./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/Narrowing.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a31fd051 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 ../sv-benchmarks/c/termination-restricted-15/Narrowing.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 65d96571ae692dc892a607d17412b050d92bd8365fc1d6c09a627f6750d6e1ac --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:05:59,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:05:59,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:05:59,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:05:59,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:05:59,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:05:59,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:05:59,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:05:59,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:05:59,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:05:59,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:05:59,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:05:59,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:05:59,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:05:59,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:05:59,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:05:59,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:05:59,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:05:59,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:05:59,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:05:59,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:05:59,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:05:59,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:05:59,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:05:59,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:05:59,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:05:59,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:05:59,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:05:59,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:05:59,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:05:59,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:05:59,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:05:59,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:05:59,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:05:59,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:05:59,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:05:59,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:05:59,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:05:59,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:05:59,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:05:59,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:05:59,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 14:05:59,436 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:05:59,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:05:59,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:05:59,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:05:59,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 14:05:59,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 14:05:59,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:05:59,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:05:59,438 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:05:59,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:05:59,438 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:05:59,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:05:59,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:05:59,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 14:05:59,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 14:05:59,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 14:05:59,439 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 14:05:59,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:05:59,439 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:05:59,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 14:05:59,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:05:59,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:05:59,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 14:05:59,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:05:59,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:05:59,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 14:05:59,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 14:05:59,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:05:59,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 14:05:59,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 14:05:59,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 14:05:59,441 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 14:05:59,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 14:05:59,441 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 14:05:59,441 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65d96571ae692dc892a607d17412b050d92bd8365fc1d6c09a627f6750d6e1ac [2023-02-15 14:05:59,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:05:59,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:05:59,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:05:59,657 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:05:59,657 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:05:59,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Narrowing.c [2023-02-15 14:06:00,858 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:06:01,033 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:06:01,033 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Narrowing.c [2023-02-15 14:06:01,038 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac5f0331/083f8a03d42c4d0b944069ec80a6a3ed/FLAG073ea9feb [2023-02-15 14:06:01,052 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac5f0331/083f8a03d42c4d0b944069ec80a6a3ed [2023-02-15 14:06:01,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:06:01,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:06:01,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:06:01,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:06:01,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:06:01,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a4ce4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01, skipping insertion in model container [2023-02-15 14:06:01,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:06:01,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:06:01,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:06:01,186 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:06:01,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:06:01,211 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:06:01,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01 WrapperNode [2023-02-15 14:06:01,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:06:01,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:06:01,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:06:01,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:06:01,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,237 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-02-15 14:06:01,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:06:01,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:06:01,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:06:01,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:06:01,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,250 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:06:01,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:06:01,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:06:01,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:06:01,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (1/1) ... [2023-02-15 14:06:01,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:06:01,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:06:01,284 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) [2023-02-15 14:06:01,286 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 [2023-02-15 14:06:01,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:06:01,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:06:01,387 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:06:01,389 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:06:01,512 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:06:01,517 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:06:01,517 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 14:06:01,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:06:01 BoogieIcfgContainer [2023-02-15 14:06:01,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:06:01,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 14:06:01,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 14:06:01,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 14:06:01,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:06:01" (1/3) ... [2023-02-15 14:06:01,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d248f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:06:01, skipping insertion in model container [2023-02-15 14:06:01,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:06:01" (2/3) ... [2023-02-15 14:06:01,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d248f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:06:01, skipping insertion in model container [2023-02-15 14:06:01,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:06:01" (3/3) ... [2023-02-15 14:06:01,527 INFO L112 eAbstractionObserver]: Analyzing ICFG Narrowing.c [2023-02-15 14:06:01,542 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 14:06:01,543 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-15 14:06:01,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 14:06:01,600 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;@557a8f57, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 14:06:01,601 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-15 14:06:01,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 27 states have internal predecessors, (34), 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) [2023-02-15 14:06:01,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 14:06:01,610 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:01,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:01,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:01,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:01,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724077, now seen corresponding path program 1 times [2023-02-15 14:06:01,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:01,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394457283] [2023-02-15 14:06:01,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:01,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:01,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:01,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:01,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394457283] [2023-02-15 14:06:01,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394457283] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:01,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:01,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:06:01,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500117979] [2023-02-15 14:06:01,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:01,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:01,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:01,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:01,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:01,835 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 27 states have internal predecessors, (34), 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-02-15 14:06:01,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:01,884 INFO L93 Difference]: Finished difference Result 72 states and 90 transitions. [2023-02-15 14:06:01,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:01,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2023-02-15 14:06:01,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:01,895 INFO L225 Difference]: With dead ends: 72 [2023-02-15 14:06:01,895 INFO L226 Difference]: Without dead ends: 38 [2023-02-15 14:06:01,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:01,901 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:01,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 52 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:01,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-15 14:06:01,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2023-02-15 14:06:01,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.8076923076923077) internal successors, (47), 33 states have internal predecessors, (47), 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) [2023-02-15 14:06:01,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2023-02-15 14:06:01,931 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 7 [2023-02-15 14:06:01,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:01,931 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2023-02-15 14:06:01,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-02-15 14:06:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2023-02-15 14:06:01,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 14:06:01,932 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:01,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:01,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 14:06:01,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:01,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:01,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1810666417, now seen corresponding path program 1 times [2023-02-15 14:06:01,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:01,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818499889] [2023-02-15 14:06:01,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:01,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:01,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:01,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818499889] [2023-02-15 14:06:01,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818499889] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:01,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:01,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:06:01,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967468442] [2023-02-15 14:06:01,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:01,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:01,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:01,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:01,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:01,971 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-02-15 14:06:02,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:02,014 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2023-02-15 14:06:02,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:02,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2023-02-15 14:06:02,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:02,030 INFO L225 Difference]: With dead ends: 44 [2023-02-15 14:06:02,030 INFO L226 Difference]: Without dead ends: 43 [2023-02-15 14:06:02,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,032 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 20 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:02,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 23 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:02,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-15 14:06:02,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 33. [2023-02-15 14:06:02,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 32 states have internal predecessors, (46), 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) [2023-02-15 14:06:02,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2023-02-15 14:06:02,039 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 7 [2023-02-15 14:06:02,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:02,040 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2023-02-15 14:06:02,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-02-15 14:06:02,040 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2023-02-15 14:06:02,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:06:02,041 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:02,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:02,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 14:06:02,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:02,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:02,042 INFO L85 PathProgramCache]: Analyzing trace with hash 297877621, now seen corresponding path program 1 times [2023-02-15 14:06:02,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:02,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057015183] [2023-02-15 14:06:02,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:02,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:02,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:02,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:02,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057015183] [2023-02-15 14:06:02,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057015183] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:02,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:02,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:06:02,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392040682] [2023-02-15 14:06:02,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:02,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:02,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:02,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:02,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,100 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-15 14:06:02,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:02,161 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2023-02-15 14:06:02,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:02,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2023-02-15 14:06:02,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:02,163 INFO L225 Difference]: With dead ends: 43 [2023-02-15 14:06:02,163 INFO L226 Difference]: Without dead ends: 42 [2023-02-15 14:06:02,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,165 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:02,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 24 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:06:02,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-15 14:06:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2023-02-15 14:06:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.7307692307692308) internal successors, (45), 31 states have internal predecessors, (45), 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) [2023-02-15 14:06:02,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 45 transitions. [2023-02-15 14:06:02,171 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 45 transitions. Word has length 8 [2023-02-15 14:06:02,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:02,171 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 45 transitions. [2023-02-15 14:06:02,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-15 14:06:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2023-02-15 14:06:02,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:06:02,172 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:02,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:02,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 14:06:02,172 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:02,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:02,173 INFO L85 PathProgramCache]: Analyzing trace with hash 297877814, now seen corresponding path program 1 times [2023-02-15 14:06:02,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:02,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138256330] [2023-02-15 14:06:02,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:02,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:02,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:02,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138256330] [2023-02-15 14:06:02,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138256330] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:02,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:02,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:06:02,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771912494] [2023-02-15 14:06:02,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:02,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:02,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:02,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:02,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,210 INFO L87 Difference]: Start difference. First operand 32 states and 45 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-15 14:06:02,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:02,224 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2023-02-15 14:06:02,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:02,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2023-02-15 14:06:02,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:02,225 INFO L225 Difference]: With dead ends: 66 [2023-02-15 14:06:02,225 INFO L226 Difference]: Without dead ends: 36 [2023-02-15 14:06:02,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,227 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 17 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:02,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 52 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:02,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-15 14:06:02,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2023-02-15 14:06:02,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 31 states have internal predecessors, (44), 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) [2023-02-15 14:06:02,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2023-02-15 14:06:02,236 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2023-02-15 14:06:02,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:02,237 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2023-02-15 14:06:02,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-15 14:06:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-02-15 14:06:02,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:06:02,238 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:02,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:02,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 14:06:02,238 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:02,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:02,239 INFO L85 PathProgramCache]: Analyzing trace with hash 296090354, now seen corresponding path program 1 times [2023-02-15 14:06:02,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:02,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469077465] [2023-02-15 14:06:02,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:02,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:02,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:02,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:02,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469077465] [2023-02-15 14:06:02,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469077465] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:02,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:02,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:06:02,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696006082] [2023-02-15 14:06:02,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:02,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:02,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:02,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:02,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,283 INFO L87 Difference]: Start difference. First operand 32 states and 44 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-15 14:06:02,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:02,301 INFO L93 Difference]: Finished difference Result 66 states and 86 transitions. [2023-02-15 14:06:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:02,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2023-02-15 14:06:02,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:02,303 INFO L225 Difference]: With dead ends: 66 [2023-02-15 14:06:02,303 INFO L226 Difference]: Without dead ends: 36 [2023-02-15 14:06:02,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,305 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 17 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:02,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 57 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:02,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-15 14:06:02,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2023-02-15 14:06:02,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 31 states have internal predecessors, (42), 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) [2023-02-15 14:06:02,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2023-02-15 14:06:02,310 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 8 [2023-02-15 14:06:02,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:02,310 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2023-02-15 14:06:02,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-15 14:06:02,310 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2023-02-15 14:06:02,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:06:02,311 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:02,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:02,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 14:06:02,311 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:02,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:02,312 INFO L85 PathProgramCache]: Analyzing trace with hash 296084139, now seen corresponding path program 1 times [2023-02-15 14:06:02,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:02,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932593043] [2023-02-15 14:06:02,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:02,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:02,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:02,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932593043] [2023-02-15 14:06:02,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932593043] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:02,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:02,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:06:02,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658638672] [2023-02-15 14:06:02,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:02,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:02,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:02,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:02,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,341 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-15 14:06:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:02,378 INFO L93 Difference]: Finished difference Result 54 states and 68 transitions. [2023-02-15 14:06:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:02,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2023-02-15 14:06:02,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:02,380 INFO L225 Difference]: With dead ends: 54 [2023-02-15 14:06:02,380 INFO L226 Difference]: Without dead ends: 52 [2023-02-15 14:06:02,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,382 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:02,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 48 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:02,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-15 14:06:02,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2023-02-15 14:06:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 47 states have internal predecessors, (66), 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) [2023-02-15 14:06:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2023-02-15 14:06:02,389 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 66 transitions. Word has length 8 [2023-02-15 14:06:02,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:02,390 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 66 transitions. [2023-02-15 14:06:02,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-15 14:06:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 66 transitions. [2023-02-15 14:06:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 14:06:02,391 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:02,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:02,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 14:06:02,391 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:02,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:02,392 INFO L85 PathProgramCache]: Analyzing trace with hash 644271729, now seen corresponding path program 1 times [2023-02-15 14:06:02,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:02,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718919191] [2023-02-15 14:06:02,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:02,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:02,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:02,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:02,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718919191] [2023-02-15 14:06:02,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718919191] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:02,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:02,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:06:02,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135160584] [2023-02-15 14:06:02,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:02,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:02,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:02,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:02,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,419 INFO L87 Difference]: Start difference. First operand 48 states and 66 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-02-15 14:06:02,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:02,444 INFO L93 Difference]: Finished difference Result 48 states and 66 transitions. [2023-02-15 14:06:02,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:02,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2023-02-15 14:06:02,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:02,446 INFO L225 Difference]: With dead ends: 48 [2023-02-15 14:06:02,446 INFO L226 Difference]: Without dead ends: 47 [2023-02-15 14:06:02,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,447 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:02,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 15 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:02,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-15 14:06:02,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2023-02-15 14:06:02,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 34 states have internal predecessors, (46), 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) [2023-02-15 14:06:02,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions. [2023-02-15 14:06:02,453 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 46 transitions. Word has length 9 [2023-02-15 14:06:02,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:02,453 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 46 transitions. [2023-02-15 14:06:02,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-02-15 14:06:02,453 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2023-02-15 14:06:02,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 14:06:02,454 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:02,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:02,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 14:06:02,455 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:02,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:02,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1502412806, now seen corresponding path program 1 times [2023-02-15 14:06:02,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:02,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193416107] [2023-02-15 14:06:02,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:02,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:02,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:02,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193416107] [2023-02-15 14:06:02,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193416107] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:02,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:02,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:06:02,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221433232] [2023-02-15 14:06:02,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:02,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:02,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:02,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:02,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,501 INFO L87 Difference]: Start difference. First operand 35 states and 46 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-02-15 14:06:02,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:02,534 INFO L93 Difference]: Finished difference Result 66 states and 90 transitions. [2023-02-15 14:06:02,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:02,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2023-02-15 14:06:02,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:02,536 INFO L225 Difference]: With dead ends: 66 [2023-02-15 14:06:02,536 INFO L226 Difference]: Without dead ends: 64 [2023-02-15 14:06:02,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,537 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:02,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 27 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:02,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-02-15 14:06:02,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2023-02-15 14:06:02,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 60 states have internal predecessors, (82), 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) [2023-02-15 14:06:02,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 82 transitions. [2023-02-15 14:06:02,545 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 82 transitions. Word has length 10 [2023-02-15 14:06:02,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:02,546 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 82 transitions. [2023-02-15 14:06:02,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-02-15 14:06:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 82 transitions. [2023-02-15 14:06:02,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 14:06:02,547 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:02,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:02,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 14:06:02,547 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:02,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:02,548 INFO L85 PathProgramCache]: Analyzing trace with hash 669843347, now seen corresponding path program 1 times [2023-02-15 14:06:02,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:02,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441048714] [2023-02-15 14:06:02,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:02,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:02,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:02,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441048714] [2023-02-15 14:06:02,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441048714] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:02,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:06:02,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:06:02,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087928978] [2023-02-15 14:06:02,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:02,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:06:02,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:02,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:06:02,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,576 INFO L87 Difference]: Start difference. First operand 61 states and 82 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-02-15 14:06:02,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:02,591 INFO L93 Difference]: Finished difference Result 61 states and 82 transitions. [2023-02-15 14:06:02,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:06:02,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2023-02-15 14:06:02,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:02,592 INFO L225 Difference]: With dead ends: 61 [2023-02-15 14:06:02,592 INFO L226 Difference]: Without dead ends: 59 [2023-02-15 14:06:02,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:06:02,593 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:02,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:02,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-02-15 14:06:02,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-02-15 14:06:02,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 58 states have internal predecessors, (76), 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) [2023-02-15 14:06:02,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2023-02-15 14:06:02,601 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 11 [2023-02-15 14:06:02,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:02,601 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2023-02-15 14:06:02,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-02-15 14:06:02,601 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2023-02-15 14:06:02,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 14:06:02,602 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:02,602 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:02,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 14:06:02,602 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:02,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:02,603 INFO L85 PathProgramCache]: Analyzing trace with hash -749408958, now seen corresponding path program 1 times [2023-02-15 14:06:02,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:02,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661222124] [2023-02-15 14:06:02,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:02,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:02,642 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:02,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:02,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661222124] [2023-02-15 14:06:02,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661222124] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:06:02,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434591055] [2023-02-15 14:06:02,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:02,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:06:02,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:06:02,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:06:02,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 14:06:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:02,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:06:02,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:06:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:02,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:06:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:02,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434591055] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:06:02,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:06:02,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 14:06:02,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917934337] [2023-02-15 14:06:02,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:06:02,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:06:02,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:02,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:06:02,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:06:02,835 INFO L87 Difference]: Start difference. First operand 59 states and 76 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) [2023-02-15 14:06:02,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:02,930 INFO L93 Difference]: Finished difference Result 199 states and 253 transitions. [2023-02-15 14:06:02,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 14:06:02,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) Word has length 18 [2023-02-15 14:06:02,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:02,933 INFO L225 Difference]: With dead ends: 199 [2023-02-15 14:06:02,934 INFO L226 Difference]: Without dead ends: 198 [2023-02-15 14:06:02,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:06:02,935 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 56 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:02,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 89 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:06:02,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-02-15 14:06:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 128. [2023-02-15 14:06:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 125 states have (on average 1.352) internal successors, (169), 127 states have internal predecessors, (169), 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) [2023-02-15 14:06:02,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 169 transitions. [2023-02-15 14:06:02,957 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 169 transitions. Word has length 18 [2023-02-15 14:06:02,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:02,957 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 169 transitions. [2023-02-15 14:06:02,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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) [2023-02-15 14:06:02,957 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 169 transitions. [2023-02-15 14:06:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-15 14:06:02,958 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:02,958 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:02,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 14:06:03,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-15 14:06:03,170 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:03,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:03,170 INFO L85 PathProgramCache]: Analyzing trace with hash 906754391, now seen corresponding path program 1 times [2023-02-15 14:06:03,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:03,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079510284] [2023-02-15 14:06:03,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:03,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:03,241 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:03,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:03,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079510284] [2023-02-15 14:06:03,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079510284] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:06:03,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444278511] [2023-02-15 14:06:03,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:03,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:06:03,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:06:03,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:06:03,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 14:06:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:03,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:06:03,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:06:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:03,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:06:03,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444278511] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:06:03,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:06:03,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2023-02-15 14:06:03,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627135499] [2023-02-15 14:06:03,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:06:03,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:06:03,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:03,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:06:03,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:06:03,326 INFO L87 Difference]: Start difference. First operand 128 states and 169 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-02-15 14:06:03,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:03,395 INFO L93 Difference]: Finished difference Result 327 states and 430 transitions. [2023-02-15 14:06:03,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:06:03,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) Word has length 22 [2023-02-15 14:06:03,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:03,396 INFO L225 Difference]: With dead ends: 327 [2023-02-15 14:06:03,396 INFO L226 Difference]: Without dead ends: 255 [2023-02-15 14:06:03,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:06:03,397 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 25 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:03,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 29 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:06:03,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-02-15 14:06:03,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 234. [2023-02-15 14:06:03,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 231 states have (on average 1.3073593073593073) internal successors, (302), 233 states have internal predecessors, (302), 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) [2023-02-15 14:06:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 302 transitions. [2023-02-15 14:06:03,424 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 302 transitions. Word has length 22 [2023-02-15 14:06:03,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:03,424 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 302 transitions. [2023-02-15 14:06:03,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2023-02-15 14:06:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 302 transitions. [2023-02-15 14:06:03,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-15 14:06:03,425 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:03,425 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:03,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 14:06:03,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-15 14:06:03,626 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:03,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:03,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1087390315, now seen corresponding path program 1 times [2023-02-15 14:06:03,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:03,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748834298] [2023-02-15 14:06:03,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:03,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:03,668 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:03,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:03,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748834298] [2023-02-15 14:06:03,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748834298] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:06:03,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466350867] [2023-02-15 14:06:03,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:03,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:06:03,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:06:03,670 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:06:03,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 14:06:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:03,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:06:03,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:06:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:03,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:06:03,789 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:03,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466350867] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:06:03,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:06:03,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 14:06:03,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101742928] [2023-02-15 14:06:03,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:06:03,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:06:03,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:03,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:06:03,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:06:03,792 INFO L87 Difference]: Start difference. First operand 234 states and 302 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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) [2023-02-15 14:06:03,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:03,832 INFO L93 Difference]: Finished difference Result 363 states and 472 transitions. [2023-02-15 14:06:03,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 14:06:03,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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) Word has length 22 [2023-02-15 14:06:03,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:03,834 INFO L225 Difference]: With dead ends: 363 [2023-02-15 14:06:03,834 INFO L226 Difference]: Without dead ends: 361 [2023-02-15 14:06:03,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:06:03,835 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 28 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:03,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 39 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:03,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-02-15 14:06:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 120. [2023-02-15 14:06:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.2352941176470589) internal successors, (147), 119 states have internal predecessors, (147), 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) [2023-02-15 14:06:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 147 transitions. [2023-02-15 14:06:03,847 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 147 transitions. Word has length 22 [2023-02-15 14:06:03,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:03,847 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 147 transitions. [2023-02-15 14:06:03,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 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) [2023-02-15 14:06:03,848 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 147 transitions. [2023-02-15 14:06:03,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-15 14:06:03,849 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:03,849 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-15 14:06:03,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 14:06:04,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:06:04,054 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 14:06:04,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:04,055 INFO L85 PathProgramCache]: Analyzing trace with hash 380856455, now seen corresponding path program 2 times [2023-02-15 14:06:04,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:04,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661529054] [2023-02-15 14:06:04,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:04,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:04,112 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-02-15 14:06:04,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:04,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661529054] [2023-02-15 14:06:04,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661529054] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:06:04,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240390327] [2023-02-15 14:06:04,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:06:04,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:06:04,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:06:04,116 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:06:04,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 14:06:04,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 14:06:04,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:06:04,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:06:04,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:06:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-02-15 14:06:04,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:06:04,265 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-02-15 14:06:04,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240390327] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:06:04,265 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:06:04,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 14:06:04,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061418536] [2023-02-15 14:06:04,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:06:04,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:06:04,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:04,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:06:04,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:06:04,271 INFO L87 Difference]: Start difference. First operand 120 states and 147 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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) [2023-02-15 14:06:04,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:04,311 INFO L93 Difference]: Finished difference Result 125 states and 152 transitions. [2023-02-15 14:06:04,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 14:06:04,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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) Word has length 48 [2023-02-15 14:06:04,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:04,313 INFO L225 Difference]: With dead ends: 125 [2023-02-15 14:06:04,313 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 14:06:04,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:06:04,321 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:04,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 10 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:06:04,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 14:06:04,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 14:06:04,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-02-15 14:06:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 14:06:04,322 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2023-02-15 14:06:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:04,323 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:06:04,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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) [2023-02-15 14:06:04,323 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 14:06:04,323 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 14:06:04,325 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-02-15 14:06:04,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-02-15 14:06:04,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-02-15 14:06:04,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-02-15 14:06:04,326 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-02-15 14:06:04,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-02-15 14:06:04,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-02-15 14:06:04,327 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-02-15 14:06:04,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 14:06:04,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:06:04,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 14:06:04,763 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-02-15 14:06:04,763 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2023-02-15 14:06:04,763 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-02-15 14:06:04,763 INFO L899 garLoopResultBuilder]: For program point L23-1(lines 23 25) no Hoare annotation was computed. [2023-02-15 14:06:04,764 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 32) the Hoare annotation is: true [2023-02-15 14:06:04,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2023-02-15 14:06:04,764 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 14:06:04,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-02-15 14:06:04,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-02-15 14:06:04,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 14:06:04,764 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-02-15 14:06:04,764 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2023-02-15 14:06:04,764 INFO L899 garLoopResultBuilder]: For program point L20-1(lines 13 29) no Hoare annotation was computed. [2023-02-15 14:06:04,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-02-15 14:06:04,765 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 14:06:04,765 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-02-15 14:06:04,765 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-02-15 14:06:04,765 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-02-15 14:06:04,765 INFO L899 garLoopResultBuilder]: For program point L17-1(lines 13 29) no Hoare annotation was computed. [2023-02-15 14:06:04,765 INFO L899 garLoopResultBuilder]: For program point L13-2(lines 13 29) no Hoare annotation was computed. [2023-02-15 14:06:04,765 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 14:06:04,765 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-02-15 14:06:04,765 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-02-15 14:06:04,765 INFO L899 garLoopResultBuilder]: For program point L26-1(lines 26 28) no Hoare annotation was computed. [2023-02-15 14:06:04,766 INFO L895 garLoopResultBuilder]: At program point L26-3(lines 13 29) the Hoare annotation is: (let ((.cse0 (<= 0 (+ 2147483646 |ULTIMATE.start_main_~range~0#1|))) (.cse1 (<= |ULTIMATE.start_main_~range~0#1| 20))) (or (and (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse0 .cse1 (= |ULTIMATE.start_main_~up~0#1| 0)) (and (= |ULTIMATE.start_main_~up~0#1| 1) .cse0 .cse1 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= 0 |ULTIMATE.start_main_~i~0#1|)))) [2023-02-15 14:06:04,766 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2023-02-15 14:06:04,766 INFO L899 garLoopResultBuilder]: For program point L14-2(lines 13 29) no Hoare annotation was computed. [2023-02-15 14:06:04,766 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2023-02-15 14:06:04,771 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:06:04,773 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 14:06:04,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:06:04 BoogieIcfgContainer [2023-02-15 14:06:04,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 14:06:04,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 14:06:04,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 14:06:04,792 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 14:06:04,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:06:01" (3/4) ... [2023-02-15 14:06:04,795 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 14:06:04,804 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 14:06:04,804 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-15 14:06:04,804 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 14:06:04,836 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 14:06:04,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 14:06:04,837 INFO L158 Benchmark]: Toolchain (without parser) took 3780.84ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 76.7MB in the beginning and 98.4MB in the end (delta: -21.6MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2023-02-15 14:06:04,837 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 90.3MB in the beginning and 90.2MB in the end (delta: 63.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:06:04,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.36ms. Allocated memory is still 119.5MB. Free memory was 76.3MB in the beginning and 67.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 14:06:04,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.25ms. Allocated memory is still 119.5MB. Free memory was 67.2MB in the beginning and 65.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:06:04,838 INFO L158 Benchmark]: Boogie Preprocessor took 19.69ms. Allocated memory is still 119.5MB. Free memory was 65.9MB in the beginning and 64.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:06:04,838 INFO L158 Benchmark]: RCFGBuilder took 261.10ms. Allocated memory is still 119.5MB. Free memory was 64.6MB in the beginning and 55.0MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 14:06:04,839 INFO L158 Benchmark]: TraceAbstraction took 3270.13ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 54.2MB in the beginning and 101.5MB in the end (delta: -47.3MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2023-02-15 14:06:04,839 INFO L158 Benchmark]: Witness Printer took 44.46ms. Allocated memory is still 144.7MB. Free memory was 100.5MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:06:04,842 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 90.3MB in the beginning and 90.2MB in the end (delta: 63.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.36ms. Allocated memory is still 119.5MB. Free memory was 76.3MB in the beginning and 67.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.25ms. Allocated memory is still 119.5MB. Free memory was 67.2MB in the beginning and 65.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.69ms. Allocated memory is still 119.5MB. Free memory was 65.9MB in the beginning and 64.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 261.10ms. Allocated memory is still 119.5MB. Free memory was 64.6MB in the beginning and 55.0MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3270.13ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 54.2MB in the beginning and 101.5MB in the end (delta: -47.3MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Witness Printer took 44.46ms. Allocated memory is still 144.7MB. Free memory was 100.5MB in the beginning and 98.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 295 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 295 mSDsluCounter, 479 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 198 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300 IncrementalHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 281 mSDtfsCounter, 300 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=11, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 383 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 19 NumberOfFragments, 35 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 4062 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 296 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 364 ConstructedInterpolants, 0 QuantifiedInterpolants, 1040 SizeOfPredicates, 5 NumberOfNonLiveVariables, 140 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 20 InterpolantComputations, 10 PerfectInterpolantSequences, 206/310 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 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (((i <= 2147483647 && 0 <= 2147483646 + range) && range <= 20) && up == 0) || ((((up == 1 && 0 <= 2147483646 + range) && range <= 20) && i <= 2147483646) && 0 <= i) RESULT: Ultimate proved your program to be correct! [2023-02-15 14:06:04,875 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