./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_17-traces-rpb-litmus_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 dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:19:06,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:19:06,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:19:06,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:19:06,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:19:06,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:19:06,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:19:06,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:19:06,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:19:06,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:19:06,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:19:06,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:19:06,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:19:06,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:19:06,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:19:06,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:19:06,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:19:06,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:19:06,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:19:06,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:19:06,344 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:19:06,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:19:06,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:19:06,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:19:06,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:19:06,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:19:06,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:19:06,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:19:06,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:19:06,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:19:06,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:19:06,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:19:06,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:19:06,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:19:06,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:19:06,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:19:06,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:19:06,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:19:06,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:19:06,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:19:06,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:19:06,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:19:06,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 10:19:06,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:19:06,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:19:06,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:19:06,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:19:06,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:19:06,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:19:06,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:19:06,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:19:06,379 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:19:06,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:19:06,379 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 10:19:06,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:19:06,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 10:19:06,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:19:06,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:19:06,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:19:06,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:19:06,380 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 10:19:06,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:19:06,381 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:19:06,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:19:06,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:19:06,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:19:06,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:19:06,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:19:06,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:19:06,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:19:06,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:19:06,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:19:06,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:19:06,383 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:19:06,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:19:06,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:19:06,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2022-07-12 10:19:06,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:19:06,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:19:06,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:19:06,617 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:19:06,618 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:19:06,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-07-12 10:19:06,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe42e300/a950246808c5458489c910d956494e08/FLAG336bbcba7 [2022-07-12 10:19:07,107 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:19:07,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-07-12 10:19:07,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe42e300/a950246808c5458489c910d956494e08/FLAG336bbcba7 [2022-07-12 10:19:07,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fe42e300/a950246808c5458489c910d956494e08 [2022-07-12 10:19:07,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:19:07,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:19:07,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:19:07,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:19:07,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:19:07,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:07,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@640ad6cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07, skipping insertion in model container [2022-07-12 10:19:07,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:07,651 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:19:07,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:19:07,810 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_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-07-12 10:19:07,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:19:07,902 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:19:07,917 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_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-07-12 10:19:07,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:19:07,991 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:19:07,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07 WrapperNode [2022-07-12 10:19:07,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:19:07,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:19:07,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:19:07,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:19:07,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:08,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:08,022 INFO L137 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-07-12 10:19:08,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:19:08,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:19:08,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:19:08,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:19:08,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:08,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:08,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:08,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:08,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:08,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:08,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:08,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:19:08,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:19:08,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:19:08,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:19:08,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (1/1) ... [2022-07-12 10:19:08,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:19:08,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:19:08,063 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) [2022-07-12 10:19:08,068 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 [2022-07-12 10:19:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:19:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-12 10:19:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:19:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:19:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-12 10:19:08,100 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-12 10:19:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:19:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:19:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:19:08,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:19:08,101 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-12 10:19:08,189 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:19:08,192 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:19:08,341 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:19:08,346 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:19:08,346 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 10:19:08,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:19:08 BoogieIcfgContainer [2022-07-12 10:19:08,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:19:08,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:19:08,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:19:08,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:19:08,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:19:07" (1/3) ... [2022-07-12 10:19:08,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b9576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:19:08, skipping insertion in model container [2022-07-12 10:19:08,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:19:07" (2/3) ... [2022-07-12 10:19:08,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b9576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:19:08, skipping insertion in model container [2022-07-12 10:19:08,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:19:08" (3/3) ... [2022-07-12 10:19:08,353 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-07-12 10:19:08,356 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-12 10:19:08,362 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:19:08,362 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 10:19:08,362 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-12 10:19:08,389 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-12 10:19:08,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2022-07-12 10:19:08,432 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2022-07-12 10:19:08,432 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-12 10:19:08,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-07-12 10:19:08,435 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 161 flow [2022-07-12 10:19:08,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 65 transitions, 133 flow [2022-07-12 10:19:08,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:19:08,461 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@7751d77a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@24f14e9 [2022-07-12 10:19:08,462 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 10:19:08,481 INFO L129 PetriNetUnfolder]: 1/64 cut-off events. [2022-07-12 10:19:08,482 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-12 10:19:08,483 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:19:08,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 10:19:08,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-12 10:19:08,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:19:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash -280445477, now seen corresponding path program 1 times [2022-07-12 10:19:08,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:19:08,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445564005] [2022-07-12 10:19:08,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:19:08,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:19:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 10:19:08,645 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 10:19:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 10:19:08,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 10:19:08,737 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 10:19:08,738 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-12 10:19:08,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-07-12 10:19:08,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 10:19:08,740 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-12 10:19:08,747 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-12 10:19:08,747 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 10:19:08,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 10:19:08 BasicIcfg [2022-07-12 10:19:08,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 10:19:08,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 10:19:08,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 10:19:08,794 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 10:19:08,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:19:08" (3/4) ... [2022-07-12 10:19:08,795 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-12 10:19:08,846 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 10:19:08,850 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 10:19:08,851 INFO L158 Benchmark]: Toolchain (without parser) took 1209.05ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 62.2MB in the beginning and 76.8MB in the end (delta: -14.6MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-07-12 10:19:08,852 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 100.7MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 10:19:08,853 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.81ms. Allocated memory is still 100.7MB. Free memory was 62.0MB in the beginning and 66.3MB in the end (delta: -4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 10:19:08,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.66ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 64.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 10:19:08,854 INFO L158 Benchmark]: Boogie Preprocessor took 14.82ms. Allocated memory is still 100.7MB. Free memory was 64.3MB in the beginning and 63.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 10:19:08,855 INFO L158 Benchmark]: RCFGBuilder took 309.07ms. Allocated memory is still 100.7MB. Free memory was 63.0MB in the beginning and 50.9MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 10:19:08,855 INFO L158 Benchmark]: TraceAbstraction took 443.77ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 50.4MB in the beginning and 80.4MB in the end (delta: -30.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 10:19:08,855 INFO L158 Benchmark]: Witness Printer took 57.07ms. Allocated memory is still 121.6MB. Free memory was 80.4MB in the beginning and 76.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 10:19:08,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 100.7MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.81ms. Allocated memory is still 100.7MB. Free memory was 62.0MB in the beginning and 66.3MB in the end (delta: -4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.66ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 64.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.82ms. Allocated memory is still 100.7MB. Free memory was 64.3MB in the beginning and 63.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 309.07ms. Allocated memory is still 100.7MB. Free memory was 63.0MB in the beginning and 50.9MB in the end (delta: 12.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 443.77ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 50.4MB in the beginning and 80.4MB in the end (delta: -30.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.07ms. Allocated memory is still 121.6MB. Free memory was 80.4MB in the beginning and 76.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. 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: [L682] 0 int g = 42; VAL [g=42] [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=42] [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, B={4:0}, g=42] [L694] 0 int r = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, A={3:0}, B={4:0}, g=42, r=0] [L695] 0 int t; VAL [A={3:0}, B={4:0}, g=42, r=0] [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=42, id={5:0}, r=0] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=0] [L705] 0 t = g VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=0, t=42] [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - UnprovableResult [Line: 697]: 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, 89 locations, 2 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: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 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! [2022-07-12 10:19:08,892 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