./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.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/mix053_power.oepc_pso.oepc_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 03b62196b25662d8efd4f9890b2a9ba3be7263fa8e2874a92734800e01910b00 --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 13:01:02,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:01:02,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:01:02,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:01:02,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:01:02,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:01:02,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:01:02,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:01:02,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:01:02,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:01:02,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:01:02,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:01:02,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:01:02,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:01:02,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:01:02,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:01:02,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:01:02,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:01:02,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:01:02,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:01:02,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:01:02,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:01:02,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:01:02,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:01:02,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:01:02,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:01:02,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:01:02,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:01:02,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:01:02,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:01:02,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:01:02,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:01:02,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:01:02,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:01:02,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:01:02,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:01:02,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:01:02,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:01:02,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:01:02,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:01:02,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:01:02,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:01:02,333 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:01:02,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:01:02,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:01:02,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:01:02,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:01:02,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:01:02,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:01:02,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:01:02,336 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:01:02,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:01:02,336 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:01:02,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:01:02,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:01:02,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:01:02,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:01:02,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:01:02,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:01:02,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:01:02,338 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:01:02,338 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:01:02,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:01:02,338 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:01:02,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:01:02,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:01:02,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:01:02,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:01:02,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:01:02,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:01:02,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:01:02,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:01:02,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:01:02,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:01:02,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:01:02,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:01:02,340 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:01:02,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:01:02,340 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:01:02,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b62196b25662d8efd4f9890b2a9ba3be7263fa8e2874a92734800e01910b00 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:01:02,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:01:02,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:01:02,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:01:02,611 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:01:02,611 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:01:02,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i [2023-08-30 13:01:03,621 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:01:03,843 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:01:03,851 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix053_power.oepc_pso.oepc_rmo.oepc.i [2023-08-30 13:01:03,864 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9419a131f/5531f917f99e4e34bb5bd0391f0d2890/FLAG3057b500b [2023-08-30 13:01:03,875 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9419a131f/5531f917f99e4e34bb5bd0391f0d2890 [2023-08-30 13:01:03,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:01:03,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:01:03,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:01:03,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:01:03,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:01:03,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:01:03" (1/1) ... [2023-08-30 13:01:03,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21127beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:03, skipping insertion in model container [2023-08-30 13:01:03,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:01:03" (1/1) ... [2023-08-30 13:01:03,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:01:03,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:01:04,060 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/mix053_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-08-30 13:01:04,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:01:04,244 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:01:04,251 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/mix053_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-08-30 13:01:04,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:01:04,332 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:01:04,332 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:01:04,336 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:01:04,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04 WrapperNode [2023-08-30 13:01:04,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:01:04,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:01:04,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:01:04,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:01:04,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,391 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2023-08-30 13:01:04,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:01:04,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:01:04,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:01:04,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:01:04,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,426 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:01:04,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:01:04,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:01:04,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:01:04,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (1/1) ... [2023-08-30 13:01:04,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:01:04,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:01:04,466 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 13:01:04,500 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 13:01:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:01:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:01:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:01:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:01:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:01:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:01:04,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:01:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:01:04,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:01:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:01:04,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:01:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-08-30 13:01:04,524 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-08-30 13:01:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:01:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:01:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:01:04,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:01:04,527 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 13:01:04,646 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:01:04,648 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:01:04,962 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:01:05,058 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:01:05,058 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:01:05,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:01:05 BoogieIcfgContainer [2023-08-30 13:01:05,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:01:05,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:01:05,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:01:05,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:01:05,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:01:03" (1/3) ... [2023-08-30 13:01:05,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46536177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:01:05, skipping insertion in model container [2023-08-30 13:01:05,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:01:04" (2/3) ... [2023-08-30 13:01:05,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46536177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:01:05, skipping insertion in model container [2023-08-30 13:01:05,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:01:05" (3/3) ... [2023-08-30 13:01:05,065 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053_power.oepc_pso.oepc_rmo.oepc.i [2023-08-30 13:01:05,070 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:01:05,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:01:05,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-08-30 13:01:05,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:01:05,126 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:01:05,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 134 transitions, 288 flow [2023-08-30 13:01:05,204 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2023-08-30 13:01:05,204 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:01:05,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 13:01:05,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 134 transitions, 288 flow [2023-08-30 13:01:05,215 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 130 transitions, 272 flow [2023-08-30 13:01:05,222 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:01:05,230 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 130 transitions, 272 flow [2023-08-30 13:01:05,233 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 130 transitions, 272 flow [2023-08-30 13:01:05,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 130 transitions, 272 flow [2023-08-30 13:01:05,278 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2023-08-30 13:01:05,280 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:01:05,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 99 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-30 13:01:05,283 INFO L119 LiptonReduction]: Number of co-enabled transitions 3888 [2023-08-30 13:01:08,123 INFO L134 LiptonReduction]: Checked pairs total: 14371 [2023-08-30 13:01:08,124 INFO L136 LiptonReduction]: Total number of compositions: 105 [2023-08-30 13:01:08,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:01:08,136 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;@3c89ed29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:01:08,137 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 13:01:08,139 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 13:01:08,139 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:01:08,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:01:08,140 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:01:08,140 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 13:01:08,143 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:01:08,143 INFO L85 PathProgramCache]: Analyzing trace with hash -61348856, now seen corresponding path program 1 times [2023-08-30 13:01:08,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:01:08,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002163732] [2023-08-30 13:01:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:01:08,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:01:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:01:08,387 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 13:01:08,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:01:08,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002163732] [2023-08-30 13:01:08,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002163732] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:01:08,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:01:08,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:01:08,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619309697] [2023-08-30 13:01:08,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:01:08,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:01:08,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:01:08,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:01:08,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:01:08,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 239 [2023-08-30 13:01:08,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 13:01:08,427 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:01:08,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 239 [2023-08-30 13:01:08,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:09,666 INFO L130 PetriNetUnfolder]: 9717/13507 cut-off events. [2023-08-30 13:01:09,667 INFO L131 PetriNetUnfolder]: For 127/127 co-relation queries the response was YES. [2023-08-30 13:01:09,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27281 conditions, 13507 events. 9717/13507 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 73536 event pairs, 2763 based on Foata normal form. 0/10178 useless extension candidates. Maximal degree in co-relation 27269. Up to 11755 conditions per place. [2023-08-30 13:01:09,725 INFO L137 encePairwiseOnDemand]: 226/239 looper letters, 49 selfloop transitions, 5 changer transitions 0/57 dead transitions. [2023-08-30 13:01:09,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 243 flow [2023-08-30 13:01:09,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:01:09,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:01:09,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2023-08-30 13:01:09,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5341701534170153 [2023-08-30 13:01:09,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 383 transitions. [2023-08-30 13:01:09,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 383 transitions. [2023-08-30 13:01:09,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:09,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 383 transitions. [2023-08-30 13:01:09,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:01:09,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 13:01:09,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 239.0) internal successors, (956), 4 states have internal predecessors, (956), 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 13:01:09,745 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 82 flow. Second operand 3 states and 383 transitions. [2023-08-30 13:01:09,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 243 flow [2023-08-30 13:01:09,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-30 13:01:09,750 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 125 flow [2023-08-30 13:01:09,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-08-30 13:01:09,753 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-08-30 13:01:09,753 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 125 flow [2023-08-30 13:01:09,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 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 13:01:09,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:01:09,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:01:09,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:01:09,754 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 13:01:09,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:01:09,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1264631788, now seen corresponding path program 1 times [2023-08-30 13:01:09,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:01:09,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569333830] [2023-08-30 13:01:09,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:01:09,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:01:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:01:09,854 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 13:01:09,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:01:09,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569333830] [2023-08-30 13:01:09,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569333830] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:01:09,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:01:09,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:01:09,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291248205] [2023-08-30 13:01:09,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:01:09,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:01:09,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:01:09,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:01:09,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:01:09,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 239 [2023-08-30 13:01:09,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 13:01:09,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:01:09,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 239 [2023-08-30 13:01:09,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:10,687 INFO L130 PetriNetUnfolder]: 6207/8605 cut-off events. [2023-08-30 13:01:10,688 INFO L131 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2023-08-30 13:01:10,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20912 conditions, 8605 events. 6207/8605 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 44432 event pairs, 1715 based on Foata normal form. 0/7450 useless extension candidates. Maximal degree in co-relation 20901. Up to 6852 conditions per place. [2023-08-30 13:01:10,733 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 45 selfloop transitions, 5 changer transitions 0/53 dead transitions. [2023-08-30 13:01:10,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 53 transitions, 251 flow [2023-08-30 13:01:10,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:01:10,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:01:10,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 482 transitions. [2023-08-30 13:01:10,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50418410041841 [2023-08-30 13:01:10,736 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 482 transitions. [2023-08-30 13:01:10,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 482 transitions. [2023-08-30 13:01:10,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:10,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 482 transitions. [2023-08-30 13:01:10,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 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 13:01:10,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 13:01:10,741 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 13:01:10,741 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 125 flow. Second operand 4 states and 482 transitions. [2023-08-30 13:01:10,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 53 transitions, 251 flow [2023-08-30 13:01:10,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 53 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:01:10,744 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 114 flow [2023-08-30 13:01:10,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=114, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2023-08-30 13:01:10,745 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-08-30 13:01:10,745 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 114 flow [2023-08-30 13:01:10,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 13:01:10,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:01:10,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:01:10,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:01:10,746 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 13:01:10,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:01:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1264631789, now seen corresponding path program 1 times [2023-08-30 13:01:10,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:01:10,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145880786] [2023-08-30 13:01:10,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:01:10,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:01:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:01:10,827 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 13:01:10,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:01:10,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145880786] [2023-08-30 13:01:10,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145880786] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:01:10,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:01:10,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:01:10,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213619743] [2023-08-30 13:01:10,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:01:10,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:01:10,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:01:10,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:01:10,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:01:10,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 239 [2023-08-30 13:01:10,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 13:01:10,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:01:10,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 239 [2023-08-30 13:01:10,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:11,417 INFO L130 PetriNetUnfolder]: 4260/5936 cut-off events. [2023-08-30 13:01:11,418 INFO L131 PetriNetUnfolder]: For 1612/1612 co-relation queries the response was YES. [2023-08-30 13:01:11,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14241 conditions, 5936 events. 4260/5936 cut-off events. For 1612/1612 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 29537 event pairs, 1261 based on Foata normal form. 0/5697 useless extension candidates. Maximal degree in co-relation 14229. Up to 2277 conditions per place. [2023-08-30 13:01:11,448 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 61 selfloop transitions, 9 changer transitions 0/73 dead transitions. [2023-08-30 13:01:11,448 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 73 transitions, 348 flow [2023-08-30 13:01:11,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:01:11,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:01:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 502 transitions. [2023-08-30 13:01:11,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5251046025104602 [2023-08-30 13:01:11,450 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 502 transitions. [2023-08-30 13:01:11,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 502 transitions. [2023-08-30 13:01:11,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:11,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 502 transitions. [2023-08-30 13:01:11,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.5) internal successors, (502), 4 states have internal predecessors, (502), 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 13:01:11,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 13:01:11,454 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 239.0) internal successors, (1195), 5 states have internal predecessors, (1195), 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 13:01:11,454 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 114 flow. Second operand 4 states and 502 transitions. [2023-08-30 13:01:11,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 73 transitions, 348 flow [2023-08-30 13:01:11,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 73 transitions, 342 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:01:11,457 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 166 flow [2023-08-30 13:01:11,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-08-30 13:01:11,458 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2023-08-30 13:01:11,458 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 166 flow [2023-08-30 13:01:11,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 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 13:01:11,459 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:01:11,459 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:01:11,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:01:11,459 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 13:01:11,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:01:11,460 INFO L85 PathProgramCache]: Analyzing trace with hash -101637632, now seen corresponding path program 1 times [2023-08-30 13:01:11,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:01:11,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681831712] [2023-08-30 13:01:11,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:01:11,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:01:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:01:11,533 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 13:01:11,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:01:11,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681831712] [2023-08-30 13:01:11,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681831712] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:01:11,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:01:11,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:01:11,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711125788] [2023-08-30 13:01:11,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:01:11,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:01:11,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:01:11,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:01:11,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:01:11,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 239 [2023-08-30 13:01:11,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 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 13:01:11,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:01:11,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 239 [2023-08-30 13:01:11,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:12,021 INFO L130 PetriNetUnfolder]: 3939/5429 cut-off events. [2023-08-30 13:01:12,021 INFO L131 PetriNetUnfolder]: For 3330/3330 co-relation queries the response was YES. [2023-08-30 13:01:12,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14854 conditions, 5429 events. 3939/5429 cut-off events. For 3330/3330 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 26563 event pairs, 1217 based on Foata normal form. 0/5400 useless extension candidates. Maximal degree in co-relation 14841. Up to 2277 conditions per place. [2023-08-30 13:01:12,042 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 71 selfloop transitions, 13 changer transitions 4/91 dead transitions. [2023-08-30 13:01:12,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 91 transitions, 474 flow [2023-08-30 13:01:12,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:01:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:01:12,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 627 transitions. [2023-08-30 13:01:12,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5246861924686193 [2023-08-30 13:01:12,044 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 627 transitions. [2023-08-30 13:01:12,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 627 transitions. [2023-08-30 13:01:12,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:12,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 627 transitions. [2023-08-30 13:01:12,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 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 13:01:12,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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 13:01:12,048 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 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 13:01:12,048 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 166 flow. Second operand 5 states and 627 transitions. [2023-08-30 13:01:12,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 91 transitions, 474 flow [2023-08-30 13:01:12,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 91 transitions, 456 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-30 13:01:12,054 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 190 flow [2023-08-30 13:01:12,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=190, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2023-08-30 13:01:12,054 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-08-30 13:01:12,054 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 190 flow [2023-08-30 13:01:12,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.0) internal successors, (550), 5 states have internal predecessors, (550), 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 13:01:12,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:01:12,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:01:12,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:01:12,055 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 13:01:12,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:01:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash -983334695, now seen corresponding path program 1 times [2023-08-30 13:01:12,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:01:12,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335350740] [2023-08-30 13:01:12,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:01:12,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:01:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:01:12,155 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 13:01:12,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:01:12,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335350740] [2023-08-30 13:01:12,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335350740] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:01:12,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:01:12,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:01:12,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875079756] [2023-08-30 13:01:12,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:01:12,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:01:12,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:01:12,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:01:12,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:01:12,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 239 [2023-08-30 13:01:12,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 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 13:01:12,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:01:12,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 239 [2023-08-30 13:01:12,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:01:12,605 INFO L130 PetriNetUnfolder]: 3912/5382 cut-off events. [2023-08-30 13:01:12,605 INFO L131 PetriNetUnfolder]: For 4036/4036 co-relation queries the response was YES. [2023-08-30 13:01:12,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15085 conditions, 5382 events. 3912/5382 cut-off events. For 4036/4036 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 26372 event pairs, 1217 based on Foata normal form. 16/5385 useless extension candidates. Maximal degree in co-relation 15071. Up to 2277 conditions per place. [2023-08-30 13:01:12,615 INFO L137 encePairwiseOnDemand]: 230/239 looper letters, 0 selfloop transitions, 0 changer transitions 83/83 dead transitions. [2023-08-30 13:01:12,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 83 transitions, 426 flow [2023-08-30 13:01:12,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:01:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:01:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2023-08-30 13:01:12,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5062761506276151 [2023-08-30 13:01:12,617 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 726 transitions. [2023-08-30 13:01:12,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 726 transitions. [2023-08-30 13:01:12,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:01:12,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 726 transitions. [2023-08-30 13:01:12,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 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 13:01:12,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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 13:01:12,621 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 239.0) internal successors, (1673), 7 states have internal predecessors, (1673), 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 13:01:12,622 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 190 flow. Second operand 6 states and 726 transitions. [2023-08-30 13:01:12,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 83 transitions, 426 flow [2023-08-30 13:01:12,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 371 flow, removed 8 selfloop flow, removed 6 redundant places. [2023-08-30 13:01:12,678 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-08-30 13:01:12,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-08-30 13:01:12,679 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-08-30 13:01:12,679 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-08-30 13:01:12,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 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 13:01:12,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 13:01:12,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 13:01:12,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 13:01:12,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 13:01:12,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 13:01:12,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 13:01:12,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 13:01:12,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 13:01:12,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2023-08-30 13:01:12,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2023-08-30 13:01:12,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 13:01:12,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 13:01:12,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 13:01:12,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 13:01:12,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 13:01:12,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 13:01:12,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 13:01:12,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 13:01:12,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 13:01:12,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 13:01:12,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:01:12,685 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-30 13:01:12,688 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:01:12,688 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:01:12,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:01:12 BasicIcfg [2023-08-30 13:01:12,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:01:12,691 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:01:12,691 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:01:12,691 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:01:12,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:01:05" (3/4) ... [2023-08-30 13:01:12,693 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:01:12,695 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:01:12,696 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:01:12,696 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:01:12,696 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-08-30 13:01:12,698 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-08-30 13:01:12,699 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 13:01:12,699 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:01:12,699 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:01:12,720 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:01:12,721 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:01:12,721 INFO L158 Benchmark]: Toolchain (without parser) took 8843.07ms. Allocated memory was 73.4MB in the beginning and 1.1GB in the end (delta: 1.1GB). Free memory was 49.6MB in the beginning and 755.3MB in the end (delta: -705.7MB). Peak memory consumption was 348.8MB. Max. memory is 16.1GB. [2023-08-30 13:01:12,721 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:01:12,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.02ms. Allocated memory is still 73.4MB. Free memory was 49.6MB in the beginning and 45.6MB in the end (delta: 4.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2023-08-30 13:01:12,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.64ms. Allocated memory is still 73.4MB. Free memory was 45.6MB in the beginning and 42.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:01:12,722 INFO L158 Benchmark]: Boogie Preprocessor took 38.43ms. Allocated memory is still 73.4MB. Free memory was 42.9MB in the beginning and 41.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:01:12,722 INFO L158 Benchmark]: RCFGBuilder took 626.23ms. Allocated memory is still 73.4MB. Free memory was 40.8MB in the beginning and 47.8MB in the end (delta: -7.0MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2023-08-30 13:01:12,722 INFO L158 Benchmark]: TraceAbstraction took 7629.29ms. Allocated memory was 73.4MB in the beginning and 1.1GB in the end (delta: 1.1GB). Free memory was 47.0MB in the beginning and 758.4MB in the end (delta: -711.5MB). Peak memory consumption was 749.4MB. Max. memory is 16.1GB. [2023-08-30 13:01:12,723 INFO L158 Benchmark]: Witness Printer took 29.93ms. Allocated memory is still 1.1GB. Free memory was 758.4MB in the beginning and 755.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:01:12,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.02ms. Allocated memory is still 73.4MB. Free memory was 49.6MB in the beginning and 45.6MB in the end (delta: 4.0MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.64ms. Allocated memory is still 73.4MB. Free memory was 45.6MB in the beginning and 42.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.43ms. Allocated memory is still 73.4MB. Free memory was 42.9MB in the beginning and 41.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 626.23ms. Allocated memory is still 73.4MB. Free memory was 40.8MB in the beginning and 47.8MB in the end (delta: -7.0MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7629.29ms. Allocated memory was 73.4MB in the beginning and 1.1GB in the end (delta: 1.1GB). Free memory was 47.0MB in the beginning and 758.4MB in the end (delta: -711.5MB). Peak memory consumption was 749.4MB. Max. memory is 16.1GB. * Witness Printer took 29.93ms. Allocated memory is still 1.1GB. Free memory was 758.4MB in the beginning and 755.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 141 PlacesBefore, 48 PlacesAfterwards, 130 TransitionsBefore, 35 TransitionsAfterwards, 3888 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 105 TotalNumberOfCompositions, 14371 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4674, independent: 4323, independent conditional: 0, independent unconditional: 4323, dependent: 351, dependent conditional: 0, dependent unconditional: 351, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2037, independent: 1968, independent conditional: 0, independent unconditional: 1968, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4674, independent: 2355, independent conditional: 0, independent unconditional: 2355, dependent: 282, dependent conditional: 0, dependent unconditional: 282, unknown: 2037, unknown conditional: 0, unknown unconditional: 2037] , Statistics on independence cache: Total cache size (in pairs): 229, Positive cache size: 203, Positive conditional cache size: 0, Positive unconditional cache size: 203, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 811]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 844]: 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, 177 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: 7.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 282 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 250 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 445 IncrementalHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 18 mSDtfsCounter, 445 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=190occurred 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, 0.4s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 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 13:01:12,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE