/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 13:32:07,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 13:32:07,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 13:32:07,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 13:32:07,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 13:32:07,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 13:32:07,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 13:32:07,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 13:32:07,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 13:32:07,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 13:32:07,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 13:32:07,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 13:32:07,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 13:32:07,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 13:32:07,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 13:32:07,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 13:32:07,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 13:32:07,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 13:32:07,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 13:32:07,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 13:32:07,069 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 13:32:07,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 13:32:07,075 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 13:32:07,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 13:32:07,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 13:32:07,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 13:32:07,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 13:32:07,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 13:32:07,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 13:32:07,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 13:32:07,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 13:32:07,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 13:32:07,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 13:32:07,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 13:32:07,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 13:32:07,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 13:32:07,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 13:32:07,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 13:32:07,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 13:32:07,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 13:32:07,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 13:32:07,085 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-MCRwithoutDepranks-Lazy.epf [2022-02-10 13:32:07,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 13:32:07,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 13:32:07,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 13:32:07,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 13:32:07,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 13:32:07,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 13:32:07,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 13:32:07,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 13:32:07,101 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 13:32:07,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 13:32:07,101 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 13:32:07,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 13:32:07,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 13:32:07,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 13:32:07,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 13:32:07,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 13:32:07,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 13:32:07,102 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 13:32:07,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 13:32:07,102 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 13:32:07,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 13:32:07,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 13:32:07,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 13:32:07,102 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 13:32:07,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 13:32:07,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 13:32:07,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 13:32:07,102 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-10 13:32:07,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 13:32:07,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 13:32:07,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 13:32:07,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 13:32:07,116 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 13:32:07,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-10 13:32:07,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 13:32:07,116 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-10 13:32:07,116 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 13:32:07,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 13:32:07,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 13:32:07,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 13:32:07,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 13:32:07,310 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 13:32:07,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-02-10 13:32:07,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81aaf463/a5766ba6d5164ddb9cdac1802f1a6f40/FLAG37bfae3ac [2022-02-10 13:32:07,787 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 13:32:07,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-02-10 13:32:07,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81aaf463/a5766ba6d5164ddb9cdac1802f1a6f40/FLAG37bfae3ac [2022-02-10 13:32:07,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81aaf463/a5766ba6d5164ddb9cdac1802f1a6f40 [2022-02-10 13:32:07,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 13:32:07,829 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 13:32:07,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 13:32:07,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 13:32:07,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 13:32:07,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 01:32:07" (1/1) ... [2022-02-10 13:32:07,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@535d7e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:07, skipping insertion in model container [2022-02-10 13:32:07,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 01:32:07" (1/1) ... [2022-02-10 13:32:07,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 13:32:07,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 13:32:08,049 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-02-10 13:32:08,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 13:32:08,155 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 13:32:08,165 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-02-10 13:32:08,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 13:32:08,224 INFO L208 MainTranslator]: Completed translation [2022-02-10 13:32:08,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08 WrapperNode [2022-02-10 13:32:08,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 13:32:08,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 13:32:08,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 13:32:08,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 13:32:08,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (1/1) ... [2022-02-10 13:32:08,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (1/1) ... [2022-02-10 13:32:08,252 INFO L137 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-02-10 13:32:08,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 13:32:08,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 13:32:08,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 13:32:08,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 13:32:08,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (1/1) ... [2022-02-10 13:32:08,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (1/1) ... [2022-02-10 13:32:08,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (1/1) ... [2022-02-10 13:32:08,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (1/1) ... [2022-02-10 13:32:08,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (1/1) ... [2022-02-10 13:32:08,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (1/1) ... [2022-02-10 13:32:08,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (1/1) ... [2022-02-10 13:32:08,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 13:32:08,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 13:32:08,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 13:32:08,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 13:32:08,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (1/1) ... [2022-02-10 13:32:08,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 13:32:08,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 13:32:08,289 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) [2022-02-10 13:32:08,299 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 [2022-02-10 13:32:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 13:32:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 13:32:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 13:32:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-10 13:32:08,317 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-10 13:32:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 13:32:08,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 13:32:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 13:32:08,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 13:32:08,322 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 13:32:08,391 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 13:32:08,392 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 13:32:08,462 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 13:32:08,466 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 13:32:08,466 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 13:32:08,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 01:32:08 BoogieIcfgContainer [2022-02-10 13:32:08,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 13:32:08,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 13:32:08,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 13:32:08,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 13:32:08,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 01:32:07" (1/3) ... [2022-02-10 13:32:08,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3eac1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 01:32:08, skipping insertion in model container [2022-02-10 13:32:08,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:32:08" (2/3) ... [2022-02-10 13:32:08,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3eac1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 01:32:08, skipping insertion in model container [2022-02-10 13:32:08,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 01:32:08" (3/3) ... [2022-02-10 13:32:08,472 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-02-10 13:32:08,476 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 13:32:08,476 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 13:32:08,476 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 13:32:08,476 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 13:32:08,498 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,499 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,499 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,499 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,499 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,499 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,499 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,499 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,500 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,500 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,501 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,501 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,515 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,516 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,517 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,518 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,518 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,518 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,518 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,519 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,521 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,522 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 13:32:08,524 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-10 13:32:08,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-10 13:32:08,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 13:32:08,563 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) [2022-02-10 13:32:08,584 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 [2022-02-10 13:32:08,603 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 13:32:08,608 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 [2022-02-10 13:32:08,608 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 13:32:08,672 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 44 transitions and produced 45 states. [2022-02-10 13:32:08,674 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-10 13:32:08,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 13:32:08,677 INFO L85 PathProgramCache]: Analyzing trace with hash 698079731, now seen corresponding path program 1 times [2022-02-10 13:32:08,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 13:32:08,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337280664] [2022-02-10 13:32:08,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 13:32:08,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 13:32:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 13:32:08,820 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 13:32:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 13:32:08,873 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 13:32:08,875 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-10 13:32:08,876 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 13:32:08,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 13:32:08,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-02-10 13:32:08,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 13:32:08,887 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-10 13:32:08,891 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 13:32:08,892 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 13:32:08,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 01:32:08 BasicIcfg [2022-02-10 13:32:08,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 13:32:08,928 INFO L158 Benchmark]: Toolchain (without parser) took 1099.00ms. Allocated memory is still 213.9MB. Free memory was 161.8MB in the beginning and 139.5MB in the end (delta: 22.2MB). Peak memory consumption was 22.5MB. Max. memory is 8.0GB. [2022-02-10 13:32:08,928 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory is still 179.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 13:32:08,928 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.99ms. Allocated memory is still 213.9MB. Free memory was 161.5MB in the beginning and 182.0MB in the end (delta: -20.5MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-02-10 13:32:08,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.66ms. Allocated memory is still 213.9MB. Free memory was 182.0MB in the beginning and 180.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-10 13:32:08,929 INFO L158 Benchmark]: Boogie Preprocessor took 13.58ms. Allocated memory is still 213.9MB. Free memory was 180.3MB in the beginning and 178.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 13:32:08,929 INFO L158 Benchmark]: RCFGBuilder took 200.37ms. Allocated memory is still 213.9MB. Free memory was 178.9MB in the beginning and 168.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-10 13:32:08,930 INFO L158 Benchmark]: TraceAbstraction took 458.46ms. Allocated memory is still 213.9MB. Free memory was 167.8MB in the beginning and 139.5MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-02-10 13:32:08,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 213.9MB. Free memory is still 179.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 390.99ms. Allocated memory is still 213.9MB. Free memory was 161.5MB in the beginning and 182.0MB in the end (delta: -20.5MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.66ms. Allocated memory is still 213.9MB. Free memory was 182.0MB in the beginning and 180.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.58ms. Allocated memory is still 213.9MB. Free memory was 180.3MB in the beginning and 178.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 200.37ms. Allocated memory is still 213.9MB. Free memory was 178.9MB in the beginning and 168.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 458.46ms. Allocated memory is still 213.9MB. Free memory was 167.8MB in the beginning and 139.5MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; VAL [x=3] [L689] 0 pthread_t id; VAL [id={3:0}, x=3] [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L691] 0 return 0; VAL [\result=0, id={3:0}, x=3] [L691] 0 return 0; VAL [\result=0, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=3, arg={0:0}, arg={0:0}, x=3] [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: 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 with 1 thread instances CFG has 3 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, 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: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-10 13:32:08,970 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 [2022-02-10 13:32:09,173 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...