15:25:29,138 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2023-11-17 15:25:29,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-17 15:25:29,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 15:25:29,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1707803873, now seen corresponding path program 1 times [2023-11-17 15:25:29,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 15:25:29,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738199839] [2023-11-17 15:25:29,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 15:25:29,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 15:25:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 15:25:29,350 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-17 15:25:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-17 15:25:29,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-17 15:25:29,434 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-17 15:25:29,435 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-11-17 15:25:29,438 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-11-17 15:25:29,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-17 15:25:29,439 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-11-17 15:25:29,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 15:25:29,440 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-17 15:25:29,444 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-17 15:25:29,444 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-17 15:25:29,521 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-17 15:25:29,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 673 places, 742 transitions, 1528 flow [2023-11-17 15:25:30,392 INFO L124 PetriNetUnfolderBase]: 384/3387 cut-off events. [2023-11-17 15:25:30,393 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-17 15:25:30,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3476 conditions, 3387 events. 384/3387 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27385 event pairs, 2 based on Foata normal form. 0/3010 useless extension candidates. Maximal degree in co-relation 1900. Up to 64 conditions per place. [2023-11-17 15:25:30,475 INFO L82 GeneralOperation]: Start removeDead. Operand has 673 places, 742 transitions, 1528 flow [2023-11-17 15:25:30,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 673 places, 742 transitions, 1528 flow [2023-11-17 15:25:30,503 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-17 15:25:30,503 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 673 places, 742 transitions, 1528 flow [2023-11-17 15:25:30,503 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 673 places, 742 transitions, 1528 flow [2023-11-17 15:25:30,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 673 places, 742 transitions, 1528 flow [2023-11-17 15:25:31,325 INFO L124 PetriNetUnfolderBase]: 384/3387 cut-off events. [2023-11-17 15:25:31,326 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-17 15:25:31,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3476 conditions, 3387 events. 384/3387 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 27385 event pairs, 2 based on Foata normal form. 0/3010 useless extension candidates. Maximal degree in co-relation 1900. Up to 64 conditions per place. [2023-11-17 15:25:31,650 INFO L119 LiptonReduction]: Number of co-enabled transitions 356644 [2023-11-17 15:28:04,127 WARN L293 SmtUtils]: Spent 16.22s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:28:12,786 WARN L293 SmtUtils]: Spent 8.66s on a formula simplification that was a NOOP. DAG size: 171 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:28:23,595 WARN L293 SmtUtils]: Spent 10.81s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:28:30,566 WARN L293 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 171 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:29:04,171 WARN L293 SmtUtils]: Spent 31.69s on a formula simplification that was a NOOP. DAG size: 255 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:29:28,493 WARN L293 SmtUtils]: Spent 24.32s on a formula simplification that was a NOOP. DAG size: 245 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:30:05,799 WARN L293 SmtUtils]: Spent 37.30s on a formula simplification that was a NOOP. DAG size: 255 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-17 15:30:34,932 WARN L293 SmtUtils]: Spent 29.13s on a formula simplification that was a NOOP. DAG size: 245 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Received shutdown request... [2023-11-17 15:30:58,797 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-11-17 15:30:58,808 WARN L235 SmtUtils]: Removed 4 from assertion stack [2023-11-17 15:30:58,809 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-11-17 15:30:58,810 INFO L158 Benchmark]: Toolchain (without parser) took 578504.16ms. Allocated memory was 239.1MB in the beginning and 431.0MB in the end (delta: 191.9MB). Free memory was 184.8MB in the beginning and 133.0MB in the end (delta: 51.9MB). Peak memory consumption was 393.7MB. Max. memory is 8.0GB. [2023-11-17 15:30:58,810 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-11-17 15:30:58,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 671.57ms. Allocated memory is still 239.1MB. Free memory was 184.5MB in the beginning and 180.1MB in the end (delta: 4.4MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-11-17 15:30:58,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.84ms. Allocated memory is still 239.1MB. Free memory was 180.1MB in the beginning and 175.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-11-17 15:30:58,811 INFO L158 Benchmark]: Boogie Preprocessor took 62.90ms. Allocated memory is still 239.1MB. Free memory was 175.4MB in the beginning and 171.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-11-17 15:30:58,811 INFO L158 Benchmark]: RCFGBuilder took 696.78ms. Allocated memory is still 239.1MB. Free memory was 171.8MB in the beginning and 127.7MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2023-11-17 15:30:58,812 INFO L158 Benchmark]: TraceAbstraction took 576984.38ms. Allocated memory was 239.1MB in the beginning and 431.0MB in the end (delta: 191.9MB). Free memory was 126.7MB in the beginning and 133.0MB in the end (delta: -6.3MB). Peak memory consumption was 334.0MB. Max. memory is 8.0GB. [2023-11-17 15:30:58,813 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 671.57ms. Allocated memory is still 239.1MB. Free memory was 184.5MB in the beginning and 180.1MB in the end (delta: 4.4MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 83.84ms. Allocated memory is still 239.1MB. Free memory was 180.1MB in the beginning and 175.4MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.90ms. Allocated memory is still 239.1MB. Free memory was 175.4MB in the beginning and 171.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 696.78ms. Allocated memory is still 239.1MB. Free memory was 171.8MB in the beginning and 127.7MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * TraceAbstraction took 576984.38ms. Allocated memory was 239.1MB in the beginning and 431.0MB in the end (delta: 191.9MB). Free memory was 126.7MB in the beginning and 133.0MB in the end (delta: -6.3MB). Peak memory consumption was 334.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 246.9s, 437 PlacesBefore, 113 PlacesAfterwards, 481 TransitionsBefore, 139 TransitionsAfterwards, 110760 CoEnabledTransitionPairs, 9 FixpointIterations, 66 TrivialSequentialCompositions, 286 ConcurrentSequentialCompositions, 15 TrivialYvCompositions, 113 ConcurrentYvCompositions, 18 ChoiceCompositions, 498 TotalNumberOfCompositions, 260044 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 110970, independent: 109329, independent conditional: 0, independent unconditional: 109329, dependent: 1631, dependent conditional: 0, dependent unconditional: 1631, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 75146, independent: 74781, independent conditional: 0, independent unconditional: 74781, dependent: 355, dependent conditional: 0, dependent unconditional: 355, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 75146, independent: 74051, independent conditional: 0, independent unconditional: 74051, dependent: 1095, dependent conditional: 0, dependent unconditional: 1095, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1095, independent: 730, independent conditional: 0, independent unconditional: 730, dependent: 355, dependent conditional: 0, dependent unconditional: 355, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , SemanticIndependenceRelation.Query Time [ms]: [ total: 24572, independent: 634, independent conditional: 0, independent unconditional: 634, dependent: 2530, dependent conditional: 0, dependent unconditional: 2530, unknown: 21408, unknown conditional: 0, unknown unconditional: 21408] ], Cache Queries: [ total: 110970, independent: 34548, independent conditional: 0, independent unconditional: 34548, dependent: 1276, dependent conditional: 0, dependent unconditional: 1276, unknown: 75146, unknown conditional: 0, unknown unconditional: 75146] , Statistics on independence cache: Total cache size (in pairs): 2869, Positive cache size: 2704, Positive conditional cache size: 0, Positive unconditional cache size: 2704, Negative cache size: 165, Negative conditional cache size: 0, Negative unconditional cache size: 165, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while CegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 673 places, 742 transitions, 1528 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 673 places, 742 transitions, 1528 flow and 36456 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 249 for 23029ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown