/usr/bin/java -Xmx16000000000 -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/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-18 23:14:06,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 23:14:06,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 23:14:06,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 23:14:06,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 23:14:06,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 23:14:06,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 23:14:06,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 23:14:06,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 23:14:06,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 23:14:06,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 23:14:06,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 23:14:06,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 23:14:06,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 23:14:06,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 23:14:06,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 23:14:06,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 23:14:06,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 23:14:06,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 23:14:06,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 23:14:06,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 23:14:06,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 23:14:06,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 23:14:06,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 23:14:06,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 23:14:06,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 23:14:06,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 23:14:06,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 23:14:06,231 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 [2022-01-18 23:14:06,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 23:14:06,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 23:14:06,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 23:14:06,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 23:14:06,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 23:14:06,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 23:14:06,268 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 23:14:06,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 23:14:06,268 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 23:14:06,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 23:14:06,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 23:14:06,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 23:14:06,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 23:14:06,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 23:14:06,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 23:14:06,270 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 23:14:06,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 23:14:06,270 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 23:14:06,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 23:14:06,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 23:14:06,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 23:14:06,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 23:14:06,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 23:14:06,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:14:06,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 23:14:06,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 23:14:06,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 23:14:06,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 23:14:06,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 23:14:06,273 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 23:14:06,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-18 23:14:06,273 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 23:14:06,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 23:14:06,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 23:14:06,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 23:14:06,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 23:14:06,469 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 23:14:06,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-01-18 23:14:06,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ca4356b0/5673de4735c34646b29f5f1fe9f4233b/FLAG0b427e4ec [2022-01-18 23:14:06,964 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 23:14:06,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-01-18 23:14:06,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ca4356b0/5673de4735c34646b29f5f1fe9f4233b/FLAG0b427e4ec [2022-01-18 23:14:07,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ca4356b0/5673de4735c34646b29f5f1fe9f4233b [2022-01-18 23:14:07,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 23:14:07,005 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 23:14:07,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 23:14:07,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 23:14:07,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 23:14:07,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db8c96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07, skipping insertion in model container [2022-01-18 23:14:07,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 23:14:07,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 23:14:07,160 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 23:14:07,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-01-18 23:14:07,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:14:07,356 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 23:14:07,366 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 23:14:07,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-01-18 23:14:07,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 23:14:07,419 INFO L208 MainTranslator]: Completed translation [2022-01-18 23:14:07,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07 WrapperNode [2022-01-18 23:14:07,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 23:14:07,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 23:14:07,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 23:14:07,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 23:14:07,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,463 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-01-18 23:14:07,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 23:14:07,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 23:14:07,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 23:14:07,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 23:14:07,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 23:14:07,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 23:14:07,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 23:14:07,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 23:14:07,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (1/1) ... [2022-01-18 23:14:07,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 23:14:07,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 23:14:07,519 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) [2022-01-18 23:14:07,523 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 [2022-01-18 23:14:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 23:14:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 23:14:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-18 23:14:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 23:14:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 23:14:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 23:14:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 23:14:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-01-18 23:14:07,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-01-18 23:14:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 23:14:07,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 23:14:07,558 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 23:14:07,699 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 23:14:07,701 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 23:14:07,877 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 23:14:07,882 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 23:14:07,883 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-18 23:14:07,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:14:07 BoogieIcfgContainer [2022-01-18 23:14:07,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 23:14:07,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 23:14:07,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 23:14:07,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 23:14:07,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 11:14:07" (1/3) ... [2022-01-18 23:14:07,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebe9637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:14:07, skipping insertion in model container [2022-01-18 23:14:07,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 11:14:07" (2/3) ... [2022-01-18 23:14:07,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebe9637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 11:14:07, skipping insertion in model container [2022-01-18 23:14:07,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 11:14:07" (3/3) ... [2022-01-18 23:14:07,895 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-01-18 23:14:07,899 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 23:14:07,900 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 23:14:07,900 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 23:14:07,946 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,946 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,946 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,946 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,947 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,947 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,947 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,949 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,951 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,951 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,952 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,952 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,952 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,952 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,953 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,958 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,958 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,958 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,959 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,959 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,959 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 23:14:07,965 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-18 23:14:08,016 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 23:14:08,024 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 23:14:08,024 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 23:14:08,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 156 flow [2022-01-18 23:14:08,083 INFO L129 PetriNetUnfolder]: 3/73 cut-off events. [2022-01-18 23:14:08,083 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-18 23:14:08,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 3/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-01-18 23:14:08,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 156 flow [2022-01-18 23:14:08,093 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 66 transitions, 135 flow [2022-01-18 23:14:08,108 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2022-01-18 23:14:08,109 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-18 23:14:08,109 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-18 23:14:08,112 INFO L254 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] [2022-01-18 23:14:08,112 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 23:14:08,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 23:14:08,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1033982442, now seen corresponding path program 1 times [2022-01-18 23:14:08,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 23:14:08,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531876993] [2022-01-18 23:14:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 23:14:08,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 23:14:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:14:08,257 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 23:14:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 23:14:08,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 23:14:08,343 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 23:14:08,344 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 23:14:08,376 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 23:14:08,377 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-18 23:14:08,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 23:14:08,393 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 23:14:08,397 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 23:14:08,397 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 23:14:08,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 11:14:08 BasicIcfg [2022-01-18 23:14:08,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 23:14:08,450 INFO L158 Benchmark]: Toolchain (without parser) took 1445.24ms. Allocated memory is still 350.2MB. Free memory was 296.6MB in the beginning and 320.6MB in the end (delta: -23.9MB). Peak memory consumption was 27.6MB. Max. memory is 16.0GB. [2022-01-18 23:14:08,451 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 350.2MB. Free memory is still 314.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 23:14:08,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.50ms. Allocated memory is still 350.2MB. Free memory was 296.5MB in the beginning and 315.1MB in the end (delta: -18.7MB). Peak memory consumption was 16.4MB. Max. memory is 16.0GB. [2022-01-18 23:14:08,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.25ms. Allocated memory is still 350.2MB. Free memory was 315.1MB in the beginning and 313.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:14:08,456 INFO L158 Benchmark]: Boogie Preprocessor took 19.28ms. Allocated memory is still 350.2MB. Free memory was 313.0MB in the beginning and 311.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 23:14:08,457 INFO L158 Benchmark]: RCFGBuilder took 404.51ms. Allocated memory is still 350.2MB. Free memory was 311.7MB in the beginning and 299.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-18 23:14:08,457 INFO L158 Benchmark]: TraceAbstraction took 559.68ms. Allocated memory is still 350.2MB. Free memory was 299.4MB in the beginning and 320.6MB in the end (delta: -21.1MB). Peak memory consumption was 30.0MB. Max. memory is 16.0GB. [2022-01-18 23:14:08,463 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 350.2MB. Free memory is still 314.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 412.50ms. Allocated memory is still 350.2MB. Free memory was 296.5MB in the beginning and 315.1MB in the end (delta: -18.7MB). Peak memory consumption was 16.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 43.25ms. Allocated memory is still 350.2MB. Free memory was 315.1MB in the beginning and 313.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.28ms. Allocated memory is still 350.2MB. Free memory was 313.0MB in the beginning and 311.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 404.51ms. Allocated memory is still 350.2MB. Free memory was 311.7MB in the beginning and 299.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 559.68ms. Allocated memory is still 350.2MB. Free memory was 299.4MB in the beginning and 320.6MB in the end (delta: -21.1MB). Peak memory consumption was 30.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] - UnprovableResult [Line: 712]: 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 3 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred 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, 50 NumberOfCodeBlocks, 50 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! [2022-01-18 23:14:08,499 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...