/usr/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 04:06:02,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:06:02,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:06:02,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:06:02,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:06:02,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:06:02,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:06:02,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:06:02,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:06:02,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:06:02,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:06:02,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:06:02,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:06:02,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:06:02,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:06:02,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:06:02,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:06:02,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:06:02,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:06:02,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:06:02,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:06:02,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:06:02,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:06:02,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:06:02,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:06:02,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:06:02,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:06:02,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:06:02,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:06:02,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:06:02,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:06:02,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:06:02,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:06:02,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:06:02,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:06:02,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:06:02,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:06:02,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:06:02,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:06:02,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:06:02,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:06:02,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:06:02,304 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:06:02,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:06:02,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:06:02,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:06:02,306 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:06:02,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:06:02,307 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:06:02,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:06:02,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:06:02,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:06:02,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:06:02,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:06:02,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:06:02,308 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:06:02,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:06:02,308 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:06:02,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:06:02,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:06:02,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:06:02,308 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:06:02,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:06:02,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:06:02,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:06:02,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:06:02,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:06:02,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:06:02,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:06:02,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:06:02,309 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:06:02,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:06:02,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:06:02,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:06:02,579 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:06:02,580 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:06:02,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2022-12-06 04:06:03,621 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:06:03,823 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:06:03,823 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2022-12-06 04:06:03,842 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/607a2014d/2d519c58cada4a019e71ea59ce10e4a1/FLAG7d110ae59 [2022-12-06 04:06:03,854 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/607a2014d/2d519c58cada4a019e71ea59ce10e4a1 [2022-12-06 04:06:03,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:06:03,856 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:06:03,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:06:03,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:06:03,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:06:03,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:06:03" (1/1) ... [2022-12-06 04:06:03,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581f23c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:03, skipping insertion in model container [2022-12-06 04:06:03,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:06:03" (1/1) ... [2022-12-06 04:06:03,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:06:03,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:06:04,152 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2022-12-06 04:06:04,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:06:04,166 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:06:04,198 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2022-12-06 04:06:04,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:06:04,235 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:06:04,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04 WrapperNode [2022-12-06 04:06:04,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:06:04,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:06:04,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:06:04,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:06:04,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,280 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-12-06 04:06:04,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:06:04,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:06:04,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:06:04,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:06:04,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,314 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:06:04,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:06:04,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:06:04,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:06:04,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (1/1) ... [2022-12-06 04:06:04,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:06:04,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:06:04,343 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) [2022-12-06 04:06:04,350 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 [2022-12-06 04:06:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 04:06:04,381 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 04:06:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 04:06:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 04:06:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 04:06:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:06:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 04:06:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:06:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:06:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:06:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:06:04,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:06:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:06:04,384 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 04:06:04,493 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:06:04,494 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:06:04,673 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:06:04,678 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:06:04,682 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:06:04,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:06:04 BoogieIcfgContainer [2022-12-06 04:06:04,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:06:04,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:06:04,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:06:04,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:06:04,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:06:03" (1/3) ... [2022-12-06 04:06:04,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60055cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:06:04, skipping insertion in model container [2022-12-06 04:06:04,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:06:04" (2/3) ... [2022-12-06 04:06:04,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60055cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:06:04, skipping insertion in model container [2022-12-06 04:06:04,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:06:04" (3/3) ... [2022-12-06 04:06:04,689 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2022-12-06 04:06:04,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:06:04,703 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 04:06:04,703 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:06:04,766 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 04:06:04,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 89 transitions, 194 flow [2022-12-06 04:06:04,870 INFO L130 PetriNetUnfolder]: 1/87 cut-off events. [2022-12-06 04:06:04,871 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:04,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 87 events. 1/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-06 04:06:04,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 89 transitions, 194 flow [2022-12-06 04:06:04,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 77 transitions, 166 flow [2022-12-06 04:06:04,880 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:06:04,908 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 166 flow [2022-12-06 04:06:04,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 166 flow [2022-12-06 04:06:04,932 INFO L130 PetriNetUnfolder]: 0/77 cut-off events. [2022-12-06 04:06:04,932 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:04,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 77 events. 0/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-06 04:06:04,934 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 166 flow [2022-12-06 04:06:04,934 INFO L188 LiptonReduction]: Number of co-enabled transitions 732 [2022-12-06 04:06:08,376 INFO L203 LiptonReduction]: Total number of compositions: 54 [2022-12-06 04:06:08,386 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:06:08,391 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=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@60a9bb84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:06:08,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 04:06:08,395 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-06 04:06:08,395 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 04:06:08,395 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:06:08,395 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 04:06:08,396 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 04:06:08,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:06:08,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1235596550, now seen corresponding path program 1 times [2022-12-06 04:06:08,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:06:08,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496476616] [2022-12-06 04:06:08,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:06:08,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:06:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 04:06:08,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 04:06:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 04:06:08,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 04:06:08,571 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 04:06:08,572 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 04:06:08,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 04:06:08,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 04:06:08,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:06:08,574 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 04:06:08,578 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:06:08,578 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:06:08,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:06:08 BasicIcfg [2022-12-06 04:06:08,604 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:06:08,605 INFO L158 Benchmark]: Toolchain (without parser) took 4748.22ms. Allocated memory was 198.2MB in the beginning and 266.3MB in the end (delta: 68.2MB). Free memory was 172.3MB in the beginning and 211.0MB in the end (delta: -38.6MB). Peak memory consumption was 30.0MB. Max. memory is 8.0GB. [2022-12-06 04:06:08,605 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 198.2MB. Free memory was 174.0MB in the beginning and 173.8MB in the end (delta: 174.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:06:08,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.57ms. Allocated memory is still 198.2MB. Free memory was 171.8MB in the beginning and 151.9MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-06 04:06:08,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.14ms. Allocated memory is still 198.2MB. Free memory was 151.9MB in the beginning and 150.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:06:08,606 INFO L158 Benchmark]: Boogie Preprocessor took 34.66ms. Allocated memory is still 198.2MB. Free memory was 149.8MB in the beginning and 148.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 04:06:08,606 INFO L158 Benchmark]: RCFGBuilder took 366.94ms. Allocated memory is still 198.2MB. Free memory was 148.7MB in the beginning and 134.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 04:06:08,607 INFO L158 Benchmark]: TraceAbstraction took 3918.75ms. Allocated memory was 198.2MB in the beginning and 266.3MB in the end (delta: 68.2MB). Free memory was 133.5MB in the beginning and 211.0MB in the end (delta: -77.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:06:08,608 INFO L339 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 198.2MB. Free memory was 174.0MB in the beginning and 173.8MB in the end (delta: 174.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 378.57ms. Allocated memory is still 198.2MB. Free memory was 171.8MB in the beginning and 151.9MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.14ms. Allocated memory is still 198.2MB. Free memory was 151.9MB in the beginning and 150.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.66ms. Allocated memory is still 198.2MB. Free memory was 149.8MB in the beginning and 148.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 366.94ms. Allocated memory is still 198.2MB. Free memory was 148.7MB in the beginning and 134.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3918.75ms. Allocated memory was 198.2MB in the beginning and 266.3MB in the end (delta: 68.2MB). Free memory was 133.5MB in the beginning and 211.0MB in the end (delta: -77.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 84 PlacesBefore, 30 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 35 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 546, independent unconditional: 0, dependent: 57, dependent conditional: 57, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 464, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 464, independent: 415, independent conditional: 0, independent unconditional: 415, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 104, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 603, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 595, Positive cache size: 566, Positive conditional cache size: 0, Positive unconditional cache size: 566, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t1, 0, thread1, 0)=-2, t1={6:0}, t2={5:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t2, 0, thread2, 0)=-1, t1={6:0}, t2={5:0}] [L707] 2 data1+=5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=10, ma={3:0}, mb={4:0}] [L710] 2 data2-=6 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={3:0}, mb={4:0}] [L712] 2 return 0; [L697] 1 data1++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=4, ma={3:0}, mb={4:0}] [L700] 1 data2++ [L702] 1 return 0; [L723] 0 \read(t1) VAL [\read(t1)=-2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\read(t1)=-2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] 0 \read(t2) VAL [\read(t2)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\read(t2)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L725] COND TRUE 0 data1==16 && data2==5 [L727] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 119 locations, 3 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: 3.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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, 23 NumberOfCodeBlocks, 23 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 RESULT: Ultimate proved your program to be incorrect! [2022-12-06 04:06:08,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...