./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 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/04-mutex_14-funarg_rc.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 f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:02:34,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:02:34,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:02:34,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:02:34,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:02:34,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:02:34,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:02:34,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:02:34,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:02:34,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:02:34,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:02:34,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:02:34,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:02:34,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:02:34,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:02:34,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:02:34,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:02:34,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:02:34,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:02:34,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:02:34,335 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:02:34,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:02:34,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:02:34,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:02:34,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:02:34,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:02:34,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:02:34,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:02:34,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:02:34,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:02:34,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:02:34,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:02:34,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:02:34,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:02:34,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:02:34,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:02:34,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:02:34,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:02:34,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:02:34,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:02:34,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:02:34,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:02:34,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 14:02:34,370 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:02:34,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:02:34,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:02:34,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:02:34,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:02:34,377 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:02:34,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:02:34,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:02:34,377 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:02:34,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:02:34,378 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 14:02:34,378 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:02:34,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:02:34,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 14:02:34,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:02:34,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:02:34,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:02:34,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:02:34,379 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:02:34,379 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 14:02:34,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:02:34,380 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:02:34,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:02:34,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:02:34,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:02:34,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:02:34,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:02:34,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:02:34,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:02:34,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:02:34,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:02:34,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:02:34,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:02:34,382 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f642c67113760bee92d5df6113328ab6bc786120281f498909848eae502de3ab [2022-07-14 14:02:34,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:02:34,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:02:34,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:02:34,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:02:34,610 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:02:34,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i [2022-07-14 14:02:34,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c9e2134/9be3d6a3176647aaa220fe1087827f41/FLAG99a7679b0 [2022-07-14 14:02:35,065 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:02:35,066 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_14-funarg_rc.i [2022-07-14 14:02:35,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c9e2134/9be3d6a3176647aaa220fe1087827f41/FLAG99a7679b0 [2022-07-14 14:02:35,086 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c9e2134/9be3d6a3176647aaa220fe1087827f41 [2022-07-14 14:02:35,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:02:35,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:02:35,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:02:35,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:02:35,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:02:35,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1f23d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35, skipping insertion in model container [2022-07-14 14:02:35,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:02:35,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:02:35,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:02:35,361 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:02:35,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:02:35,443 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:02:35,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35 WrapperNode [2022-07-14 14:02:35,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:02:35,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:02:35,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:02:35,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:02:35,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,474 INFO L137 Inliner]: procedures = 263, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-07-14 14:02:35,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:02:35,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:02:35,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:02:35,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:02:35,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:02:35,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:02:35,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:02:35,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:02:35,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (1/1) ... [2022-07-14 14:02:35,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:02:35,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:02:35,516 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) [2022-07-14 14:02:35,522 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 [2022-07-14 14:02:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 14:02:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:02:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:02:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:02:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-14 14:02:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:02:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-14 14:02:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-14 14:02:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:02:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:02:35,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:02:35,543 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-14 14:02:35,611 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:02:35,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:02:35,785 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:02:35,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:02:35,792 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 14:02:35,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:02:35 BoogieIcfgContainer [2022-07-14 14:02:35,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:02:35,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:02:35,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:02:35,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:02:35,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:02:35" (1/3) ... [2022-07-14 14:02:35,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455f2540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:02:35, skipping insertion in model container [2022-07-14 14:02:35,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:02:35" (2/3) ... [2022-07-14 14:02:35,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455f2540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:02:35, skipping insertion in model container [2022-07-14 14:02:35,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:02:35" (3/3) ... [2022-07-14 14:02:35,800 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_14-funarg_rc.i [2022-07-14 14:02:35,804 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-14 14:02:35,810 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:02:35,810 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-14 14:02:35,810 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-14 14:02:35,855 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-14 14:02:35,882 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-14 14:02:35,891 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 80 transitions, 168 flow [2022-07-14 14:02:35,897 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 80 transitions, 168 flow [2022-07-14 14:02:35,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 80 transitions, 168 flow [2022-07-14 14:02:35,941 INFO L129 PetriNetUnfolder]: 0/79 cut-off events. [2022-07-14 14:02:35,941 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-14 14:02:35,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 0/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-07-14 14:02:35,944 INFO L116 LiptonReduction]: Number of co-enabled transitions 528 [2022-07-14 14:02:38,338 INFO L131 LiptonReduction]: Checked pairs total: 1026 [2022-07-14 14:02:38,338 INFO L133 LiptonReduction]: Total number of compositions: 72 [2022-07-14 14:02:38,344 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 17 transitions, 42 flow [2022-07-14 14:02:38,353 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 47 states have internal predecessors, (80), 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) [2022-07-14 14:02:38,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:02:38,367 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=FINITE_AUTOMATA, 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@1fd91b98, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7eb51a4e [2022-07-14 14:02:38,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-14 14:02:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 47 states have internal predecessors, (80), 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) [2022-07-14 14:02:38,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:02:38,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:38,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:02:38,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-14 14:02:38,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:38,381 INFO L85 PathProgramCache]: Analyzing trace with hash 271784, now seen corresponding path program 1 times [2022-07-14 14:02:38,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:38,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889390529] [2022-07-14 14:02:38,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:38,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:02:38,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:38,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889390529] [2022-07-14 14:02:38,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889390529] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:38,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:38,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:02:38,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001547348] [2022-07-14 14:02:38,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:38,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:02:38,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:38,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:02:38,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:38,557 INFO L87 Difference]: Start difference. First operand has 48 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 47 states have internal predecessors, (80), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-14 14:02:38,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:38,581 INFO L93 Difference]: Finished difference Result 39 states and 60 transitions. [2022-07-14 14:02:38,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:02:38,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-07-14 14:02:38,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:38,587 INFO L225 Difference]: With dead ends: 39 [2022-07-14 14:02:38,587 INFO L226 Difference]: Without dead ends: 35 [2022-07-14 14:02:38,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:38,590 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:38,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:38,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-07-14 14:02:38,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2022-07-14 14:02:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 32 states have internal predecessors, (51), 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) [2022-07-14 14:02:38,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2022-07-14 14:02:38,610 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 3 [2022-07-14 14:02:38,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:38,610 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2022-07-14 14:02:38,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-14 14:02:38,611 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2022-07-14 14:02:38,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-14 14:02:38,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:38,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-14 14:02:38,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:02:38,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-14 14:02:38,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:38,612 INFO L85 PathProgramCache]: Analyzing trace with hash 271785, now seen corresponding path program 1 times [2022-07-14 14:02:38,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:38,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253959] [2022-07-14 14:02:38,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:38,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:38,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:38,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:02:38,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:38,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253959] [2022-07-14 14:02:38,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253959] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:38,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:38,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-14 14:02:38,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173187652] [2022-07-14 14:02:38,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:38,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:02:38,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:38,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:02:38,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:38,642 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-14 14:02:38,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:38,653 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2022-07-14 14:02:38,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:02:38,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2022-07-14 14:02:38,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:38,654 INFO L225 Difference]: With dead ends: 22 [2022-07-14 14:02:38,654 INFO L226 Difference]: Without dead ends: 20 [2022-07-14 14:02:38,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:02:38,655 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:38,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:38,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-07-14 14:02:38,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-07-14 14:02:38,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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) [2022-07-14 14:02:38,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2022-07-14 14:02:38,658 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 29 transitions. Word has length 3 [2022-07-14 14:02:38,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:38,659 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 29 transitions. [2022-07-14 14:02:38,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-07-14 14:02:38,659 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2022-07-14 14:02:38,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 14:02:38,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:02:38,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:02:38,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:02:38,660 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-14 14:02:38,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:02:38,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1281303693, now seen corresponding path program 1 times [2022-07-14 14:02:38,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:02:38,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615605988] [2022-07-14 14:02:38,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:02:38,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:02:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:02:38,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:02:38,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:02:38,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615605988] [2022-07-14 14:02:38,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615605988] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:02:38,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:02:38,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:02:38,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484727591] [2022-07-14 14:02:38,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:02:38,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:02:38,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:02:38,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:02:38,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:02:38,709 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-14 14:02:38,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:02:38,719 INFO L93 Difference]: Finished difference Result 18 states and 26 transitions. [2022-07-14 14:02:38,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:02:38,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2022-07-14 14:02:38,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:02:38,720 INFO L225 Difference]: With dead ends: 18 [2022-07-14 14:02:38,720 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 14:02:38,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 14:02:38,721 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:02:38,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:02:38,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 14:02:38,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 14:02:38,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-14 14:02:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 14:02:38,723 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-07-14 14:02:38,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:02:38,723 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:02:38,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-14 14:02:38,723 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 14:02:38,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 14:02:38,725 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-07-14 14:02:38,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-07-14 14:02:38,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-07-14 14:02:38,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-07-14 14:02:38,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-07-14 14:02:38,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-07-14 14:02:38,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-07-14 14:02:38,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 14:02:38,728 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-14 14:02:38,731 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-14 14:02:38,731 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 14:02:38,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:02:38 BasicIcfg [2022-07-14 14:02:38,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 14:02:38,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:02:38,734 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:02:38,734 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:02:38,734 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:02:35" (3/4) ... [2022-07-14 14:02:38,736 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 14:02:38,741 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-14 14:02:38,744 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-07-14 14:02:38,745 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-14 14:02:38,745 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-14 14:02:38,777 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:02:38,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:02:38,777 INFO L158 Benchmark]: Toolchain (without parser) took 3688.59ms. Allocated memory was 90.2MB in the beginning and 151.0MB in the end (delta: 60.8MB). Free memory was 49.9MB in the beginning and 116.7MB in the end (delta: -66.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:02:38,779 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 90.2MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:02:38,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.22ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 49.6MB in the beginning and 83.1MB in the end (delta: -33.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2022-07-14 14:02:38,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.19ms. Allocated memory is still 125.8MB. Free memory was 83.1MB in the beginning and 81.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:02:38,780 INFO L158 Benchmark]: Boogie Preprocessor took 13.44ms. Allocated memory is still 125.8MB. Free memory was 80.4MB in the beginning and 79.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:02:38,780 INFO L158 Benchmark]: RCFGBuilder took 304.81ms. Allocated memory is still 125.8MB. Free memory was 79.4MB in the beginning and 66.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-14 14:02:38,781 INFO L158 Benchmark]: TraceAbstraction took 2938.39ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 66.3MB in the beginning and 118.8MB in the end (delta: -52.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:02:38,781 INFO L158 Benchmark]: Witness Printer took 43.23ms. Allocated memory is still 151.0MB. Free memory was 118.8MB in the beginning and 116.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:02:38,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 90.2MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.22ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 49.6MB in the beginning and 83.1MB in the end (delta: -33.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.19ms. Allocated memory is still 125.8MB. Free memory was 83.1MB in the beginning and 81.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.44ms. Allocated memory is still 125.8MB. Free memory was 80.4MB in the beginning and 79.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.81ms. Allocated memory is still 125.8MB. Free memory was 79.4MB in the beginning and 66.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2938.39ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 66.3MB in the beginning and 118.8MB in the end (delta: -52.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.23ms. Allocated memory is still 151.0MB. Free memory was 118.8MB in the beginning and 116.7MB in the end (delta: 2.1MB). 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, 84 PlacesBefore, 21 PlacesAfterwards, 80 TransitionsBefore, 17 TransitionsAfterwards, 528 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 72 TotalNumberOfCompositions, 1026 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 705, positive: 616, positive conditional: 0, positive unconditional: 616, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 409, positive: 380, positive conditional: 0, positive unconditional: 380, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 409, positive: 363, positive conditional: 0, positive unconditional: 363, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 125, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 705, positive: 236, positive conditional: 0, positive unconditional: 236, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 409, unknown conditional: 0, unknown unconditional: 409] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 928]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 928]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 3 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-14 14:02:38,810 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 Result: TRUE