/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 18:18:15,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 18:18:15,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 18:18:15,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 18:18:15,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 18:18:15,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 18:18:15,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 18:18:15,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 18:18:15,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 18:18:15,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 18:18:15,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 18:18:15,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 18:18:15,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 18:18:15,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 18:18:15,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 18:18:15,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 18:18:15,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 18:18:15,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 18:18:15,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 18:18:15,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 18:18:15,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 18:18:15,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 18:18:15,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 18:18:15,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 18:18:15,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 18:18:15,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 18:18:15,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 18:18:15,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 18:18:15,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 18:18:15,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 18:18:15,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 18:18:15,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 18:18:15,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 18:18:15,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 18:18:15,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 18:18:15,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 18:18:15,256 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-FA-NoLbe.epf [2021-01-26 18:18:15,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 18:18:15,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 18:18:15,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 18:18:15,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 18:18:15,340 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 18:18:15,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 18:18:15,340 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 18:18:15,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 18:18:15,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 18:18:15,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 18:18:15,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 18:18:15,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 18:18:15,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 18:18:15,343 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 18:18:15,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 18:18:15,344 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 18:18:15,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 18:18:15,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 18:18:15,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 18:18:15,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 18:18:15,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 18:18:15,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 18:18:15,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 18:18:15,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 18:18:15,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 18:18:15,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 18:18:15,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 18:18:15,347 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 18:18:15,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 18:18:15,348 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 18:18:15,348 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 18:18:15,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 18:18:15,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 18:18:15,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 18:18:15,944 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 18:18:15,945 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 18:18:15,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-01-26 18:18:16,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8efd339f4/ee2263b0b5c741ac8e50785540997e31/FLAG6fff31a32 [2021-01-26 18:18:17,034 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 18:18:17,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2021-01-26 18:18:17,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8efd339f4/ee2263b0b5c741ac8e50785540997e31/FLAG6fff31a32 [2021-01-26 18:18:17,284 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8efd339f4/ee2263b0b5c741ac8e50785540997e31 [2021-01-26 18:18:17,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 18:18:17,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 18:18:17,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 18:18:17,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 18:18:17,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 18:18:17,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 06:18:17" (1/1) ... [2021-01-26 18:18:17,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245b24e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:17, skipping insertion in model container [2021-01-26 18:18:17,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 06:18:17" (1/1) ... [2021-01-26 18:18:17,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 18:18:17,378 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 18:18:17,564 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-26 18:18:18,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 18:18:18,043 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 18:18:18,077 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-26 18:18:18,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 18:18:18,437 INFO L208 MainTranslator]: Completed translation [2021-01-26 18:18:18,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18 WrapperNode [2021-01-26 18:18:18,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 18:18:18,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 18:18:18,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 18:18:18,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 18:18:18,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (1/1) ... [2021-01-26 18:18:18,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (1/1) ... [2021-01-26 18:18:18,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 18:18:18,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 18:18:18,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 18:18:18,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 18:18:18,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (1/1) ... [2021-01-26 18:18:18,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (1/1) ... [2021-01-26 18:18:18,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (1/1) ... [2021-01-26 18:18:18,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (1/1) ... [2021-01-26 18:18:18,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (1/1) ... [2021-01-26 18:18:18,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (1/1) ... [2021-01-26 18:18:18,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (1/1) ... [2021-01-26 18:18:18,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 18:18:18,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 18:18:18,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 18:18:18,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 18:18:18,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 18:18:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-26 18:18:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 18:18:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-01-26 18:18:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 18:18:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 18:18:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 18:18:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-01-26 18:18:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-01-26 18:18:18,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 18:18:18,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 18:18:18,721 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 18:18:19,374 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 18:18:19,374 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2021-01-26 18:18:19,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 06:18:19 BoogieIcfgContainer [2021-01-26 18:18:19,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 18:18:19,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 18:18:19,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 18:18:19,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 18:18:19,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 06:18:17" (1/3) ... [2021-01-26 18:18:19,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f08467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 06:18:19, skipping insertion in model container [2021-01-26 18:18:19,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 06:18:18" (2/3) ... [2021-01-26 18:18:19,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f08467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 06:18:19, skipping insertion in model container [2021-01-26 18:18:19,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 06:18:19" (3/3) ... [2021-01-26 18:18:19,390 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2021-01-26 18:18:19,418 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 18:18:19,419 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 18:18:19,425 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 18:18:19,427 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 18:18:19,470 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,471 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,471 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,472 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,472 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,472 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,472 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,473 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,473 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,474 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,474 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,475 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,476 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,477 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,478 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,479 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,480 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,483 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,484 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,484 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,485 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,485 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,485 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,486 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,486 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 18:18:19,501 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-01-26 18:18:19,518 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-26 18:18:19,557 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 18:18:19,557 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 18:18:19,557 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 18:18:19,558 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 18:18:19,558 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 18:18:19,558 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 18:18:19,558 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 18:18:19,559 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 18:18:19,574 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 69 transitions, 146 flow [2021-01-26 18:18:19,603 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 185 states, 183 states have (on average 1.9344262295081966) internal successors, (354), 184 states have internal predecessors, (354), 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) [2021-01-26 18:18:19,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 183 states have (on average 1.9344262295081966) internal successors, (354), 184 states have internal predecessors, (354), 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) [2021-01-26 18:18:19,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-26 18:18:19,624 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 18:18:19,625 INFO L504 BasicCegarLoop]: 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] [2021-01-26 18:18:19,625 INFO L429 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 18:18:19,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 18:18:19,638 INFO L82 PathProgramCache]: Analyzing trace with hash 515054767, now seen corresponding path program 1 times [2021-01-26 18:18:19,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 18:18:19,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930368620] [2021-01-26 18:18:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 18:18:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-26 18:18:19,887 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-26 18:18:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-26 18:18:20,002 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-26 18:18:20,080 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-26 18:18:20,082 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-01-26 18:18:20,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 18:18:20,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 06:18:20 BasicIcfg [2021-01-26 18:18:20,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 18:18:20,145 INFO L168 Benchmark]: Toolchain (without parser) took 2851.91 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 226.3 MB in the end (delta: 49.9 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.0 GB. [2021-01-26 18:18:20,146 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.8 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 18:18:20,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1139.54 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 276.6 MB in the end (delta: -1.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. [2021-01-26 18:18:20,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.00 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 274.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 18:18:20,150 INFO L168 Benchmark]: Boogie Preprocessor took 43.11 ms. Allocated memory is still 302.0 MB. Free memory was 274.5 MB in the beginning and 273.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 18:18:20,151 INFO L168 Benchmark]: RCFGBuilder took 775.32 ms. Allocated memory is still 302.0 MB. Free memory was 273.5 MB in the beginning and 250.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-26 18:18:20,152 INFO L168 Benchmark]: TraceAbstraction took 762.23 ms. Allocated memory is still 302.0 MB. Free memory was 249.3 MB in the beginning and 226.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-26 18:18:20,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.8 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1139.54 ms. Allocated memory is still 302.0 MB. Free memory was 275.2 MB in the beginning and 276.6 MB in the end (delta: -1.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 111.00 ms. Allocated memory is still 302.0 MB. Free memory was 276.6 MB in the beginning and 274.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 43.11 ms. Allocated memory is still 302.0 MB. Free memory was 274.5 MB in the beginning and 273.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 775.32 ms. Allocated memory is still 302.0 MB. Free memory was 273.5 MB in the beginning and 250.4 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 762.23 ms. Allocated memory is still 302.0 MB. Free memory was 249.3 MB in the beginning and 226.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 696]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={11:0}] [L698] 0 pthread_cond_t cond; VAL [cond={13:0}, lock={11:0}] [L699] 0 int x; VAL [cond={13:0}, lock={11:0}, x=0] [L709] 0 pthread_t t; VAL [cond={13:0}, lock={11:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [cond={13:0}, lock={11:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [cond={13:0}, lock={11:0}, x=0] [L696] COND FALSE 1 !(0) VAL [cond={13:0}, lock={11:0}, x=0] [L696] 1 __assert_fail ("0", "svc.h", 6, __extension__ __PRETTY_FUNCTION__) VAL [cond={13:0}, lock={11:0}, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=185occurred in iteration=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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 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! Received shutdown request...