./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a91542c733a27a18dff97acca49ae580b7929842603ed8a2c1cdbb309e164d67 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 21:31:45,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 21:31:45,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 21:31:45,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 21:31:45,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 21:31:45,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 21:31:45,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 21:31:45,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 21:31:45,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 21:31:45,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 21:31:45,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 21:31:45,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 21:31:45,530 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 21:31:45,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 21:31:45,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 21:31:45,534 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 21:31:45,535 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 21:31:45,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 21:31:45,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 21:31:45,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 21:31:45,543 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 21:31:45,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 21:31:45,545 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 21:31:45,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 21:31:45,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 21:31:45,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 21:31:45,552 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 21:31:45,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 21:31:45,554 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 21:31:45,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 21:31:45,555 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 21:31:45,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 21:31:45,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 21:31:45,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 21:31:45,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 21:31:45,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 21:31:45,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 21:31:45,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 21:31:45,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 21:31:45,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 21:31:45,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 21:31:45,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 21:31:45,563 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 21:31:45,586 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 21:31:45,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 21:31:45,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 21:31:45,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 21:31:45,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 21:31:45,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 21:31:45,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 21:31:45,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 21:31:45,589 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 21:31:45,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 21:31:45,590 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 21:31:45,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 21:31:45,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 21:31:45,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 21:31:45,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 21:31:45,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 21:31:45,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 21:31:45,591 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 21:31:45,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 21:31:45,591 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 21:31:45,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 21:31:45,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 21:31:45,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 21:31:45,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 21:31:45,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:31:45,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 21:31:45,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 21:31:45,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 21:31:45,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 21:31:45,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 21:31:45,593 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 21:31:45,594 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 21:31:45,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 21:31:45,594 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a91542c733a27a18dff97acca49ae580b7929842603ed8a2c1cdbb309e164d67 [2022-07-22 21:31:45,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 21:31:45,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 21:31:45,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 21:31:45,766 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 21:31:45,766 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 21:31:45,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2022-07-22 21:31:45,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd4a02fa/f44ac3bfc6184f1e9bac93f4284e1fd1/FLAGc58c87efb [2022-07-22 21:31:46,176 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 21:31:46,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2022-07-22 21:31:46,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd4a02fa/f44ac3bfc6184f1e9bac93f4284e1fd1/FLAGc58c87efb [2022-07-22 21:31:46,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfd4a02fa/f44ac3bfc6184f1e9bac93f4284e1fd1 [2022-07-22 21:31:46,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 21:31:46,589 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 21:31:46,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 21:31:46,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 21:31:46,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 21:31:46,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:46,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642ad3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46, skipping insertion in model container [2022-07-22 21:31:46,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:46,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 21:31:46,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 21:31:46,776 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2022-07-22 21:31:46,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:31:46,934 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 21:31:46,944 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2022-07-22 21:31:46,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 21:31:46,996 INFO L208 MainTranslator]: Completed translation [2022-07-22 21:31:46,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46 WrapperNode [2022-07-22 21:31:46,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 21:31:46,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 21:31:46,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 21:31:46,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 21:31:47,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:47,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:47,042 INFO L137 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-07-22 21:31:47,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 21:31:47,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 21:31:47,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 21:31:47,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 21:31:47,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:47,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:47,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:47,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:47,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:47,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:47,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:47,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 21:31:47,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 21:31:47,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 21:31:47,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 21:31:47,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (1/1) ... [2022-07-22 21:31:47,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 21:31:47,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 21:31:47,099 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 21:31:47,104 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 21:31:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 21:31:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 21:31:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-22 21:31:47,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 21:31:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 21:31:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-22 21:31:47,136 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-22 21:31:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 21:31:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 21:31:47,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 21:31:47,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 21:31:47,137 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 21:31:47,225 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 21:31:47,226 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 21:31:47,332 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 21:31:47,337 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 21:31:47,337 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 21:31:47,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:31:47 BoogieIcfgContainer [2022-07-22 21:31:47,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 21:31:47,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 21:31:47,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 21:31:47,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 21:31:47,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 09:31:46" (1/3) ... [2022-07-22 21:31:47,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4934db33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:31:47, skipping insertion in model container [2022-07-22 21:31:47,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 09:31:46" (2/3) ... [2022-07-22 21:31:47,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4934db33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 09:31:47, skipping insertion in model container [2022-07-22 21:31:47,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:31:47" (3/3) ... [2022-07-22 21:31:47,356 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2022-07-22 21:31:47,360 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-22 21:31:47,372 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 21:31:47,373 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 21:31:47,373 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-22 21:31:47,423 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-22 21:31:47,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 136 flow [2022-07-22 21:31:47,478 INFO L129 PetriNetUnfolder]: 2/63 cut-off events. [2022-07-22 21:31:47,479 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-22 21:31:47,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 2/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-07-22 21:31:47,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 64 transitions, 136 flow [2022-07-22 21:31:47,483 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 47 transitions, 97 flow [2022-07-22 21:31:47,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 21:31:47,495 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@15dbfdb, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@52f23d6 [2022-07-22 21:31:47,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-22 21:31:47,504 INFO L129 PetriNetUnfolder]: 1/46 cut-off events. [2022-07-22 21:31:47,504 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-22 21:31:47,504 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:31:47,505 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] [2022-07-22 21:31:47,505 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 21:31:47,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:31:47,509 INFO L85 PathProgramCache]: Analyzing trace with hash -392670942, now seen corresponding path program 1 times [2022-07-22 21:31:47,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:31:47,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358702950] [2022-07-22 21:31:47,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:31:47,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:31:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 21:31:47,758 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 21:31:47,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 21:31:47,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358702950] [2022-07-22 21:31:47,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358702950] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 21:31:47,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 21:31:47,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 21:31:47,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781455] [2022-07-22 21:31:47,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 21:31:47,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 21:31:47,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 21:31:47,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 21:31:47,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 21:31:47,797 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 64 [2022-07-22 21:31:47,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 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 21:31:47,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-22 21:31:47,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 64 [2022-07-22 21:31:47,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-22 21:31:47,856 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2022-07-22 21:31:47,857 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-22 21:31:47,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 52 events. 0/52 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-07-22 21:31:47,858 INFO L132 encePairwiseOnDemand]: 58/64 looper letters, 8 selfloop transitions, 2 changer transitions 5/51 dead transitions. [2022-07-22 21:31:47,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 51 transitions, 135 flow [2022-07-22 21:31:47,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 21:31:47,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-22 21:31:47,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 304 transitions. [2022-07-22 21:31:47,869 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2022-07-22 21:31:47,869 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 304 transitions. [2022-07-22 21:31:47,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 304 transitions. [2022-07-22 21:31:47,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 21:31:47,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 304 transitions. [2022-07-22 21:31:47,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 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 21:31:47,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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 21:31:47,880 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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 21:31:47,881 INFO L186 Difference]: Start difference. First operand has 50 places, 47 transitions, 97 flow. Second operand 6 states and 304 transitions. [2022-07-22 21:31:47,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 51 transitions, 135 flow [2022-07-22 21:31:47,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 51 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-22 21:31:47,886 INFO L242 Difference]: Finished difference. Result has 58 places, 46 transitions, 108 flow [2022-07-22 21:31:47,887 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=108, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2022-07-22 21:31:47,889 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 8 predicate places. [2022-07-22 21:31:47,889 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 108 flow [2022-07-22 21:31:47,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 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 21:31:47,890 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-22 21:31:47,890 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] [2022-07-22 21:31:47,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 21:31:47,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 21:31:47,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 21:31:47,891 INFO L85 PathProgramCache]: Analyzing trace with hash -140340200, now seen corresponding path program 1 times [2022-07-22 21:31:47,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 21:31:47,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033487171] [2022-07-22 21:31:47,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 21:31:47,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 21:31:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:31:47,912 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 21:31:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 21:31:47,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 21:31:47,939 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 21:31:47,940 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-07-22 21:31:47,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-07-22 21:31:47,942 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-07-22 21:31:47,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 21:31:47,942 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 21:31:47,947 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-22 21:31:47,947 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 21:31:47,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 09:31:47 BasicIcfg [2022-07-22 21:31:47,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 21:31:47,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 21:31:47,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 21:31:47,971 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 21:31:47,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 09:31:47" (3/4) ... [2022-07-22 21:31:47,979 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 21:31:48,009 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 21:31:48,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 21:31:48,011 INFO L158 Benchmark]: Toolchain (without parser) took 1420.91ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 77.7MB in the beginning and 115.4MB in the end (delta: -37.7MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2022-07-22 21:31:48,011 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory was 64.4MB in the beginning and 64.3MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 21:31:48,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.43ms. Allocated memory is still 109.1MB. Free memory was 77.7MB in the beginning and 73.6MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 21:31:48,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.78ms. Allocated memory is still 109.1MB. Free memory was 73.6MB in the beginning and 71.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 21:31:48,012 INFO L158 Benchmark]: Boogie Preprocessor took 32.67ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 70.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 21:31:48,013 INFO L158 Benchmark]: RCFGBuilder took 262.19ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 59.2MB in the end (delta: 10.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-22 21:31:48,014 INFO L158 Benchmark]: TraceAbstraction took 630.33ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 58.6MB in the beginning and 78.0MB in the end (delta: -19.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2022-07-22 21:31:48,015 INFO L158 Benchmark]: Witness Printer took 39.45ms. Allocated memory is still 144.7MB. Free memory was 78.0MB in the beginning and 115.4MB in the end (delta: -37.4MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2022-07-22 21:31:48,017 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 109.1MB. Free memory was 64.4MB in the beginning and 64.3MB in the end (delta: 45.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.43ms. Allocated memory is still 109.1MB. Free memory was 77.7MB in the beginning and 73.6MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.78ms. Allocated memory is still 109.1MB. Free memory was 73.6MB in the beginning and 71.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.67ms. Allocated memory is still 109.1MB. Free memory was 71.4MB in the beginning and 70.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 262.19ms. Allocated memory is still 109.1MB. Free memory was 70.1MB in the beginning and 59.2MB in the end (delta: 10.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 630.33ms. Allocated memory was 109.1MB in the beginning and 144.7MB in the end (delta: 35.7MB). Free memory was 58.6MB in the beginning and 78.0MB in the end (delta: -19.4MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Witness Printer took 39.45ms. Allocated memory is still 144.7MB. Free memory was 78.0MB in the beginning and 115.4MB in the end (delta: -37.4MB). Peak memory consumption was 2.4MB. 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 glob1 = 0; VAL [glob1=0] [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L697] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=42, arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L687] COND TRUE 1 t == 42 VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L688] 1 glob1 = 1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 t = glob1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 87 locations, 3 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 22 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=108occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 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 21:31:48,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE