/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 --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -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 [2022-12-11 23:56:08,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 23:56:08,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 23:56:08,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 23:56:08,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 23:56:08,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 23:56:08,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 23:56:08,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 23:56:08,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 23:56:08,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 23:56:08,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 23:56:08,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 23:56:08,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 23:56:08,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 23:56:08,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 23:56:08,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 23:56:08,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 23:56:08,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 23:56:08,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 23:56:08,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 23:56:08,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 23:56:08,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 23:56:08,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 23:56:08,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 23:56:08,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 23:56:08,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 23:56:08,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 23:56:08,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 23:56:08,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 23:56:08,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 23:56:08,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 23:56:08,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 23:56:08,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 23:56:08,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 23:56:08,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 23:56:08,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 23:56:08,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 23:56:08,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 23:56:08,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 23:56:08,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 23:56:08,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 23:56:08,357 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 23:56:08,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 23:56:08,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 23:56:08,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 23:56:08,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 23:56:08,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 23:56:08,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 23:56:08,400 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 23:56:08,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 23:56:08,400 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 23:56:08,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 23:56:08,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 23:56:08,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 23:56:08,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 23:56:08,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 23:56:08,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 23:56:08,402 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 23:56:08,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 23:56:08,402 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 23:56:08,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 23:56:08,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 23:56:08,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 23:56:08,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 23:56:08,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 23:56:08,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:56:08,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 23:56:08,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 23:56:08,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 23:56:08,403 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 23:56:08,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 23:56:08,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 23:56:08,404 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 23:56:08,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-11 23:56:08,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 23:56:08,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 23:56:08,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 23:56:08,732 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 23:56:08,732 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 23:56:08,734 INFO L432 ainManager$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 [2022-12-11 23:56:09,933 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 23:56:10,245 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 23:56:10,245 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-11 23:56:10,265 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b908a421/b8ced2f0718e437180c39f853ba1c2e7/FLAG8b0f30716 [2022-12-11 23:56:10,285 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b908a421/b8ced2f0718e437180c39f853ba1c2e7 [2022-12-11 23:56:10,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 23:56:10,288 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 23:56:10,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 23:56:10,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 23:56:10,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 23:56:10,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:10,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34217edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10, skipping insertion in model container [2022-12-11 23:56:10,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:10,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 23:56:10,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 23:56:10,528 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] [2022-12-11 23:56:10,811 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-11 23:56:10,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:56:10,823 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 23:56:10,833 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] [2022-12-11 23:56:10,875 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-11 23:56:10,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 23:56:10,947 INFO L208 MainTranslator]: Completed translation [2022-12-11 23:56:10,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10 WrapperNode [2022-12-11 23:56:10,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 23:56:10,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 23:56:10,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 23:56:10,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 23:56:10,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:10,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:10,997 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-12-11 23:56:10,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 23:56:10,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 23:56:10,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 23:56:10,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 23:56:11,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:11,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:11,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:11,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:11,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:11,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:11,024 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:11,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:11,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 23:56:11,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 23:56:11,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 23:56:11,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 23:56:11,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (1/1) ... [2022-12-11 23:56:11,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 23:56:11,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 23:56:11,070 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 23:56:11,093 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 23:56:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-11 23:56:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-12-11 23:56:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-12-11 23:56:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-11 23:56:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-11 23:56:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 23:56:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 23:56:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 23:56:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 23:56:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-11 23:56:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 23:56:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 23:56:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 23:56:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 23:56:11,113 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 23:56:11,430 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 23:56:11,432 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 23:56:11,597 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 23:56:11,603 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 23:56:11,603 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 23:56:11,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:56:11 BoogieIcfgContainer [2022-12-11 23:56:11,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 23:56:11,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 23:56:11,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 23:56:11,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 23:56:11,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 11:56:10" (1/3) ... [2022-12-11 23:56:11,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff02c25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:56:11, skipping insertion in model container [2022-12-11 23:56:11,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 11:56:10" (2/3) ... [2022-12-11 23:56:11,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff02c25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 11:56:11, skipping insertion in model container [2022-12-11 23:56:11,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 11:56:11" (3/3) ... [2022-12-11 23:56:11,611 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_neg.i [2022-12-11 23:56:11,627 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 23:56:11,627 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 23:56:11,627 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 23:56:11,703 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-11 23:56:11,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2022-12-11 23:56:11,791 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2022-12-11 23:56:11,792 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-11 23:56:11,796 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 23:56:11,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2022-12-11 23:56:11,801 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 70 transitions, 149 flow [2022-12-11 23:56:11,816 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 23:56:11,822 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;@6ac52536, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 23:56:11,822 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-11 23:56:11,848 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2022-12-11 23:56:11,849 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 23:56:11,849 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 23:56:11,850 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 23:56:11,851 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 23:56:11,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 23:56:11,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1286656699, now seen corresponding path program 1 times [2022-12-11 23:56:11,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 23:56:11,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66062418] [2022-12-11 23:56:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 23:56:11,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 23:56:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 23:56:12,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-11 23:56:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 23:56:12,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-11 23:56:12,147 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-11 23:56:12,148 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-11 23:56:12,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-11 23:56:12,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-11 23:56:12,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-11 23:56:12,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 23:56:12,151 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-11 23:56:12,156 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 23:56:12,157 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 23:56:12,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 11:56:12 BasicIcfg [2022-12-11 23:56:12,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 23:56:12,213 INFO L158 Benchmark]: Toolchain (without parser) took 1923.85ms. Allocated memory is still 181.4MB. Free memory was 145.4MB in the beginning and 138.6MB in the end (delta: 6.7MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. [2022-12-11 23:56:12,214 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 181.4MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:56:12,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 657.33ms. Allocated memory is still 181.4MB. Free memory was 145.2MB in the beginning and 106.9MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2022-12-11 23:56:12,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.95ms. Allocated memory is still 181.4MB. Free memory was 106.9MB in the beginning and 104.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 23:56:12,219 INFO L158 Benchmark]: Boogie Preprocessor took 32.49ms. Allocated memory is still 181.4MB. Free memory was 104.3MB in the beginning and 101.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-11 23:56:12,220 INFO L158 Benchmark]: RCFGBuilder took 573.57ms. Allocated memory is still 181.4MB. Free memory was 101.7MB in the beginning and 82.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-11 23:56:12,221 INFO L158 Benchmark]: TraceAbstraction took 604.76ms. Allocated memory is still 181.4MB. Free memory was 81.7MB in the beginning and 138.6MB in the end (delta: -56.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 23:56:12,224 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 181.4MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 657.33ms. Allocated memory is still 181.4MB. Free memory was 145.2MB in the beginning and 106.9MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.95ms. Allocated memory is still 181.4MB. Free memory was 106.9MB in the beginning and 104.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.49ms. Allocated memory is still 181.4MB. Free memory was 104.3MB in the beginning and 101.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 573.57ms. Allocated memory is still 181.4MB. Free memory was 101.7MB in the beginning and 82.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 604.76ms. Allocated memory is still 181.4MB. Free memory was 81.7MB in the beginning and 138.6MB in the end (delta: -56.9MB). There was no memory consumed. 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}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 2 !(cond) VAL [\old(cond)=0, cond=0, cond={4:0}, g=0, mut={3:0}, ptr={0:0}] [L19] 2 reach_error() VAL [\old(cond)=0, cond={4:0}, cond=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: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred 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, 52 NumberOfCodeBlocks, 52 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! [2022-12-11 23:56:12,243 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...