/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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 12:41:58,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 12:41:58,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 12:41:58,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-17 12:41:58,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-17 12:41:58,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-17 12:41:58,947 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-17 12:41:58,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-17 12:41:58,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-17 12:41:58,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-17 12:41:58,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-17 12:41:58,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-17 12:41:58,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 12:41:58,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 12:41:58,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 12:41:58,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 12:41:58,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 12:41:58,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 12:41:58,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 12:41:58,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 12:41:58,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 12:41:58,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 12:41:58,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 12:41:58,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 12:41:58,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-17 12:41:58,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-17 12:41:58,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-17 12:41:58,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-17 12:41:58,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-17 12:41:58,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-17 12:41:58,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-17 12:41:58,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-17 12:41:58,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-17 12:41:58,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 12:41:58,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 12:41:58,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 12:41:58,989 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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-06-17 12:41:59,016 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 12:41:59,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 12:41:59,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 12:41:59,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 12:41:59,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 12:41:59,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 12:41:59,019 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 12:41:59,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 12:41:59,019 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 12:41:59,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 12:41:59,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 12:41:59,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 12:41:59,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 12:41:59,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 12:41:59,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 12:41:59,020 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 12:41:59,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 12:41:59,021 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 12:41:59,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 12:41:59,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 12:41:59,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 12:41:59,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 12:41:59,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 12:41:59,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 12:41:59,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 12:41:59,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 12:41:59,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 12:41:59,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 12:41:59,022 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 12:41:59,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 12:41:59,022 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 12:41:59,022 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 12:41:59,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 12:41:59,023 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 12:41:59,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 12:41:59,023 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 12:41:59,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 12:41:59,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 12:41:59,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 12:41:59,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-17 12:41:59,308 INFO L275 PluginConnector]: CDTParser initialized [2021-06-17 12:41:59,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c [2021-06-17 12:41:59,358 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efdefe913/7a2c74bffc65469c9bf67978ace4e5f7/FLAG53914d220 [2021-06-17 12:41:59,811 INFO L306 CDTParser]: Found 1 translation units. [2021-06-17 12:41:59,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/09b-return-after-end.c [2021-06-17 12:41:59,811 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-17 12:41:59,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efdefe913/7a2c74bffc65469c9bf67978ace4e5f7/FLAG53914d220 [2021-06-17 12:41:59,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efdefe913/7a2c74bffc65469c9bf67978ace4e5f7 [2021-06-17 12:41:59,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 12:41:59,856 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-17 12:41:59,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-17 12:41:59,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-17 12:41:59,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-17 12:41:59,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.06 12:41:59" (1/1) ... [2021-06-17 12:41:59,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad44e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:41:59, skipping insertion in model container [2021-06-17 12:41:59,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.06 12:41:59" (1/1) ... [2021-06-17 12:41:59,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-17 12:41:59,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-17 12:41:59,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-17 12:41:59,995 INFO L203 MainTranslator]: Completed pre-run [2021-06-17 12:42:00,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-17 12:42:00,025 INFO L208 MainTranslator]: Completed translation [2021-06-17 12:42:00,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00 WrapperNode [2021-06-17 12:42:00,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-17 12:42:00,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 12:42:00,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 12:42:00,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 12:42:00,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (1/1) ... [2021-06-17 12:42:00,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (1/1) ... [2021-06-17 12:42:00,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 12:42:00,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 12:42:00,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 12:42:00,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 12:42:00,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (1/1) ... [2021-06-17 12:42:00,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (1/1) ... [2021-06-17 12:42:00,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (1/1) ... [2021-06-17 12:42:00,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (1/1) ... [2021-06-17 12:42:00,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (1/1) ... [2021-06-17 12:42:00,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (1/1) ... [2021-06-17 12:42:00,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (1/1) ... [2021-06-17 12:42:00,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 12:42:00,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 12:42:00,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 12:42:00,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 12:42:00,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (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 [2021-06-17 12:42:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-17 12:42:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-17 12:42:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-17 12:42:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-17 12:42:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-17 12:42:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 12:42:00,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 12:42:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-17 12:42:00,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-17 12:42:00,149 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 12:42:00,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 12:42:00,332 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-17 12:42:00,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 12:42:00 BoogieIcfgContainer [2021-06-17 12:42:00,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 12:42:00,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 12:42:00,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 12:42:00,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 12:42:00,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.06 12:41:59" (1/3) ... [2021-06-17 12:42:00,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67901f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 12:42:00, skipping insertion in model container [2021-06-17 12:42:00,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.06 12:42:00" (2/3) ... [2021-06-17 12:42:00,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67901f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 12:42:00, skipping insertion in model container [2021-06-17 12:42:00,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 12:42:00" (3/3) ... [2021-06-17 12:42:00,338 INFO L111 eAbstractionObserver]: Analyzing ICFG 09b-return-after-end.c [2021-06-17 12:42:00,342 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 12:42:00,342 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 12:42:00,342 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 12:42:00,343 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 12:42:00,363 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,363 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,363 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,363 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,364 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,364 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,364 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,364 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,365 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,365 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,365 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,365 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,366 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,367 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,367 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,367 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,369 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,371 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,371 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,371 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-17 12:42:00,377 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-17 12:42:00,392 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 [2021-06-17 12:42:00,437 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 12:42:00,438 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 12:42:00,438 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 12:42:00,438 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 12:42:00,438 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 12:42:00,438 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 12:42:00,438 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 12:42:00,438 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 12:42:00,511 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 12:42:00,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 12:42:00,514 INFO L82 PathProgramCache]: Analyzing trace with hash 287567646, now seen corresponding path program 1 times [2021-06-17 12:42:00,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 12:42:00,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103387325] [2021-06-17 12:42:00,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 12:42:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 12:42:00,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 12:42:00,670 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 12:42:00,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103387325] [2021-06-17 12:42:00,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103387325] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 12:42:00,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 12:42:00,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-17 12:42:00,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873778704] [2021-06-17 12:42:00,676 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-17 12:42:00,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 12:42:00,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-17 12:42:00,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-17 12:42:00,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 12:42:00,689 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 12:42:00,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-06-17 12:42:00,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 12:42:00,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 12:42:00,758 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 12:42:00,758 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 12:42:00,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 12:42:00,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1474617340, now seen corresponding path program 1 times [2021-06-17 12:42:00,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 12:42:00,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894473550] [2021-06-17 12:42:00,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 12:42:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 12:42:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 12:42:00,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 12:42:00,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894473550] [2021-06-17 12:42:00,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894473550] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 12:42:00,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 12:42:00,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-17 12:42:00,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608912502] [2021-06-17 12:42:00,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-17 12:42:00,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 12:42:00,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-17 12:42:00,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-17 12:42:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 12:42:00,807 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 12:42:00,807 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-06-17 12:42:00,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 12:42:00,808 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 12:42:00,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 12:42:00,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 12:42:00,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-17 12:42:00,853 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 12:42:00,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 12:42:00,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1475136280, now seen corresponding path program 2 times [2021-06-17 12:42:00,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 12:42:00,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117183016] [2021-06-17 12:42:00,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 12:42:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-17 12:42:00,868 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-17 12:42:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-17 12:42:00,887 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-17 12:42:00,901 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-17 12:42:00,901 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-17 12:42:00,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-17 12:42:00,914 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-17 12:42:00,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.06 12:42:00 BasicIcfg [2021-06-17 12:42:00,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-17 12:42:00,938 INFO L168 Benchmark]: Toolchain (without parser) took 1081.58 ms. Allocated memory is still 185.6 MB. Free memory was 148.5 MB in the beginning and 117.9 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.7 MB. Max. memory is 8.0 GB. [2021-06-17 12:42:00,938 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 185.6 MB. Free memory is still 167.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 12:42:00,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.79 ms. Allocated memory is still 185.6 MB. Free memory was 148.3 MB in the beginning and 168.2 MB in the end (delta: -19.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2021-06-17 12:42:00,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.11 ms. Allocated memory is still 185.6 MB. Free memory was 168.2 MB in the beginning and 167.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 12:42:00,942 INFO L168 Benchmark]: Boogie Preprocessor took 16.43 ms. Allocated memory is still 185.6 MB. Free memory was 167.2 MB in the beginning and 166.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-17 12:42:00,943 INFO L168 Benchmark]: RCFGBuilder took 248.85 ms. Allocated memory is still 185.6 MB. Free memory was 166.0 MB in the beginning and 153.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-17 12:42:00,943 INFO L168 Benchmark]: TraceAbstraction took 601.70 ms. Allocated memory is still 185.6 MB. Free memory was 152.5 MB in the beginning and 117.9 MB in the end (delta: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 8.0 GB. [2021-06-17 12:42:00,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 185.6 MB. Free memory is still 167.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 168.79 ms. Allocated memory is still 185.6 MB. Free memory was 148.3 MB in the beginning and 168.2 MB in the end (delta: -19.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 40.11 ms. Allocated memory is still 185.6 MB. Free memory was 168.2 MB in the beginning and 167.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.43 ms. Allocated memory is still 185.6 MB. Free memory was 167.2 MB in the beginning and 166.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 248.85 ms. Allocated memory is still 185.6 MB. Free memory was 166.0 MB in the beginning and 153.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 601.70 ms. Allocated memory is still 185.6 MB. Free memory was 152.5 MB in the beginning and 117.9 MB in the end (delta: 34.6 MB). Peak memory consumption was 34.6 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: 145, positive: 117, positive conditional: 56, positive unconditional: 61, negative: 28, negative conditional: 25, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 127, positive: 117, positive conditional: 56, positive unconditional: 61, negative: 10, negative conditional: 7, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 127, positive: 113, positive conditional: 0, positive unconditional: 113, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 67, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 67, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 14, positive conditional: 7, positive unconditional: 8, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 127, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 67, unknown conditional: 0, unknown unconditional: 67] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 64, Positive conditional cache size: 2, Positive unconditional cache size: 62, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 15, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 11, negative conditional: 3, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 11, negative conditional: 3, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 14, positive conditional: 7, positive unconditional: 8, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 9, negative conditional: 1, negative unconditional: 8, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 64, Positive conditional cache size: 2, Positive unconditional cache size: 62, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, Eliminated conditions: 5, SemanticConditionEliminator.Independence Queries: [ total: 15, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 11, negative conditional: 3, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 11, negative conditional: 3, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 14, positive conditional: 7, positive unconditional: 8, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 9, negative conditional: 1, negative unconditional: 8, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 64, Positive conditional cache size: 2, Positive unconditional cache size: 62, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, Eliminated conditions: 5 ], Maximal queried relation: 2, Independence queries for same thread: 18 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 74, Number of persistent set computation: 173, Number of trivial persistent sets: 143, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 145, positive: 117, positive conditional: 56, positive unconditional: 61, negative: 28, negative conditional: 25, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 127, positive: 117, positive conditional: 56, positive unconditional: 61, negative: 10, negative conditional: 7, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 127, positive: 113, positive conditional: 0, positive unconditional: 113, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 67, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 67, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 14, positive conditional: 7, positive unconditional: 8, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 127, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 67, unknown conditional: 0, unknown unconditional: 67] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 64, Positive conditional cache size: 2, Positive unconditional cache size: 62, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 15, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 11, negative conditional: 3, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 11, negative conditional: 3, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 14, positive conditional: 7, positive unconditional: 8, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 9, negative conditional: 1, negative unconditional: 8, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 64, Positive conditional cache size: 2, Positive unconditional cache size: 62, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, Eliminated conditions: 5, SemanticConditionEliminator.Independence Queries: [ total: 15, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 11, negative conditional: 3, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 11, negative conditional: 3, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 7, negative conditional: 2, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53, positive: 14, positive conditional: 7, positive unconditional: 8, negative: 39, negative conditional: 4, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 9, negative conditional: 1, negative unconditional: 8, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 71, Positive cache size: 64, Positive conditional cache size: 2, Positive unconditional cache size: 62, Negative cache size: 7, Negative conditional cache size: 2, Negative unconditional cache size: 5, Eliminated conditions: 5 ], Maximal queried relation: 2, Independence queries for same thread: 18 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = 1; VAL [x=1] [L16] 0 int y = 1; VAL [x=1, y=1] [L31] 0 pthread_t threadId; VAL [x=1, y=1] [L32] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, x=1, y=1] [L20] COND TRUE 1 \read(y) VAL [arg={0:0}, arg={0:0}, x=1, y=1] [L34] 0 y = 0 VAL [arg={0:0}, arg={0:0}, x=1, y=0] [L22] 1 x = y VAL [arg={0:0}, arg={0:0}, x=0, y=0] [L36] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=0, y=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 501.3ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 173.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 6, 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: 8.8ms SsaConstructionTime, 33.0ms SatisfiabilityAnalysisTime, 102.4ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...