/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-varabs.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-11 11:27:25,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-11 11:27:25,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-11 11:27:25,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-11 11:27:25,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-11 11:27:25,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-11 11:27:25,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-11 11:27:25,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-11 11:27:25,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-11 11:27:25,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-11 11:27:25,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-11 11:27:25,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-11 11:27:25,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-11 11:27:25,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-11 11:27:25,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-11 11:27:25,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-11 11:27:25,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-11 11:27:25,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-11 11:27:25,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-11 11:27:25,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-11 11:27:25,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-11 11:27:25,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-11 11:27:25,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-11 11:27:25,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-11 11:27:25,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-11 11:27:25,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-11 11:27:25,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-11 11:27:25,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-11 11:27:25,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-11 11:27:25,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-11 11:27:25,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-11 11:27:25,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-11 11:27:25,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-11 11:27:25,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-11 11:27:25,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-11 11:27:25,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-11 11:27:25,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-11 11:27:25,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-11 11:27:25,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-11 11:27:25,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-11 11:27:25,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-11 11:27:25,885 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-varabs.epf [2022-02-11 11:27:25,908 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-11 11:27:25,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-11 11:27:25,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-11 11:27:25,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-11 11:27:25,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-11 11:27:25,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-11 11:27:25,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-11 11:27:25,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-11 11:27:25,911 INFO L138 SettingsManager]: * Use SBE=true [2022-02-11 11:27:25,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-11 11:27:25,911 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-11 11:27:25,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-11 11:27:25,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-11 11:27:25,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-11 11:27:25,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-11 11:27:25,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-11 11:27:25,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-11 11:27:25,912 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-11 11:27:25,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-11 11:27:25,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-11 11:27:25,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-11 11:27:25,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-11 11:27:25,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-11 11:27:25,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-11 11:27:25,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-11 11:27:25,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 11:27:25,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-11 11:27:25,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-11 11:27:25,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-11 11:27:25,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-11 11:27:25,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-11 11:27:25,914 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-11 11:27:25,914 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-02-11 11:27:25,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-11 11:27:25,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-11 11:27:25,915 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-11 11:27:25,915 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-11 11:27:25,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-11 11:27:26,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-11 11:27:26,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-11 11:27:26,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-11 11:27:26,086 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-11 11:27:26,087 INFO L275 PluginConnector]: CDTParser initialized [2022-02-11 11:27:26,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c [2022-02-11 11:27:26,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e581da572/04d3add8eb084854b6265d7a9cbef994/FLAG3f23ec17c [2022-02-11 11:27:26,467 INFO L306 CDTParser]: Found 1 translation units. [2022-02-11 11:27:26,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadExitUnsafe.c [2022-02-11 11:27:26,468 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-11 11:27:26,468 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-11 11:27:26,469 WARN L117 ultiparseSymbolTable]: System include stdbool.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-11 11:27:26,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e581da572/04d3add8eb084854b6265d7a9cbef994/FLAG3f23ec17c [2022-02-11 11:27:26,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e581da572/04d3add8eb084854b6265d7a9cbef994 [2022-02-11 11:27:26,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-11 11:27:26,512 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-11 11:27:26,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-11 11:27:26,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-11 11:27:26,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-11 11:27:26,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e358fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26, skipping insertion in model container [2022-02-11 11:27:26,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-11 11:27:26,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-11 11:27:26,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-11 11:27:26,639 INFO L203 MainTranslator]: Completed pre-run [2022-02-11 11:27:26,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-11 11:27:26,652 INFO L208 MainTranslator]: Completed translation [2022-02-11 11:27:26,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26 WrapperNode [2022-02-11 11:27:26,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-11 11:27:26,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-11 11:27:26,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-11 11:27:26,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-11 11:27:26,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,671 INFO L137 Inliner]: procedures = 9, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-02-11 11:27:26,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-11 11:27:26,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-11 11:27:26,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-11 11:27:26,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-11 11:27:26,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-11 11:27:26,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-11 11:27:26,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-11 11:27:26,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-11 11:27:26,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (1/1) ... [2022-02-11 11:27:26,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 11:27:26,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 11:27:26,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-11 11:27:26,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-11 11:27:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-11 11:27:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-11 11:27:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-11 11:27:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-11 11:27:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-11 11:27:26,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-11 11:27:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-11 11:27:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-11 11:27:26,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-11 11:27:26,727 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-11 11:27:26,778 INFO L234 CfgBuilder]: Building ICFG [2022-02-11 11:27:26,779 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-11 11:27:26,857 INFO L275 CfgBuilder]: Performing block encoding [2022-02-11 11:27:26,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-11 11:27:26,861 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-11 11:27:26,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 11:27:26 BoogieIcfgContainer [2022-02-11 11:27:26,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-11 11:27:26,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-11 11:27:26,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-11 11:27:26,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-11 11:27:26,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.02 11:27:26" (1/3) ... [2022-02-11 11:27:26,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f9fba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 11:27:26, skipping insertion in model container [2022-02-11 11:27:26,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.02 11:27:26" (2/3) ... [2022-02-11 11:27:26,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f9fba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 11:27:26, skipping insertion in model container [2022-02-11 11:27:26,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 11:27:26" (3/3) ... [2022-02-11 11:27:26,882 INFO L112 eAbstractionObserver]: Analyzing ICFG pthreadExitUnsafe.c [2022-02-11 11:27:26,885 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-11 11:27:26,885 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-11 11:27:26,885 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-11 11:27:26,885 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-11 11:27:26,909 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,909 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,909 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,909 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,910 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,910 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,910 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,910 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,911 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,911 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,911 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,911 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,917 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,918 WARN L322 ript$VariableManager]: TermVariable fooThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,918 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,918 WARN L322 ript$VariableManager]: TermVariable |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-11 11:27:26,923 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-11 11:27:26,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 11:27:26,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 11:27:26,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 11:27:26,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-11 11:27:26,994 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 11:27:26,998 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-11 11:27:26,998 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-11 11:27:27,060 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 11:27:27,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 11:27:27,076 INFO L85 PathProgramCache]: Analyzing trace with hash 742844193, now seen corresponding path program 1 times [2022-02-11 11:27:27,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 11:27:27,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270392088] [2022-02-11 11:27:27,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 11:27:27,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 11:27:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 11:27:27,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 11:27:27,222 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 11:27:27,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270392088] [2022-02-11 11:27:27,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270392088] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 11:27:27,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 11:27:27,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-11 11:27:27,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719753102] [2022-02-11 11:27:27,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 11:27:27,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-11 11:27:27,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 11:27:27,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-11 11:27:27,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-11 11:27:27,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 11:27:27,256 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 11:27:27,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2022-02-11 11:27:27,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 11:27:27,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 11:27:27,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: ResultService,SelfDestructingSolverStorable0 [2022-02-11 11:27:27,269 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-11 11:27:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 11:27:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -941166398, now seen corresponding path program 1 times [2022-02-11 11:27:27,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 11:27:27,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727894654] [2022-02-11 11:27:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 11:27:27,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 11:27:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 11:27:27,297 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-11 11:27:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-11 11:27:27,341 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-11 11:27:27,341 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-11 11:27:27,342 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-11 11:27:27,343 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-11 11:27:27,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-11 11:27:27,352 INFO L733 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-11 11:27:27,354 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-11 11:27:27,355 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-11 11:27:27,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.02 11:27:27 BasicIcfg [2022-02-11 11:27:27,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-11 11:27:27,381 INFO L158 Benchmark]: Toolchain (without parser) took 868.72ms. Allocated memory is still 186.6MB. Free memory was 134.0MB in the beginning and 117.5MB in the end (delta: 16.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-02-11 11:27:27,381 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 152.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-11 11:27:27,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 139.52ms. Allocated memory is still 186.6MB. Free memory was 133.7MB in the beginning and 160.0MB in the end (delta: -26.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-11 11:27:27,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.47ms. Allocated memory is still 186.6MB. Free memory was 160.0MB in the beginning and 158.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-11 11:27:27,382 INFO L158 Benchmark]: Boogie Preprocessor took 10.57ms. Allocated memory is still 186.6MB. Free memory was 158.9MB in the beginning and 157.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-11 11:27:27,382 INFO L158 Benchmark]: RCFGBuilder took 179.95ms. Allocated memory is still 186.6MB. Free memory was 157.9MB in the beginning and 147.9MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-11 11:27:27,382 INFO L158 Benchmark]: TraceAbstraction took 517.47ms. Allocated memory is still 186.6MB. Free memory was 147.4MB in the beginning and 117.5MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-02-11 11:27:27,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 152.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 139.52ms. Allocated memory is still 186.6MB. Free memory was 133.7MB in the beginning and 160.0MB in the end (delta: -26.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.47ms. Allocated memory is still 186.6MB. Free memory was 160.0MB in the beginning and 158.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.57ms. Allocated memory is still 186.6MB. Free memory was 158.9MB in the beginning and 157.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 179.95ms. Allocated memory is still 186.6MB. Free memory was 157.9MB in the beginning and 147.9MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 517.47ms. Allocated memory is still 186.6MB. Free memory was 147.4MB in the beginning and 117.5MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 37, positive: 31, positive conditional: 6, positive unconditional: 25, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, positive: 31, positive conditional: 6, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 31, positive: 31, positive conditional: 6, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 31, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 31, positive conditional: 0, positive unconditional: 31, 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: 25, positive: 25, positive conditional: 0, positive unconditional: 25, 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: 25, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 31, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 6 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 25, Number of trivial persistent sets: 25, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 37, positive: 31, positive conditional: 6, positive unconditional: 25, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, positive: 31, positive conditional: 6, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 31, positive: 31, positive conditional: 6, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 31, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 31, positive conditional: 0, positive unconditional: 31, 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: 25, positive: 25, positive conditional: 0, positive unconditional: 25, 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: 25, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 31, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 6 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L24] 0 pthread_t th_id; VAL [th_id={2:0}] [L25] FCALL, FORK 0 pthread_create(&th_id, NULL, foo, NULL) VAL [n={0:0}, pthread_create(&th_id, NULL, foo, NULL)=-1, th_id={2:0}] [L26] 0 \read(th_id) VAL [\read(th_id)=-1, n={0:0}, th_id={2:0}] [L17] COND TRUE 1 1 VAL [n={0:0}, n={0:0}] [L26] FCALL, JOIN 1 pthread_join(th_id, NULL) VAL [\read(th_id)=-1, \result={0:0}, n={0:0}, n={0:0}, th_id={2:0}] [L28] 0 CodeAnnotStmt[Assertion] VAL [\result={0:0}, n={0:0}, n={0:0}, th_id={2:0}] - UnprovableResult [Line: 25]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 40 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-02-11 11:27:27,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-02-11 11:27:27,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...