/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/pthreads/pthreadExitUnsafe.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c1f4b5c [2019-12-17 10:49:58,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-17 10:49:58,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-17 10:49:58,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-17 10:49:58,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-17 10:49:58,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-17 10:49:58,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-17 10:49:58,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-17 10:49:58,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-17 10:49:58,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-17 10:49:58,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-17 10:49:58,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-17 10:49:58,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-17 10:49:58,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-17 10:49:58,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-17 10:49:58,904 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-17 10:49:58,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-17 10:49:58,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-17 10:49:58,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-17 10:49:58,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-17 10:49:58,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-17 10:49:58,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-17 10:49:58,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-17 10:49:58,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-17 10:49:58,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-17 10:49:58,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-17 10:49:58,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-17 10:49:58,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-17 10:49:58,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-17 10:49:58,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-17 10:49:58,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-17 10:49:58,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-17 10:49:58,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-17 10:49:58,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-17 10:49:58,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-17 10:49:58,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-17 10:49:58,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-17 10:49:58,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-17 10:49:58,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-17 10:49:58,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-17 10:49:58,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-17 10:49:58,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-17 10:49:58,948 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-17 10:49:58,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-17 10:49:58,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-17 10:49:58,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-17 10:49:58,950 INFO L138 SettingsManager]: * Use SBE=true [2019-12-17 10:49:58,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-17 10:49:58,951 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-17 10:49:58,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-17 10:49:58,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-17 10:49:58,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-17 10:49:58,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-17 10:49:58,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-17 10:49:58,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-17 10:49:58,952 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-17 10:49:58,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-17 10:49:58,952 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-17 10:49:58,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-17 10:49:58,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-17 10:49:58,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-17 10:49:58,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-17 10:49:58,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-17 10:49:58,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-17 10:49:58,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-17 10:49:58,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-17 10:49:58,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-17 10:49:58,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-17 10:49:58,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-17 10:49:58,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-17 10:49:58,955 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-17 10:49:58,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-17 10:49:59,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-17 10:49:59,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-17 10:49:59,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-17 10:49:59,261 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-17 10:49:59,262 INFO L275 PluginConnector]: CDTParser initialized [2019-12-17 10:49:59,263 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/pthreadExitUnsafe.c [2019-12-17 10:49:59,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73382e58/aaaa9dfb3771459687fee4c99776f5be/FLAG31ed99deb [2019-12-17 10:49:59,791 INFO L306 CDTParser]: Found 1 translation units. [2019-12-17 10:49:59,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/pthreadExitUnsafe.c [2019-12-17 10:49:59,792 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2019-12-17 10:49:59,792 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2019-12-17 10:49:59,792 WARN L117 ultiparseSymbolTable]: System include stdbool.h could not be resolved by CDT -- only built-in system includes are available. [2019-12-17 10:49:59,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73382e58/aaaa9dfb3771459687fee4c99776f5be/FLAG31ed99deb [2019-12-17 10:50:00,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73382e58/aaaa9dfb3771459687fee4c99776f5be [2019-12-17 10:50:00,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-17 10:50:00,156 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-17 10:50:00,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-17 10:50:00,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-17 10:50:00,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-17 10:50:00,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46daaafb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00, skipping insertion in model container [2019-12-17 10:50:00,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-17 10:50:00,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-17 10:50:00,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-17 10:50:00,465 INFO L203 MainTranslator]: Completed pre-run [2019-12-17 10:50:00,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-17 10:50:00,490 INFO L208 MainTranslator]: Completed translation [2019-12-17 10:50:00,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00 WrapperNode [2019-12-17 10:50:00,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-17 10:50:00,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-17 10:50:00,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-17 10:50:00,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-17 10:50:00,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-17 10:50:00,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-17 10:50:00,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-17 10:50:00,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-17 10:50:00,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (1/1) ... [2019-12-17 10:50:00,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-17 10:50:00,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-17 10:50:00,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-17 10:50:00,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-17 10:50:00,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (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 [2019-12-17 10:50:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-17 10:50:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-12-17 10:50:00,598 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-12-17 10:50:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-17 10:50:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-17 10:50:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-17 10:50:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-17 10:50:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-17 10:50:00,602 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-17 10:50:00,786 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-17 10:50:00,786 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-17 10:50:00,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:50:00 BoogieIcfgContainer [2019-12-17 10:50:00,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-17 10:50:00,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-17 10:50:00,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-17 10:50:00,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-17 10:50:00,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:50:00" (1/3) ... [2019-12-17 10:50:00,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659372c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:50:00, skipping insertion in model container [2019-12-17 10:50:00,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:50:00" (2/3) ... [2019-12-17 10:50:00,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659372c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:50:00, skipping insertion in model container [2019-12-17 10:50:00,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:50:00" (3/3) ... [2019-12-17 10:50:00,797 INFO L109 eAbstractionObserver]: Analyzing ICFG pthreadExitUnsafe.c [2019-12-17 10:50:00,808 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-17 10:50:00,808 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-17 10:50:00,816 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-17 10:50:00,819 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-17 10:50:00,881 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:50:00,882 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:50:00,882 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:50:00,882 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:50:00,883 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:50:00,883 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:50:00,891 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:50:00,891 WARN L315 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:50:00,892 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:50:00,892 WARN L315 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:50:00,922 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-17 10:50:00,972 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-17 10:50:00,972 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-17 10:50:00,972 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-17 10:50:00,972 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-17 10:50:00,972 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-17 10:50:00,973 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-17 10:50:00,973 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-17 10:50:00,973 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-17 10:50:00,996 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 28 transitions [2019-12-17 10:50:00,999 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions [2019-12-17 10:50:01,056 INFO L130 PetriNetUnfolder]: 2/27 cut-off events. [2019-12-17 10:50:01,058 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-17 10:50:01,065 INFO L76 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 27 events. 2/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs. 6/30 useless extension candidates. Maximal degree in co-relation 9. Up to 3 conditions per place. [2019-12-17 10:50:01,069 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 30 places, 28 transitions [2019-12-17 10:50:01,093 INFO L130 PetriNetUnfolder]: 2/27 cut-off events. [2019-12-17 10:50:01,093 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-17 10:50:01,097 INFO L76 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 27 events. 2/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs. 6/30 useless extension candidates. Maximal degree in co-relation 9. Up to 3 conditions per place. [2019-12-17 10:50:01,099 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 24 [2019-12-17 10:50:01,100 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-17 10:50:01,740 INFO L206 etLargeBlockEncoding]: Checked pairs total: 16 [2019-12-17 10:50:01,740 INFO L214 etLargeBlockEncoding]: Total number of compositions: 23 [2019-12-17 10:50:01,744 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions [2019-12-17 10:50:01,753 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 9 states. [2019-12-17 10:50:01,755 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-17 10:50:01,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-17 10:50:01,764 INFO L403 BasicCegarLoop]: Found error trace [2019-12-17 10:50:01,765 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-17 10:50:01,765 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-12-17 10:50:01,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-17 10:50:01,772 INFO L82 PathProgramCache]: Analyzing trace with hash -562510164, now seen corresponding path program 1 times [2019-12-17 10:50:01,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-17 10:50:01,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110289909] [2019-12-17 10:50:01,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-17 10:50:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-17 10:50:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-17 10:50:01,930 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-17 10:50:01,931 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-17 10:50:01,936 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [97] [97] ULTIMATE.startENTRY-->L25: Formula: (let ((.cse1 (store |v_#valid_29| 0 0))) (let ((.cse0 (store .cse1 |v_#t~string3.base_4| 1))) (and (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#th_id~0.base_20| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#th_id~0.base_20|) |v_ULTIMATE.start_main_~#th_id~0.offset_17| 0)) |v_#memory_int_11|) (= (store .cse0 |v_ULTIMATE.start_main_~#th_id~0.base_20| 1) |v_#valid_28|) (= (store (store |v_#length_15| |v_#t~string3.base_4| 24) |v_ULTIMATE.start_main_~#th_id~0.base_20| 4) |v_#length_14|) (< 0 |v_#StackHeapBarrier_9|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#th_id~0.base_20|) (= 0 |v_#t~string3.offset_4|) (< |v_#StackHeapBarrier_9| |v_#t~string3.base_4|) (= |v_#NULL.offset_2| 0) (= 0 |v_#NULL.base_2|) (= (select .cse0 |v_ULTIMATE.start_main_~#th_id~0.base_20|) 0) (= |v_ULTIMATE.start_main_~#th_id~0.offset_17| 0) (= (select .cse1 |v_#t~string3.base_4|) 0)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_29|, #memory_int=|v_#memory_int_12|, #length=|v_#length_15|} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_7|, ULTIMATE.start_main_~#th_id~0.base=|v_ULTIMATE.start_main_~#th_id~0.base_20|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_11|, #NULL.offset=|v_#NULL.offset_2|, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_~#th_id~0.offset=|v_ULTIMATE.start_main_~#th_id~0.offset_17|, #t~string3.offset=|v_#t~string3.offset_4|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_13|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_#t~mem1=|v_ULTIMATE.start_main_#t~mem1_12|, #length=|v_#length_14|, #t~string3.base=|v_#t~string3.base_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~#th_id~0.base, ULTIMATE.start_main_#t~nondet2, #NULL.offset, #NULL.base, ULTIMATE.start_main_~#th_id~0.offset, #t~string3.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_#t~mem1, #length, #t~string3.base] because there is no mapped edge [2019-12-17 10:50:01,936 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [76] [76] L25-1-->L26-1: Formula: (= (select (select |v_#memory_int_4| |v_ULTIMATE.start_main_~#th_id~0.base_7|) |v_ULTIMATE.start_main_~#th_id~0.offset_7|) |v_ULTIMATE.start_main_#t~mem1_6|) InVars {ULTIMATE.start_main_~#th_id~0.base=|v_ULTIMATE.start_main_~#th_id~0.base_7|, #memory_int=|v_#memory_int_4|, ULTIMATE.start_main_~#th_id~0.offset=|v_ULTIMATE.start_main_~#th_id~0.offset_7|} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_3|, ULTIMATE.start_main_~#th_id~0.base=|v_ULTIMATE.start_main_~#th_id~0.base_7|, #memory_int=|v_#memory_int_4|, ULTIMATE.start_main_#t~mem1=|v_ULTIMATE.start_main_#t~mem1_6|, ULTIMATE.start_main_~#th_id~0.offset=|v_ULTIMATE.start_main_~#th_id~0.offset_7|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~mem1] because there is no mapped edge [2019-12-17 10:50:01,937 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [93] [93] fooENTRY-->fooEXIT: Formula: (and (= |fooThread1of1ForFork0_#res.base_Out401775578| 0) (= |fooThread1of1ForFork0_#in~n.base_In401775578| fooThread1of1ForFork0_~n.base_Out401775578) (= fooThread1of1ForFork0_~n.offset_Out401775578 |fooThread1of1ForFork0_#in~n.offset_In401775578|) (= |fooThread1of1ForFork0_#res.offset_Out401775578| 0)) InVars {fooThread1of1ForFork0_#in~n.offset=|fooThread1of1ForFork0_#in~n.offset_In401775578|, fooThread1of1ForFork0_#in~n.base=|fooThread1of1ForFork0_#in~n.base_In401775578|} OutVars{fooThread1of1ForFork0_#in~n.offset=|fooThread1of1ForFork0_#in~n.offset_In401775578|, fooThread1of1ForFork0_~n.base=fooThread1of1ForFork0_~n.base_Out401775578, fooThread1of1ForFork0_~n.offset=fooThread1of1ForFork0_~n.offset_Out401775578, fooThread1of1ForFork0_#in~n.base=|fooThread1of1ForFork0_#in~n.base_In401775578|, fooThread1of1ForFork0_#res.offset=|fooThread1of1ForFork0_#res.offset_Out401775578|, fooThread1of1ForFork0_#res.base=|fooThread1of1ForFork0_#res.base_Out401775578|} AuxVars[] AssignedVars[fooThread1of1ForFork0_~n.base, fooThread1of1ForFork0_~n.offset, fooThread1of1ForFork0_#res.offset, fooThread1of1ForFork0_#res.base] because there is no mapped edge [2019-12-17 10:50:01,938 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [92] [92] L26-2-->ULTIMATE.startErr0ASSERT_VIOLATIONASSERT: Formula: true InVars {} OutVars{ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~mem1=|v_ULTIMATE.start_main_#t~mem1_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~mem1] because there is no mapped edge [2019-12-17 10:50:01,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 10:50:01 BasicIcfg [2019-12-17 10:50:01,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-17 10:50:01,966 INFO L168 Benchmark]: Toolchain (without parser) took 1809.65 ms. Allocated memory was 145.2 MB in the beginning and 235.9 MB in the end (delta: 90.7 MB). Free memory was 101.2 MB in the beginning and 207.1 MB in the end (delta: -105.9 MB). Peak memory consumption was 76.2 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:01,967 INFO L168 Benchmark]: CDTParser took 1.48 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-17 10:50:01,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.60 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 180.6 MB in the end (delta: -79.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:01,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.44 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 178.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:01,970 INFO L168 Benchmark]: Boogie Preprocessor took 20.03 ms. Allocated memory is still 202.9 MB. Free memory was 178.9 MB in the beginning and 177.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:01,971 INFO L168 Benchmark]: RCFGBuilder took 242.07 ms. Allocated memory is still 202.9 MB. Free memory was 177.5 MB in the beginning and 164.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:01,972 INFO L168 Benchmark]: TraceAbstraction took 1174.59 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 164.3 MB in the beginning and 207.1 MB in the end (delta: -42.8 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2019-12-17 10:50:01,976 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.48 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 334.60 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.0 MB in the beginning and 180.6 MB in the end (delta: -79.6 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 33.44 ms. Allocated memory is still 202.9 MB. Free memory was 180.6 MB in the beginning and 178.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.03 ms. Allocated memory is still 202.9 MB. Free memory was 178.9 MB in the beginning and 177.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 242.07 ms. Allocated memory is still 202.9 MB. Free memory was 177.5 MB in the beginning and 164.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1174.59 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 164.3 MB in the beginning and 207.1 MB in the end (delta: -42.8 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 30 ProgramPointsBefore, 11 ProgramPointsAfterwards, 28 TransitionsBefore, 8 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 12 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 16 CheckedPairsTotal, 23 TotalNumberOfCompositions - CounterExampleResult [Line: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L25] FCALL, FORK 0 pthread_create(&th_id, NULL, foo, NULL) VAL [n={0:0}] [L26] FCALL, JOIN 1 pthread_join(th_id, NULL) VAL [\result={0:0}, n={0:0}, n={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...