/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadExitSafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 00:35:22,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 00:35:22,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 00:35:22,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 00:35:22,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 00:35:22,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 00:35:22,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 00:35:22,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 00:35:22,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 00:35:22,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 00:35:22,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 00:35:22,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 00:35:22,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 00:35:22,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 00:35:22,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 00:35:22,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 00:35:22,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 00:35:22,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 00:35:22,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 00:35:22,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 00:35:22,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 00:35:22,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 00:35:22,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 00:35:22,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 00:35:22,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-16 00:35:22,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-16 00:35:22,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-16 00:35:22,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-16 00:35:22,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-16 00:35:22,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-16 00:35:22,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-16 00:35:22,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-16 00:35:22,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-16 00:35:22,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-16 00:35:22,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-16 00:35:22,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-16 00:35:22,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-16 00:35:22,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-16 00:35:22,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 00:35:22,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 00:35:22,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 00:35:22,819 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.epf [2022-02-16 00:35:22,843 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 00:35:22,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 00:35:22,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 00:35:22,844 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 00:35:22,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 00:35:22,845 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 00:35:22,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 00:35:22,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 00:35:22,846 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 00:35:22,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 00:35:22,847 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 00:35:22,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 00:35:22,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 00:35:22,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 00:35:22,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 00:35:22,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 00:35:22,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 00:35:22,847 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 00:35:22,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 00:35:22,848 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 00:35:22,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 00:35:22,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 00:35:22,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 00:35:22,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 00:35:22,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 00:35:22,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 00:35:22,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 00:35:22,850 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 00:35:22,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 00:35:22,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 00:35:22,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 00:35:22,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 00:35:22,850 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 00:35:22,850 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 00:35:22,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 00:35:22,851 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-16 00:35:22,851 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-16 00:35:22,851 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 00:35:23,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 00:35:23,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 00:35:23,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 00:35:23,068 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 00:35:23,070 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 00:35:23,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadExitSafe.c [2022-02-16 00:35:23,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b8b5613b/9a78fa1ea9e24f18940645e8f16cb83e/FLAG37571d5a8 [2022-02-16 00:35:23,464 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 00:35:23,465 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadExitSafe.c [2022-02-16 00:35:23,465 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-16 00:35:23,465 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-16 00:35:23,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b8b5613b/9a78fa1ea9e24f18940645e8f16cb83e/FLAG37571d5a8 [2022-02-16 00:35:23,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b8b5613b/9a78fa1ea9e24f18940645e8f16cb83e [2022-02-16 00:35:23,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 00:35:23,506 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 00:35:23,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 00:35:23,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 00:35:23,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 00:35:23,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88da9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23, skipping insertion in model container [2022-02-16 00:35:23,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 00:35:23,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 00:35:23,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 00:35:23,691 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 00:35:23,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 00:35:23,711 INFO L208 MainTranslator]: Completed translation [2022-02-16 00:35:23,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23 WrapperNode [2022-02-16 00:35:23,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 00:35:23,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 00:35:23,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 00:35:23,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 00:35:23,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,735 INFO L137 Inliner]: procedures = 11, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2022-02-16 00:35:23,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 00:35:23,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 00:35:23,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 00:35:23,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 00:35:23,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 00:35:23,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 00:35:23,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 00:35:23,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 00:35:23,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (1/1) ... [2022-02-16 00:35:23,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 00:35:23,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 00:35:23,768 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) [2022-02-16 00:35:23,774 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 [2022-02-16 00:35:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-16 00:35:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 00:35:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2022-02-16 00:35:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2022-02-16 00:35:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 00:35:23,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 00:35:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 00:35:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-16 00:35:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-16 00:35:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 00:35:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 00:35:23,802 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 00:35:23,855 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 00:35:23,856 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 00:35:23,948 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 00:35:23,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 00:35:23,953 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 00:35:23,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:35:23 BoogieIcfgContainer [2022-02-16 00:35:23,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 00:35:23,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 00:35:23,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 00:35:23,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 00:35:23,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 12:35:23" (1/3) ... [2022-02-16 00:35:23,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481dee91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:35:23, skipping insertion in model container [2022-02-16 00:35:23,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:35:23" (2/3) ... [2022-02-16 00:35:23,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481dee91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:35:23, skipping insertion in model container [2022-02-16 00:35:23,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:35:23" (3/3) ... [2022-02-16 00:35:23,960 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadExitSafe.c [2022-02-16 00:35:23,963 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 00:35:23,963 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 00:35:23,963 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 00:35:23,963 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 00:35:23,983 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,983 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,983 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,983 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,983 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,984 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,984 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,984 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,984 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,984 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,984 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,984 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,985 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,985 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,985 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,985 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,985 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,985 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,986 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,986 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,986 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,986 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,986 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,986 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,987 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,987 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,987 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,987 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,987 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,988 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,988 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,988 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,989 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,989 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,989 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,989 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,989 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,989 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,989 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,990 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,990 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,990 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,990 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,990 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,993 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,993 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,993 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,994 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,994 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,994 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,994 WARN L322 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,994 WARN L322 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 00:35:23,998 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-16 00:35:24,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 00:35:24,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 00:35:24,042 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) [2022-02-16 00:35:24,043 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 [2022-02-16 00:35:24,068 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-16 00:35:24,073 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, mLazyFiniteAutomaton=true, 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 [2022-02-16 00:35:24,073 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-16 00:35:24,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-16 00:35:24,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 00:35:24,153 INFO L85 PathProgramCache]: Analyzing trace with hash 541221637, now seen corresponding path program 1 times [2022-02-16 00:35:24,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 00:35:24,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672602137] [2022-02-16 00:35:24,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 00:35:24,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 00:35:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 00:35:24,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 00:35:24,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 00:35:24,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672602137] [2022-02-16 00:35:24,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672602137] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 00:35:24,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 00:35:24,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-16 00:35:24,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686313485] [2022-02-16 00:35:24,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 00:35:24,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-16 00:35:24,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 00:35:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-16 00:35:24,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-02-16 00:35:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 00:35:24,657 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 00:35:24,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.235294117647059) internal successors, (38), 18 states have internal predecessors, (38), 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) [2022-02-16 00:35:24,658 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 00:35:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-16 00:35:25,233 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-16 00:35:25,234 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-16 00:35:25,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 00:35:25,240 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-16 00:35:25,241 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 00:35:25,241 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 00:35:25,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 12:35:25 BasicIcfg [2022-02-16 00:35:25,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 00:35:25,244 INFO L158 Benchmark]: Toolchain (without parser) took 1737.80ms. Allocated memory was 175.1MB in the beginning and 219.2MB in the end (delta: 44.0MB). Free memory was 116.1MB in the beginning and 178.7MB in the end (delta: -62.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 00:35:25,244 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 00:35:25,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.63ms. Allocated memory was 175.1MB in the beginning and 219.2MB in the end (delta: 44.0MB). Free memory was 115.8MB in the beginning and 191.1MB in the end (delta: -75.2MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. [2022-02-16 00:35:25,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.02ms. Allocated memory is still 219.2MB. Free memory was 191.1MB in the beginning and 189.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 00:35:25,245 INFO L158 Benchmark]: Boogie Preprocessor took 11.34ms. Allocated memory is still 219.2MB. Free memory was 189.0MB in the beginning and 187.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 00:35:25,245 INFO L158 Benchmark]: RCFGBuilder took 206.96ms. Allocated memory is still 219.2MB. Free memory was 187.9MB in the beginning and 176.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-16 00:35:25,246 INFO L158 Benchmark]: TraceAbstraction took 1287.99ms. Allocated memory is still 219.2MB. Free memory was 176.4MB in the beginning and 178.7MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 00:35:25,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 197.63ms. Allocated memory was 175.1MB in the beginning and 219.2MB in the end (delta: 44.0MB). Free memory was 115.8MB in the beginning and 191.1MB in the end (delta: -75.2MB). Peak memory consumption was 8.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.02ms. Allocated memory is still 219.2MB. Free memory was 191.1MB in the beginning and 189.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.34ms. Allocated memory is still 219.2MB. Free memory was 189.0MB in the beginning and 187.9MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 206.96ms. Allocated memory is still 219.2MB. Free memory was 187.9MB in the beginning and 176.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1287.99ms. Allocated memory is still 219.2MB. Free memory was 176.4MB in the beginning and 178.7MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 124, positive: 120, positive conditional: 39, positive unconditional: 81, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 124, positive: 120, positive conditional: 39, positive unconditional: 81, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 124, positive: 120, positive conditional: 39, positive unconditional: 81, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125, positive: 120, positive conditional: 35, positive unconditional: 85, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 125, positive: 120, positive conditional: 23, positive unconditional: 97, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 125, positive: 120, positive conditional: 23, positive unconditional: 97, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 85, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 85, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 48, negative conditional: 5, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 125, positive: 39, positive conditional: 23, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 85, unknown conditional: 1, unknown unconditional: 84] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 12, Maximal queried relation: 1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 74, Number of trivial persistent sets: 74, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 84, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 124, positive: 120, positive conditional: 39, positive unconditional: 81, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 124, positive: 120, positive conditional: 39, positive unconditional: 81, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 124, positive: 120, positive conditional: 39, positive unconditional: 81, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125, positive: 120, positive conditional: 35, positive unconditional: 85, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 125, positive: 120, positive conditional: 23, positive unconditional: 97, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 125, positive: 120, positive conditional: 23, positive unconditional: 97, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 85, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 85, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 48, negative conditional: 5, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 125, positive: 39, positive conditional: 23, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 85, unknown conditional: 1, unknown unconditional: 84] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 4, Negative conditional cache size: 1, Negative unconditional cache size: 3, Eliminated conditions: 12, Maximal queried relation: 1, Independence queries for same thread: 0 - 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 - PositiveResult [Line: 29]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 62 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 23, 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, 0.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 331 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-16 00:35:25,280 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 [2022-02-16 00:35:25,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...