./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 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_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-?-791161d [2022-07-22 21:36:05,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 21:36:05,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 21:36:05,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 21:36:05,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 21:36:05,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 21:36:05,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 21:36:05,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 21:36:05,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 21:36:05,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 21:36:05,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 21:36:05,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 21:36:05,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 21:36:05,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 21:36:05,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 21:36:05,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 21:36:05,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 21:36:05,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 21:36:05,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 21:36:05,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 21:36:05,789 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 21:36:05,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 21:36:05,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 21:36:05,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 21:36:05,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 21:36:05,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 21:36:05,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 21:36:05,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 21:36:05,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 21:36:05,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 21:36:05,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 21:36:05,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 21:36:05,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 21:36:05,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 21:36:05,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 21:36:05,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 21:36:05,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 21:36:05,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 21:36:05,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 21:36:05,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 21:36:05,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 21:36:05,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 21:36:05,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 21:36:05,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 21:36:05,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 21:36:05,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 21:36:05,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 21:36:05,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 21:36:05,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 21:36:05,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 21:36:05,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 21:36:05,861 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 21:36:05,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 21:36:05,862 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 21:36:05,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 21:36:05,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 21:36:05,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 21:36:05,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 21:36:05,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 21:36:05,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 21:36:05,863 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 21:36:05,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 21:36:05,864 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 21:36:05,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 21:36:05,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 21:36:05,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 21:36:05,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 21:36:05,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:36:05,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 21:36:05,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 21:36:05,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 21:36:05,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 21:36:05,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 21:36:05,875 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 21:36:05,875 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 21:36:05,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 21:36:05,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2022-07-22 21:36:06,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 21:36:06,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 21:36:06,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 21:36:06,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 21:36:06,124 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 21:36:06,125 INFO L432 ainManager$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 [2022-07-22 21:36:06,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac3c20cb/971eace5c9ea450880417e31dc100b6f/FLAG680b1cfa4 [2022-07-22 21:36:06,664 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 21:36:06,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-07-22 21:36:06,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac3c20cb/971eace5c9ea450880417e31dc100b6f/FLAG680b1cfa4 [2022-07-22 21:36:06,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac3c20cb/971eace5c9ea450880417e31dc100b6f [2022-07-22 21:36:06,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 21:36:06,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 21:36:06,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 21:36:06,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 21:36:06,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 21:36:06,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:36:06" (1/1) ... [2022-07-22 21:36:06,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45ce333b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:06, skipping insertion in model container [2022-07-22 21:36:06,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:36:06" (1/1) ... [2022-07-22 21:36:06,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 21:36:06,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 21:36:06,847 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] [2022-07-22 21:36:06,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:36:06,991 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 21:36:07,002 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] [2022-07-22 21:36:07,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:36:07,068 INFO L208 MainTranslator]: Completed translation [2022-07-22 21:36:07,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07 WrapperNode [2022-07-22 21:36:07,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 21:36:07,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 21:36:07,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 21:36:07,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 21:36:07,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (1/1) ... [2022-07-22 21:36:07,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (1/1) ... [2022-07-22 21:36:07,127 INFO L137 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-07-22 21:36:07,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 21:36:07,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 21:36:07,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 21:36:07,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 21:36:07,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (1/1) ... [2022-07-22 21:36:07,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (1/1) ... [2022-07-22 21:36:07,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (1/1) ... [2022-07-22 21:36:07,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (1/1) ... [2022-07-22 21:36:07,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (1/1) ... [2022-07-22 21:36:07,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (1/1) ... [2022-07-22 21:36:07,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (1/1) ... [2022-07-22 21:36:07,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 21:36:07,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 21:36:07,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 21:36:07,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 21:36:07,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (1/1) ... [2022-07-22 21:36:07,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:36:07,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:36:07,201 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 21:36:07,203 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 21:36:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 21:36:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-22 21:36:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 21:36:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 21:36:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-22 21:36:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-22 21:36:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 21:36:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 21:36:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 21:36:07,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 21:36:07,244 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 21:36:07,376 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 21:36:07,377 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 21:36:07,510 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 21:36:07,516 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 21:36:07,517 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 21:36:07,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:36:07 BoogieIcfgContainer [2022-07-22 21:36:07,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 21:36:07,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 21:36:07,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 21:36:07,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 21:36:07,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:36:06" (1/3) ... [2022-07-22 21:36:07,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0dfac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:36:07, skipping insertion in model container [2022-07-22 21:36:07,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:07" (2/3) ... [2022-07-22 21:36:07,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0dfac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:36:07, skipping insertion in model container [2022-07-22 21:36:07,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:36:07" (3/3) ... [2022-07-22 21:36:07,542 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-07-22 21:36:07,546 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 21:36:07,554 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 21:36:07,554 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 21:36:07,555 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 21:36:07,594 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-22 21:36:07,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2022-07-22 21:36:07,681 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2022-07-22 21:36:07,682 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:36:07,685 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. [2022-07-22 21:36:07,685 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 161 flow [2022-07-22 21:36:07,690 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 65 transitions, 133 flow [2022-07-22 21:36:07,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:36:07,715 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@5eca0a0f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5eb5b686 [2022-07-22 21:36:07,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-22 21:36:07,740 INFO L129 PetriNetUnfolder]: 1/64 cut-off events. [2022-07-22 21:36:07,740 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:36:07,741 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:36:07,742 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] [2022-07-22 21:36:07,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-22 21:36:07,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:36:07,747 INFO L85 PathProgramCache]: Analyzing trace with hash -280445477, now seen corresponding path program 1 times [2022-07-22 21:36:07,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:36:07,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618431430] [2022-07-22 21:36:07,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:36:07,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:36:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:36:07,904 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:36:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:36:07,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:36:07,991 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:36:07,992 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-22 21:36:07,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-07-22 21:36:07,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 21:36:07,995 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 21:36:07,999 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-22 21:36:07,999 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 21:36:08,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 09:36:08 BasicIcfg [2022-07-22 21:36:08,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 21:36:08,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 21:36:08,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 21:36:08,044 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 21:36:08,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:36:07" (3/4) ... [2022-07-22 21:36:08,046 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 21:36:08,104 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 21:36:08,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 21:36:08,105 INFO L158 Benchmark]: Toolchain (without parser) took 1413.85ms. Allocated memory is still 123.7MB. Free memory was 99.3MB in the beginning and 67.9MB in the end (delta: 31.4MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2022-07-22 21:36:08,106 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 60.1MB in the beginning and 60.0MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 21:36:08,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.49ms. Allocated memory is still 123.7MB. Free memory was 99.3MB in the beginning and 80.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-22 21:36:08,111 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.27ms. Allocated memory is still 123.7MB. Free memory was 80.6MB in the beginning and 78.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 21:36:08,112 INFO L158 Benchmark]: Boogie Preprocessor took 40.21ms. Allocated memory is still 123.7MB. Free memory was 78.7MB in the beginning and 77.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 21:36:08,113 INFO L158 Benchmark]: RCFGBuilder took 349.21ms. Allocated memory is still 123.7MB. Free memory was 77.3MB in the beginning and 65.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 21:36:08,113 INFO L158 Benchmark]: TraceAbstraction took 507.55ms. Allocated memory is still 123.7MB. Free memory was 99.2MB in the beginning and 72.1MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-07-22 21:36:08,113 INFO L158 Benchmark]: Witness Printer took 60.44ms. Allocated memory is still 123.7MB. Free memory was 71.6MB in the beginning and 67.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 21:36:08,115 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 88.1MB. Free memory was 60.1MB in the beginning and 60.0MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.49ms. Allocated memory is still 123.7MB. Free memory was 99.3MB in the beginning and 80.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.27ms. Allocated memory is still 123.7MB. Free memory was 80.6MB in the beginning and 78.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.21ms. Allocated memory is still 123.7MB. Free memory was 78.7MB in the beginning and 77.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.21ms. Allocated memory is still 123.7MB. Free memory was 77.3MB in the beginning and 65.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 507.55ms. Allocated memory is still 123.7MB. Free memory was 99.2MB in the beginning and 72.1MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 60.44ms. Allocated memory is still 123.7MB. Free memory was 71.6MB in the beginning and 67.9MB in the end (delta: 3.7MB). 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: 0.4s, 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=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! [2022-07-22 21:36:08,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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