./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe016_rmo.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_rmo.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 ef808fc1470b7509ff56eb59d7d443a24f9bd367b94a6fd316176ae1cba1f1f6 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:48:24,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:48:24,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:48:24,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:48:24,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:48:24,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:48:24,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:48:24,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:48:24,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:48:24,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:48:24,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:48:24,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:48:24,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:48:24,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:48:24,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:48:24,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:48:24,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:48:24,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:48:24,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:48:24,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:48:24,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:48:24,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:48:24,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:48:24,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:48:24,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:48:24,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:48:24,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:48:24,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:48:24,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:48:24,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:48:24,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:48:24,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:48:24,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:48:24,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:48:24,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:48:24,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:48:24,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:48:24,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:48:24,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:48:24,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:48:24,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:48:24,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:48:24,393 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:48:24,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:48:24,394 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:48:24,394 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:48:24,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:48:24,395 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:48:24,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:48:24,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:48:24,396 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:48:24,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:48:24,397 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:48:24,398 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:48:24,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:48:24,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:48:24,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:48:24,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:48:24,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:48:24,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:48:24,399 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:48:24,399 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:48:24,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:48:24,400 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:48:24,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:48:24,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:48:24,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:48:24,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:48:24,401 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:48:24,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:48:24,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:48:24,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:48:24,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:48:24,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:48:24,403 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:48:24,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:48:24,403 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:48:24,403 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:48:24,403 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:48:24,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef808fc1470b7509ff56eb59d7d443a24f9bd367b94a6fd316176ae1cba1f1f6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:48:24,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:48:24,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:48:24,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:48:24,750 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:48:24,750 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:48:24,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_rmo.oepc.i [2023-08-30 08:48:25,979 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:48:26,240 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:48:26,240 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_rmo.oepc.i [2023-08-30 08:48:26,264 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8211bf0e/a82be6370a7444fc9b01e20f5d28bd86/FLAG459defbf4 [2023-08-30 08:48:26,281 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8211bf0e/a82be6370a7444fc9b01e20f5d28bd86 [2023-08-30 08:48:26,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:48:26,285 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:48:26,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:48:26,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:48:26,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:48:26,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49693d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26, skipping insertion in model container [2023-08-30 08:48:26,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:48:26,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:48:26,477 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/safe016_rmo.oepc.i[993,1006] [2023-08-30 08:48:26,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:48:26,730 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:48:26,741 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/safe016_rmo.oepc.i[993,1006] [2023-08-30 08:48:26,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:48:26,855 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:48:26,856 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:48:26,861 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:48:26,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26 WrapperNode [2023-08-30 08:48:26,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:48:26,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:48:26,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:48:26,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:48:26,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,938 INFO L138 Inliner]: procedures = 177, calls = 85, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 188 [2023-08-30 08:48:26,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:48:26,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:48:26,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:48:26,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:48:26,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,992 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:26,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:27,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:48:27,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:48:27,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:48:27,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:48:27,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (1/1) ... [2023-08-30 08:48:27,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:48:27,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:48:27,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:48:27,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:48:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:48:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:48:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:48:27,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:48:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:48:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:48:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 08:48:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 08:48:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 08:48:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 08:48:27,074 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 08:48:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 08:48:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 08:48:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 08:48:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:48:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:48:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:48:27,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:48:27,077 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:48:27,221 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:48:27,223 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:48:27,677 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:48:27,921 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:48:27,921 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:48:27,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:48:27 BoogieIcfgContainer [2023-08-30 08:48:27,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:48:27,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:48:27,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:48:27,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:48:27,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:48:26" (1/3) ... [2023-08-30 08:48:27,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4fcceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:48:27, skipping insertion in model container [2023-08-30 08:48:27,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:48:26" (2/3) ... [2023-08-30 08:48:27,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4fcceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:48:27, skipping insertion in model container [2023-08-30 08:48:27,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:48:27" (3/3) ... [2023-08-30 08:48:27,933 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_rmo.oepc.i [2023-08-30 08:48:27,942 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:48:27,950 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:48:27,951 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 08:48:27,951 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:48:28,032 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 08:48:28,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 318 flow [2023-08-30 08:48:28,156 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2023-08-30 08:48:28,157 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:48:28,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2023-08-30 08:48:28,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 149 transitions, 318 flow [2023-08-30 08:48:28,167 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 145 transitions, 302 flow [2023-08-30 08:48:28,171 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:48:28,181 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 145 transitions, 302 flow [2023-08-30 08:48:28,183 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 145 transitions, 302 flow [2023-08-30 08:48:28,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 302 flow [2023-08-30 08:48:28,211 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2023-08-30 08:48:28,211 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:48:28,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 89. Up to 2 conditions per place. [2023-08-30 08:48:28,214 INFO L119 LiptonReduction]: Number of co-enabled transitions 3344 [2023-08-30 08:48:40,035 INFO L134 LiptonReduction]: Checked pairs total: 10168 [2023-08-30 08:48:40,035 INFO L136 LiptonReduction]: Total number of compositions: 122 [2023-08-30 08:48:40,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:48:40,053 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;@2c996750, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:48:40,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 08:48:40,060 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-30 08:48:40,060 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:48:40,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:48:40,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:48:40,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:48:40,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:48:40,066 INFO L85 PathProgramCache]: Analyzing trace with hash 804458781, now seen corresponding path program 1 times [2023-08-30 08:48:40,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:48:40,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31435764] [2023-08-30 08:48:40,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:48:40,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:48:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:48:40,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:48:40,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:48:40,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31435764] [2023-08-30 08:48:40,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31435764] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:48:40,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:48:40,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:48:40,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407339697] [2023-08-30 08:48:40,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:48:40,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:48:40,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:48:40,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:48:40,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:48:40,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 271 [2023-08-30 08:48:40,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:40,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:48:40,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 271 [2023-08-30 08:48:40,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:48:41,753 INFO L130 PetriNetUnfolder]: 4983/6801 cut-off events. [2023-08-30 08:48:41,754 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2023-08-30 08:48:41,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13793 conditions, 6801 events. 4983/6801 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 33608 event pairs, 4983 based on Foata normal form. 0/5214 useless extension candidates. Maximal degree in co-relation 13781. Up to 6784 conditions per place. [2023-08-30 08:48:41,799 INFO L137 encePairwiseOnDemand]: 266/271 looper letters, 24 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2023-08-30 08:48:41,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 116 flow [2023-08-30 08:48:41,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:48:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:48:41,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 401 transitions. [2023-08-30 08:48:41,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4932349323493235 [2023-08-30 08:48:41,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 401 transitions. [2023-08-30 08:48:41,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 401 transitions. [2023-08-30 08:48:41,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:48:41,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 401 transitions. [2023-08-30 08:48:41,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.66666666666666) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:41,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:41,824 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:41,825 INFO L175 Difference]: Start difference. First operand has 44 places, 31 transitions, 74 flow. Second operand 3 states and 401 transitions. [2023-08-30 08:48:41,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 116 flow [2023-08-30 08:48:41,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 08:48:41,832 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 64 flow [2023-08-30 08:48:41,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2023-08-30 08:48:41,837 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -6 predicate places. [2023-08-30 08:48:41,837 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 64 flow [2023-08-30 08:48:41,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:41,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:48:41,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:48:41,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:48:41,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:48:41,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:48:41,841 INFO L85 PathProgramCache]: Analyzing trace with hash 804458782, now seen corresponding path program 1 times [2023-08-30 08:48:41,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:48:41,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032407358] [2023-08-30 08:48:41,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:48:41,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:48:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:48:41,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:48:41,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:48:41,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032407358] [2023-08-30 08:48:41,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032407358] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:48:41,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:48:41,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 08:48:41,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72588558] [2023-08-30 08:48:41,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:48:41,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 08:48:41,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:48:41,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 08:48:41,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 08:48:41,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 271 [2023-08-30 08:48:41,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:41,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:48:41,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 271 [2023-08-30 08:48:41,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:48:42,701 INFO L130 PetriNetUnfolder]: 3197/4511 cut-off events. [2023-08-30 08:48:42,701 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:48:42,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9163 conditions, 4511 events. 3197/4511 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 22536 event pairs, 765 based on Foata normal form. 0/3688 useless extension candidates. Maximal degree in co-relation 9157. Up to 3975 conditions per place. [2023-08-30 08:48:42,754 INFO L137 encePairwiseOnDemand]: 262/271 looper letters, 39 selfloop transitions, 5 changer transitions 0/46 dead transitions. [2023-08-30 08:48:42,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 46 transitions, 196 flow [2023-08-30 08:48:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 08:48:42,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 08:48:42,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2023-08-30 08:48:42,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5166051660516605 [2023-08-30 08:48:42,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 420 transitions. [2023-08-30 08:48:42,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 420 transitions. [2023-08-30 08:48:42,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:48:42,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 420 transitions. [2023-08-30 08:48:42,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:42,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:42,762 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 271.0) internal successors, (1084), 4 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:42,762 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 64 flow. Second operand 3 states and 420 transitions. [2023-08-30 08:48:42,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 46 transitions, 196 flow [2023-08-30 08:48:42,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 195 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:48:42,764 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 102 flow [2023-08-30 08:48:42,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2023-08-30 08:48:42,765 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -4 predicate places. [2023-08-30 08:48:42,765 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 102 flow [2023-08-30 08:48:42,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:42,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:48:42,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:48:42,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:48:42,766 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:48:42,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:48:42,767 INFO L85 PathProgramCache]: Analyzing trace with hash -907827788, now seen corresponding path program 1 times [2023-08-30 08:48:42,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:48:42,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800557078] [2023-08-30 08:48:42,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:48:42,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:48:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:48:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:48:42,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:48:42,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800557078] [2023-08-30 08:48:42,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800557078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:48:42,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:48:42,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 08:48:42,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198830569] [2023-08-30 08:48:42,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:48:42,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 08:48:42,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:48:42,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 08:48:42,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 08:48:42,865 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 271 [2023-08-30 08:48:42,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:42,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:48:42,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 271 [2023-08-30 08:48:42,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:48:43,423 INFO L130 PetriNetUnfolder]: 1937/2781 cut-off events. [2023-08-30 08:48:43,425 INFO L131 PetriNetUnfolder]: For 240/240 co-relation queries the response was YES. [2023-08-30 08:48:43,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6939 conditions, 2781 events. 1937/2781 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 12840 event pairs, 395 based on Foata normal form. 0/2586 useless extension candidates. Maximal degree in co-relation 6931. Up to 1277 conditions per place. [2023-08-30 08:48:43,442 INFO L137 encePairwiseOnDemand]: 262/271 looper letters, 52 selfloop transitions, 9 changer transitions 0/63 dead transitions. [2023-08-30 08:48:43,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 63 transitions, 306 flow [2023-08-30 08:48:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 08:48:43,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 08:48:43,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 561 transitions. [2023-08-30 08:48:43,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5175276752767528 [2023-08-30 08:48:43,445 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 561 transitions. [2023-08-30 08:48:43,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 561 transitions. [2023-08-30 08:48:43,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:48:43,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 561 transitions. [2023-08-30 08:48:43,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:43,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 271.0) internal successors, (1355), 5 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:43,450 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 271.0) internal successors, (1355), 5 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:43,450 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 102 flow. Second operand 4 states and 561 transitions. [2023-08-30 08:48:43,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 63 transitions, 306 flow [2023-08-30 08:48:43,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 63 transitions, 301 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:48:43,452 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 155 flow [2023-08-30 08:48:43,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2023-08-30 08:48:43,453 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -1 predicate places. [2023-08-30 08:48:43,453 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 155 flow [2023-08-30 08:48:43,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:43,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:48:43,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:48:43,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:48:43,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:48:43,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:48:43,455 INFO L85 PathProgramCache]: Analyzing trace with hash -813520202, now seen corresponding path program 1 times [2023-08-30 08:48:43,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:48:43,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228380260] [2023-08-30 08:48:43,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:48:43,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:48:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:48:43,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:48:43,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:48:43,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228380260] [2023-08-30 08:48:43,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228380260] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:48:43,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:48:43,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:48:43,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145537301] [2023-08-30 08:48:43,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:48:43,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:48:43,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:48:43,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:48:43,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:48:43,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 271 [2023-08-30 08:48:43,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 155 flow. Second operand has 5 states, 5 states have (on average 126.6) internal successors, (633), 5 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:43,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:48:43,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 271 [2023-08-30 08:48:43,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:48:44,170 INFO L130 PetriNetUnfolder]: 1679/2373 cut-off events. [2023-08-30 08:48:44,171 INFO L131 PetriNetUnfolder]: For 1566/1566 co-relation queries the response was YES. [2023-08-30 08:48:44,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6711 conditions, 2373 events. 1679/2373 cut-off events. For 1566/1566 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10484 event pairs, 351 based on Foata normal form. 0/2352 useless extension candidates. Maximal degree in co-relation 6701. Up to 968 conditions per place. [2023-08-30 08:48:44,185 INFO L137 encePairwiseOnDemand]: 262/271 looper letters, 59 selfloop transitions, 13 changer transitions 4/78 dead transitions. [2023-08-30 08:48:44,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 78 transitions, 421 flow [2023-08-30 08:48:44,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:48:44,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:48:44,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 700 transitions. [2023-08-30 08:48:44,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5166051660516605 [2023-08-30 08:48:44,188 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 700 transitions. [2023-08-30 08:48:44,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 700 transitions. [2023-08-30 08:48:44,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:48:44,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 700 transitions. [2023-08-30 08:48:44,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:44,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 271.0) internal successors, (1626), 6 states have internal predecessors, (1626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:44,193 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 271.0) internal successors, (1626), 6 states have internal predecessors, (1626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:44,193 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 155 flow. Second operand 5 states and 700 transitions. [2023-08-30 08:48:44,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 78 transitions, 421 flow [2023-08-30 08:48:44,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 78 transitions, 403 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 08:48:44,198 INFO L231 Difference]: Finished difference. Result has 46 places, 35 transitions, 179 flow [2023-08-30 08:48:44,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=179, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2023-08-30 08:48:44,199 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 2 predicate places. [2023-08-30 08:48:44,199 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 179 flow [2023-08-30 08:48:44,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.6) internal successors, (633), 5 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:44,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:48:44,200 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] [2023-08-30 08:48:44,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:48:44,200 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2023-08-30 08:48:44,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:48:44,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1873715800, now seen corresponding path program 1 times [2023-08-30 08:48:44,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:48:44,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929200516] [2023-08-30 08:48:44,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:48:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:48:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:48:44,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:48:44,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:48:44,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929200516] [2023-08-30 08:48:44,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929200516] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:48:44,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:48:44,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:48:44,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688331402] [2023-08-30 08:48:44,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:48:44,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:48:44,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:48:44,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:48:44,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:48:44,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 271 [2023-08-30 08:48:44,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:44,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:48:44,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 271 [2023-08-30 08:48:44,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:48:44,856 INFO L130 PetriNetUnfolder]: 1652/2326 cut-off events. [2023-08-30 08:48:44,856 INFO L131 PetriNetUnfolder]: For 2020/2020 co-relation queries the response was YES. [2023-08-30 08:48:44,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6760 conditions, 2326 events. 1652/2326 cut-off events. For 2020/2020 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10310 event pairs, 351 based on Foata normal form. 16/2337 useless extension candidates. Maximal degree in co-relation 6749. Up to 968 conditions per place. [2023-08-30 08:48:44,861 INFO L137 encePairwiseOnDemand]: 262/271 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2023-08-30 08:48:44,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 70 transitions, 373 flow [2023-08-30 08:48:44,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:48:44,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:48:44,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 816 transitions. [2023-08-30 08:48:44,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018450184501845 [2023-08-30 08:48:44,864 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 816 transitions. [2023-08-30 08:48:44,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 816 transitions. [2023-08-30 08:48:44,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:48:44,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 816 transitions. [2023-08-30 08:48:44,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.0) internal successors, (816), 6 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:44,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:44,870 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 271.0) internal successors, (1897), 7 states have internal predecessors, (1897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:44,870 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 179 flow. Second operand 6 states and 816 transitions. [2023-08-30 08:48:44,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 70 transitions, 373 flow [2023-08-30 08:48:44,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 70 transitions, 318 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 08:48:44,903 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2023-08-30 08:48:44,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2023-08-30 08:48:44,904 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-08-30 08:48:44,904 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2023-08-30 08:48:44,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.0) internal successors, (762), 6 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:48:44,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 08:48:44,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 08:48:44,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 08:48:44,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 08:48:44,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 08:48:44,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 08:48:44,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 08:48:44,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 08:48:44,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 08:48:44,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 08:48:44,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 08:48:44,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 08:48:44,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 08:48:44,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 08:48:44,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 08:48:44,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 08:48:44,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 08:48:44,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 08:48:44,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 08:48:44,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 08:48:44,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:48:44,912 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 08:48:44,916 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:48:44,916 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:48:44,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:48:44 BasicIcfg [2023-08-30 08:48:44,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:48:44,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:48:44,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:48:44,921 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:48:44,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:48:27" (3/4) ... [2023-08-30 08:48:44,923 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:48:44,927 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 08:48:44,927 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 08:48:44,927 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 08:48:44,928 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 08:48:44,933 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 67 nodes and edges [2023-08-30 08:48:44,933 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-08-30 08:48:44,934 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-30 08:48:44,934 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:48:44,974 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:48:44,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:48:44,975 INFO L158 Benchmark]: Toolchain (without parser) took 18690.32ms. Allocated memory was 67.1MB in the beginning and 851.4MB in the end (delta: 784.3MB). Free memory was 32.3MB in the beginning and 755.3MB in the end (delta: -723.1MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2023-08-30 08:48:44,975 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory is still 31.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:48:44,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 575.08ms. Allocated memory is still 67.1MB. Free memory was 32.1MB in the beginning and 39.1MB in the end (delta: -7.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-08-30 08:48:44,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.34ms. Allocated memory is still 67.1MB. Free memory was 39.1MB in the beginning and 36.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:48:44,976 INFO L158 Benchmark]: Boogie Preprocessor took 62.32ms. Allocated memory is still 67.1MB. Free memory was 36.2MB in the beginning and 33.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:48:44,977 INFO L158 Benchmark]: RCFGBuilder took 920.92ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 33.8MB in the beginning and 45.4MB in the end (delta: -11.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-08-30 08:48:44,977 INFO L158 Benchmark]: TraceAbstraction took 16993.64ms. Allocated memory was 81.8MB in the beginning and 851.4MB in the end (delta: 769.7MB). Free memory was 44.9MB in the beginning and 759.5MB in the end (delta: -714.6MB). Peak memory consumption was 541.9MB. Max. memory is 16.1GB. [2023-08-30 08:48:44,977 INFO L158 Benchmark]: Witness Printer took 54.49ms. Allocated memory is still 851.4MB. Free memory was 759.5MB in the beginning and 755.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:48:44,979 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 54.5MB. Free memory is still 31.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 575.08ms. Allocated memory is still 67.1MB. Free memory was 32.1MB in the beginning and 39.1MB in the end (delta: -7.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.34ms. Allocated memory is still 67.1MB. Free memory was 39.1MB in the beginning and 36.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.32ms. Allocated memory is still 67.1MB. Free memory was 36.2MB in the beginning and 33.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 920.92ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 33.8MB in the beginning and 45.4MB in the end (delta: -11.5MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * TraceAbstraction took 16993.64ms. Allocated memory was 81.8MB in the beginning and 851.4MB in the end (delta: 769.7MB). Free memory was 44.9MB in the beginning and 759.5MB in the end (delta: -714.6MB). Peak memory consumption was 541.9MB. Max. memory is 16.1GB. * Witness Printer took 54.49ms. Allocated memory is still 851.4MB. Free memory was 759.5MB in the beginning and 755.3MB 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: 11.9s, 156 PlacesBefore, 44 PlacesAfterwards, 145 TransitionsBefore, 31 TransitionsAfterwards, 3344 CoEnabledTransitionPairs, 7 FixpointIterations, 60 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 122 TotalNumberOfCompositions, 10168 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3527, independent: 3231, independent conditional: 0, independent unconditional: 3231, dependent: 296, dependent conditional: 0, dependent unconditional: 296, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1740, independent: 1673, independent conditional: 0, independent unconditional: 1673, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3527, independent: 1558, independent conditional: 0, independent unconditional: 1558, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 1740, unknown conditional: 0, unknown unconditional: 1740] , Statistics on independence cache: Total cache size (in pairs): 155, Positive cache size: 132, Positive conditional cache size: 0, Positive unconditional cache size: 132, 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: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 836]: 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, 188 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 16.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 219 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 4 mSDtfsCounter, 324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=4, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:48:44,996 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