./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix018_tso.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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/mix018_tso.oepc.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 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:16:19,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:16:19,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:16:19,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:16:19,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:16:19,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:16:19,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:16:19,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:16:19,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:16:19,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:16:19,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:16:19,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:16:19,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:16:19,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:16:19,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:16:19,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:16:19,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:16:19,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:16:19,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:16:19,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:16:19,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:16:19,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:16:19,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:16:19,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:16:19,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:16:19,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:16:19,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:16:19,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:16:19,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:16:19,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:16:19,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:16:19,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:16:19,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:16:19,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:16:19,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:16:19,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:16:19,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:16:19,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:16:19,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:16:19,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:16:19,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:16:19,403 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:16:19,432 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:16:19,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:16:19,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:16:19,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:16:19,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:16:19,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:16:19,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:16:19,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:16:19,437 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:16:19,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:16:19,438 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:16:19,438 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:16:19,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:16:19,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:16:19,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:16:19,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:16:19,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:16:19,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:16:19,439 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:16:19,439 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:16:19,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:16:19,440 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:16:19,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:16:19,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:16:19,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:16:19,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:16:19,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:16:19,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:16:19,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:16:19,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:16:19,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:16:19,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:16:19,442 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:16:19,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:16:19,442 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:16:19,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:16:19,443 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:16:19,443 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:16:19,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:16:19,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:16:19,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:16:19,760 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:16:19,760 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:16:19,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix018_tso.oepc.i [2023-09-01 05:16:20,969 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:16:21,305 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:16:21,306 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix018_tso.oepc.i [2023-09-01 05:16:21,325 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4c28efb2/62c41e5517394c9c89df082a83ca5891/FLAG76f802f59 [2023-09-01 05:16:21,351 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4c28efb2/62c41e5517394c9c89df082a83ca5891 [2023-09-01 05:16:21,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:16:21,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:16:21,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:16:21,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:16:21,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:16:21,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:21,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132931af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21, skipping insertion in model container [2023-09-01 05:16:21,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:21,373 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:16:21,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:16:21,606 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/mix018_tso.oepc.i[949,962] [2023-09-01 05:16:21,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:16:21,842 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:16:21,854 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/mix018_tso.oepc.i[949,962] [2023-09-01 05:16:21,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:16:21,982 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:16:21,983 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:16:21,989 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:16:21,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21 WrapperNode [2023-09-01 05:16:21,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:16:21,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:16:21,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:16:21,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:16:21,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,054 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 164 [2023-09-01 05:16:22,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:16:22,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:16:22,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:16:22,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:16:22,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:16:22,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:16:22,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:16:22,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:16:22,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (1/1) ... [2023-09-01 05:16:22,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:16:22,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:16:22,134 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) [2023-09-01 05:16:22,148 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 [2023-09-01 05:16:22,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:16:22,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:16:22,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:16:22,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:16:22,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:16:22,173 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-09-01 05:16:22,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-09-01 05:16:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-09-01 05:16:22,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-09-01 05:16:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-09-01 05:16:22,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-09-01 05:16:22,174 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-09-01 05:16:22,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-09-01 05:16:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:16:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:16:22,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:16:22,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:16:22,176 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:16:22,295 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:16:22,297 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:16:22,748 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:16:22,917 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:16:22,918 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:16:22,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:16:22 BoogieIcfgContainer [2023-09-01 05:16:22,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:16:22,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:16:22,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:16:22,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:16:22,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:16:21" (1/3) ... [2023-09-01 05:16:22,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543ec368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:16:22, skipping insertion in model container [2023-09-01 05:16:22,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:16:21" (2/3) ... [2023-09-01 05:16:22,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543ec368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:16:22, skipping insertion in model container [2023-09-01 05:16:22,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:16:22" (3/3) ... [2023-09-01 05:16:22,929 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_tso.oepc.i [2023-09-01 05:16:22,937 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:16:22,945 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:16:22,945 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-09-01 05:16:22,945 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:16:23,026 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 05:16:23,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 137 transitions, 294 flow [2023-09-01 05:16:23,138 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2023-09-01 05:16:23,138 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:16:23,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-09-01 05:16:23,145 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 137 transitions, 294 flow [2023-09-01 05:16:23,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 133 transitions, 278 flow [2023-09-01 05:16:23,156 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:16:23,167 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 133 transitions, 278 flow [2023-09-01 05:16:23,169 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 133 transitions, 278 flow [2023-09-01 05:16:23,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 133 transitions, 278 flow [2023-09-01 05:16:23,197 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2023-09-01 05:16:23,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:16:23,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2023-09-01 05:16:23,201 INFO L119 LiptonReduction]: Number of co-enabled transitions 4002 [2023-09-01 05:16:27,321 INFO L134 LiptonReduction]: Checked pairs total: 14332 [2023-09-01 05:16:27,322 INFO L136 LiptonReduction]: Total number of compositions: 103 [2023-09-01 05:16:27,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:16:27,340 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;@5c01fb3e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:16:27,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-09-01 05:16:27,345 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-09-01 05:16:27,345 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:16:27,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:16:27,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:16:27,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:16:27,351 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:16:27,351 INFO L85 PathProgramCache]: Analyzing trace with hash 83054079, now seen corresponding path program 1 times [2023-09-01 05:16:27,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:16:27,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760785644] [2023-09-01 05:16:27,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:16:27,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:16:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:16:27,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:16:27,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:16:27,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760785644] [2023-09-01 05:16:27,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760785644] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:16:27,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:16:27,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-09-01 05:16:27,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810236454] [2023-09-01 05:16:27,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:16:27,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-01 05:16:27,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:16:27,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-01 05:16:27,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-01 05:16:27,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 240 [2023-09-01 05:16:27,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2023-09-01 05:16:27,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:16:27,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 240 [2023-09-01 05:16:27,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:16:29,656 INFO L130 PetriNetUnfolder]: 11371/15912 cut-off events. [2023-09-01 05:16:29,657 INFO L131 PetriNetUnfolder]: For 105/105 co-relation queries the response was YES. [2023-09-01 05:16:29,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32048 conditions, 15912 events. 11371/15912 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 781. Compared 91559 event pairs, 4926 based on Foata normal form. 752/11337 useless extension candidates. Maximal degree in co-relation 32036. Up to 15116 conditions per place. [2023-09-01 05:16:29,787 INFO L137 encePairwiseOnDemand]: 225/240 looper letters, 47 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2023-09-01 05:16:29,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 57 transitions, 239 flow [2023-09-01 05:16:29,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-01 05:16:29,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-09-01 05:16:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2023-09-01 05:16:29,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5458333333333333 [2023-09-01 05:16:29,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2023-09-01 05:16:29,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2023-09-01 05:16:29,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:16:29,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2023-09-01 05:16:29,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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) [2023-09-01 05:16:29,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-09-01 05:16:29,813 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 240.0) internal successors, (960), 4 states have internal predecessors, (960), 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) [2023-09-01 05:16:29,814 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 90 flow. Second operand 3 states and 393 transitions. [2023-09-01 05:16:29,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 57 transitions, 239 flow [2023-09-01 05:16:29,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 57 transitions, 232 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-09-01 05:16:29,826 INFO L231 Difference]: Finished difference. Result has 50 places, 42 transitions, 133 flow [2023-09-01 05:16:29,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=50, PETRI_TRANSITIONS=42} [2023-09-01 05:16:29,831 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -1 predicate places. [2023-09-01 05:16:29,831 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 133 flow [2023-09-01 05:16:29,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 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) [2023-09-01 05:16:29,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:16:29,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:16:29,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:16:29,833 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:16:29,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:16:29,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1794714006, now seen corresponding path program 1 times [2023-09-01 05:16:29,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:16:29,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14157485] [2023-09-01 05:16:29,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:16:29,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:16:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:16:29,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:16:29,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:16:29,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14157485] [2023-09-01 05:16:29,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14157485] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:16:29,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:16:29,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:16:29,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178775325] [2023-09-01 05:16:29,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:16:29,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:16:29,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:16:29,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:16:29,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:16:29,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 240 [2023-09-01 05:16:29,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 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) [2023-09-01 05:16:29,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:16:29,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 240 [2023-09-01 05:16:29,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:16:31,054 INFO L130 PetriNetUnfolder]: 6491/9156 cut-off events. [2023-09-01 05:16:31,054 INFO L131 PetriNetUnfolder]: For 813/813 co-relation queries the response was YES. [2023-09-01 05:16:31,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22452 conditions, 9156 events. 6491/9156 cut-off events. For 813/813 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 50117 event pairs, 2230 based on Foata normal form. 0/7504 useless extension candidates. Maximal degree in co-relation 22441. Up to 8359 conditions per place. [2023-09-01 05:16:31,113 INFO L137 encePairwiseOnDemand]: 231/240 looper letters, 43 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2023-09-01 05:16:31,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 249 flow [2023-09-01 05:16:31,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:16:31,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:16:31,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2023-09-01 05:16:31,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5125 [2023-09-01 05:16:31,117 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 492 transitions. [2023-09-01 05:16:31,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 492 transitions. [2023-09-01 05:16:31,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:16:31,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 492 transitions. [2023-09-01 05:16:31,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 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) [2023-09-01 05:16:31,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-09-01 05:16:31,122 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-09-01 05:16:31,122 INFO L175 Difference]: Start difference. First operand has 50 places, 42 transitions, 133 flow. Second operand 4 states and 492 transitions. [2023-09-01 05:16:31,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 249 flow [2023-09-01 05:16:31,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 244 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:16:31,125 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 122 flow [2023-09-01 05:16:31,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2023-09-01 05:16:31,126 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2023-09-01 05:16:31,126 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 122 flow [2023-09-01 05:16:31,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 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) [2023-09-01 05:16:31,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:16:31,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:16:31,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:16:31,127 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:16:31,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:16:31,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1794714007, now seen corresponding path program 1 times [2023-09-01 05:16:31,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:16:31,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118720314] [2023-09-01 05:16:31,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:16:31,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:16:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:16:31,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:16:31,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:16:31,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118720314] [2023-09-01 05:16:31,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118720314] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:16:31,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:16:31,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:16:31,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921239959] [2023-09-01 05:16:31,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:16:31,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:16:31,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:16:31,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:16:31,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:16:31,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 240 [2023-09-01 05:16:31,249 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 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) [2023-09-01 05:16:31,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:16:31,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 240 [2023-09-01 05:16:31,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:16:31,780 INFO L130 PetriNetUnfolder]: 2591/3890 cut-off events. [2023-09-01 05:16:31,781 INFO L131 PetriNetUnfolder]: For 905/905 co-relation queries the response was YES. [2023-09-01 05:16:31,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9467 conditions, 3890 events. 2591/3890 cut-off events. For 905/905 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 20202 event pairs, 790 based on Foata normal form. 108/3602 useless extension candidates. Maximal degree in co-relation 9455. Up to 2122 conditions per place. [2023-09-01 05:16:31,801 INFO L137 encePairwiseOnDemand]: 230/240 looper letters, 56 selfloop transitions, 9 changer transitions 0/70 dead transitions. [2023-09-01 05:16:31,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 70 transitions, 334 flow [2023-09-01 05:16:31,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:16:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:16:31,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 510 transitions. [2023-09-01 05:16:31,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53125 [2023-09-01 05:16:31,804 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 510 transitions. [2023-09-01 05:16:31,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 510 transitions. [2023-09-01 05:16:31,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:16:31,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 510 transitions. [2023-09-01 05:16:31,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.5) internal successors, (510), 4 states have internal predecessors, (510), 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) [2023-09-01 05:16:31,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-09-01 05:16:31,809 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2023-09-01 05:16:31,809 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 122 flow. Second operand 4 states and 510 transitions. [2023-09-01 05:16:31,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 70 transitions, 334 flow [2023-09-01 05:16:31,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 70 transitions, 328 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:16:31,811 INFO L231 Difference]: Finished difference. Result has 50 places, 42 transitions, 176 flow [2023-09-01 05:16:31,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=116, 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=176, PETRI_PLACES=50, PETRI_TRANSITIONS=42} [2023-09-01 05:16:31,812 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -1 predicate places. [2023-09-01 05:16:31,813 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 42 transitions, 176 flow [2023-09-01 05:16:31,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.5) internal successors, (450), 4 states have internal predecessors, (450), 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) [2023-09-01 05:16:31,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:16:31,813 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:16:31,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:16:31,814 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:16:31,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:16:31,814 INFO L85 PathProgramCache]: Analyzing trace with hash 95723371, now seen corresponding path program 1 times [2023-09-01 05:16:31,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:16:31,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139774445] [2023-09-01 05:16:31,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:16:31,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:16:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:16:31,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:16:31,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:16:31,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139774445] [2023-09-01 05:16:31,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139774445] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:16:31,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:16:31,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:16:31,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22788361] [2023-09-01 05:16:31,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:16:31,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:16:31,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:16:31,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:16:31,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:16:31,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 240 [2023-09-01 05:16:31,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 42 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 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) [2023-09-01 05:16:31,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:16:31,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 240 [2023-09-01 05:16:31,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:16:32,316 INFO L130 PetriNetUnfolder]: 1691/2516 cut-off events. [2023-09-01 05:16:32,317 INFO L131 PetriNetUnfolder]: For 1617/1617 co-relation queries the response was YES. [2023-09-01 05:16:32,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7047 conditions, 2516 events. 1691/2516 cut-off events. For 1617/1617 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 12207 event pairs, 508 based on Foata normal form. 54/2468 useless extension candidates. Maximal degree in co-relation 7034. Up to 972 conditions per place. [2023-09-01 05:16:32,334 INFO L137 encePairwiseOnDemand]: 230/240 looper letters, 63 selfloop transitions, 13 changer transitions 4/85 dead transitions. [2023-09-01 05:16:32,338 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 85 transitions, 450 flow [2023-09-01 05:16:32,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:16:32,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:16:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 635 transitions. [2023-09-01 05:16:32,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291666666666667 [2023-09-01 05:16:32,342 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 635 transitions. [2023-09-01 05:16:32,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 635 transitions. [2023-09-01 05:16:32,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:16:32,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 635 transitions. [2023-09-01 05:16:32,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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) [2023-09-01 05:16:32,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-09-01 05:16:32,348 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 240.0) internal successors, (1440), 6 states have internal predecessors, (1440), 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) [2023-09-01 05:16:32,348 INFO L175 Difference]: Start difference. First operand has 50 places, 42 transitions, 176 flow. Second operand 5 states and 635 transitions. [2023-09-01 05:16:32,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 85 transitions, 450 flow [2023-09-01 05:16:32,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 85 transitions, 432 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-09-01 05:16:32,357 INFO L231 Difference]: Finished difference. Result has 53 places, 42 transitions, 202 flow [2023-09-01 05:16:32,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=158, 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=202, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2023-09-01 05:16:32,359 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 2 predicate places. [2023-09-01 05:16:32,359 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 202 flow [2023-09-01 05:16:32,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 113.0) internal successors, (565), 5 states have internal predecessors, (565), 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) [2023-09-01 05:16:32,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:16:32,360 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] [2023-09-01 05:16:32,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:16:32,361 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-09-01 05:16:32,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:16:32,361 INFO L85 PathProgramCache]: Analyzing trace with hash 81562642, now seen corresponding path program 1 times [2023-09-01 05:16:32,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:16:32,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133787714] [2023-09-01 05:16:32,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:16:32,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:16:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:16:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:16:32,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:16:32,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133787714] [2023-09-01 05:16:32,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133787714] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:16:32,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:16:32,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:16:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573165361] [2023-09-01 05:16:32,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:16:32,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:16:32,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:16:32,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:16:32,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:16:32,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 240 [2023-09-01 05:16:32,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 113.33333333333333) internal successors, (680), 6 states have internal predecessors, (680), 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) [2023-09-01 05:16:32,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:16:32,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 240 [2023-09-01 05:16:32,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:16:32,886 INFO L130 PetriNetUnfolder]: 1616/2363 cut-off events. [2023-09-01 05:16:32,886 INFO L131 PetriNetUnfolder]: For 1915/1915 co-relation queries the response was YES. [2023-09-01 05:16:32,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6796 conditions, 2363 events. 1616/2363 cut-off events. For 1915/1915 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11407 event pairs, 488 based on Foata normal form. 20/2305 useless extension candidates. Maximal degree in co-relation 6782. Up to 972 conditions per place. [2023-09-01 05:16:32,893 INFO L137 encePairwiseOnDemand]: 230/240 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2023-09-01 05:16:32,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 73 transitions, 382 flow [2023-09-01 05:16:32,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:16:32,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:16:32,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 733 transitions. [2023-09-01 05:16:32,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5090277777777777 [2023-09-01 05:16:32,896 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 733 transitions. [2023-09-01 05:16:32,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 733 transitions. [2023-09-01 05:16:32,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:16:32,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 733 transitions. [2023-09-01 05:16:32,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.16666666666667) internal successors, (733), 6 states have internal predecessors, (733), 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) [2023-09-01 05:16:32,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-09-01 05:16:32,902 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 240.0) internal successors, (1680), 7 states have internal predecessors, (1680), 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) [2023-09-01 05:16:32,902 INFO L175 Difference]: Start difference. First operand has 53 places, 42 transitions, 202 flow. Second operand 6 states and 733 transitions. [2023-09-01 05:16:32,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 73 transitions, 382 flow [2023-09-01 05:16:32,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 73 transitions, 327 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-09-01 05:16:32,933 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2023-09-01 05:16:32,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=240, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2023-09-01 05:16:32,933 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -7 predicate places. [2023-09-01 05:16:32,934 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2023-09-01 05:16:32,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.33333333333333) internal successors, (680), 6 states have internal predecessors, (680), 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) [2023-09-01 05:16:32,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-09-01 05:16:32,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-09-01 05:16:32,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-09-01 05:16:32,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-09-01 05:16:32,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-09-01 05:16:32,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-09-01 05:16:32,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-09-01 05:16:32,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-09-01 05:16:32,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-09-01 05:16:32,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-09-01 05:16:32,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-09-01 05:16:32,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-09-01 05:16:32,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-09-01 05:16:32,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-09-01 05:16:32,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-09-01 05:16:32,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-09-01 05:16:32,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-09-01 05:16:32,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-09-01 05:16:32,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-09-01 05:16:32,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-09-01 05:16:32,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:16:32,941 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-09-01 05:16:32,948 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:16:32,948 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:16:32,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:16:32 BasicIcfg [2023-09-01 05:16:32,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:16:32,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:16:32,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:16:32,952 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:16:32,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:16:22" (3/4) ... [2023-09-01 05:16:32,954 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:16:32,958 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-09-01 05:16:32,958 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-09-01 05:16:32,958 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-09-01 05:16:32,958 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-09-01 05:16:32,964 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2023-09-01 05:16:32,964 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-09-01 05:16:32,964 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-09-01 05:16:32,965 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:16:33,000 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:16:33,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:16:33,001 INFO L158 Benchmark]: Toolchain (without parser) took 11643.87ms. Allocated memory was 79.7MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 56.7MB in the beginning and 889.5MB in the end (delta: -832.8MB). Peak memory consumption was 241.0MB. Max. memory is 16.1GB. [2023-09-01 05:16:33,001 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:16:33,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 630.03ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 52.5MB in the end (delta: 4.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-09-01 05:16:33,001 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.34ms. Allocated memory is still 79.7MB. Free memory was 52.1MB in the beginning and 49.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:16:33,002 INFO L158 Benchmark]: Boogie Preprocessor took 34.53ms. Allocated memory is still 79.7MB. Free memory was 49.3MB in the beginning and 47.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:16:33,002 INFO L158 Benchmark]: RCFGBuilder took 830.57ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 47.6MB in the beginning and 71.4MB in the end (delta: -23.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2023-09-01 05:16:33,002 INFO L158 Benchmark]: TraceAbstraction took 10028.13ms. Allocated memory was 98.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 71.2MB in the beginning and 892.7MB in the end (delta: -821.5MB). Peak memory consumption was 552.2MB. Max. memory is 16.1GB. [2023-09-01 05:16:33,003 INFO L158 Benchmark]: Witness Printer took 48.69ms. Allocated memory is still 1.2GB. Free memory was 892.7MB in the beginning and 889.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:16:33,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 630.03ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 52.5MB in the end (delta: 4.0MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.34ms. Allocated memory is still 79.7MB. Free memory was 52.1MB in the beginning and 49.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.53ms. Allocated memory is still 79.7MB. Free memory was 49.3MB in the beginning and 47.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 830.57ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 47.6MB in the beginning and 71.4MB in the end (delta: -23.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 10028.13ms. Allocated memory was 98.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 71.2MB in the beginning and 892.7MB in the end (delta: -821.5MB). Peak memory consumption was 552.2MB. Max. memory is 16.1GB. * Witness Printer took 48.69ms. Allocated memory is still 1.2GB. Free memory was 892.7MB in the beginning and 889.5MB 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: 4.2s, 144 PlacesBefore, 51 PlacesAfterwards, 133 TransitionsBefore, 39 TransitionsAfterwards, 4002 CoEnabledTransitionPairs, 6 FixpointIterations, 43 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 103 TotalNumberOfCompositions, 14332 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4147, independent: 3816, independent conditional: 0, independent unconditional: 3816, dependent: 331, dependent conditional: 0, dependent unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2083, independent: 2013, independent conditional: 0, independent unconditional: 2013, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4147, independent: 1803, independent conditional: 0, independent unconditional: 1803, dependent: 261, dependent conditional: 0, dependent unconditional: 261, unknown: 2083, unknown conditional: 0, unknown unconditional: 2083] , Statistics on independence cache: Total cache size (in pairs): 298, Positive cache size: 267, Positive conditional cache size: 0, Positive unconditional cache size: 267, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 765]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 815]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: 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, 181 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: 9.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 248 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 429 IncrementalHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 13 mSDtfsCounter, 429 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=202occurred 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, 0.6s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 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! [2023-09-01 05:16:33,031 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