/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_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 17:05:41,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 17:05:41,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 17:05:41,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 17:05:41,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 17:05:41,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 17:05:41,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 17:05:41,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 17:05:41,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 17:05:41,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 17:05:41,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 17:05:41,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 17:05:41,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 17:05:41,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 17:05:41,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 17:05:41,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 17:05:41,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 17:05:41,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 17:05:41,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 17:05:41,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 17:05:41,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 17:05:41,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 17:05:41,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 17:05:41,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 17:05:41,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-16 17:05:41,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-16 17:05:41,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-16 17:05:41,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-16 17:05:41,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-16 17:05:41,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-16 17:05:41,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-16 17:05:41,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-16 17:05:41,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-16 17:05:41,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-16 17:05:41,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-16 17:05:41,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-16 17:05:41,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-16 17:05:41,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-16 17:05:41,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 17:05:41,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 17:05:41,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 17:05:41,374 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 [2022-03-16 17:05:41,399 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 17:05:41,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 17:05:41,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 17:05:41,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 17:05:41,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 17:05:41,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 17:05:41,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 17:05:41,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 17:05:41,401 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 17:05:41,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 17:05:41,401 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 17:05:41,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 17:05:41,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 17:05:41,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 17:05:41,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 17:05:41,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 17:05:41,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 17:05:41,402 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 17:05:41,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 17:05:41,402 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 17:05:41,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 17:05:41,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 17:05:41,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 17:05:41,403 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 17:05:41,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 17:05:41,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 17:05:41,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 17:05:41,404 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 17:05:41,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 17:05:41,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 17:05:41,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 17:05:41,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 17:05:41,405 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 17:05:41,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 17:05:41,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 17:05:41,405 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 17:05:41,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 17:05:41,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 17:05:41,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 17:05:41,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 17:05:41,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-16 17:05:41,625 INFO L275 PluginConnector]: CDTParser initialized [2022-03-16 17:05:41,626 INFO L432 ainManager$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_pos.i [2022-03-16 17:05:41,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540329a4a/a35c55ee68844267bb50fe63bf88cd11/FLAG68fad2583 [2022-03-16 17:05:42,018 INFO L306 CDTParser]: Found 1 translation units. [2022-03-16 17:05:42,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-03-16 17:05:42,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540329a4a/a35c55ee68844267bb50fe63bf88cd11/FLAG68fad2583 [2022-03-16 17:05:42,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/540329a4a/a35c55ee68844267bb50fe63bf88cd11 [2022-03-16 17:05:42,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 17:05:42,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-16 17:05:42,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-16 17:05:42,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-16 17:05:42,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-16 17:05:42,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e51cce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42, skipping insertion in model container [2022-03-16 17:05:42,449 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-16 17:05:42,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-16 17:05:42,649 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_pos.i[1102,1115] [2022-03-16 17:05:42,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 17:05:42,742 INFO L203 MainTranslator]: Completed pre-run [2022-03-16 17:05:42,754 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_pos.i[1102,1115] [2022-03-16 17:05:42,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-16 17:05:42,821 INFO L208 MainTranslator]: Completed translation [2022-03-16 17:05:42,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42 WrapperNode [2022-03-16 17:05:42,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-16 17:05:42,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 17:05:42,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 17:05:42,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 17:05:42,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,869 INFO L137 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-03-16 17:05:42,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 17:05:42,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 17:05:42,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 17:05:42,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 17:05:42,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 17:05:42,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 17:05:42,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 17:05:42,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 17:05:42,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (1/1) ... [2022-03-16 17:05:42,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 17:05:42,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 17:05:42,941 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) [2022-03-16 17:05:42,948 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 [2022-03-16 17:05:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-16 17:05:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-16 17:05:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-16 17:05:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-03-16 17:05:42,985 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-03-16 17:05:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-16 17:05:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-16 17:05:42,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 17:05:42,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 17:05:42,986 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 17:05:43,096 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 17:05:43,097 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 17:05:43,169 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 17:05:43,173 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 17:05:43,173 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 17:05:43,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 05:05:43 BoogieIcfgContainer [2022-03-16 17:05:43,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 17:05:43,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 17:05:43,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 17:05:43,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 17:05:43,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 05:05:42" (1/3) ... [2022-03-16 17:05:43,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8fa621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 05:05:43, skipping insertion in model container [2022-03-16 17:05:43,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 05:05:42" (2/3) ... [2022-03-16 17:05:43,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8fa621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 05:05:43, skipping insertion in model container [2022-03-16 17:05:43,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 05:05:43" (3/3) ... [2022-03-16 17:05:43,180 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-03-16 17:05:43,184 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 17:05:43,184 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 17:05:43,184 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 17:05:43,184 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 17:05:43,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,211 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,212 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,212 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,212 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,212 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,212 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,213 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,214 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,215 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,216 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,217 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,218 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,221 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,222 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,223 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,223 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,223 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,223 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,223 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 17:05:43,239 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-16 17:05:43,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 17:05:43,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 17:05:43,298 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) [2022-03-16 17:05:43,299 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 [2022-03-16 17:05:43,329 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 17:05:43,337 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-16 17:05:43,337 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 17:05:43,488 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 44 transitions and produced 45 states. [2022-03-16 17:05:43,490 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-16 17:05:43,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 17:05:43,496 INFO L85 PathProgramCache]: Analyzing trace with hash 698079731, now seen corresponding path program 1 times [2022-03-16 17:05:43,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 17:05:43,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724546232] [2022-03-16 17:05:43,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 17:05:43,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 17:05:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 17:05:43,640 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-16 17:05:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-16 17:05:43,700 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-16 17:05:43,701 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-16 17:05:43,702 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-16 17:05:43,703 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 17:05:43,704 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-03-16 17:05:43,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 17:05:43,709 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-03-16 17:05:43,712 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 17:05:43,712 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 17:05:43,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 05:05:43 BasicIcfg [2022-03-16 17:05:43,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 17:05:43,730 INFO L158 Benchmark]: Toolchain (without parser) took 1289.96ms. Allocated memory was 186.6MB in the beginning and 317.7MB in the end (delta: 131.1MB). Free memory was 129.4MB in the beginning and 213.2MB in the end (delta: -83.8MB). Peak memory consumption was 47.2MB. Max. memory is 8.0GB. [2022-03-16 17:05:43,730 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 17:05:43,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.06ms. Allocated memory was 186.6MB in the beginning and 317.7MB in the end (delta: 131.1MB). Free memory was 129.2MB in the beginning and 281.7MB in the end (delta: -152.5MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-03-16 17:05:43,731 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.73ms. Allocated memory is still 317.7MB. Free memory was 281.7MB in the beginning and 279.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 17:05:43,731 INFO L158 Benchmark]: Boogie Preprocessor took 28.36ms. Allocated memory is still 317.7MB. Free memory was 279.8MB in the beginning and 278.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 17:05:43,732 INFO L158 Benchmark]: RCFGBuilder took 275.11ms. Allocated memory is still 317.7MB. Free memory was 278.7MB in the beginning and 268.8MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 17:05:43,732 INFO L158 Benchmark]: TraceAbstraction took 553.35ms. Allocated memory is still 317.7MB. Free memory was 268.2MB in the beginning and 213.2MB in the end (delta: 55.0MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2022-03-16 17:05:43,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 387.06ms. Allocated memory was 186.6MB in the beginning and 317.7MB in the end (delta: 131.1MB). Free memory was 129.2MB in the beginning and 281.7MB in the end (delta: -152.5MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.73ms. Allocated memory is still 317.7MB. Free memory was 281.7MB in the beginning and 279.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.36ms. Allocated memory is still 317.7MB. Free memory was 279.8MB in the beginning and 278.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 275.11ms. Allocated memory is still 317.7MB. Free memory was 278.7MB in the beginning and 268.8MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 553.35ms. Allocated memory is still 317.7MB. Free memory was 268.2MB in the beginning and 213.2MB in the end (delta: 55.0MB). Peak memory consumption was 54.5MB. 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()=0, arg={0:0}, arg={0:0}, x=0] [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: 0.4s, 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! [2022-03-16 17:05:43,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-16 17:05:43,975 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...