./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix043.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/mix043.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 8b566ddb7b309d9ba7ea7e298fcc3be9218751e5387d333007519a12118bc5db --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 13:00:18,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:00:18,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:00:18,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:00:18,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:00:18,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:00:18,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:00:18,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:00:18,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:00:18,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:00:18,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:00:18,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:00:18,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:00:18,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:00:18,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:00:18,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:00:18,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:00:18,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:00:18,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:00:18,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:00:18,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:00:18,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:00:18,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:00:18,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:00:18,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:00:18,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:00:18,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:00:18,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:00:18,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:00:18,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:00:18,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:00:18,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:00:18,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:00:18,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:00:18,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:00:18,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:00:18,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:00:18,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:00:18,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:00:18,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:00:18,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:00:18,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:00:18,526 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:00:18,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:00:18,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:00:18,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:00:18,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:00:18,528 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:00:18,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:00:18,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:00:18,529 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:00:18,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:00:18,530 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:00:18,530 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:00:18,531 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:00:18,531 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:00:18,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:00:18,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:00:18,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:00:18,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:00:18,532 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:00:18,532 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:00:18,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:00:18,532 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:00:18,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:00:18,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:00:18,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:00:18,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:00:18,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:00:18,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:00:18,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:00:18,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:00:18,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:00:18,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:00:18,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:00:18,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:00:18,535 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:00:18,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:00:18,535 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:00:18,535 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b566ddb7b309d9ba7ea7e298fcc3be9218751e5387d333007519a12118bc5db Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:00:18,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:00:18,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:00:18,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:00:18,872 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:00:18,874 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:00:18,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix043.opt.i [2023-08-30 13:00:19,979 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:00:20,246 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:00:20,246 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix043.opt.i [2023-08-30 13:00:20,278 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff4ab9367/673733c339714a0cacb75218d5e4e06c/FLAGf3f972d0a [2023-08-30 13:00:20,290 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff4ab9367/673733c339714a0cacb75218d5e4e06c [2023-08-30 13:00:20,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:00:20,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:00:20,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:00:20,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:00:20,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:00:20,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b235ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20, skipping insertion in model container [2023-08-30 13:00:20,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:00:20,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:00:20,468 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/mix043.opt.i[944,957] [2023-08-30 13:00:20,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:00:20,674 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:00:20,686 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/mix043.opt.i[944,957] [2023-08-30 13:00:20,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:00:20,838 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:00:20,848 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:00:20,854 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:00:20,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20 WrapperNode [2023-08-30 13:00:20,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:00:20,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:00:20,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:00:20,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:00:20,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,930 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2023-08-30 13:00:20,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:00:20,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:00:20,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:00:20,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:00:20,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,979 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:00:20,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:00:20,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:00:20,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:00:20,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (1/1) ... [2023-08-30 13:00:20,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:00:21,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:00:21,014 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 13:00:21,032 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 13:00:21,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:00:21,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:00:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:00:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:00:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:00:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:00:21,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:00:21,061 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:00:21,061 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:00:21,062 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:00:21,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:00:21,062 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 13:00:21,062 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 13:00:21,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:00:21,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:00:21,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:00:21,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:00:21,064 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 13:00:21,255 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:00:21,256 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:00:21,563 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:00:21,708 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:00:21,708 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:00:21,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:21 BoogieIcfgContainer [2023-08-30 13:00:21,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:00:21,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:00:21,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:00:21,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:00:21,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:00:20" (1/3) ... [2023-08-30 13:00:21,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39969a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:00:21, skipping insertion in model container [2023-08-30 13:00:21,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:20" (2/3) ... [2023-08-30 13:00:21,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39969a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:00:21, skipping insertion in model container [2023-08-30 13:00:21,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:21" (3/3) ... [2023-08-30 13:00:21,717 INFO L112 eAbstractionObserver]: Analyzing ICFG mix043.opt.i [2023-08-30 13:00:21,723 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:00:21,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:00:21,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 13:00:21,732 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:00:21,812 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:00:21,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 137 transitions, 294 flow [2023-08-30 13:00:21,916 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2023-08-30 13:00:21,917 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:21,923 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 5. Compared 91 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 13:00:21,924 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 137 transitions, 294 flow [2023-08-30 13:00:21,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 133 transitions, 278 flow [2023-08-30 13:00:21,932 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:00:21,939 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 133 transitions, 278 flow [2023-08-30 13:00:21,942 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 133 transitions, 278 flow [2023-08-30 13:00:21,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 133 transitions, 278 flow [2023-08-30 13:00:21,965 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2023-08-30 13:00:21,966 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:21,967 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 5. Compared 92 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 13:00:21,969 INFO L119 LiptonReduction]: Number of co-enabled transitions 3812 [2023-08-30 13:00:25,979 INFO L134 LiptonReduction]: Checked pairs total: 13185 [2023-08-30 13:00:25,979 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-08-30 13:00:25,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:00:25,996 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;@4dcacda6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:00:25,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 13:00:26,003 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 13:00:26,003 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:26,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:26,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:00:26,004 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 13:00:26,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:26,008 INFO L85 PathProgramCache]: Analyzing trace with hash 542546184, now seen corresponding path program 1 times [2023-08-30 13:00:26,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:26,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424723937] [2023-08-30 13:00:26,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:26,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:26,249 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 13:00:26,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:26,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424723937] [2023-08-30 13:00:26,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424723937] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:26,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:26,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:00:26,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043263483] [2023-08-30 13:00:26,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:26,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:00:26,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:26,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:00:26,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:00:26,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 242 [2023-08-30 13:00:26,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 86 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 13:00:26,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:26,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 242 [2023-08-30 13:00:26,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:27,707 INFO L130 PetriNetUnfolder]: 9335/13085 cut-off events. [2023-08-30 13:00:27,707 INFO L131 PetriNetUnfolder]: For 90/90 co-relation queries the response was YES. [2023-08-30 13:00:27,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26337 conditions, 13085 events. 9335/13085 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 796. Compared 79588 event pairs, 4283 based on Foata normal form. 618/9054 useless extension candidates. Maximal degree in co-relation 26325. Up to 12681 conditions per place. [2023-08-30 13:00:27,783 INFO L137 encePairwiseOnDemand]: 227/242 looper letters, 45 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2023-08-30 13:00:27,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 54 transitions, 229 flow [2023-08-30 13:00:27,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:00:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:00:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-08-30 13:00:27,795 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.546831955922865 [2023-08-30 13:00:27,795 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-08-30 13:00:27,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-08-30 13:00:27,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:27,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-08-30 13:00:27,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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 13:00:27,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 13:00:27,805 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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 13:00:27,807 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 86 flow. Second operand 3 states and 397 transitions. [2023-08-30 13:00:27,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 54 transitions, 229 flow [2023-08-30 13:00:27,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 222 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 13:00:27,833 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 129 flow [2023-08-30 13:00:27,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-30 13:00:27,838 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 13:00:27,838 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 129 flow [2023-08-30 13:00:27,838 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 13:00:27,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:27,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:27,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:00:27,839 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 13:00:27,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1057650773, now seen corresponding path program 1 times [2023-08-30 13:00:27,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:27,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343093529] [2023-08-30 13:00:27,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:27,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:27,919 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 13:00:27,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:27,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343093529] [2023-08-30 13:00:27,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343093529] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:27,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:27,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:00:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749670687] [2023-08-30 13:00:27,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:27,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:00:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:27,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:00:27,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:00:27,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 242 [2023-08-30 13:00:27,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 129 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 13:00:27,936 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:27,936 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 242 [2023-08-30 13:00:27,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:28,727 INFO L130 PetriNetUnfolder]: 4997/7071 cut-off events. [2023-08-30 13:00:28,727 INFO L131 PetriNetUnfolder]: For 633/633 co-relation queries the response was YES. [2023-08-30 13:00:28,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17620 conditions, 7071 events. 4997/7071 cut-off events. For 633/633 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 39164 event pairs, 1787 based on Foata normal form. 0/5724 useless extension candidates. Maximal degree in co-relation 17609. Up to 6666 conditions per place. [2023-08-30 13:00:28,764 INFO L137 encePairwiseOnDemand]: 233/242 looper letters, 41 selfloop transitions, 5 changer transitions 0/50 dead transitions. [2023-08-30 13:00:28,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 50 transitions, 239 flow [2023-08-30 13:00:28,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:00:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:00:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 498 transitions. [2023-08-30 13:00:28,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5144628099173554 [2023-08-30 13:00:28,769 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 498 transitions. [2023-08-30 13:00:28,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 498 transitions. [2023-08-30 13:00:28,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:28,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 498 transitions. [2023-08-30 13:00:28,772 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 13:00:28,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 13:00:28,775 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 13:00:28,775 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 129 flow. Second operand 4 states and 498 transitions. [2023-08-30 13:00:28,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 50 transitions, 239 flow [2023-08-30 13:00:28,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:00:28,778 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 118 flow [2023-08-30 13:00:28,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2023-08-30 13:00:28,779 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-30 13:00:28,780 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 118 flow [2023-08-30 13:00:28,780 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 13:00:28,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:28,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:28,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:00:28,781 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 13:00:28,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:28,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1829850882, now seen corresponding path program 1 times [2023-08-30 13:00:28,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:28,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735054836] [2023-08-30 13:00:28,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:28,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:28,902 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 13:00:28,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:28,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735054836] [2023-08-30 13:00:28,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735054836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:28,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:28,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:00:28,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502166935] [2023-08-30 13:00:28,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:28,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:00:28,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:28,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:00:28,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:00:28,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 242 [2023-08-30 13:00:28,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 118 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 13:00:28,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:28,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 242 [2023-08-30 13:00:28,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:29,236 INFO L130 PetriNetUnfolder]: 1888/2870 cut-off events. [2023-08-30 13:00:29,236 INFO L131 PetriNetUnfolder]: For 643/643 co-relation queries the response was YES. [2023-08-30 13:00:29,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7108 conditions, 2870 events. 1888/2870 cut-off events. For 643/643 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 14421 event pairs, 521 based on Foata normal form. 76/2639 useless extension candidates. Maximal degree in co-relation 7096. Up to 1834 conditions per place. [2023-08-30 13:00:29,248 INFO L137 encePairwiseOnDemand]: 232/242 looper letters, 53 selfloop transitions, 9 changer transitions 0/66 dead transitions. [2023-08-30 13:00:29,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 66 transitions, 320 flow [2023-08-30 13:00:29,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:00:29,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:00:29,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 515 transitions. [2023-08-30 13:00:29,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5320247933884298 [2023-08-30 13:00:29,251 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 515 transitions. [2023-08-30 13:00:29,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 515 transitions. [2023-08-30 13:00:29,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:29,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 515 transitions. [2023-08-30 13:00:29,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:29,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 13:00:29,255 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 13:00:29,255 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 118 flow. Second operand 4 states and 515 transitions. [2023-08-30 13:00:29,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 66 transitions, 320 flow [2023-08-30 13:00:29,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 66 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:00:29,258 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 172 flow [2023-08-30 13:00:29,258 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=172, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-30 13:00:29,259 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2023-08-30 13:00:29,259 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 172 flow [2023-08-30 13:00:29,259 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 13:00:29,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:29,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:29,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:00:29,260 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 13:00:29,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:29,261 INFO L85 PathProgramCache]: Analyzing trace with hash 639754439, now seen corresponding path program 1 times [2023-08-30 13:00:29,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:29,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537463084] [2023-08-30 13:00:29,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:29,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:29,361 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 13:00:29,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:29,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537463084] [2023-08-30 13:00:29,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537463084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:29,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:29,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:00:29,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136889156] [2023-08-30 13:00:29,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:29,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:00:29,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:29,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:00:29,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:00:29,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 242 [2023-08-30 13:00:29,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 172 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 13:00:29,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:29,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 242 [2023-08-30 13:00:29,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:29,585 INFO L130 PetriNetUnfolder]: 1101/1667 cut-off events. [2023-08-30 13:00:29,585 INFO L131 PetriNetUnfolder]: For 1104/1104 co-relation queries the response was YES. [2023-08-30 13:00:29,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4880 conditions, 1667 events. 1101/1667 cut-off events. For 1104/1104 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7311 event pairs, 255 based on Foata normal form. 44/1680 useless extension candidates. Maximal degree in co-relation 4867. Up to 632 conditions per place. [2023-08-30 13:00:29,593 INFO L137 encePairwiseOnDemand]: 232/242 looper letters, 59 selfloop transitions, 13 changer transitions 4/80 dead transitions. [2023-08-30 13:00:29,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 80 transitions, 432 flow [2023-08-30 13:00:29,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:00:29,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:00:29,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 641 transitions. [2023-08-30 13:00:29,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5297520661157025 [2023-08-30 13:00:29,596 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 641 transitions. [2023-08-30 13:00:29,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 641 transitions. [2023-08-30 13:00:29,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:29,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 641 transitions. [2023-08-30 13:00:29,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.2) internal successors, (641), 5 states have internal predecessors, (641), 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 13:00:29,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 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 13:00:29,601 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 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 13:00:29,601 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 172 flow. Second operand 5 states and 641 transitions. [2023-08-30 13:00:29,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 80 transitions, 432 flow [2023-08-30 13:00:29,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 80 transitions, 414 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 13:00:29,608 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 198 flow [2023-08-30 13:00:29,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=198, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2023-08-30 13:00:29,610 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2023-08-30 13:00:29,610 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 198 flow [2023-08-30 13:00:29,611 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 13:00:29,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:29,611 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] [2023-08-30 13:00:29,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:00:29,611 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 13:00:29,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:29,612 INFO L85 PathProgramCache]: Analyzing trace with hash -734476962, now seen corresponding path program 1 times [2023-08-30 13:00:29,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:29,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442656675] [2023-08-30 13:00:29,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:29,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:29,756 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 13:00:29,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:29,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442656675] [2023-08-30 13:00:29,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442656675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:29,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:29,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:00:29,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599988882] [2023-08-30 13:00:29,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:29,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:00:29,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:29,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:00:29,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:00:29,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 242 [2023-08-30 13:00:29,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 198 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 13:00:29,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:29,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 242 [2023-08-30 13:00:29,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:29,988 INFO L130 PetriNetUnfolder]: 1030/1522 cut-off events. [2023-08-30 13:00:29,988 INFO L131 PetriNetUnfolder]: For 1348/1348 co-relation queries the response was YES. [2023-08-30 13:00:29,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4593 conditions, 1522 events. 1030/1522 cut-off events. For 1348/1348 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6634 event pairs, 235 based on Foata normal form. 19/1534 useless extension candidates. Maximal degree in co-relation 4579. Up to 632 conditions per place. [2023-08-30 13:00:29,992 INFO L137 encePairwiseOnDemand]: 232/242 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2023-08-30 13:00:29,993 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 68 transitions, 364 flow [2023-08-30 13:00:29,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:00:29,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:00:29,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 741 transitions. [2023-08-30 13:00:29,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5103305785123967 [2023-08-30 13:00:29,996 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 741 transitions. [2023-08-30 13:00:29,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 741 transitions. [2023-08-30 13:00:29,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:29,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 741 transitions. [2023-08-30 13:00:29,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 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 13:00:30,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 242.0) internal successors, (1694), 7 states have internal predecessors, (1694), 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 13:00:30,002 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 242.0) internal successors, (1694), 7 states have internal predecessors, (1694), 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 13:00:30,002 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 198 flow. Second operand 6 states and 741 transitions. [2023-08-30 13:00:30,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 68 transitions, 364 flow [2023-08-30 13:00:30,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 68 transitions, 309 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 13:00:30,018 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2023-08-30 13:00:30,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2023-08-30 13:00:30,019 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -7 predicate places. [2023-08-30 13:00:30,019 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2023-08-30 13:00:30,020 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 13:00:30,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 13:00:30,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 13:00:30,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 13:00:30,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 13:00:30,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 13:00:30,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 13:00:30,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 13:00:30,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 13:00:30,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 13:00:30,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 13:00:30,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 13:00:30,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 13:00:30,025 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 13:00:30,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 13:00:30,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 13:00:30,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 13:00:30,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 13:00:30,026 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 13:00:30,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 13:00:30,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 13:00:30,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:00:30,027 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 13:00:30,032 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:00:30,032 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:00:30,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:00:30 BasicIcfg [2023-08-30 13:00:30,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:00:30,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:00:30,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:00:30,035 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:00:30,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:21" (3/4) ... [2023-08-30 13:00:30,038 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:00:30,042 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:00:30,042 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:00:30,042 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:00:30,042 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 13:00:30,046 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-08-30 13:00:30,047 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-08-30 13:00:30,047 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 13:00:30,047 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:00:30,080 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:00:30,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:00:30,081 INFO L158 Benchmark]: Toolchain (without parser) took 9787.96ms. Allocated memory was 77.6MB in the beginning and 1.1GB in the end (delta: 1.1GB). Free memory was 54.2MB in the beginning and 984.2MB in the end (delta: -930.0MB). Peak memory consumption was 123.5MB. Max. memory is 16.1GB. [2023-08-30 13:00:30,081 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:00:30,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.80ms. Allocated memory is still 77.6MB. Free memory was 54.0MB in the beginning and 52.1MB in the end (delta: 1.9MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-08-30 13:00:30,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.89ms. Allocated memory is still 77.6MB. Free memory was 52.1MB in the beginning and 49.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:00:30,082 INFO L158 Benchmark]: Boogie Preprocessor took 51.45ms. Allocated memory is still 77.6MB. Free memory was 49.1MB in the beginning and 47.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:00:30,082 INFO L158 Benchmark]: RCFGBuilder took 723.46ms. Allocated memory is still 77.6MB. Free memory was 47.3MB in the beginning and 35.1MB in the end (delta: 12.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-08-30 13:00:30,082 INFO L158 Benchmark]: TraceAbstraction took 8322.95ms. Allocated memory was 77.6MB in the beginning and 1.1GB in the end (delta: 1.1GB). Free memory was 34.5MB in the beginning and 988.4MB in the end (delta: -953.9MB). Peak memory consumption was 322.6MB. Max. memory is 16.1GB. [2023-08-30 13:00:30,083 INFO L158 Benchmark]: Witness Printer took 45.22ms. Allocated memory is still 1.1GB. Free memory was 988.4MB in the beginning and 984.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:00:30,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 39.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.80ms. Allocated memory is still 77.6MB. Free memory was 54.0MB in the beginning and 52.1MB in the end (delta: 1.9MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.89ms. Allocated memory is still 77.6MB. Free memory was 52.1MB in the beginning and 49.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.45ms. Allocated memory is still 77.6MB. Free memory was 49.1MB in the beginning and 47.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 723.46ms. Allocated memory is still 77.6MB. Free memory was 47.3MB in the beginning and 35.1MB in the end (delta: 12.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8322.95ms. Allocated memory was 77.6MB in the beginning and 1.1GB in the end (delta: 1.1GB). Free memory was 34.5MB in the beginning and 988.4MB in the end (delta: -953.9MB). Peak memory consumption was 322.6MB. Max. memory is 16.1GB. * Witness Printer took 45.22ms. Allocated memory is still 1.1GB. Free memory was 988.4MB in the beginning and 984.2MB in the end (delta: 4.2MB). 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: 4.0s, 144 PlacesBefore, 49 PlacesAfterwards, 133 TransitionsBefore, 37 TransitionsAfterwards, 3812 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 105 TotalNumberOfCompositions, 13185 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6018, independent: 5678, independent conditional: 0, independent unconditional: 5678, dependent: 340, dependent conditional: 0, dependent unconditional: 340, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1973, independent: 1915, independent conditional: 0, independent unconditional: 1915, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6018, independent: 3763, independent conditional: 0, independent unconditional: 3763, dependent: 282, dependent conditional: 0, dependent unconditional: 282, unknown: 1973, unknown conditional: 0, unknown unconditional: 1973] , Statistics on independence cache: Total cache size (in pairs): 252, Positive cache size: 229, Positive conditional cache size: 0, Positive unconditional cache size: 229, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, 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: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 797]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 833]: 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, 180 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: 8.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 245 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 217 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 13 mSDtfsCounter, 412 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=198occurred 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, 0.5s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 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 13:00:30,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE