./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix023_tso.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix023_tso.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 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:40:56,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:40:56,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:40:56,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:40:56,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:40:56,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:40:56,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:40:56,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:40:56,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:40:56,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:40:56,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:40:56,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:40:56,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:40:56,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:40:56,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:40:56,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:40:56,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:40:56,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:40:56,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:40:56,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:40:56,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:40:56,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:40:56,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:40:56,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:40:56,456 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:40:56,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:40:56,461 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:40:56,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:40:56,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:40:56,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:40:56,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:40:56,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:40:56,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:40:56,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:40:56,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:40:56,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:40:56,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:40:56,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:40:56,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:40:56,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:40:56,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:40:56,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:40:56,510 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:40:56,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:40:56,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:40:56,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:40:56,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:40:56,512 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:40:56,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:40:56,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:40:56,513 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:40:56,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:40:56,514 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:40:56,514 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:40:56,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:40:56,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:40:56,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:40:56,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:40:56,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:40:56,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:40:56,516 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:40:56,516 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:40:56,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:40:56,516 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:40:56,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:40:56,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:40:56,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:40:56,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:40:56,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:40:56,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:40:56,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:40:56,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:40:56,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:40:56,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:40:56,519 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:40:56,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:40:56,519 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:40:56,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:40:56,519 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:40:56,520 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:40:56,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:40:56,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:40:56,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:40:56,873 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:40:56,873 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:40:56,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix023_tso.i [2023-08-30 08:40:58,154 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:40:58,461 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:40:58,462 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix023_tso.i [2023-08-30 08:40:58,474 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078fc1746/69c4adc7610f43e1aef10f2d787fa98b/FLAG02e45f389 [2023-08-30 08:40:58,492 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/078fc1746/69c4adc7610f43e1aef10f2d787fa98b [2023-08-30 08:40:58,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:40:58,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:40:58,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:40:58,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:40:58,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:40:58,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:40:58" (1/1) ... [2023-08-30 08:40:58,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bab4d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:58, skipping insertion in model container [2023-08-30 08:40:58,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:40:58" (1/1) ... [2023-08-30 08:40:58,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:40:58,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:40:58,712 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix023_tso.i[944,957] [2023-08-30 08:40:58,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:40:59,009 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:40:59,020 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix023_tso.i[944,957] [2023-08-30 08:40:59,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:40:59,162 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:40:59,162 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:40:59,167 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:40:59,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59 WrapperNode [2023-08-30 08:40:59,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:40:59,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:40:59,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:40:59,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:40:59,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,263 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 286 [2023-08-30 08:40:59,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:40:59,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:40:59,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:40:59,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:40:59,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,315 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:40:59,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:40:59,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:40:59,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:40:59,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (1/1) ... [2023-08-30 08:40:59,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:40:59,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:40:59,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:40:59,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:40:59,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:40:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:40:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:40:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:40:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:40:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:40:59,394 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:40:59,394 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:40:59,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:40:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:40:59,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:40:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 08:40:59,395 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 08:40:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:40:59,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:40:59,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:40:59,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:40:59,397 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:40:59,516 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:40:59,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:41:00,091 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:41:00,331 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:41:00,331 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:41:00,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:41:00 BoogieIcfgContainer [2023-08-30 08:41:00,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:41:00,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:41:00,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:41:00,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:41:00,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:40:58" (1/3) ... [2023-08-30 08:41:00,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebb0542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:41:00, skipping insertion in model container [2023-08-30 08:41:00,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:40:59" (2/3) ... [2023-08-30 08:41:00,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebb0542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:41:00, skipping insertion in model container [2023-08-30 08:41:00,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:41:00" (3/3) ... [2023-08-30 08:41:00,342 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_tso.i [2023-08-30 08:41:00,349 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:41:00,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:41:00,358 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 08:41:00,358 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:41:00,439 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:41:00,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 156 transitions, 332 flow [2023-08-30 08:41:00,563 INFO L130 PetriNetUnfolder]: 2/152 cut-off events. [2023-08-30 08:41:00,563 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:41:00,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 152 events. 2/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-30 08:41:00,569 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 156 transitions, 332 flow [2023-08-30 08:41:00,578 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 152 transitions, 316 flow [2023-08-30 08:41:00,581 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:41:00,596 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 152 transitions, 316 flow [2023-08-30 08:41:00,600 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 152 transitions, 316 flow [2023-08-30 08:41:00,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 152 transitions, 316 flow [2023-08-30 08:41:00,646 INFO L130 PetriNetUnfolder]: 2/152 cut-off events. [2023-08-30 08:41:00,647 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:41:00,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 152 events. 2/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-30 08:41:00,652 INFO L119 LiptonReduction]: Number of co-enabled transitions 4146 [2023-08-30 08:41:06,225 INFO L134 LiptonReduction]: Checked pairs total: 15999 [2023-08-30 08:41:06,225 INFO L136 LiptonReduction]: Total number of compositions: 121 [2023-08-30 08:41:06,237 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:41:06,242 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@78c6f6ae, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:41:06,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 08:41:06,248 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 08:41:06,248 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:41:06,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:41:06,249 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:41:06,249 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:41:06,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:41:06,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1806916397, now seen corresponding path program 1 times [2023-08-30 08:41:06,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:41:06,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504830133] [2023-08-30 08:41:06,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:41:06,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:41:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:41:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:41:06,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:41:06,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504830133] [2023-08-30 08:41:06,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504830133] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:41:06,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:41:06,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:41:06,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085966520] [2023-08-30 08:41:06,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:41:06,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:41:06,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:41:06,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:41:06,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:41:06,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 277 [2023-08-30 08:41:06,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:06,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:41:06,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 277 [2023-08-30 08:41:06,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:41:09,695 INFO L130 PetriNetUnfolder]: 14637/19739 cut-off events. [2023-08-30 08:41:09,696 INFO L131 PetriNetUnfolder]: For 161/161 co-relation queries the response was YES. [2023-08-30 08:41:09,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39625 conditions, 19739 events. 14637/19739 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 105778 event pairs, 14637 based on Foata normal form. 0/16002 useless extension candidates. Maximal degree in co-relation 39613. Up to 19508 conditions per place. [2023-08-30 08:41:09,847 INFO L137 encePairwiseOnDemand]: 271/277 looper letters, 29 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2023-08-30 08:41:09,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 34 transitions, 140 flow [2023-08-30 08:41:09,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:41:09,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:41:09,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2023-08-30 08:41:09,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4969915764139591 [2023-08-30 08:41:09,861 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2023-08-30 08:41:09,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2023-08-30 08:41:09,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:41:09,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2023-08-30 08:41:09,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:09,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:09,873 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:09,874 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 90 flow. Second operand 3 states and 413 transitions. [2023-08-30 08:41:09,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 34 transitions, 140 flow [2023-08-30 08:41:09,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 34 transitions, 136 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:41:09,882 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 78 flow [2023-08-30 08:41:09,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2023-08-30 08:41:09,887 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -6 predicate places. [2023-08-30 08:41:09,887 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 78 flow [2023-08-30 08:41:09,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:09,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:41:09,888 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:41:09,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:41:09,889 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:41:09,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:41:09,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1806916396, now seen corresponding path program 1 times [2023-08-30 08:41:09,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:41:09,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450787713] [2023-08-30 08:41:09,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:41:09,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:41:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:41:09,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:41:09,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:41:09,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450787713] [2023-08-30 08:41:09,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450787713] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:41:09,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:41:09,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:41:09,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066243778] [2023-08-30 08:41:09,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:41:09,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:41:09,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:41:09,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:41:09,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:41:09,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 277 [2023-08-30 08:41:09,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:09,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:41:09,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 277 [2023-08-30 08:41:09,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:41:12,090 INFO L130 PetriNetUnfolder]: 9475/13067 cut-off events. [2023-08-30 08:41:12,091 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:41:12,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26297 conditions, 13067 events. 9475/13067 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 70431 event pairs, 2739 based on Foata normal form. 0/11432 useless extension candidates. Maximal degree in co-relation 26291. Up to 10053 conditions per place. [2023-08-30 08:41:12,164 INFO L137 encePairwiseOnDemand]: 268/277 looper letters, 49 selfloop transitions, 5 changer transitions 0/58 dead transitions. [2023-08-30 08:41:12,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 58 transitions, 240 flow [2023-08-30 08:41:12,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:41:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:41:12,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2023-08-30 08:41:12,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5246690734055355 [2023-08-30 08:41:12,169 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2023-08-30 08:41:12,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2023-08-30 08:41:12,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:41:12,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2023-08-30 08:41:12,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:12,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:12,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:12,176 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 78 flow. Second operand 3 states and 436 transitions. [2023-08-30 08:41:12,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 58 transitions, 240 flow [2023-08-30 08:41:12,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 58 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:41:12,178 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 116 flow [2023-08-30 08:41:12,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2023-08-30 08:41:12,179 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -4 predicate places. [2023-08-30 08:41:12,179 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 116 flow [2023-08-30 08:41:12,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:12,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:41:12,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:41:12,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:41:12,181 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:41:12,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:41:12,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1125716123, now seen corresponding path program 1 times [2023-08-30 08:41:12,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:41:12,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626248275] [2023-08-30 08:41:12,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:41:12,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:41:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:41:12,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:41:12,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:41:12,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626248275] [2023-08-30 08:41:12,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626248275] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:41:12,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:41:12,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:41:12,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979605182] [2023-08-30 08:41:12,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:41:12,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:41:12,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:41:12,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:41:12,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:41:12,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 277 [2023-08-30 08:41:12,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:12,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:41:12,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 277 [2023-08-30 08:41:12,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:41:13,716 INFO L130 PetriNetUnfolder]: 6691/9273 cut-off events. [2023-08-30 08:41:13,716 INFO L131 PetriNetUnfolder]: For 815/815 co-relation queries the response was YES. [2023-08-30 08:41:13,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21871 conditions, 9273 events. 6691/9273 cut-off events. For 815/815 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 48601 event pairs, 2140 based on Foata normal form. 0/8904 useless extension candidates. Maximal degree in co-relation 21863. Up to 3568 conditions per place. [2023-08-30 08:41:13,761 INFO L137 encePairwiseOnDemand]: 268/277 looper letters, 67 selfloop transitions, 9 changer transitions 0/80 dead transitions. [2023-08-30 08:41:13,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 80 transitions, 370 flow [2023-08-30 08:41:13,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:41:13,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:41:13,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 584 transitions. [2023-08-30 08:41:13,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5270758122743683 [2023-08-30 08:41:13,763 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 584 transitions. [2023-08-30 08:41:13,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 584 transitions. [2023-08-30 08:41:13,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:41:13,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 584 transitions. [2023-08-30 08:41:13,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:13,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 277.0) internal successors, (1385), 5 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:13,769 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 277.0) internal successors, (1385), 5 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:13,769 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 116 flow. Second operand 4 states and 584 transitions. [2023-08-30 08:41:13,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 80 transitions, 370 flow [2023-08-30 08:41:13,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 80 transitions, 365 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:41:13,772 INFO L231 Difference]: Finished difference. Result has 50 places, 42 transitions, 169 flow [2023-08-30 08:41:13,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=50, PETRI_TRANSITIONS=42} [2023-08-30 08:41:13,773 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -1 predicate places. [2023-08-30 08:41:13,773 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 169 flow [2023-08-30 08:41:13,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:13,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:41:13,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:41:13,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:41:13,775 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:41:13,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:41:13,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1742151082, now seen corresponding path program 1 times [2023-08-30 08:41:13,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:41:13,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150868849] [2023-08-30 08:41:13,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:41:13,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:41:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:41:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:41:13,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:41:13,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150868849] [2023-08-30 08:41:13,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150868849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:41:13,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:41:13,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:41:13,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13764345] [2023-08-30 08:41:13,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:41:13,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:41:13,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:41:13,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:41:13,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:41:13,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 277 [2023-08-30 08:41:13,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 169 flow. Second operand has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:13,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:41:13,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 277 [2023-08-30 08:41:13,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:41:15,033 INFO L130 PetriNetUnfolder]: 6253/8589 cut-off events. [2023-08-30 08:41:15,033 INFO L131 PetriNetUnfolder]: For 5211/5211 co-relation queries the response was YES. [2023-08-30 08:41:15,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21967 conditions, 8589 events. 6253/8589 cut-off events. For 5211/5211 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 44383 event pairs, 2085 based on Foata normal form. 0/8496 useless extension candidates. Maximal degree in co-relation 21957. Up to 3568 conditions per place. [2023-08-30 08:41:15,076 INFO L137 encePairwiseOnDemand]: 268/277 looper letters, 79 selfloop transitions, 13 changer transitions 4/100 dead transitions. [2023-08-30 08:41:15,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 100 transitions, 505 flow [2023-08-30 08:41:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:41:15,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:41:15,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 730 transitions. [2023-08-30 08:41:15,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5270758122743683 [2023-08-30 08:41:15,083 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 730 transitions. [2023-08-30 08:41:15,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 730 transitions. [2023-08-30 08:41:15,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:41:15,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 730 transitions. [2023-08-30 08:41:15,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:15,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:15,089 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:15,089 INFO L175 Difference]: Start difference. First operand has 50 places, 42 transitions, 169 flow. Second operand 5 states and 730 transitions. [2023-08-30 08:41:15,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 100 transitions, 505 flow [2023-08-30 08:41:15,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 100 transitions, 487 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 08:41:15,098 INFO L231 Difference]: Finished difference. Result has 53 places, 42 transitions, 193 flow [2023-08-30 08:41:15,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=193, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2023-08-30 08:41:15,099 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 2 predicate places. [2023-08-30 08:41:15,099 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 193 flow [2023-08-30 08:41:15,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:15,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:41:15,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:41:15,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:41:15,101 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:41:15,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:41:15,101 INFO L85 PathProgramCache]: Analyzing trace with hash -137506124, now seen corresponding path program 1 times [2023-08-30 08:41:15,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:41:15,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647143466] [2023-08-30 08:41:15,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:41:15,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:41:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:41:15,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:41:15,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:41:15,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647143466] [2023-08-30 08:41:15,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647143466] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:41:15,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:41:15,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:41:15,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286127320] [2023-08-30 08:41:15,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:41:15,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:41:15,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:41:15,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:41:15,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:41:15,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 277 [2023-08-30 08:41:15,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:15,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:41:15,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 277 [2023-08-30 08:41:15,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:41:16,652 INFO L130 PetriNetUnfolder]: 6218/8529 cut-off events. [2023-08-30 08:41:16,652 INFO L131 PetriNetUnfolder]: For 6201/6201 co-relation queries the response was YES. [2023-08-30 08:41:16,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22348 conditions, 8529 events. 6218/8529 cut-off events. For 6201/6201 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 44191 event pairs, 2085 based on Foata normal form. 20/8476 useless extension candidates. Maximal degree in co-relation 22337. Up to 3568 conditions per place. [2023-08-30 08:41:16,673 INFO L137 encePairwiseOnDemand]: 268/277 looper letters, 0 selfloop transitions, 0 changer transitions 92/92 dead transitions. [2023-08-30 08:41:16,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 92 transitions, 457 flow [2023-08-30 08:41:16,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:41:16,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:41:16,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 848 transitions. [2023-08-30 08:41:16,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5102286401925391 [2023-08-30 08:41:16,677 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 848 transitions. [2023-08-30 08:41:16,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 848 transitions. [2023-08-30 08:41:16,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:41:16,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 848 transitions. [2023-08-30 08:41:16,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.33333333333334) internal successors, (848), 6 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:16,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:16,684 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:16,684 INFO L175 Difference]: Start difference. First operand has 53 places, 42 transitions, 193 flow. Second operand 6 states and 848 transitions. [2023-08-30 08:41:16,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 92 transitions, 457 flow [2023-08-30 08:41:16,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 92 transitions, 402 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 08:41:16,818 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2023-08-30 08:41:16,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2023-08-30 08:41:16,819 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2023-08-30 08:41:16,819 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2023-08-30 08:41:16,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:41:16,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 08:41:16,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 08:41:16,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 08:41:16,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 08:41:16,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 08:41:16,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 08:41:16,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 08:41:16,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 08:41:16,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 08:41:16,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 08:41:16,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 08:41:16,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 08:41:16,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 08:41:16,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 08:41:16,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 08:41:16,825 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 08:41:16,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 08:41:16,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 08:41:16,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 08:41:16,826 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 08:41:16,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:41:16,827 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 08:41:16,832 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:41:16,832 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:41:16,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:41:16 BasicIcfg [2023-08-30 08:41:16,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:41:16,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:41:16,836 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:41:16,836 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:41:16,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:41:00" (3/4) ... [2023-08-30 08:41:16,838 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:41:16,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:41:16,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:41:16,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:41:16,843 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 08:41:16,848 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2023-08-30 08:41:16,848 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-30 08:41:16,849 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 08:41:16,849 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:41:16,906 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:41:16,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:41:16,907 INFO L158 Benchmark]: Toolchain (without parser) took 18412.35ms. Allocated memory was 77.6MB in the beginning and 5.5GB in the end (delta: 5.5GB). Free memory was 54.2MB in the beginning and 5.2GB in the end (delta: -5.1GB). Peak memory consumption was 316.3MB. Max. memory is 16.1GB. [2023-08-30 08:41:16,907 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:41:16,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.40ms. Allocated memory is still 77.6MB. Free memory was 53.9MB in the beginning and 48.0MB in the end (delta: 5.9MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2023-08-30 08:41:16,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.91ms. Allocated memory is still 77.6MB. Free memory was 48.0MB in the beginning and 43.9MB in the end (delta: 4.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:41:16,908 INFO L158 Benchmark]: Boogie Preprocessor took 64.80ms. Allocated memory is still 77.6MB. Free memory was 43.9MB in the beginning and 41.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:41:16,910 INFO L158 Benchmark]: RCFGBuilder took 1003.80ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 41.1MB in the beginning and 57.1MB in the end (delta: -16.0MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2023-08-30 08:41:16,911 INFO L158 Benchmark]: TraceAbstraction took 16500.01ms. Allocated memory was 96.5MB in the beginning and 5.5GB in the end (delta: 5.4GB). Free memory was 56.4MB in the beginning and 5.2GB in the end (delta: -5.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2023-08-30 08:41:16,911 INFO L158 Benchmark]: Witness Printer took 71.22ms. Allocated memory is still 5.5GB. Free memory was 5.2GB in the beginning and 5.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:41:16,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.40ms. Allocated memory is still 77.6MB. Free memory was 53.9MB in the beginning and 48.0MB in the end (delta: 5.9MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.91ms. Allocated memory is still 77.6MB. Free memory was 48.0MB in the beginning and 43.9MB in the end (delta: 4.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.80ms. Allocated memory is still 77.6MB. Free memory was 43.9MB in the beginning and 41.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1003.80ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 41.1MB in the beginning and 57.1MB in the end (delta: -16.0MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * TraceAbstraction took 16500.01ms. Allocated memory was 96.5MB in the beginning and 5.5GB in the end (delta: 5.4GB). Free memory was 56.4MB in the beginning and 5.2GB in the end (delta: -5.1GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 71.22ms. Allocated memory is still 5.5GB. Free memory was 5.2GB in the beginning and 5.2GB 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: 5.6s, 163 PlacesBefore, 51 PlacesAfterwards, 152 TransitionsBefore, 39 TransitionsAfterwards, 4146 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 121 TotalNumberOfCompositions, 15999 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4607, independent: 4222, independent conditional: 0, independent unconditional: 4222, dependent: 385, dependent conditional: 0, dependent unconditional: 385, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2096, independent: 2040, independent conditional: 0, independent unconditional: 2040, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4607, independent: 2182, independent conditional: 0, independent unconditional: 2182, dependent: 329, dependent conditional: 0, dependent unconditional: 329, unknown: 2096, unknown conditional: 0, unknown unconditional: 2096] , Statistics on independence cache: Total cache size (in pairs): 270, Positive cache size: 240, Positive conditional cache size: 0, Positive unconditional cache size: 240, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 783]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 829]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 905]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 905]: 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 9 procedures, 201 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 283 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 254 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 396 IncrementalHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 9 mSDtfsCounter, 396 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:41:16,942 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