/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-POR-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 23:35:55,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 23:35:55,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 23:35:55,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-16 23:35:55,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-16 23:35:55,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-16 23:35:55,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-16 23:35:55,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-16 23:35:55,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-16 23:35:55,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-16 23:35:55,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-16 23:35:55,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-16 23:35:55,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-16 23:35:55,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-16 23:35:55,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-16 23:35:55,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-16 23:35:55,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-16 23:35:55,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-16 23:35:55,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-16 23:35:55,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-16 23:35:55,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-16 23:35:55,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-16 23:35:55,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-16 23:35:55,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-16 23:35:55,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-16 23:35:55,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-16 23:35:55,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-16 23:35:55,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-16 23:35:55,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-16 23:35:55,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-16 23:35:55,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-16 23:35:55,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-16 23:35:55,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-16 23:35:55,414 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-POR-NewStatesSleep-NoLbe-Random42.epf [2021-06-16 23:35:55,435 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 23:35:55,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 23:35:55,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 23:35:55,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 23:35:55,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 23:35:55,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 23:35:55,437 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 23:35:55,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 23:35:55,437 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 23:35:55,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 23:35:55,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 23:35:55,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 23:35:55,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 23:35:55,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 23:35:55,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 23:35:55,438 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 23:35:55,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 23:35:55,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 23:35:55,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 23:35:55,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 23:35:55,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 23:35:55,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 23:35:55,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 23:35:55,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 23:35:55,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 23:35:55,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 23:35:55,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 23:35:55,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 23:35:55,440 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-16 23:35:55,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 23:35:55,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 23:35:55,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 23:35:55,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 23:35:55,441 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 23:35:55,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-16 23:35:55,441 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 23:35:55,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 23:35:55,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 23:35:55,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 23:35:55,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-16 23:35:55,789 INFO L275 PluginConnector]: CDTParser initialized [2021-06-16 23:35:55,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c [2021-06-16 23:35:55,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d189707/df37eb6a274b4a98ad42ea069c56519c/FLAGea0ad715f [2021-06-16 23:35:56,303 INFO L306 CDTParser]: Found 1 translation units. [2021-06-16 23:35:56,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c [2021-06-16 23:35:56,305 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-16 23:35:56,305 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-16 23:35:56,306 WARN L117 ultiparseSymbolTable]: System include stdbool.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-16 23:35:56,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d189707/df37eb6a274b4a98ad42ea069c56519c/FLAGea0ad715f [2021-06-16 23:35:56,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d189707/df37eb6a274b4a98ad42ea069c56519c [2021-06-16 23:35:56,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 23:35:56,712 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-16 23:35:56,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-16 23:35:56,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-16 23:35:56,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-16 23:35:56,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f0e7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56, skipping insertion in model container [2021-06-16 23:35:56,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-16 23:35:56,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-16 23:35:56,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 23:35:56,899 INFO L203 MainTranslator]: Completed pre-run [2021-06-16 23:35:56,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-16 23:35:56,920 INFO L208 MainTranslator]: Completed translation [2021-06-16 23:35:56,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56 WrapperNode [2021-06-16 23:35:56,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-16 23:35:56,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 23:35:56,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 23:35:56,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 23:35:56,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 23:35:56,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 23:35:56,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 23:35:56,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 23:35:56,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (1/1) ... [2021-06-16 23:35:56,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 23:35:56,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 23:35:56,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 23:35:57,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 23:35:57,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (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 [2021-06-16 23:35:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-16 23:35:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-16 23:35:57,065 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-16 23:35:57,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 23:35:57,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 23:35:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-16 23:35:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-16 23:35:57,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-16 23:35:57,067 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 23:35:57,262 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 23:35:57,262 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-06-16 23:35:57,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 11:35:57 BoogieIcfgContainer [2021-06-16 23:35:57,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 23:35:57,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 23:35:57,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 23:35:57,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 23:35:57,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.06 11:35:56" (1/3) ... [2021-06-16 23:35:57,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b927e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 11:35:57, skipping insertion in model container [2021-06-16 23:35:57,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.06 11:35:56" (2/3) ... [2021-06-16 23:35:57,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b927e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 11:35:57, skipping insertion in model container [2021-06-16 23:35:57,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 11:35:57" (3/3) ... [2021-06-16 23:35:57,270 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadExitUnsafe.c [2021-06-16 23:35:57,275 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 23:35:57,275 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 23:35:57,275 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 23:35:57,276 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 23:35:57,293 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,293 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,293 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,294 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,294 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,294 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,294 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,294 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,295 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,295 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,295 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,295 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,297 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,297 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,297 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,297 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-16 23:35:57,304 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-16 23:35:57,323 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-16 23:35:57,362 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 23:35:57,362 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 23:35:57,362 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 23:35:57,362 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 23:35:57,362 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 23:35:57,362 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 23:35:57,362 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 23:35:57,362 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 23:35:57,388 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 23:35:57,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 23:35:57,393 INFO L82 PathProgramCache]: Analyzing trace with hash -942994193, now seen corresponding path program 1 times [2021-06-16 23:35:57,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 23:35:57,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592687043] [2021-06-16 23:35:57,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 23:35:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-16 23:35:57,511 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-16 23:35:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-16 23:35:57,561 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-16 23:35:57,597 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-16 23:35:57,597 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-16 23:35:57,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 23:35:57,609 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 23:35:57,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 11:35:57 BasicIcfg [2021-06-16 23:35:57,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 23:35:57,652 INFO L168 Benchmark]: Toolchain (without parser) took 938.81 ms. Allocated memory is still 206.6 MB. Free memory was 169.8 MB in the beginning and 155.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2021-06-16 23:35:57,653 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 206.6 MB. Free memory is still 188.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 23:35:57,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.88 ms. Allocated memory is still 206.6 MB. Free memory was 169.4 MB in the beginning and 161.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-06-16 23:35:57,655 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.29 ms. Allocated memory is still 206.6 MB. Free memory was 161.1 MB in the beginning and 189.7 MB in the end (delta: -28.6 MB). Peak memory consumption was 4.4 MB. Max. memory is 8.0 GB. [2021-06-16 23:35:57,655 INFO L168 Benchmark]: Boogie Preprocessor took 16.51 ms. Allocated memory is still 206.6 MB. Free memory was 189.7 MB in the beginning and 188.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 23:35:57,656 INFO L168 Benchmark]: RCFGBuilder took 264.05 ms. Allocated memory is still 206.6 MB. Free memory was 188.7 MB in the beginning and 175.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-16 23:35:57,657 INFO L168 Benchmark]: TraceAbstraction took 385.01 ms. Allocated memory is still 206.6 MB. Free memory was 175.0 MB in the beginning and 155.6 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-06-16 23:35:57,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 206.6 MB. Free memory is still 188.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 204.88 ms. Allocated memory is still 206.6 MB. Free memory was 169.4 MB in the beginning and 161.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 48.29 ms. Allocated memory is still 206.6 MB. Free memory was 161.1 MB in the beginning and 189.7 MB in the end (delta: -28.6 MB). Peak memory consumption was 4.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.51 ms. Allocated memory is still 206.6 MB. Free memory was 189.7 MB in the beginning and 188.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 264.05 ms. Allocated memory is still 206.6 MB. Free memory was 188.7 MB in the beginning and 175.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 385.01 ms. Allocated memory is still 206.6 MB. Free memory was 175.0 MB in the beginning and 155.6 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 ], Maximal queried relation: 0, Independence queries for same thread: 3 - CounterExampleResult [Line: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L24] 0 pthread_t th_id; [L25] FCALL, FORK 0 pthread_create(&th_id, NULL, foo, NULL) VAL [n={0:0}] [L17] COND TRUE 1 1 VAL [n={0:0}, n={0:0}] [L26] 0 \read(th_id) VAL [\result={0:0}, n={0:0}, n={0:0}] [L26] FCALL, JOIN 1 pthread_join(th_id, NULL) VAL [\result={0:0}, n={0:0}, n={0:0}] [L28] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, n={0:0}, n={0:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 36 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 269.8ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.1ms, PartialOrderReductionTime: 16.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.3ms SsaConstructionTime, 52.1ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 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...