./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix039.opt.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/mix039.opt.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 4df22382a468f75ea1bc6624bacd8789c0b9b9f8aa1bc2866cf2715dcbc507bc --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 12:59:58,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 12:59:58,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 12:59:58,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 12:59:58,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 12:59:58,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 12:59:58,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 12:59:58,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 12:59:58,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 12:59:58,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 12:59:58,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 12:59:58,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 12:59:58,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 12:59:58,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 12:59:58,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 12:59:58,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 12:59:58,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 12:59:58,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 12:59:58,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 12:59:58,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 12:59:58,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 12:59:58,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 12:59:58,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 12:59:58,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 12:59:58,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 12:59:58,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 12:59:58,417 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 12:59:58,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 12:59:58,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 12:59:58,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 12:59:58,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 12:59:58,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 12:59:58,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 12:59:58,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 12:59:58,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 12:59:58,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 12:59:58,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 12:59:58,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 12:59:58,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 12:59:58,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 12:59:58,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 12:59:58,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 12:59:58,450 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 12:59:58,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 12:59:58,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 12:59:58,451 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 12:59:58,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 12:59:58,452 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 12:59:58,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 12:59:58,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 12:59:58,453 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 12:59:58,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 12:59:58,453 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 12:59:58,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 12:59:58,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 12:59:58,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 12:59:58,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 12:59:58,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 12:59:58,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 12:59:58,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 12:59:58,455 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 12:59:58,455 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 12:59:58,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 12:59:58,455 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 12:59:58,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 12:59:58,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 12:59:58,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 12:59:58,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 12:59:58,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 12:59:58,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 12:59:58,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 12:59:58,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 12:59:58,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 12:59:58,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 12:59:58,457 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 12:59:58,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 12:59:58,457 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 12:59:58,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 12:59:58,457 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 12:59:58,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4df22382a468f75ea1bc6624bacd8789c0b9b9f8aa1bc2866cf2715dcbc507bc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 12:59:58,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 12:59:58,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 12:59:58,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 12:59:58,712 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 12:59:58,713 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 12:59:58,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix039.opt.i [2023-08-30 12:59:59,667 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 12:59:59,850 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 12:59:59,851 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix039.opt.i [2023-08-30 12:59:59,860 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d892c7e3f/a0f97d0a6d834ea0aed97ce5cdeba5b6/FLAGe28e96173 [2023-08-30 12:59:59,873 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d892c7e3f/a0f97d0a6d834ea0aed97ce5cdeba5b6 [2023-08-30 12:59:59,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 12:59:59,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 12:59:59,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 12:59:59,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 12:59:59,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 12:59:59,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:59:59" (1/1) ... [2023-08-30 12:59:59,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49227c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 12:59:59, skipping insertion in model container [2023-08-30 12:59:59,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 12:59:59" (1/1) ... [2023-08-30 12:59:59,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 12:59:59,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:00:00,031 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/mix039.opt.i[944,957] [2023-08-30 13:00:00,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:00:00,149 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:00:00,162 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/mix039.opt.i[944,957] [2023-08-30 13:00:00,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:00:00,250 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:00:00,250 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:00:00,254 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:00:00,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00 WrapperNode [2023-08-30 13:00:00,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:00:00,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:00:00,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:00:00,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:00:00,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,307 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2023-08-30 13:00:00,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:00:00,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:00:00,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:00:00,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:00:00,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,337 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:00:00,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:00:00,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:00:00,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:00:00,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (1/1) ... [2023-08-30 13:00:00,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:00:00,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:00:00,373 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 13:00:00,398 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 13:00:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:00:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:00:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:00:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:00:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:00:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:00:00,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:00:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:00:00,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:00:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:00:00,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:00:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 13:00:00,405 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 13:00:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:00:00,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:00:00,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:00:00,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:00:00,407 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 13:00:00,530 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:00:00,531 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:00:00,734 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:00:00,862 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:00:00,862 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:00:00,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:00 BoogieIcfgContainer [2023-08-30 13:00:00,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:00:00,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:00:00,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:00:00,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:00:00,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 12:59:59" (1/3) ... [2023-08-30 13:00:00,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158236a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:00:00, skipping insertion in model container [2023-08-30 13:00:00,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:00" (2/3) ... [2023-08-30 13:00:00,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158236a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:00:00, skipping insertion in model container [2023-08-30 13:00:00,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:00" (3/3) ... [2023-08-30 13:00:00,869 INFO L112 eAbstractionObserver]: Analyzing ICFG mix039.opt.i [2023-08-30 13:00:00,889 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:00:00,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:00:00,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 13:00:00,896 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:00:00,976 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:00:00,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2023-08-30 13:00:01,062 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2023-08-30 13:00:01,062 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:01,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-08-30 13:00:01,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2023-08-30 13:00:01,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2023-08-30 13:00:01,079 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:00:01,096 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 132 transitions, 276 flow [2023-08-30 13:00:01,102 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 132 transitions, 276 flow [2023-08-30 13:00:01,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 132 transitions, 276 flow [2023-08-30 13:00:01,146 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2023-08-30 13:00:01,148 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:01,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-08-30 13:00:01,151 INFO L119 LiptonReduction]: Number of co-enabled transitions 3684 [2023-08-30 13:00:04,452 INFO L134 LiptonReduction]: Checked pairs total: 11371 [2023-08-30 13:00:04,453 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-08-30 13:00:04,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:00:04,471 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;@779e0e8f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:00:04,471 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 13:00:04,475 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 13:00:04,475 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:04,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:04,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:00:04,477 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 13:00:04,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:04,480 INFO L85 PathProgramCache]: Analyzing trace with hash 532045978, now seen corresponding path program 1 times [2023-08-30 13:00:04,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:04,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459314589] [2023-08-30 13:00:04,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:04,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:04,691 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 13:00:04,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:04,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459314589] [2023-08-30 13:00:04,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459314589] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:04,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:04,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:00:04,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610543533] [2023-08-30 13:00:04,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:04,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:00:04,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:04,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:00:04,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:00:04,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-08-30 13:00:04,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 13:00:04,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:04,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-08-30 13:00:04,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:05,422 INFO L130 PetriNetUnfolder]: 6649/9345 cut-off events. [2023-08-30 13:00:05,422 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2023-08-30 13:00:05,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18867 conditions, 9345 events. 6649/9345 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 52718 event pairs, 1861 based on Foata normal form. 0/6574 useless extension candidates. Maximal degree in co-relation 18855. Up to 8623 conditions per place. [2023-08-30 13:00:05,460 INFO L137 encePairwiseOnDemand]: 228/241 looper letters, 45 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2023-08-30 13:00:05,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 227 flow [2023-08-30 13:00:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:00:05,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:00:05,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2023-08-30 13:00:05,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5449515905947441 [2023-08-30 13:00:05,470 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2023-08-30 13:00:05,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2023-08-30 13:00:05,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:05,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2023-08-30 13:00:05,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 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 13:00:05,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 13:00:05,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 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 13:00:05,479 INFO L175 Difference]: Start difference. First operand has 46 places, 33 transitions, 78 flow. Second operand 3 states and 394 transitions. [2023-08-30 13:00:05,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 227 flow [2023-08-30 13:00:05,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 13:00:05,483 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 121 flow [2023-08-30 13:00:05,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-08-30 13:00:05,487 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-08-30 13:00:05,487 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 121 flow [2023-08-30 13:00:05,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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 13:00:05,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:05,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:05,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:00:05,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 13:00:05,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:05,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2028457021, now seen corresponding path program 1 times [2023-08-30 13:00:05,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:05,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963968453] [2023-08-30 13:00:05,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:05,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:05,548 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 13:00:05,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:05,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963968453] [2023-08-30 13:00:05,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963968453] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:05,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:05,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:00:05,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984689936] [2023-08-30 13:00:05,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:05,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:00:05,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:05,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:00:05,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:00:05,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-08-30 13:00:05,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 13:00:05,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:05,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-08-30 13:00:05,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:05,997 INFO L130 PetriNetUnfolder]: 3813/5373 cut-off events. [2023-08-30 13:00:05,997 INFO L131 PetriNetUnfolder]: For 314/314 co-relation queries the response was YES. [2023-08-30 13:00:06,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13378 conditions, 5373 events. 3813/5373 cut-off events. For 314/314 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 27096 event pairs, 909 based on Foata normal form. 0/4448 useless extension candidates. Maximal degree in co-relation 13367. Up to 4650 conditions per place. [2023-08-30 13:00:06,018 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 41 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2023-08-30 13:00:06,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 235 flow [2023-08-30 13:00:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:00:06,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:00:06,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 498 transitions. [2023-08-30 13:00:06,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.516597510373444 [2023-08-30 13:00:06,022 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 498 transitions. [2023-08-30 13:00:06,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 498 transitions. [2023-08-30 13:00:06,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:06,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 498 transitions. [2023-08-30 13:00:06,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 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 13:00:06,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 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 13:00:06,025 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 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 13:00:06,025 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 121 flow. Second operand 4 states and 498 transitions. [2023-08-30 13:00:06,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 235 flow [2023-08-30 13:00:06,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 49 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:00:06,027 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 110 flow [2023-08-30 13:00:06,027 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2023-08-30 13:00:06,028 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2023-08-30 13:00:06,028 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 110 flow [2023-08-30 13:00:06,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 13:00:06,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:06,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:06,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:00:06,029 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 13:00:06,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:06,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2028457020, now seen corresponding path program 1 times [2023-08-30 13:00:06,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:06,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348279040] [2023-08-30 13:00:06,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:06,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:06,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:06,071 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 13:00:06,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:06,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348279040] [2023-08-30 13:00:06,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348279040] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:06,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:06,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:00:06,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314069153] [2023-08-30 13:00:06,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:06,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:00:06,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:06,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:00:06,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:00:06,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-08-30 13:00:06,081 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 13:00:06,081 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:06,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-08-30 13:00:06,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:06,451 INFO L130 PetriNetUnfolder]: 2366/3388 cut-off events. [2023-08-30 13:00:06,452 INFO L131 PetriNetUnfolder]: For 974/974 co-relation queries the response was YES. [2023-08-30 13:00:06,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8339 conditions, 3388 events. 2366/3388 cut-off events. For 974/974 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 15719 event pairs, 511 based on Foata normal form. 0/3171 useless extension candidates. Maximal degree in co-relation 8327. Up to 1450 conditions per place. [2023-08-30 13:00:06,462 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 55 selfloop transitions, 9 changer transitions 0/67 dead transitions. [2023-08-30 13:00:06,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 67 transitions, 324 flow [2023-08-30 13:00:06,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:00:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:00:06,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2023-08-30 13:00:06,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5352697095435685 [2023-08-30 13:00:06,464 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 516 transitions. [2023-08-30 13:00:06,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 516 transitions. [2023-08-30 13:00:06,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:06,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 516 transitions. [2023-08-30 13:00:06,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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 13:00:06,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 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 13:00:06,467 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 241.0) internal successors, (1205), 5 states have internal predecessors, (1205), 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 13:00:06,467 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 110 flow. Second operand 4 states and 516 transitions. [2023-08-30 13:00:06,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 67 transitions, 324 flow [2023-08-30 13:00:06,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 67 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:00:06,469 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 162 flow [2023-08-30 13:00:06,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2023-08-30 13:00:06,470 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-08-30 13:00:06,470 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 162 flow [2023-08-30 13:00:06,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 13:00:06,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:06,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:06,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:00:06,471 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 13:00:06,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:06,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1521751769, now seen corresponding path program 1 times [2023-08-30 13:00:06,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:06,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762463552] [2023-08-30 13:00:06,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:06,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:06,554 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 13:00:06,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:06,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762463552] [2023-08-30 13:00:06,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762463552] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:06,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:06,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:00:06,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556149226] [2023-08-30 13:00:06,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:06,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:00:06,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:06,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:00:06,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:00:06,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-08-30 13:00:06,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 13:00:06,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:06,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-08-30 13:00:06,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:06,858 INFO L130 PetriNetUnfolder]: 2087/2947 cut-off events. [2023-08-30 13:00:06,859 INFO L131 PetriNetUnfolder]: For 1980/1980 co-relation queries the response was YES. [2023-08-30 13:00:06,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8502 conditions, 2947 events. 2087/2947 cut-off events. For 1980/1980 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 13089 event pairs, 467 based on Foata normal form. 0/2916 useless extension candidates. Maximal degree in co-relation 8489. Up to 1216 conditions per place. [2023-08-30 13:00:06,873 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 63 selfloop transitions, 13 changer transitions 4/83 dead transitions. [2023-08-30 13:00:06,875 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 83 transitions, 442 flow [2023-08-30 13:00:06,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:00:06,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:00:06,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 644 transitions. [2023-08-30 13:00:06,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5344398340248963 [2023-08-30 13:00:06,878 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 644 transitions. [2023-08-30 13:00:06,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 644 transitions. [2023-08-30 13:00:06,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:06,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 644 transitions. [2023-08-30 13:00:06,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 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 13:00:06,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 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 13:00:06,882 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 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 13:00:06,882 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 162 flow. Second operand 5 states and 644 transitions. [2023-08-30 13:00:06,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 83 transitions, 442 flow [2023-08-30 13:00:06,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 83 transitions, 424 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 13:00:06,886 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 186 flow [2023-08-30 13:00:06,886 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-08-30 13:00:06,887 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2023-08-30 13:00:06,887 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 186 flow [2023-08-30 13:00:06,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 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 13:00:06,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:06,888 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] [2023-08-30 13:00:06,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:00:06,888 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 13:00:06,888 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:06,888 INFO L85 PathProgramCache]: Analyzing trace with hash -2146395103, now seen corresponding path program 1 times [2023-08-30 13:00:06,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:06,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662010436] [2023-08-30 13:00:06,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:06,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:06,980 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 13:00:06,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:06,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662010436] [2023-08-30 13:00:06,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662010436] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:06,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:06,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:00:06,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757233707] [2023-08-30 13:00:06,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:06,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:00:06,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:06,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:00:06,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:00:06,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 241 [2023-08-30 13:00:06,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 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 13:00:06,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:06,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 241 [2023-08-30 13:00:06,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:07,257 INFO L130 PetriNetUnfolder]: 2060/2900 cut-off events. [2023-08-30 13:00:07,257 INFO L131 PetriNetUnfolder]: For 2502/2502 co-relation queries the response was YES. [2023-08-30 13:00:07,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8583 conditions, 2900 events. 2060/2900 cut-off events. For 2502/2502 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 12891 event pairs, 467 based on Foata normal form. 16/2901 useless extension candidates. Maximal degree in co-relation 8569. Up to 1216 conditions per place. [2023-08-30 13:00:07,262 INFO L137 encePairwiseOnDemand]: 232/241 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2023-08-30 13:00:07,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 75 transitions, 394 flow [2023-08-30 13:00:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:00:07,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:00:07,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 748 transitions. [2023-08-30 13:00:07,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5172890733056709 [2023-08-30 13:00:07,264 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 748 transitions. [2023-08-30 13:00:07,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 748 transitions. [2023-08-30 13:00:07,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:07,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 748 transitions. [2023-08-30 13:00:07,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.66666666666667) internal successors, (748), 6 states have internal predecessors, (748), 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 13:00:07,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 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 13:00:07,268 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 241.0) internal successors, (1687), 7 states have internal predecessors, (1687), 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 13:00:07,269 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 186 flow. Second operand 6 states and 748 transitions. [2023-08-30 13:00:07,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 75 transitions, 394 flow [2023-08-30 13:00:07,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 75 transitions, 339 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 13:00:07,302 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-08-30 13:00:07,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=241, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-08-30 13:00:07,303 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2023-08-30 13:00:07,303 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-08-30 13:00:07,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.16666666666667) internal successors, (691), 6 states have internal predecessors, (691), 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 13:00:07,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 13:00:07,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 13:00:07,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 13:00:07,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 13:00:07,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 13:00:07,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 13:00:07,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 13:00:07,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 13:00:07,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 13:00:07,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 13:00:07,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 13:00:07,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 13:00:07,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 13:00:07,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 13:00:07,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 13:00:07,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 13:00:07,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 13:00:07,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 13:00:07,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 13:00:07,308 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 13:00:07,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:00:07,308 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 13:00:07,311 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:00:07,312 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:00:07,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:00:07 BasicIcfg [2023-08-30 13:00:07,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:00:07,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:00:07,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:00:07,314 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:00:07,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:00" (3/4) ... [2023-08-30 13:00:07,316 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:00:07,319 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:00:07,319 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:00:07,319 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:00:07,319 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 13:00:07,322 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-08-30 13:00:07,322 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 13:00:07,323 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:00:07,323 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:00:07,345 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:00:07,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:00:07,345 INFO L158 Benchmark]: Toolchain (without parser) took 7469.85ms. Allocated memory was 77.6MB in the beginning and 448.8MB in the end (delta: 371.2MB). Free memory was 53.6MB in the beginning and 302.8MB in the end (delta: -249.2MB). Peak memory consumption was 122.3MB. Max. memory is 16.1GB. [2023-08-30 13:00:07,346 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 77.6MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:00:07,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.15ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 53.4MB in the beginning and 77.7MB in the end (delta: -24.3MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-08-30 13:00:07,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.40ms. Allocated memory is still 102.8MB. Free memory was 77.7MB in the beginning and 75.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:00:07,346 INFO L158 Benchmark]: Boogie Preprocessor took 36.25ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:00:07,347 INFO L158 Benchmark]: RCFGBuilder took 519.29ms. Allocated memory is still 102.8MB. Free memory was 73.2MB in the beginning and 67.7MB in the end (delta: 5.6MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2023-08-30 13:00:07,347 INFO L158 Benchmark]: TraceAbstraction took 6448.57ms. Allocated memory was 102.8MB in the beginning and 448.8MB in the end (delta: 346.0MB). Free memory was 67.1MB in the beginning and 306.0MB in the end (delta: -238.9MB). Peak memory consumption was 319.5MB. Max. memory is 16.1GB. [2023-08-30 13:00:07,347 INFO L158 Benchmark]: Witness Printer took 30.98ms. Allocated memory is still 448.8MB. Free memory was 306.0MB in the beginning and 302.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:00:07,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 77.6MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.15ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 53.4MB in the beginning and 77.7MB in the end (delta: -24.3MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.40ms. Allocated memory is still 102.8MB. Free memory was 77.7MB in the beginning and 75.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.25ms. Allocated memory is still 102.8MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 519.29ms. Allocated memory is still 102.8MB. Free memory was 73.2MB in the beginning and 67.7MB in the end (delta: 5.6MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6448.57ms. Allocated memory was 102.8MB in the beginning and 448.8MB in the end (delta: 346.0MB). Free memory was 67.1MB in the beginning and 306.0MB in the end (delta: -238.9MB). Peak memory consumption was 319.5MB. Max. memory is 16.1GB. * Witness Printer took 30.98ms. Allocated memory is still 448.8MB. Free memory was 306.0MB in the beginning and 302.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 143 PlacesBefore, 46 PlacesAfterwards, 132 TransitionsBefore, 33 TransitionsAfterwards, 3684 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 105 TotalNumberOfCompositions, 11371 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5103, independent: 4800, independent conditional: 0, independent unconditional: 4800, dependent: 303, dependent conditional: 0, dependent unconditional: 303, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1927, independent: 1867, independent conditional: 0, independent unconditional: 1867, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5103, independent: 2933, independent conditional: 0, independent unconditional: 2933, dependent: 243, dependent conditional: 0, dependent unconditional: 243, unknown: 1927, unknown conditional: 0, unknown unconditional: 1927] , Statistics on independence cache: Total cache size (in pairs): 228, Positive cache size: 204, Positive conditional cache size: 0, Positive unconditional cache size: 204, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 805]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 841]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 841]: 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, 178 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: 6.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 266 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 405 IncrementalHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 7 mSDtfsCounter, 405 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 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 13:00:07,368 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