./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.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/28-race_reach_46-escape_racefree.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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:29:47,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:29:47,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:29:47,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:29:47,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:29:47,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:29:47,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:29:47,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:29:47,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:29:47,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:29:47,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:29:47,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:29:47,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:29:47,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:29:47,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:29:47,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:29:47,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:29:47,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:29:47,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:29:47,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:29:47,365 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:29:47,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:29:47,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:29:47,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:29:47,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:29:47,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:29:47,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:29:47,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:29:47,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:29:47,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:29:47,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:29:47,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:29:47,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:29:47,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:29:47,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:29:47,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:29:47,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:29:47,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:29:47,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:29:47,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:29:47,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:29:47,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:29:47,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:29:47,417 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:29:47,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:29:47,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:29:47,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:29:47,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:29:47,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:29:47,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:29:47,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:29:47,420 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:29:47,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:29:47,422 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:29:47,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:29:47,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:29:47,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:29:47,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:29:47,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:29:47,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:29:47,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:29:47,423 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:29:47,423 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:29:47,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:29:47,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:29:47,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:29:47,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:29:47,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:29:47,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:29:47,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:29:47,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:29:47,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:29:47,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:29:47,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:29:47,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:29:47,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:29:47,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2022-07-13 02:29:47,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:29:47,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:29:47,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:29:47,719 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:29:47,720 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:29:47,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-07-13 02:29:47,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/531764191/77e5cae29f5048078c7ab1e79ef895c9/FLAGaf9d9f84f [2022-07-13 02:29:48,364 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:29:48,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-07-13 02:29:48,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/531764191/77e5cae29f5048078c7ab1e79ef895c9/FLAGaf9d9f84f [2022-07-13 02:29:48,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/531764191/77e5cae29f5048078c7ab1e79ef895c9 [2022-07-13 02:29:48,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:29:48,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:29:48,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:29:48,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:29:48,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:29:48,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:29:48" (1/1) ... [2022-07-13 02:29:48,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11733b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:48, skipping insertion in model container [2022-07-13 02:29:48,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:29:48" (1/1) ... [2022-07-13 02:29:48,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:29:48,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:29:49,021 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-07-13 02:29:49,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:29:49,054 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:29:49,081 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-07-13 02:29:49,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:29:49,122 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:29:49,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49 WrapperNode [2022-07-13 02:29:49,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:29:49,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:29:49,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:29:49,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:29:49,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (1/1) ... [2022-07-13 02:29:49,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (1/1) ... [2022-07-13 02:29:49,182 INFO L137 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-07-13 02:29:49,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:29:49,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:29:49,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:29:49,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:29:49,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (1/1) ... [2022-07-13 02:29:49,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (1/1) ... [2022-07-13 02:29:49,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (1/1) ... [2022-07-13 02:29:49,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (1/1) ... [2022-07-13 02:29:49,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (1/1) ... [2022-07-13 02:29:49,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (1/1) ... [2022-07-13 02:29:49,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (1/1) ... [2022-07-13 02:29:49,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:29:49,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:29:49,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:29:49,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:29:49,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (1/1) ... [2022-07-13 02:29:49,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:29:49,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:29:49,255 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 02:29:49,257 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 02:29:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:29:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:29:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:29:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:29:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:29:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-13 02:29:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-13 02:29:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:29:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:29:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:29:49,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:29:49,289 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 02:29:49,424 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:29:49,425 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:29:49,637 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:29:49,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:29:49,647 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-13 02:29:49,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:29:49 BoogieIcfgContainer [2022-07-13 02:29:49,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:29:49,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:29:49,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:29:49,656 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:29:49,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:29:48" (1/3) ... [2022-07-13 02:29:49,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680acd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:29:49, skipping insertion in model container [2022-07-13 02:29:49,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:29:49" (2/3) ... [2022-07-13 02:29:49,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680acd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:29:49, skipping insertion in model container [2022-07-13 02:29:49,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:29:49" (3/3) ... [2022-07-13 02:29:49,660 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-07-13 02:29:49,665 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:29:49,674 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:29:49,674 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-13 02:29:49,674 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:29:49,755 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-13 02:29:49,805 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:29:49,815 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 117 transitions, 242 flow [2022-07-13 02:29:49,822 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 117 transitions, 242 flow [2022-07-13 02:29:49,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 117 transitions, 242 flow [2022-07-13 02:29:49,882 INFO L129 PetriNetUnfolder]: 9/116 cut-off events. [2022-07-13 02:29:49,882 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-13 02:29:49,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 116 events. 9/116 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 188 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 64. Up to 3 conditions per place. [2022-07-13 02:29:49,891 INFO L116 LiptonReduction]: Number of co-enabled transitions 1886 [2022-07-13 02:29:53,945 INFO L131 LiptonReduction]: Checked pairs total: 3076 [2022-07-13 02:29:53,945 INFO L133 LiptonReduction]: Total number of compositions: 114 [2022-07-13 02:29:53,953 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 32 transitions, 72 flow [2022-07-13 02:29:53,972 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 93 states, 89 states have (on average 2.5280898876404496) internal successors, (225), 92 states have internal predecessors, (225), 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 02:29:53,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:29:53,990 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@2f5b1203, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@676629a9 [2022-07-13 02:29:53,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-07-13 02:29:53,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 89 states have (on average 2.5280898876404496) internal successors, (225), 92 states have internal predecessors, (225), 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 02:29:53,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:29:53,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:29:53,998 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 02:29:53,998 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:29:54,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:29:54,003 INFO L85 PathProgramCache]: Analyzing trace with hash 429838191, now seen corresponding path program 1 times [2022-07-13 02:29:54,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:29:54,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573124692] [2022-07-13 02:29:54,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:29:54,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:29:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:29:54,271 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 02:29:54,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:29:54,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573124692] [2022-07-13 02:29:54,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573124692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:29:54,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:29:54,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:29:54,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882618708] [2022-07-13 02:29:54,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:29:54,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:29:54,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:29:54,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:29:54,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:29:54,312 INFO L87 Difference]: Start difference. First operand has 93 states, 89 states have (on average 2.5280898876404496) internal successors, (225), 92 states have internal predecessors, (225), 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 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 02:29:54,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:29:54,413 INFO L93 Difference]: Finished difference Result 79 states and 138 transitions. [2022-07-13 02:29:54,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:29:54,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-07-13 02:29:54,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:29:54,422 INFO L225 Difference]: With dead ends: 79 [2022-07-13 02:29:54,423 INFO L226 Difference]: Without dead ends: 58 [2022-07-13 02:29:54,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:29:54,427 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 26 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:29:54,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 1 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:29:54,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-07-13 02:29:54,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-07-13 02:29:54,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.7678571428571428) internal successors, (99), 57 states have internal predecessors, (99), 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 02:29:54,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 99 transitions. [2022-07-13 02:29:54,460 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 99 transitions. Word has length 5 [2022-07-13 02:29:54,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:29:54,461 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 99 transitions. [2022-07-13 02:29:54,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 02:29:54,461 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 99 transitions. [2022-07-13 02:29:54,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 02:29:54,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:29:54,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:29:54,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:29:54,463 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:29:54,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:29:54,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2010670486, now seen corresponding path program 1 times [2022-07-13 02:29:54,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:29:54,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166380116] [2022-07-13 02:29:54,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:29:54,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:29:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:29:54,546 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 02:29:54,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:29:54,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166380116] [2022-07-13 02:29:54,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166380116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:29:54,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:29:54,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:29:54,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514390253] [2022-07-13 02:29:54,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:29:54,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:29:54,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:29:54,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:29:54,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:29:54,550 INFO L87 Difference]: Start difference. First operand 58 states and 99 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-07-13 02:29:54,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:29:54,621 INFO L93 Difference]: Finished difference Result 51 states and 86 transitions. [2022-07-13 02:29:54,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:29:54,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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 [2022-07-13 02:29:54,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:29:54,623 INFO L225 Difference]: With dead ends: 51 [2022-07-13 02:29:54,623 INFO L226 Difference]: Without dead ends: 51 [2022-07-13 02:29:54,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:29:54,625 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 32 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:29:54,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 2 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:29:54,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-07-13 02:29:54,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-07-13 02:29:54,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.72) 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 02:29:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 86 transitions. [2022-07-13 02:29:54,632 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 86 transitions. Word has length 8 [2022-07-13 02:29:54,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:29:54,632 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 86 transitions. [2022-07-13 02:29:54,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 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) [2022-07-13 02:29:54,632 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 86 transitions. [2022-07-13 02:29:54,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 02:29:54,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:29:54,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:29:54,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:29:54,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-07-13 02:29:54,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:29:54,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2010670485, now seen corresponding path program 1 times [2022-07-13 02:29:54,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:29:54,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130827424] [2022-07-13 02:29:54,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:29:54,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:29:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:29:54,691 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 02:29:54,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:29:54,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130827424] [2022-07-13 02:29:54,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130827424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:29:54,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:29:54,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:29:54,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773782940] [2022-07-13 02:29:54,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:29:54,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:29:54,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:29:54,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:29:54,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:29:54,695 INFO L87 Difference]: Start difference. First operand 51 states and 86 transitions. Second operand has 3 states, 2 states have (on average 4.0) 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) [2022-07-13 02:29:54,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:29:54,720 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2022-07-13 02:29:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:29:54,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) 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 [2022-07-13 02:29:54,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:29:54,721 INFO L225 Difference]: With dead ends: 44 [2022-07-13 02:29:54,721 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 02:29:54,722 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 02:29:54,723 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:29:54,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:29:54,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 02:29:54,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 02:29:54,724 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 02:29:54,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 02:29:54,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-07-13 02:29:54,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:29:54,725 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 02:29:54,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) 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) [2022-07-13 02:29:54,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 02:29:54,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 02:29:54,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2022-07-13 02:29:54,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-07-13 02:29:54,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-07-13 02:29:54,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-07-13 02:29:54,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 9 remaining) [2022-07-13 02:29:54,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-07-13 02:29:54,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-07-13 02:29:54,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-07-13 02:29:54,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-07-13 02:29:54,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:29:54,733 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-07-13 02:29:54,738 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-13 02:29:54,738 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:29:54,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:29:54 BasicIcfg [2022-07-13 02:29:54,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:29:54,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:29:54,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:29:54,742 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:29:54,742 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:29:49" (3/4) ... [2022-07-13 02:29:54,745 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 02:29:54,750 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-13 02:29:54,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-07-13 02:29:54,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-13 02:29:54,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 02:29:54,754 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 02:29:54,781 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 02:29:54,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:29:54,782 INFO L158 Benchmark]: Toolchain (without parser) took 6110.29ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 59.8MB in the beginning and 68.4MB in the end (delta: -8.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-07-13 02:29:54,782 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 75.5MB. Free memory was 54.9MB in the beginning and 54.9MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:29:54,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.12ms. Allocated memory is still 94.4MB. Free memory was 59.6MB in the beginning and 60.4MB in the end (delta: -809.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 02:29:54,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.45ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 58.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:29:54,783 INFO L158 Benchmark]: Boogie Preprocessor took 35.23ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 56.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:29:54,783 INFO L158 Benchmark]: RCFGBuilder took 431.21ms. Allocated memory is still 94.4MB. Free memory was 56.7MB in the beginning and 43.3MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 02:29:54,783 INFO L158 Benchmark]: TraceAbstraction took 5088.76ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 42.7MB in the beginning and 71.6MB in the end (delta: -28.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:29:54,784 INFO L158 Benchmark]: Witness Printer took 39.58ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 68.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:29:54,788 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 75.5MB. Free memory was 54.9MB in the beginning and 54.9MB in the end (delta: 26.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.12ms. Allocated memory is still 94.4MB. Free memory was 59.6MB in the beginning and 60.4MB in the end (delta: -809.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.45ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 58.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.23ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 56.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.21ms. Allocated memory is still 94.4MB. Free memory was 56.7MB in the beginning and 43.3MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5088.76ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 42.7MB in the beginning and 71.6MB in the end (delta: -28.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.58ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 68.4MB in the end (delta: 3.1MB). 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: 4.1s, 112 PlacesBefore, 28 PlacesAfterwards, 117 TransitionsBefore, 32 TransitionsAfterwards, 1886 CoEnabledTransitionPairs, 6 FixpointIterations, 48 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 114 TotalNumberOfCompositions, 3076 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2003, positive: 1905, positive conditional: 0, positive unconditional: 1905, negative: 98, negative conditional: 0, negative unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1376, positive: 1344, positive conditional: 0, positive unconditional: 1344, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1376, positive: 1270, positive conditional: 0, positive unconditional: 1270, negative: 106, negative conditional: 0, negative unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 106, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 213, positive: 100, positive conditional: 0, positive unconditional: 100, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2003, positive: 561, positive conditional: 0, positive unconditional: 561, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 1376, unknown conditional: 0, unknown unconditional: 1376] , Statistics on independence cache: Total cache size (in pairs): 120, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13 - 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: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: 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, 146 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 4 mSDtfsCounter, 169 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 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! [2022-07-13 02:29:54,824 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