./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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/13-privatized_41-traces-ex-7_unknown_1_neg.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 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 21:17:14,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:17:14,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:17:14,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:17:14,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:17:14,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:17:14,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:17:14,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:17:14,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:17:14,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:17:14,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:17:14,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:17:14,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:17:14,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:17:14,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:17:14,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:17:14,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:17:14,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:17:14,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:17:14,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:17:14,572 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:17:14,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:17:14,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:17:14,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:17:14,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:17:14,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:17:14,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:17:14,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:17:14,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:17:14,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:17:14,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:17:14,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:17:14,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:17:14,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:17:14,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:17:14,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:17:14,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:17:14,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:17:14,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:17:14,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:17:14,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:17:14,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:17:14,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 21:17:14,625 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:17:14,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:17:14,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:17:14,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:17:14,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:17:14,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:17:14,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:17:14,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:17:14,628 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:17:14,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:17:14,629 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 21:17:14,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:17:14,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 21:17:14,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:17:14,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:17:14,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:17:14,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:17:14,630 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 21:17:14,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:17:14,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:17:14,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:17:14,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:17:14,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:17:14,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:17:14,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:17:14,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:17:14,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:17:14,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:17:14,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:17:14,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:17:14,634 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:17:14,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:17:14,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:17:14,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c [2022-07-19 21:17:14,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:17:14,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:17:14,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:17:14,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:17:14,886 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:17:14,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-07-19 21:17:14,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8ed681b/0686d268013a49988be599850ee0fa41/FLAG66bad3b0e [2022-07-19 21:17:15,472 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:17:15,472 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-07-19 21:17:15,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8ed681b/0686d268013a49988be599850ee0fa41/FLAG66bad3b0e [2022-07-19 21:17:15,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8ed681b/0686d268013a49988be599850ee0fa41 [2022-07-19 21:17:15,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:17:15,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:17:15,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:17:15,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:17:15,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:17:15,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:17:15" (1/1) ... [2022-07-19 21:17:15,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c78550c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:15, skipping insertion in model container [2022-07-19 21:17:15,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:17:15" (1/1) ... [2022-07-19 21:17:15,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:17:15,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:17:16,017 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/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-07-19 21:17:16,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:17:16,193 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:17:16,205 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/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-07-19 21:17:16,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:17:16,279 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:17:16,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16 WrapperNode [2022-07-19 21:17:16,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:17:16,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:17:16,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:17:16,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:17:16,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (1/1) ... [2022-07-19 21:17:16,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (1/1) ... [2022-07-19 21:17:16,339 INFO L137 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-07-19 21:17:16,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:17:16,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:17:16,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:17:16,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:17:16,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (1/1) ... [2022-07-19 21:17:16,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (1/1) ... [2022-07-19 21:17:16,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (1/1) ... [2022-07-19 21:17:16,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (1/1) ... [2022-07-19 21:17:16,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (1/1) ... [2022-07-19 21:17:16,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (1/1) ... [2022-07-19 21:17:16,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (1/1) ... [2022-07-19 21:17:16,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:17:16,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:17:16,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:17:16,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:17:16,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (1/1) ... [2022-07-19 21:17:16,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:17:16,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:17:16,417 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) [2022-07-19 21:17:16,419 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 [2022-07-19 21:17:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:17:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-19 21:17:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:17:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:17:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-19 21:17:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-19 21:17:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:17:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:17:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:17:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:17:16,449 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-19 21:17:16,531 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:17:16,535 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:17:16,659 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:17:16,664 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:17:16,664 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 21:17:16,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:17:16 BoogieIcfgContainer [2022-07-19 21:17:16,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:17:16,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:17:16,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:17:16,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:17:16,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:17:15" (1/3) ... [2022-07-19 21:17:16,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c00f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:17:16, skipping insertion in model container [2022-07-19 21:17:16,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:17:16" (2/3) ... [2022-07-19 21:17:16,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c00f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:17:16, skipping insertion in model container [2022-07-19 21:17:16,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:17:16" (3/3) ... [2022-07-19 21:17:16,692 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-07-19 21:17:16,703 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-19 21:17:16,718 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:17:16,718 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 21:17:16,718 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-19 21:17:16,748 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-19 21:17:16,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 66 transitions, 137 flow [2022-07-19 21:17:16,804 INFO L129 PetriNetUnfolder]: 1/65 cut-off events. [2022-07-19 21:17:16,804 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-19 21:17:16,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 65 events. 1/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2022-07-19 21:17:16,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 66 transitions, 137 flow [2022-07-19 21:17:16,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 55 transitions, 113 flow [2022-07-19 21:17:16,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:17:16,824 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@31c661b0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@62af37d4 [2022-07-19 21:17:16,824 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 21:17:16,838 INFO L129 PetriNetUnfolder]: 0/54 cut-off events. [2022-07-19 21:17:16,838 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-19 21:17:16,839 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:17:16,839 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] [2022-07-19 21:17:16,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-19 21:17:16,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:17:16,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1593244809, now seen corresponding path program 1 times [2022-07-19 21:17:16,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:17:16,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564930026] [2022-07-19 21:17:16,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:17:16,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:17:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 21:17:17,030 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 21:17:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 21:17:17,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 21:17:17,130 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 21:17:17,131 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-19 21:17:17,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-07-19 21:17:17,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 21:17:17,133 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-19 21:17:17,143 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-19 21:17:17,143 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 21:17:17,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:17:17 BasicIcfg [2022-07-19 21:17:17,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 21:17:17,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 21:17:17,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 21:17:17,190 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 21:17:17,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:17:16" (3/4) ... [2022-07-19 21:17:17,192 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 21:17:17,255 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 21:17:17,255 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 21:17:17,256 INFO L158 Benchmark]: Toolchain (without parser) took 1437.27ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 74.4MB in the end (delta: -22.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 21:17:17,257 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 58.9MB in the beginning and 58.9MB in the end (delta: 19.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 21:17:17,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.79ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.4MB in the beginning and 72.3MB in the end (delta: -20.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 21:17:17,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.31ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 70.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 21:17:17,258 INFO L158 Benchmark]: Boogie Preprocessor took 38.64ms. Allocated memory is still 107.0MB. Free memory was 70.7MB in the beginning and 69.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 21:17:17,258 INFO L158 Benchmark]: RCFGBuilder took 285.43ms. Allocated memory is still 107.0MB. Free memory was 69.2MB in the beginning and 57.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 21:17:17,259 INFO L158 Benchmark]: TraceAbstraction took 508.37ms. Allocated memory is still 107.0MB. Free memory was 57.1MB in the beginning and 77.7MB in the end (delta: -20.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-07-19 21:17:17,259 INFO L158 Benchmark]: Witness Printer took 65.48ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 74.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 21:17:17,264 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 58.9MB in the beginning and 58.9MB in the end (delta: 19.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.79ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.4MB in the beginning and 72.3MB in the end (delta: -20.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.31ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 70.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.64ms. Allocated memory is still 107.0MB. Free memory was 70.7MB in the beginning and 69.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 285.43ms. Allocated memory is still 107.0MB. Free memory was 69.2MB in the beginning and 57.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 508.37ms. Allocated memory is still 107.0MB. Free memory was 57.1MB in the beginning and 77.7MB in the end (delta: -20.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Witness Printer took 65.48ms. Allocated memory is still 107.0MB. Free memory was 77.7MB in the beginning and 74.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. 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: [L681] 0 int g = 0; VAL [g=0] [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, g=0] [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [A={3:0}, D={4:0}, g=0] [L693] 0 pthread_t id; VAL [A={3:0}, D={4:0}, g=0, id={5:0}] [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - UnprovableResult [Line: 694]: 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, 78 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: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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, 45 NumberOfCodeBlocks, 45 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! [2022-07-19 21:17:17,301 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