./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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/09-regions_10-arraylist_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 1baed13ebab66e483d7cdeb89ea6d8a13f60f251cb9c3e2839426a124626d3da --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:22:50,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:22:50,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:22:50,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:22:50,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:22:50,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:22:50,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:22:50,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:22:50,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:22:50,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:22:50,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:22:50,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:22:50,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:22:50,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:22:50,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:22:50,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:22:50,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:22:50,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:22:50,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:22:50,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:22:50,389 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:22:50,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:22:50,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:22:50,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:22:50,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:22:50,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:22:50,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:22:50,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:22:50,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:22:50,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:22:50,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:22:50,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:22:50,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:22:50,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:22:50,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:22:50,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:22:50,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:22:50,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:22:50,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:22:50,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:22:50,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:22:50,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:22:50,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:22:50,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:22:50,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:22:50,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:22:50,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:22:50,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:22:50,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:22:50,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:22:50,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:22:50,442 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:22:50,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:22:50,443 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:22:50,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:22:50,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:22:50,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:22:50,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:22:50,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:22:50,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:22:50,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:22:50,444 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:22:50,445 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:22:50,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:22:50,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:22:50,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:22:50,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:22:50,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:22:50,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:22:50,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:22:50,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:22:50,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:22:50,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:22:50,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:22:50,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:22:50,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:22:50,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1baed13ebab66e483d7cdeb89ea6d8a13f60f251cb9c3e2839426a124626d3da [2022-07-13 02:22:50,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:22:50,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:22:50,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:22:50,718 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:22:50,719 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:22:50,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i [2022-07-13 02:22:50,773 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60734827c/c20e635416a64dab88473f0c2cd96e49/FLAG7b0f85055 [2022-07-13 02:22:51,277 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:22:51,278 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i [2022-07-13 02:22:51,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60734827c/c20e635416a64dab88473f0c2cd96e49/FLAG7b0f85055 [2022-07-13 02:22:51,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60734827c/c20e635416a64dab88473f0c2cd96e49 [2022-07-13 02:22:51,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:22:51,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:22:51,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:22:51,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:22:51,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:22:51,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:22:51" (1/1) ... [2022-07-13 02:22:51,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b3135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:51, skipping insertion in model container [2022-07-13 02:22:51,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:22:51" (1/1) ... [2022-07-13 02:22:51,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:22:51,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:22:52,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:22:52,062 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:22:52,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:22:52,199 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:22:52,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52 WrapperNode [2022-07-13 02:22:52,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:22:52,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:22:52,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:22:52,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:22:52,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (1/1) ... [2022-07-13 02:22:52,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (1/1) ... [2022-07-13 02:22:52,252 INFO L137 Inliner]: procedures = 371, calls = 35, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 125 [2022-07-13 02:22:52,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:22:52,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:22:52,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:22:52,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:22:52,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (1/1) ... [2022-07-13 02:22:52,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (1/1) ... [2022-07-13 02:22:52,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (1/1) ... [2022-07-13 02:22:52,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (1/1) ... [2022-07-13 02:22:52,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (1/1) ... [2022-07-13 02:22:52,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (1/1) ... [2022-07-13 02:22:52,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (1/1) ... [2022-07-13 02:22:52,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:22:52,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:22:52,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:22:52,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:22:52,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (1/1) ... [2022-07-13 02:22:52,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:22:52,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:22:52,326 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) [2022-07-13 02:22:52,328 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 [2022-07-13 02:22:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:22:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 02:22:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:22:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:22:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:22:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:22:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 02:22:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:22:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 02:22:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:22:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:22:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:22:52,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:22:52,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:22:52,358 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 02:22:52,466 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:22:52,467 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:22:52,738 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:22:52,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:22:52,746 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 02:22:52,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:22:52 BoogieIcfgContainer [2022-07-13 02:22:52,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:22:52,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:22:52,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:22:52,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:22:52,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:22:51" (1/3) ... [2022-07-13 02:22:52,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e50f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:22:52, skipping insertion in model container [2022-07-13 02:22:52,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:22:52" (2/3) ... [2022-07-13 02:22:52,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e50f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:22:52, skipping insertion in model container [2022-07-13 02:22:52,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:22:52" (3/3) ... [2022-07-13 02:22:52,755 INFO L111 eAbstractionObserver]: Analyzing ICFG 09-regions_10-arraylist_rc.i [2022-07-13 02:22:52,759 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:22:52,767 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:22:52,767 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-13 02:22:52,767 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:22:52,837 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-13 02:22:52,865 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:22:52,875 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 158 transitions, 321 flow [2022-07-13 02:22:52,877 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 158 transitions, 321 flow [2022-07-13 02:22:52,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 158 places, 158 transitions, 321 flow [2022-07-13 02:22:52,924 INFO L129 PetriNetUnfolder]: 4/157 cut-off events. [2022-07-13 02:22:52,925 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-13 02:22:52,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 157 events. 4/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2022-07-13 02:22:52,932 INFO L116 LiptonReduction]: Number of co-enabled transitions 1824 [2022-07-13 02:23:13,050 INFO L131 LiptonReduction]: Checked pairs total: 3034 [2022-07-13 02:23:13,051 INFO L133 LiptonReduction]: Total number of compositions: 166 [2022-07-13 02:23:13,076 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 22 transitions, 49 flow [2022-07-13 02:23:13,100 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59 states, 54 states have (on average 1.9444444444444444) internal successors, (105), 58 states have internal predecessors, (105), 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) [2022-07-13 02:23:13,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:23:13,128 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@2134bf33, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@67774c55 [2022-07-13 02:23:13,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-13 02:23:13,130 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 54 states have (on average 1.9444444444444444) internal successors, (105), 58 states have internal predecessors, (105), 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) [2022-07-13 02:23:13,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-07-13 02:23:13,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:23:13,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-07-13 02:23:13,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:23:13,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:23:13,145 INFO L85 PathProgramCache]: Analyzing trace with hash 18215, now seen corresponding path program 1 times [2022-07-13 02:23:13,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:23:13,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909295828] [2022-07-13 02:23:13,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:23:13,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:23:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:23:13,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:23:13,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:23:13,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909295828] [2022-07-13 02:23:13,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909295828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:23:13,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:23:13,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:23:13,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542619885] [2022-07-13 02:23:13,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:23:13,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:23:13,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:23:13,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:23:13,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:23:13,366 INFO L87 Difference]: Start difference. First operand has 59 states, 54 states have (on average 1.9444444444444444) internal successors, (105), 58 states have internal predecessors, (105), 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 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:23:13,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:23:13,450 INFO L93 Difference]: Finished difference Result 57 states and 97 transitions. [2022-07-13 02:23:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:23:13,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-07-13 02:23:13,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:23:13,461 INFO L225 Difference]: With dead ends: 57 [2022-07-13 02:23:13,461 INFO L226 Difference]: Without dead ends: 51 [2022-07-13 02:23:13,462 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 [2022-07-13 02:23:13,469 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:23:13,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:23:13,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-13 02:23:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-13 02:23:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.7551020408163265) internal successors, (86), 50 states have internal predecessors, (86), 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) [2022-07-13 02:23:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 86 transitions. [2022-07-13 02:23:13,498 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 86 transitions. Word has length 2 [2022-07-13 02:23:13,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:23:13,498 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 86 transitions. [2022-07-13 02:23:13,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-07-13 02:23:13,499 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 86 transitions. [2022-07-13 02:23:13,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:23:13,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:23:13,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:23:13,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:23:13,500 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:23:13,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:23:13,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1657944939, now seen corresponding path program 1 times [2022-07-13 02:23:13,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:23:13,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717007763] [2022-07-13 02:23:13,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:23:13,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:23:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:23:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:23:13,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:23:13,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717007763] [2022-07-13 02:23:13,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717007763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:23:13,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:23:13,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:23:13,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31380363] [2022-07-13 02:23:13,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:23:13,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:23:13,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:23:13,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:23:13,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:23:13,645 INFO L87 Difference]: Start difference. First operand 51 states and 86 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-07-13 02:23:13,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:23:13,716 INFO L93 Difference]: Finished difference Result 52 states and 87 transitions. [2022-07-13 02:23:13,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:23:13,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-07-13 02:23:13,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:23:13,717 INFO L225 Difference]: With dead ends: 52 [2022-07-13 02:23:13,717 INFO L226 Difference]: Without dead ends: 52 [2022-07-13 02:23:13,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:23:13,719 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:23:13,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:23:13,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-07-13 02:23:13,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-13 02:23:13,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.74) internal successors, (87), 51 states have internal predecessors, (87), 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) [2022-07-13 02:23:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 87 transitions. [2022-07-13 02:23:13,726 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 87 transitions. Word has length 9 [2022-07-13 02:23:13,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:23:13,726 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 87 transitions. [2022-07-13 02:23:13,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-07-13 02:23:13,727 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 87 transitions. [2022-07-13 02:23:13,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 02:23:13,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:23:13,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:23:13,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:23:13,728 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:23:13,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:23:13,728 INFO L85 PathProgramCache]: Analyzing trace with hash -511161249, now seen corresponding path program 1 times [2022-07-13 02:23:13,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:23:13,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662972461] [2022-07-13 02:23:13,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:23:13,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:23:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:23:13,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:23:13,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:23:13,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662972461] [2022-07-13 02:23:13,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662972461] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:23:13,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986583711] [2022-07-13 02:23:13,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:23:13,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:23:13,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:23:13,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:23:13,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:23:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:23:14,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:23:14,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:23:14,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:23:14,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:23:14,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:23:14,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986583711] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:23:14,078 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:23:14,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-13 02:23:14,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331902658] [2022-07-13 02:23:14,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:23:14,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:23:14,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:23:14,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:23:14,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:23:14,080 INFO L87 Difference]: Start difference. First operand 52 states and 87 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-07-13 02:23:14,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:23:14,207 INFO L93 Difference]: Finished difference Result 55 states and 90 transitions. [2022-07-13 02:23:14,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:23:14,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 10 [2022-07-13 02:23:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:23:14,214 INFO L225 Difference]: With dead ends: 55 [2022-07-13 02:23:14,214 INFO L226 Difference]: Without dead ends: 55 [2022-07-13 02:23:14,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:23:14,215 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:23:14,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:23:14,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-07-13 02:23:14,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-07-13 02:23:14,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.6981132075471699) internal successors, (90), 54 states have internal predecessors, (90), 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) [2022-07-13 02:23:14,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 90 transitions. [2022-07-13 02:23:14,222 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 90 transitions. Word has length 10 [2022-07-13 02:23:14,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:23:14,223 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 90 transitions. [2022-07-13 02:23:14,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-07-13 02:23:14,223 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 90 transitions. [2022-07-13 02:23:14,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 02:23:14,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:23:14,224 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:23:14,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 02:23:14,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:23:14,446 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-13 02:23:14,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:23:14,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1749604459, now seen corresponding path program 2 times [2022-07-13 02:23:14,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:23:14,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955260326] [2022-07-13 02:23:14,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:23:14,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:23:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:23:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:23:14,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:23:14,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955260326] [2022-07-13 02:23:14,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955260326] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:23:14,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079625268] [2022-07-13 02:23:14,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:23:14,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:23:14,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:23:14,568 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:23:14,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:23:14,766 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:23:14,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:23:14,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:23:14,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:23:14,804 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 02:23:14,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:23:14,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079625268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:23:14,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:23:14,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2022-07-13 02:23:14,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834204169] [2022-07-13 02:23:14,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:23:14,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:23:14,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:23:14,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:23:14,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:23:14,807 INFO L87 Difference]: Start difference. First operand 55 states and 90 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-07-13 02:23:14,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:23:14,870 INFO L93 Difference]: Finished difference Result 43 states and 68 transitions. [2022-07-13 02:23:14,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:23:14,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 13 [2022-07-13 02:23:14,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:23:14,871 INFO L225 Difference]: With dead ends: 43 [2022-07-13 02:23:14,871 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 02:23:14,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:23:14,872 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:23:14,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:23:14,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 02:23:14,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 02:23:14,874 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) [2022-07-13 02:23:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 02:23:14,874 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-07-13 02:23:14,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:23:14,874 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 02:23:14,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-07-13 02:23:14,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 02:23:14,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 02:23:14,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-07-13 02:23:14,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-07-13 02:23:14,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-07-13 02:23:14,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-07-13 02:23:14,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-07-13 02:23:14,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-07-13 02:23:14,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-07-13 02:23:14,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 02:23:15,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-13 02:23:15,097 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-07-13 02:23:15,101 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 02:23:15,101 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:23:15,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:23:15 BasicIcfg [2022-07-13 02:23:15,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:23:15,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:23:15,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:23:15,104 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:23:15,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:22:52" (3/4) ... [2022-07-13 02:23:15,106 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 02:23:15,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-13 02:23:15,115 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-07-13 02:23:15,115 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-13 02:23:15,115 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 02:23:15,115 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 02:23:15,144 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 02:23:15,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:23:15,144 INFO L158 Benchmark]: Toolchain (without parser) took 23575.04ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 62.6MB in the beginning and 72.3MB in the end (delta: -9.7MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-07-13 02:23:15,144 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory was 81.9MB in the beginning and 81.8MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:23:15,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.51ms. Allocated memory is still 102.8MB. Free memory was 62.3MB in the beginning and 58.1MB in the end (delta: 4.3MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-07-13 02:23:15,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.47ms. Allocated memory is still 102.8MB. Free memory was 58.1MB in the beginning and 55.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 02:23:15,145 INFO L158 Benchmark]: Boogie Preprocessor took 35.74ms. Allocated memory is still 102.8MB. Free memory was 55.0MB in the beginning and 53.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:23:15,145 INFO L158 Benchmark]: RCFGBuilder took 456.89ms. Allocated memory is still 102.8MB. Free memory was 52.9MB in the beginning and 72.1MB in the end (delta: -19.2MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-07-13 02:23:15,145 INFO L158 Benchmark]: TraceAbstraction took 22353.66ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 71.6MB in the beginning and 75.3MB in the end (delta: -3.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2022-07-13 02:23:15,146 INFO L158 Benchmark]: Witness Printer took 40.26ms. Allocated memory is still 123.7MB. Free memory was 75.3MB in the beginning and 72.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:23:15,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 102.8MB. Free memory was 81.9MB in the beginning and 81.8MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.51ms. Allocated memory is still 102.8MB. Free memory was 62.3MB in the beginning and 58.1MB in the end (delta: 4.3MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.47ms. Allocated memory is still 102.8MB. Free memory was 58.1MB in the beginning and 55.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.74ms. Allocated memory is still 102.8MB. Free memory was 55.0MB in the beginning and 53.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 456.89ms. Allocated memory is still 102.8MB. Free memory was 52.9MB in the beginning and 72.1MB in the end (delta: -19.2MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * TraceAbstraction took 22353.66ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 71.6MB in the beginning and 75.3MB in the end (delta: -3.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Witness Printer took 40.26ms. Allocated memory is still 123.7MB. Free memory was 75.3MB in the beginning and 72.3MB in the end (delta: 3.0MB). 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: 20.2s, 158 PlacesBefore, 24 PlacesAfterwards, 158 TransitionsBefore, 22 TransitionsAfterwards, 1824 CoEnabledTransitionPairs, 9 FixpointIterations, 87 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 166 TotalNumberOfCompositions, 3034 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1958, positive: 1783, positive conditional: 0, positive unconditional: 1783, negative: 175, negative conditional: 0, negative unconditional: 175, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1335, positive: 1282, positive conditional: 0, positive unconditional: 1282, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1335, positive: 1265, positive conditional: 0, positive unconditional: 1265, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 176, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1958, positive: 501, positive conditional: 0, positive unconditional: 501, negative: 122, negative conditional: 0, negative unconditional: 122, unknown: 1335, unknown conditional: 0, unknown unconditional: 1335] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - 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: 1254]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1254]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1250]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1250]: 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, 204 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 22.2s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 20.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 5 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 116 SizeOfPredicates, 2 NumberOfNonLiveVariables, 858 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 10/23 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! [2022-07-13 02:23:15,177 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 Result: TRUE