/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 19:15:10,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 19:15:10,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 19:15:10,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 19:15:10,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 19:15:10,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 19:15:10,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 19:15:10,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 19:15:10,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 19:15:10,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 19:15:10,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 19:15:10,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 19:15:10,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 19:15:10,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 19:15:10,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 19:15:10,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 19:15:10,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 19:15:10,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 19:15:10,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 19:15:10,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 19:15:10,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 19:15:10,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 19:15:10,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 19:15:10,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 19:15:10,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 19:15:10,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 19:15:10,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 19:15:10,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 19:15:10,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 19:15:10,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 19:15:10,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 19:15:10,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 19:15:10,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 19:15:10,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 19:15:10,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 19:15:10,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 19:15:10,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 19:15:10,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 19:15:10,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 19:15:10,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 19:15:10,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 19:15:10,457 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-NoLbe.epf [2022-12-11 19:15:10,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 19:15:10,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 19:15:10,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 19:15:10,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 19:15:10,479 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 19:15:10,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 19:15:10,480 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 19:15:10,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 19:15:10,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 19:15:10,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 19:15:10,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 19:15:10,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 19:15:10,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 19:15:10,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 19:15:10,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 19:15:10,482 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 19:15:10,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 19:15:10,482 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 19:15:10,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 19:15:10,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 19:15:10,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 19:15:10,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 19:15:10,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 19:15:10,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:15:10,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 19:15:10,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 19:15:10,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 19:15:10,483 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 19:15:10,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 19:15:10,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 19:15:10,483 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 19:15:10,483 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-11 19:15:10,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 19:15:10,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 19:15:10,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 19:15:10,752 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 19:15:10,752 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 19:15:10,753 INFO L432 ainManager$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_pos.i [2022-12-11 19:15:11,688 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 19:15:11,933 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 19:15:11,934 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-11 19:15:11,966 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1019426b2/94bf86a9f8ec464c8162952f09622a7d/FLAG5f31f9dc2 [2022-12-11 19:15:11,979 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1019426b2/94bf86a9f8ec464c8162952f09622a7d [2022-12-11 19:15:11,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 19:15:11,982 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 19:15:11,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 19:15:11,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 19:15:11,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 19:15:11,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:15:11" (1/1) ... [2022-12-11 19:15:11,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ed62d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:11, skipping insertion in model container [2022-12-11 19:15:11,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 07:15:11" (1/1) ... [2022-12-11 19:15:11,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 19:15:12,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 19:15:12,171 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_pos.i[1103,1116] [2022-12-11 19:15:12,453 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-11 19:15:12,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:15:12,464 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 19:15:12,472 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_pos.i[1103,1116] [2022-12-11 19:15:12,501 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-11 19:15:12,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 19:15:12,571 INFO L208 MainTranslator]: Completed translation [2022-12-11 19:15:12,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12 WrapperNode [2022-12-11 19:15:12,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 19:15:12,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 19:15:12,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 19:15:12,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 19:15:12,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,629 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-12-11 19:15:12,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 19:15:12,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 19:15:12,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 19:15:12,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 19:15:12,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,662 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 19:15:12,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 19:15:12,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 19:15:12,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 19:15:12,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (1/1) ... [2022-12-11 19:15:12,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 19:15:12,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 19:15:12,700 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) [2022-12-11 19:15:12,713 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 [2022-12-11 19:15:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-11 19:15:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-12-11 19:15:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-12-11 19:15:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-11 19:15:12,740 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-11 19:15:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 19:15:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 19:15:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 19:15:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 19:15:12,740 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-11 19:15:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 19:15:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 19:15:12,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 19:15:12,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 19:15:12,742 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 19:15:12,929 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 19:15:12,931 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 19:15:13,052 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 19:15:13,056 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 19:15:13,057 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 19:15:13,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:15:13 BoogieIcfgContainer [2022-12-11 19:15:13,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 19:15:13,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 19:15:13,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 19:15:13,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 19:15:13,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 07:15:11" (1/3) ... [2022-12-11 19:15:13,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542b3103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:15:13, skipping insertion in model container [2022-12-11 19:15:13,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 07:15:12" (2/3) ... [2022-12-11 19:15:13,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542b3103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 07:15:13, skipping insertion in model container [2022-12-11 19:15:13,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 07:15:13" (3/3) ... [2022-12-11 19:15:13,064 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-11 19:15:13,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 19:15:13,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 19:15:13,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 19:15:13,111 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-11 19:15:13,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2022-12-11 19:15:13,189 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2022-12-11 19:15:13,190 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 19:15:13,193 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. [2022-12-11 19:15:13,193 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2022-12-11 19:15:13,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 70 transitions, 149 flow [2022-12-11 19:15:13,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 19:15:13,215 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;@17c4e8b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 19:15:13,216 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 19:15:13,237 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2022-12-11 19:15:13,237 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 19:15:13,237 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:15:13,238 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:15:13,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:15:13,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:15:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1286656699, now seen corresponding path program 1 times [2022-12-11 19:15:13,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:15:13,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506936125] [2022-12-11 19:15:13,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:15:13,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:15:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:15:13,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:15:13,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:15:13,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506936125] [2022-12-11 19:15:13,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506936125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:15:13,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:15:13,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-11 19:15:13,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588576770] [2022-12-11 19:15:13,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:15:13,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-11 19:15:13,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:15:13,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-11 19:15:13,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-11 19:15:13,780 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 88 [2022-12-11 19:15:13,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 70 transitions, 149 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:15:13,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:15:13,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 88 [2022-12-11 19:15:13,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:15:13,880 INFO L130 PetriNetUnfolder]: 16/143 cut-off events. [2022-12-11 19:15:13,880 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-12-11 19:15:13,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 143 events. 16/143 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 398 event pairs, 1 based on Foata normal form. 4/147 useless extension candidates. Maximal degree in co-relation 137. Up to 21 conditions per place. [2022-12-11 19:15:13,882 INFO L137 encePairwiseOnDemand]: 82/88 looper letters, 11 selfloop transitions, 3 changer transitions 11/85 dead transitions. [2022-12-11 19:15:13,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 85 transitions, 238 flow [2022-12-11 19:15:13,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-11 19:15:13,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-11 19:15:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 538 transitions. [2022-12-11 19:15:13,898 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.8733766233766234 [2022-12-11 19:15:13,899 INFO L175 Difference]: Start difference. First operand has 77 places, 70 transitions, 149 flow. Second operand 7 states and 538 transitions. [2022-12-11 19:15:13,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 85 transitions, 238 flow [2022-12-11 19:15:13,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 85 transitions, 228 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-11 19:15:13,908 INFO L231 Difference]: Finished difference. Result has 85 places, 70 transitions, 163 flow [2022-12-11 19:15:13,910 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=163, PETRI_PLACES=85, PETRI_TRANSITIONS=70} [2022-12-11 19:15:13,913 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2022-12-11 19:15:13,914 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 70 transitions, 163 flow [2022-12-11 19:15:13,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:15:13,914 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:15:13,914 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:15:13,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 19:15:13,915 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:15:13,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:15:13,916 INFO L85 PathProgramCache]: Analyzing trace with hash 353228857, now seen corresponding path program 1 times [2022-12-11 19:15:13,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:15:13,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711968359] [2022-12-11 19:15:13,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:15:13,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:15:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 19:15:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 19:15:14,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 19:15:14,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711968359] [2022-12-11 19:15:14,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711968359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 19:15:14,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 19:15:14,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 19:15:14,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155529227] [2022-12-11 19:15:14,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 19:15:14,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 19:15:14,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 19:15:14,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 19:15:14,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-11 19:15:14,202 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 88 [2022-12-11 19:15:14,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 70 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:15:14,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 19:15:14,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 88 [2022-12-11 19:15:14,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 19:15:14,263 INFO L130 PetriNetUnfolder]: 7/98 cut-off events. [2022-12-11 19:15:14,263 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-11 19:15:14,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 98 events. 7/98 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 172 event pairs, 1 based on Foata normal form. 10/107 useless extension candidates. Maximal degree in co-relation 157. Up to 13 conditions per place. [2022-12-11 19:15:14,264 INFO L137 encePairwiseOnDemand]: 80/88 looper letters, 15 selfloop transitions, 5 changer transitions 12/75 dead transitions. [2022-12-11 19:15:14,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 75 transitions, 232 flow [2022-12-11 19:15:14,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-11 19:15:14,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-11 19:15:14,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 335 transitions. [2022-12-11 19:15:14,265 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7613636363636364 [2022-12-11 19:15:14,265 INFO L175 Difference]: Start difference. First operand has 85 places, 70 transitions, 163 flow. Second operand 5 states and 335 transitions. [2022-12-11 19:15:14,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 75 transitions, 232 flow [2022-12-11 19:15:14,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 218 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-12-11 19:15:14,268 INFO L231 Difference]: Finished difference. Result has 79 places, 60 transitions, 137 flow [2022-12-11 19:15:14,268 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=137, PETRI_PLACES=79, PETRI_TRANSITIONS=60} [2022-12-11 19:15:14,269 INFO L295 CegarLoopForPetriNet]: 77 programPoint places, 2 predicate places. [2022-12-11 19:15:14,269 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 60 transitions, 137 flow [2022-12-11 19:15:14,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-11 19:15:14,269 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 19:15:14,269 INFO L214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 19:15:14,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 19:15:14,269 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-11 19:15:14,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 19:15:14,270 INFO L85 PathProgramCache]: Analyzing trace with hash 95329438, now seen corresponding path program 1 times [2022-12-11 19:15:14,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 19:15:14,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167054303] [2022-12-11 19:15:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 19:15:14,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 19:15:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 19:15:14,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-11 19:15:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 19:15:14,360 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-11 19:15:14,360 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-11 19:15:14,361 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 19:15:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 19:15:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 19:15:14,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-11 19:15:14,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 19:15:14,365 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-11 19:15:14,369 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 19:15:14,369 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 19:15:14,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 07:15:14 BasicIcfg [2022-12-11 19:15:14,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 19:15:14,420 INFO L158 Benchmark]: Toolchain (without parser) took 2438.07ms. Allocated memory was 222.3MB in the beginning and 300.9MB in the end (delta: 78.6MB). Free memory was 194.7MB in the beginning and 121.8MB in the end (delta: 72.9MB). Peak memory consumption was 152.1MB. Max. memory is 8.0GB. [2022-12-11 19:15:14,420 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 222.3MB. Free memory is still 199.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 19:15:14,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.23ms. Allocated memory is still 222.3MB. Free memory was 194.7MB in the beginning and 156.9MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. [2022-12-11 19:15:14,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.72ms. Allocated memory is still 222.3MB. Free memory was 156.9MB in the beginning and 153.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 19:15:14,422 INFO L158 Benchmark]: Boogie Preprocessor took 36.79ms. Allocated memory is still 222.3MB. Free memory was 153.8MB in the beginning and 151.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 19:15:14,423 INFO L158 Benchmark]: RCFGBuilder took 390.81ms. Allocated memory is still 222.3MB. Free memory was 151.7MB in the beginning and 131.3MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-11 19:15:14,424 INFO L158 Benchmark]: TraceAbstraction took 1359.42ms. Allocated memory was 222.3MB in the beginning and 300.9MB in the end (delta: 78.6MB). Free memory was 130.3MB in the beginning and 121.8MB in the end (delta: 8.5MB). Peak memory consumption was 88.2MB. Max. memory is 8.0GB. [2022-12-11 19:15:14,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 222.3MB. Free memory is still 199.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 587.23ms. Allocated memory is still 222.3MB. Free memory was 194.7MB in the beginning and 156.9MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.72ms. Allocated memory is still 222.3MB. Free memory was 156.9MB in the beginning and 153.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.79ms. Allocated memory is still 222.3MB. Free memory was 153.8MB in the beginning and 151.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 390.81ms. Allocated memory is still 222.3MB. Free memory was 151.7MB in the beginning and 131.3MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 1359.42ms. Allocated memory was 222.3MB in the beginning and 300.9MB in the end (delta: 78.6MB). Free memory was 130.3MB in the beginning and 121.8MB in the end (delta: 8.5MB). Peak memory consumption was 88.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; VAL [g=0] [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [g=0, mut={3:0}] [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; VAL [cond={4:0}, g=0, mut={3:0}] [L1373] 0 pthread_t t1; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, t1={6:0}] [L1374] 0 pthread_t t2; VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, t1={6:0}, t2={5:0}] [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))=-1, 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))=0, ptr={0:0}, ptr={0:0}, t1={6:0}, t2={5:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) VAL [\old(cond)=0, cond=0, cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=1, mut={3:0}, ptr={0:0}, 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: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 26 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=1, InterpolantAutomatonStates: 12, 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-12-11 19:15:14,445 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...