/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 14:02:53,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 14:02:53,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 14:02:53,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 14:02:53,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 14:02:53,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 14:02:53,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 14:02:53,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 14:02:53,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 14:02:53,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 14:02:53,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 14:02:53,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 14:02:53,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 14:02:53,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 14:02:53,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 14:02:53,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 14:02:53,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 14:02:53,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 14:02:53,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 14:02:53,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 14:02:53,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 14:02:53,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 14:02:53,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 14:02:53,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 14:02:53,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 14:02:53,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 14:02:53,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 14:02:53,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 14:02:53,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 14:02:53,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 14:02:53,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 14:02:53,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 14:02:53,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 14:02:53,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 14:02:53,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 14:02:53,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 14:02:53,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 14:02:53,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 14:02:53,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 14:02:53,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 14:02:53,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 14:02:53,772 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-SemanticLbe.epf [2021-03-11 14:02:53,796 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 14:02:53,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 14:02:53,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 14:02:53,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 14:02:53,799 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 14:02:53,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 14:02:53,799 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 14:02:53,799 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 14:02:53,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 14:02:53,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 14:02:53,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 14:02:53,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 14:02:53,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 14:02:53,800 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 14:02:53,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 14:02:53,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 14:02:53,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 14:02:53,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 14:02:53,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 14:02:53,801 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 14:02:53,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 14:02:53,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:02:53,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 14:02:53,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 14:02:53,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 14:02:53,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 14:02:53,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 14:02:53,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 14:02:53,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 14:02:54,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 14:02:54,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 14:02:54,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 14:02:54,074 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 14:02:54,075 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 14:02:54,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c [2021-03-11 14:02:54,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5cca384/9e4a2739ed5a48aba7b92a88cb839220/FLAGf0afe5e6d [2021-03-11 14:02:54,458 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 14:02:54,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c [2021-03-11 14:02:54,460 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 14:02:54,460 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 14:02:54,460 WARN L117 ultiparseSymbolTable]: System include stdbool.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 14:02:54,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5cca384/9e4a2739ed5a48aba7b92a88cb839220/FLAGf0afe5e6d [2021-03-11 14:02:54,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5cca384/9e4a2739ed5a48aba7b92a88cb839220 [2021-03-11 14:02:54,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 14:02:54,901 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 14:02:54,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 14:02:54,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 14:02:54,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 14:02:54,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:02:54" (1/1) ... [2021-03-11 14:02:54,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352e12ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:54, skipping insertion in model container [2021-03-11 14:02:54,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 02:02:54" (1/1) ... [2021-03-11 14:02:54,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 14:02:54,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 14:02:54,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 14:02:54,997 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 14:02:55,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 14:02:55,036 INFO L208 MainTranslator]: Completed translation [2021-03-11 14:02:55,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55 WrapperNode [2021-03-11 14:02:55,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 14:02:55,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 14:02:55,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 14:02:55,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 14:02:55,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (1/1) ... [2021-03-11 14:02:55,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (1/1) ... [2021-03-11 14:02:55,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 14:02:55,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 14:02:55,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 14:02:55,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 14:02:55,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (1/1) ... [2021-03-11 14:02:55,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (1/1) ... [2021-03-11 14:02:55,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (1/1) ... [2021-03-11 14:02:55,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (1/1) ... [2021-03-11 14:02:55,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (1/1) ... [2021-03-11 14:02:55,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (1/1) ... [2021-03-11 14:02:55,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (1/1) ... [2021-03-11 14:02:55,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 14:02:55,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 14:02:55,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 14:02:55,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 14:02:55,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (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 [2021-03-11 14:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 14:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-11 14:02:55,130 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-11 14:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 14:02:55,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 14:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 14:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 14:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 14:02:55,132 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 14:02:55,321 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 14:02:55,321 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-03-11 14:02:55,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:02:55 BoogieIcfgContainer [2021-03-11 14:02:55,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 14:02:55,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 14:02:55,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 14:02:55,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 14:02:55,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 02:02:54" (1/3) ... [2021-03-11 14:02:55,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd5b6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:02:55, skipping insertion in model container [2021-03-11 14:02:55,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 02:02:55" (2/3) ... [2021-03-11 14:02:55,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd5b6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:02:55, skipping insertion in model container [2021-03-11 14:02:55,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:02:55" (3/3) ... [2021-03-11 14:02:55,328 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadExitUnsafe.c [2021-03-11 14:02:55,331 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 14:02:55,332 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 14:02:55,334 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 14:02:55,334 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 14:02:55,357 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,358 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,358 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,358 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,358 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,358 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,359 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,359 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,360 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,360 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,361 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,361 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,364 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,364 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,364 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,364 WARN L313 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:02:55,370 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-11 14:02:55,381 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-11 14:02:55,401 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:02:55,401 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:02:55,401 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:02:55,401 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:02:55,401 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:02:55,401 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:02:55,401 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:02:55,402 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:02:55,411 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:02:55,423 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 28 transitions, 64 flow [2021-03-11 14:02:55,425 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 28 transitions, 64 flow [2021-03-11 14:02:55,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions, 64 flow [2021-03-11 14:02:55,452 INFO L129 PetriNetUnfolder]: 2/27 cut-off events. [2021-03-11 14:02:55,452 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-11 14:02:55,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 27 events. 2/27 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 8. Up to 3 conditions per place. [2021-03-11 14:02:55,454 INFO L116 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-11 14:02:56,117 INFO L131 LiptonReduction]: Checked pairs total: 26 [2021-03-11 14:02:56,117 INFO L133 LiptonReduction]: Total number of compositions: 25 [2021-03-11 14:02:56,123 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 8 transitions, 24 flow [2021-03-11 14:02:56,127 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-03-11 14:02:56,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-03-11 14:02:56,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-03-11 14:02:56,132 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:02:56,132 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-11 14:02:56,132 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:02:56,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:02:56,135 INFO L82 PathProgramCache]: Analyzing trace with hash -562361211, now seen corresponding path program 1 times [2021-03-11 14:02:56,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:02:56,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741302521] [2021-03-11 14:02:56,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:02:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:02:56,198 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:02:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 14:02:56,208 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 14:02:56,220 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 14:02:56,221 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 14:02:56,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 14:02:56,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:02:56 BasicIcfg [2021-03-11 14:02:56,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 14:02:56,234 INFO L168 Benchmark]: Toolchain (without parser) took 1336.77 ms. Allocated memory is still 354.4 MB. Free memory was 317.1 MB in the beginning and 198.3 MB in the end (delta: 118.7 MB). Peak memory consumption was 120.2 MB. Max. memory is 16.0 GB. [2021-03-11 14:02:56,235 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 354.4 MB. Free memory was 336.0 MB in the beginning and 335.9 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:02:56,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.12 ms. Allocated memory is still 354.4 MB. Free memory was 316.4 MB in the beginning and 338.9 MB in the end (delta: -22.4 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-03-11 14:02:56,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.45 ms. Allocated memory is still 354.4 MB. Free memory was 338.9 MB in the beginning and 336.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:02:56,236 INFO L168 Benchmark]: Boogie Preprocessor took 16.42 ms. Allocated memory is still 354.4 MB. Free memory was 336.8 MB in the beginning and 335.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:02:56,236 INFO L168 Benchmark]: RCFGBuilder took 247.24 ms. Allocated memory is still 354.4 MB. Free memory was 335.7 MB in the beginning and 321.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-11 14:02:56,237 INFO L168 Benchmark]: TraceAbstraction took 909.00 ms. Allocated memory is still 354.4 MB. Free memory was 321.0 MB in the beginning and 198.3 MB in the end (delta: 122.7 MB). Peak memory consumption was 123.7 MB. Max. memory is 16.0 GB. [2021-03-11 14:02:56,239 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 354.4 MB. Free memory was 336.0 MB in the beginning and 335.9 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 134.12 ms. Allocated memory is still 354.4 MB. Free memory was 316.4 MB in the beginning and 338.9 MB in the end (delta: -22.4 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.45 ms. Allocated memory is still 354.4 MB. Free memory was 338.9 MB in the beginning and 336.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.42 ms. Allocated memory is still 354.4 MB. Free memory was 336.8 MB in the beginning and 335.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 247.24 ms. Allocated memory is still 354.4 MB. Free memory was 335.7 MB in the beginning and 321.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 909.00 ms. Allocated memory is still 354.4 MB. Free memory was 321.0 MB in the beginning and 198.3 MB in the end (delta: 122.7 MB). Peak memory consumption was 123.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 691.6ms, 30 PlacesBefore, 12 PlacesAfterwards, 28 TransitionsBefore, 8 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 4 FixpointIterations, 16 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 25 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 26, positive: 26, positive conditional: 0, positive unconditional: 26, 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: 20, positive: 20, positive conditional: 0, positive unconditional: 20, 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: 20, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 26, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 20, unknown conditional: 0, unknown unconditional: 20] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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}] [L26] 0 \read(th_id) VAL [n={0:0}] [L17] COND TRUE 1 1 [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 CFG has 2 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 822.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 3.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 725.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: 2.9ms SsaConstructionTime, 13.2ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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...