./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 13:40:03,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 13:40:03,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 13:40:03,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 13:40:03,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 13:40:03,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 13:40:03,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 13:40:03,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 13:40:03,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 13:40:03,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 13:40:03,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 13:40:03,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 13:40:03,075 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 13:40:03,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 13:40:03,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 13:40:03,080 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 13:40:03,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 13:40:03,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 13:40:03,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 13:40:03,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 13:40:03,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 13:40:03,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 13:40:03,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 13:40:03,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 13:40:03,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 13:40:03,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 13:40:03,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 13:40:03,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 13:40:03,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 13:40:03,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 13:40:03,098 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 13:40:03,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 13:40:03,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 13:40:03,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 13:40:03,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 13:40:03,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 13:40:03,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 13:40:03,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 13:40:03,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 13:40:03,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 13:40:03,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 13:40:03,105 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 13:40:03,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 13:40:03,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 13:40:03,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 13:40:03,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 13:40:03,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 13:40:03,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 13:40:03,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 13:40:03,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 13:40:03,137 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 13:40:03,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 13:40:03,138 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 13:40:03,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 13:40:03,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 13:40:03,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 13:40:03,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 13:40:03,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 13:40:03,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 13:40:03,139 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 13:40:03,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 13:40:03,139 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 13:40:03,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 13:40:03,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 13:40:03,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 13:40:03,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 13:40:03,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 13:40:03,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 13:40:03,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 13:40:03,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 13:40:03,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 13:40:03,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 13:40:03,142 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 13:40:03,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 13:40:03,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 13:40:03,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 13:40:03,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2021-12-22 13:40:03,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 13:40:03,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 13:40:03,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 13:40:03,537 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 13:40:03,539 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 13:40:03,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-12-22 13:40:03,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2dbfab3b/98d284ba3f3044bfbf696420af5c11d7/FLAG675de621f [2021-12-22 13:40:04,018 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 13:40:04,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-12-22 13:40:04,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2dbfab3b/98d284ba3f3044bfbf696420af5c11d7/FLAG675de621f [2021-12-22 13:40:04,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2dbfab3b/98d284ba3f3044bfbf696420af5c11d7 [2021-12-22 13:40:04,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 13:40:04,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 13:40:04,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 13:40:04,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 13:40:04,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 13:40:04,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38ddea2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04, skipping insertion in model container [2021-12-22 13:40:04,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 13:40:04,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 13:40:04,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2021-12-22 13:40:04,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 13:40:04,289 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 13:40:04,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2021-12-22 13:40:04,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 13:40:04,336 INFO L208 MainTranslator]: Completed translation [2021-12-22 13:40:04,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04 WrapperNode [2021-12-22 13:40:04,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 13:40:04,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 13:40:04,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 13:40:04,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 13:40:04,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,363 INFO L137 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-12-22 13:40:04,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 13:40:04,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 13:40:04,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 13:40:04,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 13:40:04,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 13:40:04,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 13:40:04,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 13:40:04,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 13:40:04,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (1/1) ... [2021-12-22 13:40:04,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 13:40:04,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 13:40:04,421 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) [2021-12-22 13:40:04,438 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 [2021-12-22 13:40:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 13:40:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 13:40:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 13:40:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-22 13:40:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-22 13:40:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 13:40:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 13:40:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 13:40:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 13:40:04,448 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-22 13:40:04,511 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 13:40:04,512 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 13:40:04,587 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 13:40:04,591 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 13:40:04,591 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 13:40:04,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:40:04 BoogieIcfgContainer [2021-12-22 13:40:04,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 13:40:04,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 13:40:04,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 13:40:04,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 13:40:04,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:40:04" (1/3) ... [2021-12-22 13:40:04,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649d38c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:40:04, skipping insertion in model container [2021-12-22 13:40:04,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:40:04" (2/3) ... [2021-12-22 13:40:04,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@649d38c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:40:04, skipping insertion in model container [2021-12-22 13:40:04,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:40:04" (3/3) ... [2021-12-22 13:40:04,602 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2021-12-22 13:40:04,606 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-22 13:40:04,606 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 13:40:04,606 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 13:40:04,606 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-22 13:40:04,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,624 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,625 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,626 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,627 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,628 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,629 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,630 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,631 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,632 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~x~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,635 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,636 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,636 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,636 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-22 13:40:04,638 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-12-22 13:40:04,671 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 13:40:04,676 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=PETRI_NET, 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 [2021-12-22 13:40:04,676 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-22 13:40:04,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2021-12-22 13:40:04,716 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2021-12-22 13:40:04,717 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-22 13:40:04,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 1/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2021-12-22 13:40:04,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 43 transitions, 91 flow [2021-12-22 13:40:04,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2021-12-22 13:40:04,730 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-12-22 13:40:04,731 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-22 13:40:04,731 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-22 13:40:04,732 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 13:40:04,732 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 13:40:04,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 13:40:04,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1764370604, now seen corresponding path program 1 times [2021-12-22 13:40:04,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 13:40:04,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575685809] [2021-12-22 13:40:04,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 13:40:04,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 13:40:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 13:40:04,825 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 13:40:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 13:40:04,853 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-22 13:40:04,854 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-22 13:40:04,855 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-12-22 13:40:04,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-12-22 13:40:04,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-12-22 13:40:04,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 13:40:04,859 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-22 13:40:04,863 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-22 13:40:04,863 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 13:40:04,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 01:40:04 BasicIcfg [2021-12-22 13:40:04,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 13:40:04,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 13:40:04,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 13:40:04,889 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 13:40:04,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:40:04" (3/4) ... [2021-12-22 13:40:04,891 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-22 13:40:04,920 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-22 13:40:04,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 13:40:04,921 INFO L158 Benchmark]: Toolchain (without parser) took 876.44ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 91.1MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 13:40:04,921 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 13:40:04,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.11ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 85.2MB in the end (delta: 2.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-12-22 13:40:04,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.55ms. Allocated memory is still 117.4MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 13:40:04,922 INFO L158 Benchmark]: Boogie Preprocessor took 13.21ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.2MB in the end (delta: 953.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 13:40:04,923 INFO L158 Benchmark]: RCFGBuilder took 215.55ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 72.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 13:40:04,923 INFO L158 Benchmark]: TraceAbstraction took 294.11ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 93.6MB in the end (delta: -21.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-22 13:40:04,923 INFO L158 Benchmark]: Witness Printer took 31.29ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 91.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 13:40:04,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.11ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 85.2MB in the end (delta: 2.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.55ms. Allocated memory is still 117.4MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.21ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 82.2MB in the end (delta: 953.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 215.55ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 72.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 294.11ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 93.6MB in the end (delta: -21.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 31.29ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 91.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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] [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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 28 NumberOfCodeBlocks, 28 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! [2021-12-22 13:40:04,952 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE