/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-12 15:01:55,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 15:01:55,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 15:01:55,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-12 15:01:55,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-12 15:01:55,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-12 15:01:55,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-12 15:01:55,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-12 15:01:55,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-12 15:01:55,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-12 15:01:55,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-12 15:01:55,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-12 15:01:55,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 15:01:55,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 15:01:55,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 15:01:55,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 15:01:55,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 15:01:55,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 15:01:55,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 15:01:55,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 15:01:55,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 15:01:55,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 15:01:55,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 15:01:55,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 15:01:55,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 15:01:55,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 15:01:55,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 15:01:55,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 15:01:55,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 15:01:55,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-12 15:01:55,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 15:01:55,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 15:01:55,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 15:01:55,337 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-SemanticLbe.epf [2022-12-12 15:01:55,352 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 15:01:55,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 15:01:55,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 15:01:55,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 15:01:55,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 15:01:55,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 15:01:55,353 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 15:01:55,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 15:01:55,353 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 15:01:55,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 15:01:55,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 15:01:55,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 15:01:55,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 15:01:55,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 15:01:55,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 15:01:55,354 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 15:01:55,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 15:01:55,354 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 15:01:55,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 15:01:55,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 15:01:55,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 15:01:55,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 15:01:55,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 15:01:55,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:01:55,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 15:01:55,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 15:01:55,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 15:01:55,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 15:01:55,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 15:01:55,356 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 15:01:55,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-12 15:01:55,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 15:01:55,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 15:01:55,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 15:01:55,606 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 15:01:55,606 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 15:01:55,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-12 15:01:56,621 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 15:01:56,850 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 15:01:56,851 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-12 15:01:56,863 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfed04a88/a9be4d9e86794589a105ddf6acc86f23/FLAG2f8bda246 [2022-12-12 15:01:56,875 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfed04a88/a9be4d9e86794589a105ddf6acc86f23 [2022-12-12 15:01:56,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 15:01:56,881 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 15:01:56,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 15:01:56,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 15:01:56,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 15:01:56,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:01:56" (1/1) ... [2022-12-12 15:01:56,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa2dabb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:56, skipping insertion in model container [2022-12-12 15:01:56,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 03:01:56" (1/1) ... [2022-12-12 15:01:56,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 15:01:56,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 15:01:57,018 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-12-12 15:01:57,237 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-12 15:01:57,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:01:57,252 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 15:01:57,261 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i[1103,1116] [2022-12-12 15:01:57,303 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-12 15:01:57,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 15:01:57,376 INFO L208 MainTranslator]: Completed translation [2022-12-12 15:01:57,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57 WrapperNode [2022-12-12 15:01:57,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 15:01:57,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 15:01:57,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 15:01:57,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 15:01:57,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,433 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-12-12 15:01:57,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 15:01:57,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 15:01:57,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 15:01:57,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 15:01:57,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 15:01:57,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 15:01:57,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 15:01:57,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 15:01:57,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (1/1) ... [2022-12-12 15:01:57,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 15:01:57,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 15:01:57,516 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) [2022-12-12 15:01:57,537 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 [2022-12-12 15:01:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-12 15:01:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-12-12 15:01:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-12-12 15:01:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-12 15:01:57,547 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-12 15:01:57,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 15:01:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 15:01:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 15:01:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 15:01:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 15:01:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 15:01:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 15:01:57,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 15:01:57,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 15:01:57,549 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 15:01:57,832 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 15:01:57,834 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 15:01:57,977 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 15:01:57,990 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 15:01:57,990 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-12 15:01:57,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:01:57 BoogieIcfgContainer [2022-12-12 15:01:57,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 15:01:57,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 15:01:57,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 15:01:57,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 15:01:57,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 03:01:56" (1/3) ... [2022-12-12 15:01:57,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f293359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:01:57, skipping insertion in model container [2022-12-12 15:01:57,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 03:01:57" (2/3) ... [2022-12-12 15:01:57,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f293359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 03:01:57, skipping insertion in model container [2022-12-12 15:01:57,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 03:01:57" (3/3) ... [2022-12-12 15:01:57,998 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-12 15:01:58,011 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 15:01:58,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-12 15:01:58,011 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 15:01:58,056 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-12 15:01:58,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2022-12-12 15:01:58,123 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2022-12-12 15:01:58,123 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-12 15:01:58,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2022-12-12 15:01:58,127 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2022-12-12 15:01:58,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 70 transitions, 149 flow [2022-12-12 15:01:58,132 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 15:01:58,145 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 70 transitions, 149 flow [2022-12-12 15:01:58,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 70 transitions, 149 flow [2022-12-12 15:01:58,167 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2022-12-12 15:01:58,167 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 15:01:58,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-12 15:01:58,170 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 70 transitions, 149 flow [2022-12-12 15:01:58,170 INFO L226 LiptonReduction]: Number of co-enabled transitions 552 [2022-12-12 15:02:01,412 INFO L241 LiptonReduction]: Total number of compositions: 59 [2022-12-12 15:02:01,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 15:02:01,435 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=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;@5671f64c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 15:02:01,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-12 15:02:01,442 INFO L130 PetriNetUnfolder]: 0/20 cut-off events. [2022-12-12 15:02:01,443 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-12 15:02:01,443 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 15:02:01,443 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 15:02:01,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-12 15:02:01,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 15:02:01,447 INFO L85 PathProgramCache]: Analyzing trace with hash 341228257, now seen corresponding path program 1 times [2022-12-12 15:02:01,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 15:02:01,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917455878] [2022-12-12 15:02:01,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 15:02:01,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 15:02:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 15:02:01,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-12 15:02:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-12 15:02:01,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-12 15:02:01,597 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-12 15:02:01,597 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-12 15:02:01,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-12 15:02:01,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-12 15:02:01,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-12 15:02:01,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 15:02:01,599 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-12 15:02:01,603 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 15:02:01,603 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 15:02:01,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 03:02:01 BasicIcfg [2022-12-12 15:02:01,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 15:02:01,618 INFO L158 Benchmark]: Toolchain (without parser) took 4736.70ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 148.9MB in the beginning and 81.9MB in the end (delta: 66.9MB). Peak memory consumption was 102.6MB. Max. memory is 8.0GB. [2022-12-12 15:02:01,618 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 175.1MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 15:02:01,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.89ms. Allocated memory is still 175.1MB. Free memory was 148.9MB in the beginning and 111.1MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-12-12 15:02:01,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.22ms. Allocated memory is still 175.1MB. Free memory was 111.1MB in the beginning and 108.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 15:02:01,619 INFO L158 Benchmark]: Boogie Preprocessor took 31.77ms. Allocated memory is still 175.1MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-12 15:02:01,619 INFO L158 Benchmark]: RCFGBuilder took 526.38ms. Allocated memory is still 175.1MB. Free memory was 105.9MB in the beginning and 85.4MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-12 15:02:01,619 INFO L158 Benchmark]: TraceAbstraction took 3622.07ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 84.4MB in the beginning and 81.9MB in the end (delta: 2.4MB). Peak memory consumption was 38.6MB. Max. memory is 8.0GB. [2022-12-12 15:02:01,621 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 175.1MB. Free memory is still 151.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 494.89ms. Allocated memory is still 175.1MB. Free memory was 148.9MB in the beginning and 111.1MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.22ms. Allocated memory is still 175.1MB. Free memory was 111.1MB in the beginning and 108.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.77ms. Allocated memory is still 175.1MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 526.38ms. Allocated memory is still 175.1MB. Free memory was 105.9MB in the beginning and 85.4MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 3622.07ms. Allocated memory was 175.1MB in the beginning and 210.8MB in the end (delta: 35.7MB). Free memory was 84.4MB in the beginning and 81.9MB in the end (delta: 2.4MB). Peak memory consumption was 38.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 77 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 24 TransitionsAfterwards, 552 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 25 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 568, independent: 535, independent conditional: 535, independent unconditional: 0, dependent: 33, dependent conditional: 33, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 568, independent: 535, independent conditional: 0, independent unconditional: 535, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 568, independent: 535, independent conditional: 0, independent unconditional: 535, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 568, independent: 535, independent conditional: 0, independent unconditional: 535, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 415, independent: 402, independent conditional: 0, independent unconditional: 402, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 415, independent: 386, independent conditional: 0, independent unconditional: 386, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 72, independent: 49, independent conditional: 0, independent unconditional: 49, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 568, independent: 133, independent conditional: 0, independent unconditional: 133, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 415, unknown conditional: 0, unknown unconditional: 415] , Statistics on independence cache: Total cache size (in pairs): 772, Positive cache size: 759, Positive conditional cache size: 0, Positive unconditional cache size: 759, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-2, ptr={0:0}, t1={6:0}, t2={5:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=-1, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=0, mut={3:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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: 1377]: 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, 118 locations, 4 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: 3.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred 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, 6 NumberOfCodeBlocks, 6 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! [2022-12-12 15:02:01,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...