./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 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_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-?-791161d [2022-07-22 21:36:03,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 21:36:03,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 21:36:03,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 21:36:03,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 21:36:03,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 21:36:03,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 21:36:03,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 21:36:03,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 21:36:03,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 21:36:03,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 21:36:03,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 21:36:03,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 21:36:03,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 21:36:03,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 21:36:03,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 21:36:03,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 21:36:03,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 21:36:03,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 21:36:03,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 21:36:03,680 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 21:36:03,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 21:36:03,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 21:36:03,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 21:36:03,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 21:36:03,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 21:36:03,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 21:36:03,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 21:36:03,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 21:36:03,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 21:36:03,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 21:36:03,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 21:36:03,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 21:36:03,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 21:36:03,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 21:36:03,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 21:36:03,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 21:36:03,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 21:36:03,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 21:36:03,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 21:36:03,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 21:36:03,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 21:36:03,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 21:36:03,719 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 21:36:03,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 21:36:03,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 21:36:03,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 21:36:03,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 21:36:03,726 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 21:36:03,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 21:36:03,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 21:36:03,727 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 21:36:03,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 21:36:03,728 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 21:36:03,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 21:36:03,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 21:36:03,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 21:36:03,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 21:36:03,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 21:36:03,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 21:36:03,729 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 21:36:03,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 21:36:03,729 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 21:36:03,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 21:36:03,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 21:36:03,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 21:36:03,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 21:36:03,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:36:03,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 21:36:03,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 21:36:03,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 21:36:03,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 21:36:03,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 21:36:03,731 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 21:36:03,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 21:36:03,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 21:36:03,732 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36105814f7d14243ca8b55776979fcada1717aa30ae4c259b302358b1f244a48 [2022-07-22 21:36:03,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 21:36:03,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 21:36:03,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 21:36:03,948 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 21:36:03,949 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 21:36:03,950 INFO L432 ainManager$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 [2022-07-22 21:36:03,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ff1c8f29/0bf53aebf9374cdf949fadaa322e00ed/FLAG897304c24 [2022-07-22 21:36:04,432 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 21:36:04,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-07-22 21:36:04,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ff1c8f29/0bf53aebf9374cdf949fadaa322e00ed/FLAG897304c24 [2022-07-22 21:36:04,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ff1c8f29/0bf53aebf9374cdf949fadaa322e00ed [2022-07-22 21:36:04,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 21:36:04,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 21:36:04,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 21:36:04,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 21:36:04,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 21:36:04,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d128280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04, skipping insertion in model container [2022-07-22 21:36:04,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 21:36:04,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 21:36:04,639 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] [2022-07-22 21:36:04,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:36:04,767 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 21:36:04,778 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] [2022-07-22 21:36:04,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:36:04,836 INFO L208 MainTranslator]: Completed translation [2022-07-22 21:36:04,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04 WrapperNode [2022-07-22 21:36:04,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 21:36:04,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 21:36:04,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 21:36:04,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 21:36:04,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,889 INFO L137 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-07-22 21:36:04,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 21:36:04,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 21:36:04,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 21:36:04,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 21:36:04,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 21:36:04,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 21:36:04,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 21:36:04,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 21:36:04,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (1/1) ... [2022-07-22 21:36:04,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:36:04,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:36:04,954 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 21:36:04,965 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 21:36:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 21:36:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-22 21:36:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 21:36:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 21:36:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-22 21:36:04,988 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-22 21:36:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 21:36:04,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 21:36:04,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 21:36:04,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 21:36:04,990 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 21:36:05,135 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 21:36:05,137 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 21:36:05,252 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 21:36:05,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 21:36:05,258 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 21:36:05,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:36:05 BoogieIcfgContainer [2022-07-22 21:36:05,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 21:36:05,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 21:36:05,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 21:36:05,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 21:36:05,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:36:04" (1/3) ... [2022-07-22 21:36:05,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f31112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:36:05, skipping insertion in model container [2022-07-22 21:36:05,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:36:04" (2/3) ... [2022-07-22 21:36:05,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f31112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:36:05, skipping insertion in model container [2022-07-22 21:36:05,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:36:05" (3/3) ... [2022-07-22 21:36:05,273 INFO L111 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_neg.i [2022-07-22 21:36:05,277 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 21:36:05,283 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 21:36:05,284 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 21:36:05,284 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 21:36:05,308 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-22 21:36:05,333 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2022-07-22 21:36:05,357 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2022-07-22 21:36:05,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:36:05,360 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 21:36:05,360 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 78 transitions, 161 flow [2022-07-22 21:36:05,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 65 transitions, 133 flow [2022-07-22 21:36:05,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:36:05,375 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@6bc2ac87, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@831906f [2022-07-22 21:36:05,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-22 21:36:05,388 INFO L129 PetriNetUnfolder]: 1/64 cut-off events. [2022-07-22 21:36:05,388 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:36:05,388 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:36:05,389 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 21:36:05,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-22 21:36:05,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:36:05,393 INFO L85 PathProgramCache]: Analyzing trace with hash -280445477, now seen corresponding path program 1 times [2022-07-22 21:36:05,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:36:05,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303354035] [2022-07-22 21:36:05,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:36:05,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:36:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:36:05,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 21:36:05,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:36:05,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303354035] [2022-07-22 21:36:05,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303354035] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:36:05,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:36:05,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:36:05,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083354264] [2022-07-22 21:36:05,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:36:05,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:36:05,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:36:05,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:36:05,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:36:05,753 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 78 [2022-07-22 21:36:05,758 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) [2022-07-22 21:36:05,759 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:36:05,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 78 [2022-07-22 21:36:05,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:36:05,892 INFO L129 PetriNetUnfolder]: 9/125 cut-off events. [2022-07-22 21:36:05,892 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-22 21:36:05,893 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. [2022-07-22 21:36:05,895 INFO L132 encePairwiseOnDemand]: 71/78 looper letters, 13 selfloop transitions, 3 changer transitions 8/77 dead transitions. [2022-07-22 21:36:05,895 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 77 transitions, 203 flow [2022-07-22 21:36:05,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 21:36:05,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-22 21:36:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 408 transitions. [2022-07-22 21:36:05,932 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2022-07-22 21:36:05,933 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 408 transitions. [2022-07-22 21:36:05,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 408 transitions. [2022-07-22 21:36:05,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:36:05,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 408 transitions. [2022-07-22 21:36:05,942 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) [2022-07-22 21:36:05,949 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) [2022-07-22 21:36:05,950 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) [2022-07-22 21:36:05,952 INFO L186 Difference]: Start difference. First operand has 68 places, 65 transitions, 133 flow. Second operand 6 states and 408 transitions. [2022-07-22 21:36:05,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 77 transitions, 203 flow [2022-07-22 21:36:05,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 77 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-22 21:36:05,961 INFO L242 Difference]: Finished difference. Result has 77 places, 65 transitions, 154 flow [2022-07-22 21:36:05,962 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} [2022-07-22 21:36:05,967 INFO L279 CegarLoopForPetriNet]: 68 programPoint places, 9 predicate places. [2022-07-22 21:36:05,967 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 65 transitions, 154 flow [2022-07-22 21:36:05,968 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) [2022-07-22 21:36:05,968 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:36:05,968 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] [2022-07-22 21:36:05,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 21:36:05,969 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-22 21:36:05,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:36:05,970 INFO L85 PathProgramCache]: Analyzing trace with hash 687613271, now seen corresponding path program 1 times [2022-07-22 21:36:05,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:36:05,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421073898] [2022-07-22 21:36:05,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:36:05,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:36:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:36:06,016 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:36:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:36:06,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:36:06,059 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:36:06,060 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-07-22 21:36:06,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-07-22 21:36:06,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 21:36:06,063 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 21:36:06,068 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-22 21:36:06,069 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 21:36:06,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 09:36:06 BasicIcfg [2022-07-22 21:36:06,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 21:36:06,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 21:36:06,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 21:36:06,118 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 21:36:06,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:36:05" (3/4) ... [2022-07-22 21:36:06,120 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 21:36:06,165 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 21:36:06,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 21:36:06,167 INFO L158 Benchmark]: Toolchain (without parser) took 1708.77ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 94.2MB in the beginning and 80.5MB in the end (delta: 13.6MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2022-07-22 21:36:06,172 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 21:36:06,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.45ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 93.8MB in the beginning and 113.9MB in the end (delta: -20.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 21:36:06,174 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.62ms. Allocated memory is still 148.9MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 21:36:06,174 INFO L158 Benchmark]: Boogie Preprocessor took 37.73ms. Allocated memory is still 148.9MB. Free memory was 111.8MB in the beginning and 110.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 21:36:06,175 INFO L158 Benchmark]: RCFGBuilder took 331.75ms. Allocated memory is still 148.9MB. Free memory was 110.6MB in the beginning and 98.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 21:36:06,175 INFO L158 Benchmark]: TraceAbstraction took 855.08ms. Allocated memory is still 148.9MB. Free memory was 98.0MB in the beginning and 84.7MB in the end (delta: 13.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2022-07-22 21:36:06,175 INFO L158 Benchmark]: Witness Printer took 48.52ms. Allocated memory is still 148.9MB. Free memory was 84.7MB in the beginning and 80.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 21:36:06,177 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 121.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.45ms. Allocated memory was 121.6MB in the beginning and 148.9MB in the end (delta: 27.3MB). Free memory was 93.8MB in the beginning and 113.9MB in the end (delta: -20.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.62ms. Allocated memory is still 148.9MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.73ms. Allocated memory is still 148.9MB. Free memory was 111.8MB in the beginning and 110.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 331.75ms. Allocated memory is still 148.9MB. Free memory was 110.6MB in the beginning and 98.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 855.08ms. Allocated memory is still 148.9MB. Free memory was 98.0MB in the beginning and 84.7MB in the end (delta: 13.3MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Witness Printer took 48.52ms. Allocated memory is still 148.9MB. Free memory was 84.7MB in the beginning and 80.5MB in the end (delta: 4.2MB). 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()=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: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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, 0.1s 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, 0.2s 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! [2022-07-22 21:36:06,212 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