./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Benghazi.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-crafted/Benghazi.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 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:50:57,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:50:57,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:50:57,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:50:57,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:50:57,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:50:57,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:50:57,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:50:57,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:50:57,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:50:57,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:50:57,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:50:57,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:50:57,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:50:57,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:50:57,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:50:57,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:50:57,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:50:57,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:50:57,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:50:57,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:50:57,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:50:57,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:50:57,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:50:57,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:50:57,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:50:57,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:50:57,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:50:57,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:50:57,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:50:57,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:50:57,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:50:57,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:50:57,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:50:57,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:50:57,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:50:57,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:50:57,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:50:57,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:50:57,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:50:57,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:50:57,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 13:50:57,956 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:50:57,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:50:57,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:50:57,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:50:57,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:50:57,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:50:57,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:50:57,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:50:57,958 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:50:57,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:50:57,959 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:50:57,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:50:57,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:50:57,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 13:50:57,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:50:57,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 13:50:57,960 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 13:50:57,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 13:50:57,960 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:50:57,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 13:50:57,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:50:57,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:50:57,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:50:57,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:50:57,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:50:57,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:50:57,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 13:50:57,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 13:50:57,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 13:50:57,963 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:50:57,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 13:50:57,963 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:50:57,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:50:57,964 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:50:57,964 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9edf84ee73e15e033440f38035e679f46457b07702832d589a58530a086e57e5 [2023-02-15 13:50:58,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:50:58,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:50:58,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:50:58,160 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:50:58,160 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:50:58,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Benghazi.c [2023-02-15 13:50:59,241 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:50:59,370 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:50:59,371 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Benghazi.c [2023-02-15 13:50:59,375 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd5544afd/2d7b1124938e47aca1cfe4fa72fb563a/FLAG1a279e5ed [2023-02-15 13:50:59,387 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd5544afd/2d7b1124938e47aca1cfe4fa72fb563a [2023-02-15 13:50:59,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:50:59,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:50:59,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:50:59,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:50:59,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:50:59,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a9500c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59, skipping insertion in model container [2023-02-15 13:50:59,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:50:59,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:50:59,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:50:59,544 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:50:59,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:50:59,568 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:50:59,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59 WrapperNode [2023-02-15 13:50:59,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:50:59,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:50:59,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:50:59,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:50:59,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,594 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-15 13:50:59,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:50:59,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:50:59,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:50:59,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:50:59,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,606 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:50:59,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:50:59,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:50:59,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:50:59,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (1/1) ... [2023-02-15 13:50:59,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:50:59,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:50:59,638 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 13:50:59,641 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 13:50:59,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:50:59,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:50:59,717 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:50:59,719 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:50:59,792 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:50:59,797 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:50:59,797 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 13:50:59,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:50:59 BoogieIcfgContainer [2023-02-15 13:50:59,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:50:59,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:50:59,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:50:59,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:50:59,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:50:59" (1/3) ... [2023-02-15 13:50:59,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdd4f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:50:59, skipping insertion in model container [2023-02-15 13:50:59,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:50:59" (2/3) ... [2023-02-15 13:50:59,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdd4f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:50:59, skipping insertion in model container [2023-02-15 13:50:59,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:50:59" (3/3) ... [2023-02-15 13:50:59,806 INFO L112 eAbstractionObserver]: Analyzing ICFG Benghazi.c [2023-02-15 13:50:59,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:50:59,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-15 13:50:59,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:50:59,866 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;@48847034, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:50:59,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-15 13:50:59,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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 13:50:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-15 13:50:59,877 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:50:59,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-15 13:50:59,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:50:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:50:59,883 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-02-15 13:50:59,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:50:59,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46254489] [2023-02-15 13:50:59,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:50:59,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:50:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:00,052 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 13:51:00,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:00,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46254489] [2023-02-15 13:51:00,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46254489] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:51:00,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:51:00,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:51:00,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425845839] [2023-02-15 13:51:00,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:51:00,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:51:00,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:00,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:51:00,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:51:00,086 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 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 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 13:51:00,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:00,154 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2023-02-15 13:51:00,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 13:51:00,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2023-02-15 13:51:00,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:00,162 INFO L225 Difference]: With dead ends: 36 [2023-02-15 13:51:00,163 INFO L226 Difference]: Without dead ends: 23 [2023-02-15 13:51:00,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:51:00,168 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:00,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 40 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:51:00,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-15 13:51:00,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2023-02-15 13:51:00,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 16 states have internal predecessors, (17), 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 13:51:00,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-02-15 13:51:00,194 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2023-02-15 13:51:00,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:00,195 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-02-15 13:51:00,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 13:51:00,195 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-02-15 13:51:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 13:51:00,196 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:00,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 13:51:00,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 13:51:00,196 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:00,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:00,197 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2023-02-15 13:51:00,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:00,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255145246] [2023-02-15 13:51:00,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:00,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:00,268 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 13:51:00,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:00,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255145246] [2023-02-15 13:51:00,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255145246] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:51:00,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:51:00,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:51:00,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603224223] [2023-02-15 13:51:00,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:51:00,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:51:00,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:00,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:51:00,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:51:00,273 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 13:51:00,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:00,303 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2023-02-15 13:51:00,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:51:00,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-02-15 13:51:00,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:00,304 INFO L225 Difference]: With dead ends: 19 [2023-02-15 13:51:00,304 INFO L226 Difference]: Without dead ends: 18 [2023-02-15 13:51:00,304 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 13:51:00,306 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:00,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:51:00,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-15 13:51:00,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-15 13:51:00,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.5) internal successors, (18), 17 states have internal predecessors, (18), 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 13:51:00,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-15 13:51:00,310 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2023-02-15 13:51:00,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:00,310 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-15 13:51:00,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 13:51:00,311 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-15 13:51:00,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 13:51:00,311 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:00,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 13:51:00,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 13:51:00,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:00,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:00,312 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2023-02-15 13:51:00,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:00,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577008385] [2023-02-15 13:51:00,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:00,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:00,375 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 13:51:00,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:00,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577008385] [2023-02-15 13:51:00,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577008385] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:51:00,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:51:00,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:51:00,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877339846] [2023-02-15 13:51:00,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:51:00,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:51:00,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:00,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:51:00,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:51:00,383 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:51:00,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:00,407 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2023-02-15 13:51:00,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:51:00,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-02-15 13:51:00,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:00,409 INFO L225 Difference]: With dead ends: 25 [2023-02-15 13:51:00,409 INFO L226 Difference]: Without dead ends: 24 [2023-02-15 13:51:00,409 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 13:51:00,411 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 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 13:51:00,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:51:00,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-15 13:51:00,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2023-02-15 13:51:00,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 states have internal predecessors, (19), 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 13:51:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-02-15 13:51:00,422 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2023-02-15 13:51:00,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:00,422 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2023-02-15 13:51:00,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:51:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-02-15 13:51:00,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 13:51:00,423 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:00,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:51:00,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 13:51:00,428 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:00,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:00,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2023-02-15 13:51:00,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:00,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740704117] [2023-02-15 13:51:00,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:00,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:00,485 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 13:51:00,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:00,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740704117] [2023-02-15 13:51:00,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740704117] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:51:00,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:51:00,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:51:00,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400500221] [2023-02-15 13:51:00,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:51:00,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:51:00,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:00,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:51:00,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:51:00,488 INFO L87 Difference]: Start difference. First operand 19 states and 19 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 13:51:00,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:00,500 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2023-02-15 13:51:00,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:51:00,500 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 13:51:00,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:00,501 INFO L225 Difference]: With dead ends: 25 [2023-02-15 13:51:00,501 INFO L226 Difference]: Without dead ends: 24 [2023-02-15 13:51:00,502 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 13:51:00,503 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:00,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:51:00,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-15 13:51:00,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2023-02-15 13:51:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 19 states have internal predecessors, (20), 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 13:51:00,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2023-02-15 13:51:00,508 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2023-02-15 13:51:00,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:00,508 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2023-02-15 13:51:00,508 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 13:51:00,509 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-02-15 13:51:00,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 13:51:00,509 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:00,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:51:00,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 13:51:00,510 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:00,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:00,511 INFO L85 PathProgramCache]: Analyzing trace with hash 294943144, now seen corresponding path program 1 times [2023-02-15 13:51:00,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:00,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567063276] [2023-02-15 13:51:00,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:00,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:00,571 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 13:51:00,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:00,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567063276] [2023-02-15 13:51:00,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567063276] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:51:00,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:51:00,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:51:00,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356842909] [2023-02-15 13:51:00,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:51:00,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:51:00,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:00,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:51:00,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:51:00,578 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 13:51:00,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:00,632 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-02-15 13:51:00,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 13:51:00,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 13:51:00,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:00,633 INFO L225 Difference]: With dead ends: 28 [2023-02-15 13:51:00,634 INFO L226 Difference]: Without dead ends: 27 [2023-02-15 13:51:00,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:51:00,635 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:00,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:51:00,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-15 13:51:00,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2023-02-15 13:51:00,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 20 states have internal predecessors, (21), 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 13:51:00,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2023-02-15 13:51:00,640 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2023-02-15 13:51:00,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:00,640 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2023-02-15 13:51:00,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 13:51:00,640 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2023-02-15 13:51:00,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 13:51:00,641 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:00,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:51:00,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 13:51:00,641 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:00,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:00,642 INFO L85 PathProgramCache]: Analyzing trace with hash 553302925, now seen corresponding path program 1 times [2023-02-15 13:51:00,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:00,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325807020] [2023-02-15 13:51:00,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:00,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:00,683 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 13:51:00,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:00,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325807020] [2023-02-15 13:51:00,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325807020] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:51:00,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:51:00,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:51:00,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844436770] [2023-02-15 13:51:00,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:51:00,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:51:00,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:00,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:51:00,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:51:00,687 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 13:51:00,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:00,712 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2023-02-15 13:51:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 13:51:00,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 13:51:00,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:00,714 INFO L225 Difference]: With dead ends: 28 [2023-02-15 13:51:00,715 INFO L226 Difference]: Without dead ends: 27 [2023-02-15 13:51:00,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:51:00,716 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:00,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 29 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:51:00,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-15 13:51:00,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2023-02-15 13:51:00,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 21 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 13:51:00,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2023-02-15 13:51:00,727 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2023-02-15 13:51:00,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:00,727 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2023-02-15 13:51:00,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 13:51:00,728 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2023-02-15 13:51:00,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 13:51:00,728 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:00,728 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:51:00,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 13:51:00,729 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:00,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:00,729 INFO L85 PathProgramCache]: Analyzing trace with hash -851832465, now seen corresponding path program 1 times [2023-02-15 13:51:00,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:00,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152447729] [2023-02-15 13:51:00,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:00,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:00,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:00,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:00,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152447729] [2023-02-15 13:51:00,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152447729] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:00,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986535747] [2023-02-15 13:51:00,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:00,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:00,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:00,835 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 13:51:00,837 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 13:51:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:00,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 13:51:00,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:00,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:00,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:00,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986535747] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:00,975 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:00,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2023-02-15 13:51:00,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277008909] [2023-02-15 13:51:00,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:00,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 13:51:00,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:00,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 13:51:00,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-02-15 13:51:00,978 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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 13:51:01,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:01,088 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2023-02-15 13:51:01,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 13:51:01,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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 13:51:01,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:01,090 INFO L225 Difference]: With dead ends: 30 [2023-02-15 13:51:01,090 INFO L226 Difference]: Without dead ends: 29 [2023-02-15 13:51:01,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2023-02-15 13:51:01,091 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 45 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:01,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 24 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:51:01,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-15 13:51:01,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 21. [2023-02-15 13:51:01,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.3125) internal successors, (21), 20 states have internal predecessors, (21), 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 13:51:01,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2023-02-15 13:51:01,096 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 11 [2023-02-15 13:51:01,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:01,096 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2023-02-15 13:51:01,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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 13:51:01,096 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2023-02-15 13:51:01,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 13:51:01,097 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:01,097 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:51:01,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 13:51:01,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:01,302 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:01,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:01,303 INFO L85 PathProgramCache]: Analyzing trace with hash -637002594, now seen corresponding path program 1 times [2023-02-15 13:51:01,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:01,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510449073] [2023-02-15 13:51:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:01,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:01,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:01,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510449073] [2023-02-15 13:51:01,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510449073] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:01,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39089614] [2023-02-15 13:51:01,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:01,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:01,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:01,393 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 13:51:01,395 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 13:51:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:01,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 13:51:01,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:01,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:01,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:01,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:01,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39089614] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:01,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:01,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-02-15 13:51:01,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572742375] [2023-02-15 13:51:01,545 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:01,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 13:51:01,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:01,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 13:51:01,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-02-15 13:51:01,553 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 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 13:51:01,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:01,630 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2023-02-15 13:51:01,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:51:01,631 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 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) Word has length 12 [2023-02-15 13:51:01,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:01,633 INFO L225 Difference]: With dead ends: 29 [2023-02-15 13:51:01,633 INFO L226 Difference]: Without dead ends: 28 [2023-02-15 13:51:01,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-02-15 13:51:01,635 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:01,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 42 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:51:01,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-15 13:51:01,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2023-02-15 13:51:01,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.263157894736842) internal successors, (24), 23 states have internal predecessors, (24), 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 13:51:01,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2023-02-15 13:51:01,652 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2023-02-15 13:51:01,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:01,652 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2023-02-15 13:51:01,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 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 13:51:01,653 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2023-02-15 13:51:01,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 13:51:01,653 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:01,653 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:51:01,663 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 13:51:01,859 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,SelfDestructingSolverStorable7 [2023-02-15 13:51:01,860 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:01,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:01,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1727756113, now seen corresponding path program 1 times [2023-02-15 13:51:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:01,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359575493] [2023-02-15 13:51:01,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:01,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:01,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:01,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:01,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359575493] [2023-02-15 13:51:01,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359575493] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:51:01,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:51:01,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:51:01,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793715744] [2023-02-15 13:51:01,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:51:01,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:51:01,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:01,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:51:01,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:51:01,919 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13:51:01,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:01,935 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2023-02-15 13:51:01,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:51:01,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2023-02-15 13:51:01,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:01,936 INFO L225 Difference]: With dead ends: 24 [2023-02-15 13:51:01,936 INFO L226 Difference]: Without dead ends: 23 [2023-02-15 13:51:01,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:51:01,938 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:01,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 15 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:51:01,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-15 13:51:01,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-15 13:51:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 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 13:51:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2023-02-15 13:51:01,949 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 13 [2023-02-15 13:51:01,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:01,949 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2023-02-15 13:51:01,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13:51:01,949 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2023-02-15 13:51:01,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 13:51:01,950 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:01,950 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-15 13:51:01,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 13:51:01,950 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:01,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:01,951 INFO L85 PathProgramCache]: Analyzing trace with hash 2020832000, now seen corresponding path program 1 times [2023-02-15 13:51:01,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:01,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687990989] [2023-02-15 13:51:01,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:01,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:02,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:02,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:02,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687990989] [2023-02-15 13:51:02,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687990989] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:02,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198883121] [2023-02-15 13:51:02,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:02,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:02,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:02,005 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 13:51:02,007 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 13:51:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:02,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 13:51:02,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:02,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:02,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:02,109 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:02,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198883121] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:02,109 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:02,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-15 13:51:02,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764528055] [2023-02-15 13:51:02,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:02,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 13:51:02,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:02,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 13:51:02,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-02-15 13:51:02,111 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 13:51:02,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:02,225 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2023-02-15 13:51:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 13:51:02,226 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 14 [2023-02-15 13:51:02,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:02,227 INFO L225 Difference]: With dead ends: 44 [2023-02-15 13:51:02,227 INFO L226 Difference]: Without dead ends: 42 [2023-02-15 13:51:02,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-02-15 13:51:02,227 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 44 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:02,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 26 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:51:02,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-15 13:51:02,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2023-02-15 13:51:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 38 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 13:51:02,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2023-02-15 13:51:02,232 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 14 [2023-02-15 13:51:02,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:02,232 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2023-02-15 13:51:02,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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 13:51:02,233 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2023-02-15 13:51:02,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 13:51:02,233 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:02,233 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 13:51:02,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 13:51:02,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:02,434 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:02,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:02,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1778717389, now seen corresponding path program 1 times [2023-02-15 13:51:02,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:02,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788824517] [2023-02-15 13:51:02,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:02,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:02,470 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:02,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:02,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788824517] [2023-02-15 13:51:02,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788824517] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:02,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880689113] [2023-02-15 13:51:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:02,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:02,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:02,472 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 13:51:02,475 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 13:51:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:02,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 13:51:02,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:02,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:02,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:02,559 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:02,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880689113] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:02,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:02,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-15 13:51:02,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144643117] [2023-02-15 13:51:02,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:02,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 13:51:02,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:02,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 13:51:02,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-02-15 13:51:02,561 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 states have internal predecessors, (29), 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 13:51:02,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:02,653 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2023-02-15 13:51:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 13:51:02,653 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 states have internal predecessors, (29), 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 15 [2023-02-15 13:51:02,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:02,655 INFO L225 Difference]: With dead ends: 49 [2023-02-15 13:51:02,655 INFO L226 Difference]: Without dead ends: 48 [2023-02-15 13:51:02,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-02-15 13:51:02,657 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 37 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:02,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 16 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:51:02,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-15 13:51:02,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 38. [2023-02-15 13:51:02,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 37 states have internal predecessors, (40), 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 13:51:02,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2023-02-15 13:51:02,672 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 15 [2023-02-15 13:51:02,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:02,672 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2023-02-15 13:51:02,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 8 states have internal predecessors, (29), 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 13:51:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2023-02-15 13:51:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 13:51:02,673 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:02,673 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1] [2023-02-15 13:51:02,678 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 13:51:02,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:02,879 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:02,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:02,879 INFO L85 PathProgramCache]: Analyzing trace with hash 396612265, now seen corresponding path program 2 times [2023-02-15 13:51:02,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:02,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257663653] [2023-02-15 13:51:02,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:02,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:02,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:02,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257663653] [2023-02-15 13:51:02,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257663653] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:02,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231667695] [2023-02-15 13:51:02,994 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:51:02,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:02,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:02,997 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:51:03,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 13:51:03,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:51:03,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:51:03,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-15 13:51:03,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:03,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:03,294 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:03,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231667695] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:03,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:03,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2023-02-15 13:51:03,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748282506] [2023-02-15 13:51:03,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:03,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-15 13:51:03,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:03,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-15 13:51:03,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2023-02-15 13:51:03,302 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 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 13:51:03,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:03,403 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-02-15 13:51:03,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:51:03,403 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 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 19 [2023-02-15 13:51:03,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:03,404 INFO L225 Difference]: With dead ends: 38 [2023-02-15 13:51:03,404 INFO L226 Difference]: Without dead ends: 37 [2023-02-15 13:51:03,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2023-02-15 13:51:03,405 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 56 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:03,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 11 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:51:03,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-15 13:51:03,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-02-15 13:51:03,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 36 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 13:51:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2023-02-15 13:51:03,411 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 19 [2023-02-15 13:51:03,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:03,412 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2023-02-15 13:51:03,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 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 13:51:03,412 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2023-02-15 13:51:03,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-15 13:51:03,413 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:03,413 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1] [2023-02-15 13:51:03,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-15 13:51:03,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-15 13:51:03,617 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:03,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:03,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1970858238, now seen corresponding path program 1 times [2023-02-15 13:51:03,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:03,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554277148] [2023-02-15 13:51:03,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:03,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:03,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:03,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554277148] [2023-02-15 13:51:03,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554277148] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:03,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666803628] [2023-02-15 13:51:03,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:03,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:03,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:03,707 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:51:03,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 13:51:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:03,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 13:51:03,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:03,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:03,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666803628] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:03,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:03,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-15 13:51:03,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663692949] [2023-02-15 13:51:03,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:03,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 13:51:03,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:03,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 13:51:03,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2023-02-15 13:51:03,859 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 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 13:51:04,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:04,051 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2023-02-15 13:51:04,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 13:51:04,052 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 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 30 [2023-02-15 13:51:04,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:04,055 INFO L225 Difference]: With dead ends: 70 [2023-02-15 13:51:04,055 INFO L226 Difference]: Without dead ends: 68 [2023-02-15 13:51:04,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2023-02-15 13:51:04,057 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 86 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:04,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 39 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:51:04,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-02-15 13:51:04,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2023-02-15 13:51:04,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 65 states have (on average 1.0461538461538462) internal successors, (68), 66 states have internal predecessors, (68), 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 13:51:04,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2023-02-15 13:51:04,073 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 30 [2023-02-15 13:51:04,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:04,073 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2023-02-15 13:51:04,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 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 13:51:04,073 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2023-02-15 13:51:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-15 13:51:04,076 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:04,076 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 1, 1, 1] [2023-02-15 13:51:04,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 13:51:04,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:04,281 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:04,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:04,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1935918112, now seen corresponding path program 2 times [2023-02-15 13:51:04,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:04,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189278802] [2023-02-15 13:51:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:04,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:04,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:04,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189278802] [2023-02-15 13:51:04,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189278802] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:04,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035182142] [2023-02-15 13:51:04,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:51:04,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:04,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:04,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:51:04,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 13:51:04,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:51:04,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:51:04,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 13:51:04,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:04,619 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:04,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:04,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035182142] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:04,807 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:04,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2023-02-15 13:51:04,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215496877] [2023-02-15 13:51:04,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:04,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 13:51:04,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:04,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 13:51:04,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2023-02-15 13:51:04,809 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand has 26 states, 25 states have (on average 4.44) internal successors, (111), 26 states have internal predecessors, (111), 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 13:51:05,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:05,297 INFO L93 Difference]: Finished difference Result 123 states and 137 transitions. [2023-02-15 13:51:05,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-15 13:51:05,298 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.44) internal successors, (111), 26 states have internal predecessors, (111), 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 56 [2023-02-15 13:51:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:05,299 INFO L225 Difference]: With dead ends: 123 [2023-02-15 13:51:05,299 INFO L226 Difference]: Without dead ends: 121 [2023-02-15 13:51:05,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=750, Invalid=1700, Unknown=0, NotChecked=0, Total=2450 [2023-02-15 13:51:05,301 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 231 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:05,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 48 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:51:05,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-02-15 13:51:05,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-02-15 13:51:05,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 119 states have (on average 1.0168067226890756) internal successors, (121), 120 states have internal predecessors, (121), 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 13:51:05,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2023-02-15 13:51:05,314 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 56 [2023-02-15 13:51:05,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:05,315 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2023-02-15 13:51:05,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.44) internal successors, (111), 26 states have internal predecessors, (111), 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 13:51:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2023-02-15 13:51:05,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-02-15 13:51:05,321 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:05,322 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 15, 1, 1, 1] [2023-02-15 13:51:05,329 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-15 13:51:05,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:05,529 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:05,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:05,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1374949570, now seen corresponding path program 2 times [2023-02-15 13:51:05,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:05,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926632791] [2023-02-15 13:51:05,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:05,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:06,048 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:06,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:06,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926632791] [2023-02-15 13:51:06,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926632791] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:06,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251206527] [2023-02-15 13:51:06,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:51:06,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:06,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:06,050 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:51:06,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 13:51:06,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:51:06,127 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:51:06,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 13:51:06,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:06,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:06,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251206527] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:06,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:06,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2023-02-15 13:51:06,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759453903] [2023-02-15 13:51:06,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:06,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-02-15 13:51:06,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:06,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-02-15 13:51:06,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=1993, Unknown=0, NotChecked=0, Total=2450 [2023-02-15 13:51:06,833 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand has 50 states, 49 states have (on average 4.63265306122449) internal successors, (227), 50 states have internal predecessors, (227), 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 13:51:08,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:08,236 INFO L93 Difference]: Finished difference Result 238 states and 268 transitions. [2023-02-15 13:51:08,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-02-15 13:51:08,237 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 4.63265306122449) internal successors, (227), 50 states have internal predecessors, (227), 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 114 [2023-02-15 13:51:08,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:08,238 INFO L225 Difference]: With dead ends: 238 [2023-02-15 13:51:08,238 INFO L226 Difference]: Without dead ends: 236 [2023-02-15 13:51:08,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2146 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2842, Invalid=6664, Unknown=0, NotChecked=0, Total=9506 [2023-02-15 13:51:08,243 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 570 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:08,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 83 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 13:51:08,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-02-15 13:51:08,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 235. [2023-02-15 13:51:08,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 233 states have (on average 1.0128755364806867) internal successors, (236), 234 states have internal predecessors, (236), 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 13:51:08,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 236 transitions. [2023-02-15 13:51:08,262 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 236 transitions. Word has length 114 [2023-02-15 13:51:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:08,263 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 236 transitions. [2023-02-15 13:51:08,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 4.63265306122449) internal successors, (227), 50 states have internal predecessors, (227), 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 13:51:08,263 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 236 transitions. [2023-02-15 13:51:08,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-02-15 13:51:08,267 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:08,267 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 31, 31, 31, 1, 1, 1] [2023-02-15 13:51:08,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 13:51:08,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-15 13:51:08,473 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:08,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:08,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1009807200, now seen corresponding path program 3 times [2023-02-15 13:51:08,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:08,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792382280] [2023-02-15 13:51:08,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:08,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:10,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 0 proven. 3410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:10,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:10,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792382280] [2023-02-15 13:51:10,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792382280] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:10,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419792879] [2023-02-15 13:51:10,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 13:51:10,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:10,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:10,361 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:51:10,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 13:51:10,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-15 13:51:10,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:51:10,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 13:51:10,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 1156 proven. 129 refuted. 0 times theorem prover too weak. 2125 trivial. 0 not checked. [2023-02-15 13:51:11,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:12,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 1156 proven. 129 refuted. 0 times theorem prover too weak. 2125 trivial. 0 not checked. [2023-02-15 13:51:12,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419792879] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:12,002 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:12,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 18, 18] total 82 [2023-02-15 13:51:12,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139262702] [2023-02-15 13:51:12,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:12,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2023-02-15 13:51:12,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:12,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2023-02-15 13:51:12,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=709, Invalid=6097, Unknown=0, NotChecked=0, Total=6806 [2023-02-15 13:51:12,006 INFO L87 Difference]: Start difference. First operand 235 states and 236 transitions. Second operand has 83 states, 82 states have (on average 3.926829268292683) internal successors, (322), 83 states have internal predecessors, (322), 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 13:51:23,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:23,830 INFO L93 Difference]: Finished difference Result 235 states and 236 transitions. [2023-02-15 13:51:23,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2023-02-15 13:51:23,831 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 3.926829268292683) internal successors, (322), 83 states have internal predecessors, (322), 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 224 [2023-02-15 13:51:23,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:23,832 INFO L225 Difference]: With dead ends: 235 [2023-02-15 13:51:23,832 INFO L226 Difference]: Without dead ends: 234 [2023-02-15 13:51:23,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 413 SyntacticMatches, 1 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11323 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=9808, Invalid=36632, Unknown=0, NotChecked=0, Total=46440 [2023-02-15 13:51:23,840 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1895 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:23,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1895 Valid, 30 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-15 13:51:23,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-02-15 13:51:23,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2023-02-15 13:51:23,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.0042918454935623) internal successors, (234), 233 states have internal predecessors, (234), 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 13:51:23,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 234 transitions. [2023-02-15 13:51:23,864 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 234 transitions. Word has length 224 [2023-02-15 13:51:23,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:23,865 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 234 transitions. [2023-02-15 13:51:23,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 3.926829268292683) internal successors, (322), 83 states have internal predecessors, (322), 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 13:51:23,865 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 234 transitions. [2023-02-15 13:51:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-02-15 13:51:23,867 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:23,868 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 32, 1, 1, 1] [2023-02-15 13:51:23,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 13:51:24,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-15 13:51:24,072 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:24,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:24,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1116249715, now seen corresponding path program 3 times [2023-02-15 13:51:24,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:24,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829373375] [2023-02-15 13:51:24,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:24,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:25,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3696 backedges. 0 proven. 3696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:25,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:25,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829373375] [2023-02-15 13:51:25,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829373375] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:25,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015042568] [2023-02-15 13:51:25,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 13:51:25,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:25,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:25,754 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:51:25,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 13:51:25,858 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2023-02-15 13:51:25,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:51:25,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-15 13:51:25,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:26,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3696 backedges. 1596 proven. 306 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2023-02-15 13:51:26,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3696 backedges. 1596 proven. 306 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2023-02-15 13:51:28,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015042568] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:28,222 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:28,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 26, 26] total 101 [2023-02-15 13:51:28,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715310669] [2023-02-15 13:51:28,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:28,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-02-15 13:51:28,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:28,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-02-15 13:51:28,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=881, Invalid=9421, Unknown=0, NotChecked=0, Total=10302 [2023-02-15 13:51:28,226 INFO L87 Difference]: Start difference. First operand 234 states and 234 transitions. Second operand has 102 states, 101 states have (on average 3.772277227722772) internal successors, (381), 102 states have internal predecessors, (381), 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 13:51:45,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:45,177 INFO L93 Difference]: Finished difference Result 246 states and 247 transitions. [2023-02-15 13:51:45,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2023-02-15 13:51:45,177 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 101 states have (on average 3.772277227722772) internal successors, (381), 102 states have internal predecessors, (381), 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 233 [2023-02-15 13:51:45,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:45,178 INFO L225 Difference]: With dead ends: 246 [2023-02-15 13:51:45,178 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 13:51:45,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13173 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=12319, Invalid=45521, Unknown=0, NotChecked=0, Total=57840 [2023-02-15 13:51:45,183 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3265 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3265 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:45,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3265 Valid, 38 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-15 13:51:45,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 13:51:45,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 13:51:45,184 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 13:51:45,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 13:51:45,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 233 [2023-02-15 13:51:45,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:45,184 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 13:51:45,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 101 states have (on average 3.772277227722772) internal successors, (381), 102 states have internal predecessors, (381), 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 13:51:45,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 13:51:45,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 13:51:45,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-02-15 13:51:45,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-02-15 13:51:45,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-02-15 13:51:45,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-02-15 13:51:45,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-02-15 13:51:45,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-02-15 13:51:45,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 13:51:45,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-15 13:51:45,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 13:51:46,443 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-02-15 13:51:46,443 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 13:51:46,443 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-02-15 13:51:46,443 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-02-15 13:51:46,443 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2023-02-15 13:51:46,443 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-02-15 13:51:46,443 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2023-02-15 13:51:46,444 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2023-02-15 13:51:46,444 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 13:51:46,444 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 16 29) the Hoare annotation is: true [2023-02-15 13:51:46,444 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 13:51:46,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-02-15 13:51:46,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2023-02-15 13:51:46,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2023-02-15 13:51:46,444 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 13:51:46,444 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-02-15 13:51:46,444 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2023-02-15 13:51:46,445 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (let ((.cse8 (+ |ULTIMATE.start_main_~d2~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse0 (<= 73 |ULTIMATE.start_main_~d1old~0#1|)) (.cse1 (<= 75 |ULTIMATE.start_main_~d1~0#1|)) (.cse7 (<= |ULTIMATE.start_main_~d2~0#1| 74)) (.cse4 (<= 1 .cse8)) (.cse5 (<= 74 |ULTIMATE.start_main_~d2~0#1|)) (.cse6 (<= .cse8 2147483648))) (or (let ((.cse3 (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~d1old~0#1|)) (.cse2 (* 3 |ULTIMATE.start_main_~x~0#1|))) (and .cse0 (< |ULTIMATE.start_main_~d2~0#1| 2147483648) .cse1 (<= |ULTIMATE.start_main_~d1~0#1| 2147483645) (<= |ULTIMATE.start_main_~d1old~0#1| 2147483645) (<= (+ (* |ULTIMATE.start_main_~d1old~0#1| 4) .cse2) 8589934572) (<= .cse3 2147483647) (<= 0 .cse3) (<= |ULTIMATE.start_main_~x~0#1| 2147483499) .cse4 (<= (+ (* |ULTIMATE.start_main_~d2~0#1| 4) .cse2) 8589934576) .cse5 .cse6)) (and (<= |ULTIMATE.start_main_~d1~0#1| 73) (<= 73 |ULTIMATE.start_main_~d1~0#1|) (<= |ULTIMATE.start_main_~x~0#1| (+ 2147483574 |ULTIMATE.start_main_~d1~0#1|)) .cse7 .cse5) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~d1old~0#1| 73) (<= |ULTIMATE.start_main_~d1~0#1| 75) .cse7 .cse4 .cse5 .cse6)))) [2023-02-15 13:51:46,445 INFO L899 garLoopResultBuilder]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2023-02-15 13:51:46,449 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:51:46,452 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 13:51:46,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:51:46 BoogieIcfgContainer [2023-02-15 13:51:46,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 13:51:46,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 13:51:46,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 13:51:46,466 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 13:51:46,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:50:59" (3/4) ... [2023-02-15 13:51:46,468 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 13:51:46,476 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 13:51:46,476 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-15 13:51:46,476 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 13:51:46,492 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((73 <= d1\old && d2 < 2147483648) && 75 <= d1) && d1 <= 2147483645) && d1\old <= 2147483645) && d1\old * 4 + 3 * x <= 8589934572) && x + d1\old <= 2147483647) && 0 <= x + d1\old) && x <= 2147483499) && 1 <= d2 + x) && d2 * 4 + 3 * x <= 8589934576) && 74 <= d2) && d2 + x <= 2147483648) || ((((d1 <= 73 && 73 <= d1) && x <= 2147483574 + d1) && d2 <= 74) && 74 <= d2)) || (((((((73 <= d1\old && 75 <= d1) && d1\old <= 73) && d1 <= 75) && d2 <= 74) && 1 <= d2 + x) && 74 <= d2) && d2 + x <= 2147483648) [2023-02-15 13:51:46,496 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 13:51:46,497 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 13:51:46,497 INFO L158 Benchmark]: Toolchain (without parser) took 47106.33ms. Allocated memory was 125.8MB in the beginning and 327.2MB in the end (delta: 201.3MB). Free memory was 77.0MB in the beginning and 260.3MB in the end (delta: -183.4MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2023-02-15 13:51:46,497 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:51:46,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.21ms. Allocated memory is still 125.8MB. Free memory was 77.0MB in the beginning and 67.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 13:51:46,498 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.07ms. Allocated memory is still 125.8MB. Free memory was 67.7MB in the beginning and 66.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:51:46,498 INFO L158 Benchmark]: Boogie Preprocessor took 12.95ms. Allocated memory is still 125.8MB. Free memory was 66.5MB in the beginning and 65.6MB in the end (delta: 869.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 13:51:46,498 INFO L158 Benchmark]: RCFGBuilder took 190.78ms. Allocated memory is still 125.8MB. Free memory was 65.2MB in the beginning and 56.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 13:51:46,499 INFO L158 Benchmark]: TraceAbstraction took 46664.04ms. Allocated memory was 125.8MB in the beginning and 327.2MB in the end (delta: 201.3MB). Free memory was 55.6MB in the beginning and 263.5MB in the end (delta: -207.9MB). Peak memory consumption was 168.4MB. Max. memory is 16.1GB. [2023-02-15 13:51:46,499 INFO L158 Benchmark]: Witness Printer took 31.48ms. Allocated memory is still 327.2MB. Free memory was 262.4MB in the beginning and 260.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 13:51:46,500 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.21ms. Allocated memory is still 125.8MB. Free memory was 77.0MB in the beginning and 67.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.07ms. Allocated memory is still 125.8MB. Free memory was 67.7MB in the beginning and 66.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.95ms. Allocated memory is still 125.8MB. Free memory was 66.5MB in the beginning and 65.6MB in the end (delta: 869.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 190.78ms. Allocated memory is still 125.8MB. Free memory was 65.2MB in the beginning and 56.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 46664.04ms. Allocated memory was 125.8MB in the beginning and 327.2MB in the end (delta: 201.3MB). Free memory was 55.6MB in the beginning and 263.5MB in the end (delta: -207.9MB). Peak memory consumption was 168.4MB. Max. memory is 16.1GB. * Witness Printer took 31.48ms. Allocated memory is still 327.2MB. Free memory was 262.4MB in the beginning and 260.3MB 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 46.6s, OverallIterations: 17, TraceHistogramMax: 33, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 31.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6292 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6292 mSDsluCounter, 531 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 387 mSDsCounter, 967 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2700 IncrementalHoareTripleChecker+Invalid, 3667 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 967 mSolverCounterUnsat, 144 mSDtfsCounter, 2700 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2013 GetRequests, 1300 SyntacticMatches, 1 SemanticMatches, 712 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27420 ImplicationChecksByTransitivity, 34.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=15, InterpolantAutomatonStates: 441, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 53 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 38 NumberOfFragments, 109 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 7638 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 1508 NumberOfCodeBlocks, 1193 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 2199 ConstructedInterpolants, 0 QuantifiedInterpolants, 6981 SizeOfPredicates, 98 NumberOfNonLiveVariables, 911 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 37 InterpolantComputations, 7 PerfectInterpolantSequences, 13349/24601 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 6 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((((((((((73 <= d1\old && d2 < 2147483648) && 75 <= d1) && d1 <= 2147483645) && d1\old <= 2147483645) && d1\old * 4 + 3 * x <= 8589934572) && x + d1\old <= 2147483647) && 0 <= x + d1\old) && x <= 2147483499) && 1 <= d2 + x) && d2 * 4 + 3 * x <= 8589934576) && 74 <= d2) && d2 + x <= 2147483648) || ((((d1 <= 73 && 73 <= d1) && x <= 2147483574 + d1) && d2 <= 74) && 74 <= d2)) || (((((((73 <= d1\old && 75 <= d1) && d1\old <= 73) && d1 <= 75) && d2 <= 74) && 1 <= d2 + x) && 74 <= d2) && d2 + x <= 2147483648) RESULT: Ultimate proved your program to be correct! [2023-02-15 13:51:46,529 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