./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_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 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 08:53:38,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:53:38,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:53:38,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:53:38,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:53:38,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:53:38,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:53:38,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:53:38,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:53:38,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:53:38,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:53:38,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:53:38,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:53:38,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:53:38,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:53:38,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:53:38,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:53:38,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:53:38,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:53:38,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:53:38,462 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:53:38,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:53:38,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:53:38,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:53:38,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:53:38,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:53:38,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:53:38,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:53:38,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:53:38,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:53:38,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:53:38,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:53:38,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:53:38,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:53:38,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:53:38,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:53:38,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:53:38,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:53:38,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:53:38,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:53:38,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:53:38,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:53:38,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 08:53:38,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:53:38,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:53:38,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:53:38,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:53:38,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:53:38,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:53:38,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:53:38,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:53:38,523 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:53:38,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:53:38,523 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:53:38,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 08:53:38,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:53:38,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:53:38,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:53:38,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:53:38,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:53:38,525 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:53:38,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:53:38,525 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:53:38,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:53:38,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:53:38,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:53:38,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:53:38,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:53:38,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:53:38,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:53:38,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:53:38,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 08:53:38,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 08:53:38,527 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:53:38,527 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:53:38,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:53:38,527 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 [2022-07-21 08:53:38,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:53:38,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:53:38,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:53:38,801 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:53:38,801 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:53:38,802 INFO L432 ainManager$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_neg.i [2022-07-21 08:53:38,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7d127f2/685c58e220924b70970bc605a014a216/FLAG20b32a6f2 [2022-07-21 08:53:39,311 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:53:39,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-07-21 08:53:39,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7d127f2/685c58e220924b70970bc605a014a216/FLAG20b32a6f2 [2022-07-21 08:53:39,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca7d127f2/685c58e220924b70970bc605a014a216 [2022-07-21 08:53:39,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:53:39,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:53:39,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:53:39,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:53:39,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:53:39,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea1eb7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39, skipping insertion in model container [2022-07-21 08:53:39,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:53:39,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:53:39,513 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_neg.i[1098,1111] [2022-07-21 08:53:39,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:53:39,664 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:53:39,675 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_neg.i[1098,1111] [2022-07-21 08:53:39,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:53:39,734 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:53:39,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39 WrapperNode [2022-07-21 08:53:39,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:53:39,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:53:39,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:53:39,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:53:39,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,785 INFO L137 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-07-21 08:53:39,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:53:39,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:53:39,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:53:39,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:53:39,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:53:39,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:53:39,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:53:39,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:53:39,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (1/1) ... [2022-07-21 08:53:39,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:53:39,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:53:39,852 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) [2022-07-21 08:53:39,872 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 [2022-07-21 08:53:39,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 08:53:39,897 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-21 08:53:39,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:53:39,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 08:53:39,897 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-21 08:53:39,897 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-21 08:53:39,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 08:53:39,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 08:53:39,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:53:39,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:53:39,899 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 08:53:40,027 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:53:40,028 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:53:40,202 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:53:40,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:53:40,216 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 08:53:40,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:53:40 BoogieIcfgContainer [2022-07-21 08:53:40,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:53:40,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:53:40,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:53:40,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:53:40,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:53:39" (1/3) ... [2022-07-21 08:53:40,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c07f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:53:40, skipping insertion in model container [2022-07-21 08:53:40,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:53:39" (2/3) ... [2022-07-21 08:53:40,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c07f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:53:40, skipping insertion in model container [2022-07-21 08:53:40,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:53:40" (3/3) ... [2022-07-21 08:53:40,225 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-07-21 08:53:40,230 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 08:53:40,237 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:53:40,237 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 08:53:40,237 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 08:53:40,279 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-21 08:53:40,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2022-07-21 08:53:40,353 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2022-07-21 08:53:40,354 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-21 08:53:40,357 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. [2022-07-21 08:53:40,358 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 161 flow [2022-07-21 08:53:40,364 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 65 transitions, 133 flow [2022-07-21 08:53:40,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:53:40,381 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@648c7ec3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7160b22e [2022-07-21 08:53:40,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 08:53:40,403 INFO L129 PetriNetUnfolder]: 1/64 cut-off events. [2022-07-21 08:53:40,404 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-21 08:53:40,404 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:53:40,405 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] [2022-07-21 08:53:40,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-21 08:53:40,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:53:40,409 INFO L85 PathProgramCache]: Analyzing trace with hash -280445477, now seen corresponding path program 1 times [2022-07-21 08:53:40,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:53:40,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894323465] [2022-07-21 08:53:40,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:53:40,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:53:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:53:40,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:53:40,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:53:40,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894323465] [2022-07-21 08:53:40,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894323465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:53:40,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:53:40,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 08:53:40,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237917424] [2022-07-21 08:53:40,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:53:40,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 08:53:40,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:53:40,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 08:53:40,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 08:53:40,708 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 78 [2022-07-21 08:53:40,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:53:40,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:53:40,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 78 [2022-07-21 08:53:40,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:53:40,788 INFO L129 PetriNetUnfolder]: 9/125 cut-off events. [2022-07-21 08:53:40,788 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-21 08:53:40,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 125 events. 9/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 300 event pairs, 0 based on Foata normal form. 2/124 useless extension candidates. Maximal degree in co-relation 125. Up to 15 conditions per place. [2022-07-21 08:53:40,790 INFO L132 encePairwiseOnDemand]: 71/78 looper letters, 13 selfloop transitions, 3 changer transitions 8/77 dead transitions. [2022-07-21 08:53:40,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 77 transitions, 203 flow [2022-07-21 08:53:40,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 08:53:40,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-21 08:53:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 408 transitions. [2022-07-21 08:53:40,801 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2022-07-21 08:53:40,801 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 408 transitions. [2022-07-21 08:53:40,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 408 transitions. [2022-07-21 08:53:40,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:53:40,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 408 transitions. [2022-07-21 08:53:40,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:53:40,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:53:40,811 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 78.0) internal successors, (546), 7 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:53:40,813 INFO L186 Difference]: Start difference. First operand has 68 places, 65 transitions, 133 flow. Second operand 6 states and 408 transitions. [2022-07-21 08:53:40,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 77 transitions, 203 flow [2022-07-21 08:53:40,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 77 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 08:53:40,818 INFO L242 Difference]: Finished difference. Result has 77 places, 65 transitions, 154 flow [2022-07-21 08:53:40,819 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=77, PETRI_TRANSITIONS=65} [2022-07-21 08:53:40,821 INFO L279 CegarLoopForPetriNet]: 68 programPoint places, 9 predicate places. [2022-07-21 08:53:40,821 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 65 transitions, 154 flow [2022-07-21 08:53:40,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:53:40,822 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:53:40,822 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, 1, 1, 1, 1] [2022-07-21 08:53:40,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 08:53:40,822 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-21 08:53:40,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:53:40,823 INFO L85 PathProgramCache]: Analyzing trace with hash 687613271, now seen corresponding path program 1 times [2022-07-21 08:53:40,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:53:40,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278844612] [2022-07-21 08:53:40,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:53:40,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:53:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:53:40,850 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 08:53:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:53:40,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 08:53:40,889 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 08:53:40,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-21 08:53:40,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-07-21 08:53:40,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 08:53:40,892 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 08:53:40,896 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-21 08:53:40,896 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 08:53:40,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:53:40 BasicIcfg [2022-07-21 08:53:40,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 08:53:40,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 08:53:40,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 08:53:40,944 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 08:53:40,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:53:40" (3/4) ... [2022-07-21 08:53:40,945 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 08:53:41,006 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 08:53:41,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 08:53:41,006 INFO L158 Benchmark]: Toolchain (without parser) took 1665.04ms. Allocated memory was 52.4MB in the beginning and 86.0MB in the end (delta: 33.6MB). Free memory was 27.9MB in the beginning and 63.5MB in the end (delta: -35.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-21 08:53:41,007 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 33.8MB in the beginning and 33.8MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:53:41,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.35ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 27.7MB in the beginning and 45.6MB in the end (delta: -17.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-07-21 08:53:41,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.14ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 43.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:53:41,007 INFO L158 Benchmark]: Boogie Preprocessor took 36.53ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 42.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:53:41,008 INFO L158 Benchmark]: RCFGBuilder took 393.94ms. Allocated memory is still 71.3MB. Free memory was 42.3MB in the beginning and 44.3MB in the end (delta: -2.0MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-07-21 08:53:41,008 INFO L158 Benchmark]: TraceAbstraction took 723.58ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 31.9MB in the end (delta: 11.8MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-07-21 08:53:41,008 INFO L158 Benchmark]: Witness Printer took 62.55ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 31.9MB in the beginning and 63.5MB in the end (delta: -31.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-07-21 08:53:41,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 33.8MB in the beginning and 33.8MB in the end (delta: 38.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.35ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 27.7MB in the beginning and 45.6MB in the end (delta: -17.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.14ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 43.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.53ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 42.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 393.94ms. Allocated memory is still 71.3MB. Free memory was 42.3MB in the beginning and 44.3MB in the end (delta: -2.0MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * TraceAbstraction took 723.58ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 31.9MB in the end (delta: 11.8MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Witness Printer took 62.55ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 31.9MB in the beginning and 63.5MB in the end (delta: -31.6MB). Peak memory consumption was 6.2MB. 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()=1, A={3:0}, B={4:0}, g=42, r=1] [L695] 0 int t; VAL [A={3:0}, B={4:0}, g=42, r=1] [L696] 0 pthread_t id; VAL [A={3:0}, B={4:0}, g=42, id={5:0}, r=1] [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=1] [L700] COND TRUE 0 \read(r) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, r=1] [L701] 0 g = 17 VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={5:0}, r=1] [L705] 0 t = g VAL [A={3:0}, arg={0:0}, B={4:0}, g=17, id={5:0}, r=1, t=17] [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=17] [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=17] - 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: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.1s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-07-21 08:53:41,050 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