./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 06:08:32,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 06:08:32,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 06:08:32,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 06:08:32,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 06:08:32,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 06:08:32,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 06:08:32,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 06:08:32,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 06:08:32,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 06:08:32,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 06:08:32,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 06:08:32,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 06:08:32,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 06:08:32,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 06:08:32,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 06:08:32,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 06:08:32,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 06:08:32,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 06:08:32,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 06:08:32,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 06:08:32,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 06:08:32,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 06:08:32,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 06:08:32,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 06:08:32,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 06:08:32,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 06:08:32,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 06:08:32,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 06:08:32,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 06:08:32,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 06:08:32,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 06:08:32,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 06:08:32,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 06:08:32,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 06:08:32,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 06:08:32,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 06:08:32,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 06:08:32,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 06:08:32,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 06:08:32,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 06:08:32,472 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 06:08:32,518 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 06:08:32,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 06:08:32,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 06:08:32,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 06:08:32,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 06:08:32,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 06:08:32,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 06:08:32,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 06:08:32,522 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 06:08:32,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 06:08:32,523 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 06:08:32,523 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 06:08:32,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 06:08:32,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 06:08:32,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 06:08:32,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 06:08:32,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 06:08:32,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 06:08:32,524 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 06:08:32,525 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 06:08:32,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 06:08:32,525 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 06:08:32,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 06:08:32,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 06:08:32,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 06:08:32,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 06:08:32,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:08:32,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 06:08:32,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 06:08:32,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 06:08:32,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 06:08:32,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 06:08:32,527 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 06:08:32,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 06:08:32,528 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 06:08:32,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 06:08:32,528 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 06:08:32,528 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 06:08:32,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 06:08:32,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 06:08:32,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 06:08:32,910 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 06:08:32,910 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 06:08:32,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i [2023-09-01 06:08:34,125 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 06:08:34,440 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 06:08:34,440 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i [2023-09-01 06:08:34,458 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a49e07a0/b4e4cfaaf19c42c5a393455b7c8fae28/FLAG2a1440993 [2023-09-01 06:08:34,496 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a49e07a0/b4e4cfaaf19c42c5a393455b7c8fae28 [2023-09-01 06:08:34,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 06:08:34,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 06:08:34,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 06:08:34,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 06:08:34,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 06:08:34,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:08:34" (1/1) ... [2023-09-01 06:08:34,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ad2fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:34, skipping insertion in model container [2023-09-01 06:08:34,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 06:08:34" (1/1) ... [2023-09-01 06:08:34,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 06:08:34,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 06:08:35,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:08:35,023 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 06:08:35,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 06:08:35,146 INFO L208 MainTranslator]: Completed translation [2023-09-01 06:08:35,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35 WrapperNode [2023-09-01 06:08:35,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 06:08:35,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 06:08:35,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 06:08:35,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 06:08:35,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,222 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-09-01 06:08:35,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 06:08:35,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 06:08:35,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 06:08:35,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 06:08:35,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,259 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 06:08:35,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 06:08:35,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 06:08:35,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 06:08:35,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (1/1) ... [2023-09-01 06:08:35,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 06:08:35,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 06:08:35,307 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) [2023-09-01 06:08:35,330 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 [2023-09-01 06:08:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 06:08:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 06:08:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 06:08:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 06:08:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 06:08:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 06:08:35,347 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 06:08:35,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 06:08:35,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 06:08:35,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 06:08:35,348 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 06:08:35,522 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 06:08:35,535 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 06:08:35,721 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 06:08:35,726 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 06:08:35,727 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 06:08:35,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:35 BoogieIcfgContainer [2023-09-01 06:08:35,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 06:08:35,730 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 06:08:35,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 06:08:35,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 06:08:35,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 06:08:34" (1/3) ... [2023-09-01 06:08:35,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1191b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:08:35, skipping insertion in model container [2023-09-01 06:08:35,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 06:08:35" (2/3) ... [2023-09-01 06:08:35,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1191b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 06:08:35, skipping insertion in model container [2023-09-01 06:08:35,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:35" (3/3) ... [2023-09-01 06:08:35,736 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17a-ps_add1_nr.i [2023-09-01 06:08:35,744 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 06:08:35,752 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 06:08:35,752 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-09-01 06:08:35,753 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 06:08:35,816 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 06:08:35,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 80 transitions, 165 flow [2023-09-01 06:08:35,887 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2023-09-01 06:08:35,887 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:35,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 3/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-09-01 06:08:35,891 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 80 transitions, 165 flow [2023-09-01 06:08:35,895 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 79 transitions, 161 flow [2023-09-01 06:08:35,899 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 06:08:35,907 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 79 transitions, 161 flow [2023-09-01 06:08:35,910 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 79 transitions, 161 flow [2023-09-01 06:08:35,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 79 transitions, 161 flow [2023-09-01 06:08:35,928 INFO L130 PetriNetUnfolder]: 3/79 cut-off events. [2023-09-01 06:08:35,928 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:35,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 3/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-09-01 06:08:35,930 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-09-01 06:08:38,303 INFO L134 LiptonReduction]: Checked pairs total: 2189 [2023-09-01 06:08:38,303 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-09-01 06:08:38,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 06:08:38,325 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@201c7eb0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 06:08:38,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-09-01 06:08:38,328 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-09-01 06:08:38,329 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:38,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:38,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 06:08:38,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:38,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:38,334 INFO L85 PathProgramCache]: Analyzing trace with hash 299139, now seen corresponding path program 1 times [2023-09-01 06:08:38,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:38,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416288247] [2023-09-01 06:08:38,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:38,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 06:08:38,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 06:08:38,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 06:08:38,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416288247] [2023-09-01 06:08:38,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416288247] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 06:08:38,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 06:08:38,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 06:08:38,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008908619] [2023-09-01 06:08:38,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 06:08:38,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 06:08:38,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 06:08:38,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 06:08:38,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 06:08:38,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 170 [2023-09-01 06:08:38,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2023-09-01 06:08:38,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 06:08:38,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 170 [2023-09-01 06:08:38,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 06:08:38,693 INFO L130 PetriNetUnfolder]: 61/132 cut-off events. [2023-09-01 06:08:38,693 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 06:08:38,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 132 events. 61/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 503 event pairs, 54 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 260. Up to 132 conditions per place. [2023-09-01 06:08:38,701 INFO L137 encePairwiseOnDemand]: 166/170 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-09-01 06:08:38,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 75 flow [2023-09-01 06:08:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 06:08:38,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 06:08:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2023-09-01 06:08:38,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45294117647058824 [2023-09-01 06:08:38,714 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2023-09-01 06:08:38,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2023-09-01 06:08:38,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 06:08:38,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2023-09-01 06:08:38,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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) [2023-09-01 06:08:38,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2023-09-01 06:08:38,724 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 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) [2023-09-01 06:08:38,725 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 45 flow. Second operand 3 states and 231 transitions. [2023-09-01 06:08:38,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 75 flow [2023-09-01 06:08:38,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 06:08:38,728 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 40 flow [2023-09-01 06:08:38,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-09-01 06:08:38,733 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2023-09-01 06:08:38,733 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 40 flow [2023-09-01 06:08:38,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2023-09-01 06:08:38,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 06:08:38,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 06:08:38,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 06:08:38,734 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-09-01 06:08:38,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 06:08:38,735 INFO L85 PathProgramCache]: Analyzing trace with hash 299141, now seen corresponding path program 1 times [2023-09-01 06:08:38,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 06:08:38,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971752623] [2023-09-01 06:08:38,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 06:08:38,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 06:08:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 06:08:38,759 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 06:08:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 06:08:38,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 06:08:38,812 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 06:08:38,813 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-09-01 06:08:38,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-09-01 06:08:38,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-09-01 06:08:38,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-09-01 06:08:38,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-09-01 06:08:38,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-09-01 06:08:38,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-09-01 06:08:38,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-09-01 06:08:38,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-09-01 06:08:38,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-09-01 06:08:38,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-09-01 06:08:38,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-09-01 06:08:38,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-09-01 06:08:38,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 06:08:38,818 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-09-01 06:08:38,824 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 06:08:38,824 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 06:08:38,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 06:08:38 BasicIcfg [2023-09-01 06:08:38,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 06:08:38,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 06:08:38,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 06:08:38,841 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 06:08:38,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 06:08:35" (3/4) ... [2023-09-01 06:08:38,843 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-09-01 06:08:38,871 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 06:08:38,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 06:08:38,872 INFO L158 Benchmark]: Toolchain (without parser) took 4372.45ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 42.0MB in the beginning and 53.7MB in the end (delta: -11.7MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2023-09-01 06:08:38,873 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 50.3MB. Free memory was 28.6MB in the beginning and 28.6MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:08:38,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 645.41ms. Allocated memory is still 60.8MB. Free memory was 41.9MB in the beginning and 27.6MB in the end (delta: 14.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-09-01 06:08:38,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.81ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 27.4MB in the beginning and 52.6MB in the end (delta: -25.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:08:38,874 INFO L158 Benchmark]: Boogie Preprocessor took 47.25ms. Allocated memory is still 73.4MB. Free memory was 52.6MB in the beginning and 51.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:08:38,874 INFO L158 Benchmark]: RCFGBuilder took 456.87ms. Allocated memory is still 73.4MB. Free memory was 51.2MB in the beginning and 37.9MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-09-01 06:08:38,875 INFO L158 Benchmark]: TraceAbstraction took 3109.49ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 37.3MB in the beginning and 55.1MB in the end (delta: -17.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 06:08:38,875 INFO L158 Benchmark]: Witness Printer took 31.39ms. Allocated memory is still 88.1MB. Free memory was 55.1MB in the beginning and 53.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 06:08:38,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 50.3MB. Free memory was 28.6MB in the beginning and 28.6MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 645.41ms. Allocated memory is still 60.8MB. Free memory was 41.9MB in the beginning and 27.6MB in the end (delta: 14.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.81ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 27.4MB in the beginning and 52.6MB in the end (delta: -25.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.25ms. Allocated memory is still 73.4MB. Free memory was 52.6MB in the beginning and 51.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 456.87ms. Allocated memory is still 73.4MB. Free memory was 51.2MB in the beginning and 37.9MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3109.49ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 37.3MB in the beginning and 55.1MB in the end (delta: -17.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 31.39ms. Allocated memory is still 88.1MB. Free memory was 55.1MB in the beginning and 53.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 80 PlacesBefore, 24 PlacesAfterwards, 79 TransitionsBefore, 21 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 90 TotalNumberOfCompositions, 2189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1281, independent: 1191, independent conditional: 0, independent unconditional: 1191, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 668, independent: 643, independent conditional: 0, independent unconditional: 643, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1281, independent: 548, independent conditional: 0, independent unconditional: 548, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 944]: integer overflow possible integer overflow possible We found a FailurePath: [L928] 0 int glob; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L937] 0 int i = __VERIFIER_nondet_int(); [L938] 0 pthread_t id; [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=2147483647, id={2:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L941] COND TRUE 0 \read(i) [L944] 0 i++ VAL [arg={0:0}, glob=0, i++=2147483647, i=2147483647, id={2:0}, m={1:0}] - UnprovableResult [Line: 944]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 939]: 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. - UnprovableResult [Line: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 93 locations, 13 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: 3.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 0 mSDtfsCounter, 41 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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! [2023-09-01 06:08:38,896 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(OVERFLOW)