./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 791161d1 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-?-791161d [2022-07-22 21:36:11,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 21:36:11,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 21:36:11,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 21:36:11,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 21:36:11,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 21:36:11,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 21:36:11,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 21:36:11,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 21:36:11,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 21:36:11,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 21:36:11,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 21:36:11,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 21:36:11,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 21:36:11,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 21:36:11,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 21:36:11,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 21:36:11,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 21:36:11,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 21:36:11,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 21:36:11,244 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 21:36:11,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 21:36:11,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 21:36:11,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 21:36:11,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 21:36:11,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 21:36:11,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 21:36:11,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 21:36:11,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 21:36:11,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 21:36:11,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 21:36:11,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 21:36:11,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 21:36:11,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 21:36:11,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 21:36:11,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 21:36:11,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 21:36:11,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 21:36:11,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 21:36:11,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 21:36:11,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 21:36:11,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 21:36:11,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 21:36:11,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 21:36:11,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 21:36:11,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 21:36:11,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 21:36:11,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 21:36:11,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 21:36:11,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 21:36:11,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 21:36:11,308 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 21:36:11,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 21:36:11,309 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 21:36:11,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 21:36:11,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 21:36:11,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 21:36:11,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 21:36:11,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 21:36:11,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 21:36:11,310 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 21:36:11,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 21:36:11,310 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 21:36:11,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 21:36:11,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 21:36:11,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 21:36:11,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 21:36:11,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:36:11,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 21:36:11,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 21:36:11,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 21:36:11,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 21:36:11,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 21:36:11,312 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 21:36:11,313 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 21:36:11,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 21:36:11,313 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 [2022-07-22 21:36:11,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 21:36:11,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 21:36:11,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 21:36:11,585 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 21:36:11,586 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 21:36:11,587 INFO L432 ainManager$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 [2022-07-22 21:36:11,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc35b7273/0b783d69fa58477399f92fb6fb9d4c3e/FLAGfa9c22421 [2022-07-22 21:36:12,172 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 21:36:12,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-07-22 21:36:12,193 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc35b7273/0b783d69fa58477399f92fb6fb9d4c3e/FLAGfa9c22421 [2022-07-22 21:36:12,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc35b7273/0b783d69fa58477399f92fb6fb9d4c3e [2022-07-22 21:36:12,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 21:36:12,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 21:36:12,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 21:36:12,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 21:36:12,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 21:36:12,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:36:12" (1/1) ... [2022-07-22 21:36:12,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f2ef93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:12, skipping insertion in model container [2022-07-22 21:36:12,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:36:12" (1/1) ... [2022-07-22 21:36:12,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 21:36:12,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 21:36:12,807 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] [2022-07-22 21:36:12,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:36:12,948 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 21:36:12,964 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] [2022-07-22 21:36:12,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:36:13,028 INFO L208 MainTranslator]: Completed translation [2022-07-22 21:36:13,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13 WrapperNode [2022-07-22 21:36:13,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 21:36:13,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 21:36:13,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 21:36:13,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 21:36:13,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (1/1) ... [2022-07-22 21:36:13,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (1/1) ... [2022-07-22 21:36:13,076 INFO L137 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-07-22 21:36:13,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 21:36:13,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 21:36:13,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 21:36:13,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 21:36:13,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (1/1) ... [2022-07-22 21:36:13,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (1/1) ... [2022-07-22 21:36:13,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (1/1) ... [2022-07-22 21:36:13,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (1/1) ... [2022-07-22 21:36:13,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (1/1) ... [2022-07-22 21:36:13,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (1/1) ... [2022-07-22 21:36:13,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (1/1) ... [2022-07-22 21:36:13,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 21:36:13,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 21:36:13,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 21:36:13,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 21:36:13,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (1/1) ... [2022-07-22 21:36:13,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:36:13,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:36:13,143 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) [2022-07-22 21:36:13,144 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 [2022-07-22 21:36:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 21:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 21:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 21:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-22 21:36:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-22 21:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 21:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 21:36:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 21:36:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 21:36:13,178 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-22 21:36:13,255 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 21:36:13,256 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 21:36:13,354 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 21:36:13,360 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 21:36:13,360 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 21:36:13,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:36:13 BoogieIcfgContainer [2022-07-22 21:36:13,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 21:36:13,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 21:36:13,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 21:36:13,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 21:36:13,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:36:12" (1/3) ... [2022-07-22 21:36:13,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f293e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:36:13, skipping insertion in model container [2022-07-22 21:36:13,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:13" (2/3) ... [2022-07-22 21:36:13,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f293e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:36:13, skipping insertion in model container [2022-07-22 21:36:13,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:36:13" (3/3) ... [2022-07-22 21:36:13,380 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-07-22 21:36:13,384 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 21:36:13,393 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 21:36:13,393 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 21:36:13,393 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 21:36:13,451 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-22 21:36:13,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 91 flow [2022-07-22 21:36:13,532 INFO L129 PetriNetUnfolder]: 1/42 cut-off events. [2022-07-22 21:36:13,532 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:36:13,536 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. [2022-07-22 21:36:13,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 43 transitions, 91 flow [2022-07-22 21:36:13,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2022-07-22 21:36:13,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:36:13,563 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6862b216, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1a36f2b3 [2022-07-22 21:36:13,564 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-22 21:36:13,579 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2022-07-22 21:36:13,580 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:36:13,580 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:36:13,581 INFO L200 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] [2022-07-22 21:36:13,582 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 21:36:13,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:36:13,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1764370604, now seen corresponding path program 1 times [2022-07-22 21:36:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:36:13,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497921798] [2022-07-22 21:36:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:36:13,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:36:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:36:13,727 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:36:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:36:13,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:36:13,792 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:36:13,793 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-07-22 21:36:13,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-07-22 21:36:13,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-07-22 21:36:13,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 21:36:13,796 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 21:36:13,803 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-22 21:36:13,804 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 21:36:13,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 09:36:13 BasicIcfg [2022-07-22 21:36:13,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 21:36:13,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 21:36:13,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 21:36:13,876 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 21:36:13,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:36:13" (3/4) ... [2022-07-22 21:36:13,878 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 21:36:13,935 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 21:36:13,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 21:36:13,937 INFO L158 Benchmark]: Toolchain (without parser) took 1285.21ms. Allocated memory is still 111.1MB. Free memory was 85.5MB in the beginning and 84.7MB in the end (delta: 765.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 21:36:13,937 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 21:36:13,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.25ms. Allocated memory is still 111.1MB. Free memory was 85.2MB in the beginning and 67.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-22 21:36:13,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.24ms. Allocated memory is still 111.1MB. Free memory was 67.5MB in the beginning and 65.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 21:36:13,939 INFO L158 Benchmark]: Boogie Preprocessor took 35.78ms. Allocated memory is still 111.1MB. Free memory was 65.6MB in the beginning and 64.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 21:36:13,940 INFO L158 Benchmark]: RCFGBuilder took 248.22ms. Allocated memory is still 111.1MB. Free memory was 64.6MB in the beginning and 53.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 21:36:13,940 INFO L158 Benchmark]: TraceAbstraction took 510.63ms. Allocated memory is still 111.1MB. Free memory was 53.3MB in the beginning and 87.1MB in the end (delta: -33.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-07-22 21:36:13,940 INFO L158 Benchmark]: Witness Printer took 60.27ms. Allocated memory is still 111.1MB. Free memory was 87.1MB in the beginning and 84.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 21:36:13,946 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 81.8MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.25ms. Allocated memory is still 111.1MB. Free memory was 85.2MB in the beginning and 67.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.24ms. Allocated memory is still 111.1MB. Free memory was 67.5MB in the beginning and 65.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.78ms. Allocated memory is still 111.1MB. Free memory was 65.6MB in the beginning and 64.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 248.22ms. Allocated memory is still 111.1MB. Free memory was 64.6MB in the beginning and 53.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 510.63ms. Allocated memory is still 111.1MB. Free memory was 53.3MB in the beginning and 87.1MB in the end (delta: -33.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 60.27ms. Allocated memory is still 111.1MB. Free memory was 87.1MB in the beginning and 84.7MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, 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! [2022-07-22 21:36:13,986 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