./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/Ex08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e1ff0e6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-restricted-15/Ex08.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 e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 02:14:28,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 02:14:28,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 02:14:28,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 02:14:28,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 02:14:28,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 02:14:28,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 02:14:28,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 02:14:28,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 02:14:28,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 02:14:28,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 02:14:28,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 02:14:28,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 02:14:28,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 02:14:28,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 02:14:28,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 02:14:28,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 02:14:28,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 02:14:28,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 02:14:28,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 02:14:28,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 02:14:28,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 02:14:28,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 02:14:28,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 02:14:28,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 02:14:28,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 02:14:28,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 02:14:28,653 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 02:14:28,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 02:14:28,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 02:14:28,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 02:14:28,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 02:14:28,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 02:14:28,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 02:14:28,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 02:14:28,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 02:14:28,658 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 02:14:28,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 02:14:28,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 02:14:28,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 02:14:28,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 02:14:28,660 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 02:14:28,676 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 02:14:28,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 02:14:28,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 02:14:28,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 02:14:28,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 02:14:28,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 02:14:28,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 02:14:28,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 02:14:28,679 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 02:14:28,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 02:14:28,679 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 02:14:28,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 02:14:28,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 02:14:28,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 02:14:28,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 02:14:28,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 02:14:28,680 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 02:14:28,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 02:14:28,681 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 02:14:28,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 02:14:28,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 02:14:28,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 02:14:28,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 02:14:28,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:14:28,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 02:14:28,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 02:14:28,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 02:14:28,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 02:14:28,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 02:14:28,683 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 02:14:28,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 02:14:28,683 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 02:14:28,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 02:14:28,683 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 02:14:28,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f5cf3ddf7f2bce97ea02caa876a19793443837e6b09c62b997f759c9b40cc6 [2023-02-15 02:14:28,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 02:14:28,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 02:14:28,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 02:14:28,948 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 02:14:28,948 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 02:14:28,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/Ex08.c [2023-02-15 02:14:30,075 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 02:14:30,251 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 02:14:30,256 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/Ex08.c [2023-02-15 02:14:30,270 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fef4f131/bc01b1b678df440b8536384bf74f1475/FLAG175a62489 [2023-02-15 02:14:30,283 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fef4f131/bc01b1b678df440b8536384bf74f1475 [2023-02-15 02:14:30,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 02:14:30,286 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 02:14:30,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 02:14:30,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 02:14:30,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 02:14:30,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688021a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30, skipping insertion in model container [2023-02-15 02:14:30,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 02:14:30,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 02:14:30,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:14:30,420 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 02:14:30,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:14:30,440 INFO L208 MainTranslator]: Completed translation [2023-02-15 02:14:30,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30 WrapperNode [2023-02-15 02:14:30,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 02:14:30,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 02:14:30,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 02:14:30,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 02:14:30,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,465 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-02-15 02:14:30,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 02:14:30,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 02:14:30,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 02:14:30,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 02:14:30,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,483 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 02:14:30,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 02:14:30,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 02:14:30,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 02:14:30,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (1/1) ... [2023-02-15 02:14:30,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:14:30,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:30,518 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 02:14:30,522 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 02:14:30,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 02:14:30,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 02:14:30,611 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 02:14:30,613 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 02:14:30,696 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 02:14:30,701 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 02:14:30,701 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 02:14:30,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:30 BoogieIcfgContainer [2023-02-15 02:14:30,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 02:14:30,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 02:14:30,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 02:14:30,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 02:14:30,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:14:30" (1/3) ... [2023-02-15 02:14:30,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684a8521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:14:30, skipping insertion in model container [2023-02-15 02:14:30,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:30" (2/3) ... [2023-02-15 02:14:30,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684a8521 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:14:30, skipping insertion in model container [2023-02-15 02:14:30,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:30" (3/3) ... [2023-02-15 02:14:30,710 INFO L112 eAbstractionObserver]: Analyzing ICFG Ex08.c [2023-02-15 02:14:30,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 02:14:30,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-15 02:14:30,765 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 02:14:30,771 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;@7c2599f0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 02:14:30,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-15 02:14:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 17 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 02:14:30,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 02:14:30,781 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:30,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:30,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:14:30,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:30,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1810724269, now seen corresponding path program 1 times [2023-02-15 02:14:30,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:30,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714180013] [2023-02-15 02:14:30,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:30,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:30,922 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 02:14:30,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:30,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714180013] [2023-02-15 02:14:30,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714180013] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:30,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:30,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:14:30,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436029177] [2023-02-15 02:14:30,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:30,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:14:30,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:30,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:14:30,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:30,954 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 17 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) 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 02:14:30,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:30,991 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2023-02-15 02:14:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:14:31,007 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 02:14:31,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:31,013 INFO L225 Difference]: With dead ends: 23 [2023-02-15 02:14:31,013 INFO L226 Difference]: Without dead ends: 13 [2023-02-15 02:14:31,015 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 02:14:31,018 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:31,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 13 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:31,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-15 02:14:31,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-02-15 02:14:31,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 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 02:14:31,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2023-02-15 02:14:31,072 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2023-02-15 02:14:31,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:31,073 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-02-15 02:14:31,073 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 02:14:31,073 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2023-02-15 02:14:31,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 02:14:31,074 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:31,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:31,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 02:14:31,074 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:14:31,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:31,075 INFO L85 PathProgramCache]: Analyzing trace with hash 297877557, now seen corresponding path program 1 times [2023-02-15 02:14:31,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:31,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696859338] [2023-02-15 02:14:31,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:31,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:31,166 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 02:14:31,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:31,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696859338] [2023-02-15 02:14:31,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696859338] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:31,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:31,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:14:31,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854116656] [2023-02-15 02:14:31,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:31,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:14:31,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:31,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:14:31,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:31,170 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:31,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:31,191 INFO L93 Difference]: Finished difference Result 12 states and 15 transitions. [2023-02-15 02:14:31,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:14:31,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 02:14:31,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:31,192 INFO L225 Difference]: With dead ends: 12 [2023-02-15 02:14:31,192 INFO L226 Difference]: Without dead ends: 11 [2023-02-15 02:14:31,193 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 02:14:31,194 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:31,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-15 02:14:31,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-15 02:14:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 02:14:31,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-02-15 02:14:31,198 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 8 [2023-02-15 02:14:31,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:31,198 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-15 02:14:31,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:31,199 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2023-02-15 02:14:31,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 02:14:31,199 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:31,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:31,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 02:14:31,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:14:31,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash 297871599, now seen corresponding path program 1 times [2023-02-15 02:14:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:31,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403042983] [2023-02-15 02:14:31,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:31,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:31,230 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 02:14:31,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:31,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403042983] [2023-02-15 02:14:31,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403042983] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:31,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:31,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 02:14:31,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689993974] [2023-02-15 02:14:31,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:31,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:14:31,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:31,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:14:31,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:31,234 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:31,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:31,246 INFO L93 Difference]: Finished difference Result 26 states and 35 transitions. [2023-02-15 02:14:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:14:31,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 02:14:31,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:31,248 INFO L225 Difference]: With dead ends: 26 [2023-02-15 02:14:31,248 INFO L226 Difference]: Without dead ends: 17 [2023-02-15 02:14:31,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:31,249 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:31,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-15 02:14:31,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-15 02:14:31,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 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 02:14:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2023-02-15 02:14:31,254 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 8 [2023-02-15 02:14:31,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:31,255 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-02-15 02:14:31,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-02-15 02:14:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 02:14:31,255 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:31,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:31,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 02:14:31,256 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:14:31,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:31,257 INFO L85 PathProgramCache]: Analyzing trace with hash 296084139, now seen corresponding path program 1 times [2023-02-15 02:14:31,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:31,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93833234] [2023-02-15 02:14:31,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:31,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:31,307 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 02:14:31,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:31,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93833234] [2023-02-15 02:14:31,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93833234] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:31,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:31,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:14:31,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944325030] [2023-02-15 02:14:31,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:31,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:14:31,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:31,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:14:31,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:31,330 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:31,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:31,386 INFO L93 Difference]: Finished difference Result 40 states and 54 transitions. [2023-02-15 02:14:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:14:31,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 02:14:31,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:31,388 INFO L225 Difference]: With dead ends: 40 [2023-02-15 02:14:31,391 INFO L226 Difference]: Without dead ends: 25 [2023-02-15 02:14:31,391 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 02:14:31,393 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:31,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:31,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-15 02:14:31,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-15 02:14:31,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 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 02:14:31,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2023-02-15 02:14:31,404 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 8 [2023-02-15 02:14:31,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:31,405 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-02-15 02:14:31,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:31,405 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2023-02-15 02:14:31,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 02:14:31,405 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:31,406 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:31,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 02:14:31,406 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:14:31,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1620401622, now seen corresponding path program 1 times [2023-02-15 02:14:31,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:31,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304966805] [2023-02-15 02:14:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:31,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:31,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:31,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:31,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304966805] [2023-02-15 02:14:31,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304966805] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:31,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793131725] [2023-02-15 02:14:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:31,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:31,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:31,487 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 02:14:31,490 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 02:14:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:31,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 02:14:31,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:31,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:31,645 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:31,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793131725] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:31,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:31,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 02:14:31,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763657302] [2023-02-15 02:14:31,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:31,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 02:14:31,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:31,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 02:14:31,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:14:31,647 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 02:14:31,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:31,751 INFO L93 Difference]: Finished difference Result 86 states and 118 transitions. [2023-02-15 02:14:31,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 02:14:31,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 02:14:31,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:31,753 INFO L225 Difference]: With dead ends: 86 [2023-02-15 02:14:31,753 INFO L226 Difference]: Without dead ends: 63 [2023-02-15 02:14:31,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:14:31,754 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:31,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 21 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:14:31,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-15 02:14:31,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 45. [2023-02-15 02:14:31,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 44 states have internal predecessors, (60), 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 02:14:31,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2023-02-15 02:14:31,761 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 14 [2023-02-15 02:14:31,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:31,762 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2023-02-15 02:14:31,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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 02:14:31,762 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2023-02-15 02:14:31,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-15 02:14:31,763 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:31,763 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2023-02-15 02:14:31,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 02:14:31,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:31,969 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:14:31,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:31,970 INFO L85 PathProgramCache]: Analyzing trace with hash -541145641, now seen corresponding path program 2 times [2023-02-15 02:14:31,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:31,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839262883] [2023-02-15 02:14:31,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:31,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:32,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:32,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839262883] [2023-02-15 02:14:32,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839262883] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:32,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134799704] [2023-02-15 02:14:32,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 02:14:32,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:32,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:32,147 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 02:14:32,149 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 02:14:32,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 02:14:32,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:14:32,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:14:32,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:32,238 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:32,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:32,318 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:32,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134799704] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:32,319 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:32,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 02:14:32,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061362411] [2023-02-15 02:14:32,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:32,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 02:14:32,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:32,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 02:14:32,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 02:14:32,321 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 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 02:14:32,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:32,434 INFO L93 Difference]: Finished difference Result 206 states and 290 transitions. [2023-02-15 02:14:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 02:14:32,435 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 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 32 [2023-02-15 02:14:32,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:32,436 INFO L225 Difference]: With dead ends: 206 [2023-02-15 02:14:32,436 INFO L226 Difference]: Without dead ends: 163 [2023-02-15 02:14:32,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 02:14:32,438 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 32 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:32,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 42 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:14:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-02-15 02:14:32,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 93. [2023-02-15 02:14:32,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.3369565217391304) internal successors, (123), 92 states have internal predecessors, (123), 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 02:14:32,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 123 transitions. [2023-02-15 02:14:32,449 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 123 transitions. Word has length 32 [2023-02-15 02:14:32,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:32,449 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 123 transitions. [2023-02-15 02:14:32,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 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 02:14:32,449 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 123 transitions. [2023-02-15 02:14:32,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-02-15 02:14:32,451 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:32,451 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2023-02-15 02:14:32,463 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 02:14:32,660 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,SelfDestructingSolverStorable5 [2023-02-15 02:14:32,661 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 02:14:32,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:32,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1816513305, now seen corresponding path program 3 times [2023-02-15 02:14:32,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:32,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074863674] [2023-02-15 02:14:32,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:32,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:32,923 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 20 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:32,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:32,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074863674] [2023-02-15 02:14:32,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074863674] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:32,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109474679] [2023-02-15 02:14:32,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 02:14:32,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:32,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:32,927 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 02:14:32,928 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 02:14:32,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 02:14:32,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:14:32,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 02:14:32,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:33,071 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 20 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:33,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:33,330 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 20 proven. 310 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:33,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109474679] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:33,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:33,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 02:14:33,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441563359] [2023-02-15 02:14:33,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:33,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 02:14:33,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:33,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 02:14:33,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 02:14:33,336 INFO L87 Difference]: Start difference. First operand 93 states and 123 transitions. Second operand has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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 02:14:33,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:33,459 INFO L93 Difference]: Finished difference Result 496 states and 683 transitions. [2023-02-15 02:14:33,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 02:14:33,460 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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 68 [2023-02-15 02:14:33,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:33,461 INFO L225 Difference]: With dead ends: 496 [2023-02-15 02:14:33,461 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 02:14:33,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 02:14:33,467 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 36 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:33,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 43 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:14:33,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 02:14:33,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 02:14:33,470 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 02:14:33,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 02:14:33,470 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2023-02-15 02:14:33,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:33,472 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 02:14:33,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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 02:14:33,475 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 02:14:33,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 02:14:33,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-15 02:14:33,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-15 02:14:33,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-15 02:14:33,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-15 02:14:33,485 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 02:14:33,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:33,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 02:14:33,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-02-15 02:14:33,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 02:14:33,918 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-02-15 02:14:33,918 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-02-15 02:14:33,919 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-02-15 02:14:33,919 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-02-15 02:14:33,919 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-02-15 02:14:33,919 INFO L899 garLoopResultBuilder]: For program point L15-1(lines 11 23) no Hoare annotation was computed. [2023-02-15 02:14:33,919 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 02:14:33,919 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 11 23) no Hoare annotation was computed. [2023-02-15 02:14:33,919 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 26) the Hoare annotation is: true [2023-02-15 02:14:33,920 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 02:14:33,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-02-15 02:14:33,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2023-02-15 02:14:33,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 02:14:33,920 INFO L895 garLoopResultBuilder]: At program point L18-1(lines 11 23) the Hoare annotation is: (or (<= |ULTIMATE.start_main_~i~0#1| 10) (and (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= |ULTIMATE.start_main_~up~0#1| 0))) [2023-02-15 02:14:33,920 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 14) no Hoare annotation was computed. [2023-02-15 02:14:33,920 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 23) no Hoare annotation was computed. [2023-02-15 02:14:33,923 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2023-02-15 02:14:33,929 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 02:14:33,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:14:33 BoogieIcfgContainer [2023-02-15 02:14:33,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 02:14:33,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 02:14:33,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 02:14:33,942 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 02:14:33,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:30" (3/4) ... [2023-02-15 02:14:33,945 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 02:14:33,952 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 02:14:33,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-15 02:14:33,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 02:14:33,985 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 02:14:33,985 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 02:14:33,986 INFO L158 Benchmark]: Toolchain (without parser) took 3700.01ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 126.6MB in the beginning and 123.7MB in the end (delta: 2.9MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2023-02-15 02:14:33,986 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:14:33,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 154.30ms. Allocated memory is still 155.2MB. Free memory was 126.3MB in the beginning and 117.3MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 02:14:33,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.91ms. Allocated memory is still 155.2MB. Free memory was 117.3MB in the beginning and 116.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 02:14:33,987 INFO L158 Benchmark]: Boogie Preprocessor took 21.72ms. Allocated memory is still 155.2MB. Free memory was 116.1MB in the beginning and 114.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:14:33,987 INFO L158 Benchmark]: RCFGBuilder took 214.01ms. Allocated memory is still 155.2MB. Free memory was 114.9MB in the beginning and 105.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 02:14:33,988 INFO L158 Benchmark]: TraceAbstraction took 3236.99ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 105.2MB in the beginning and 125.8MB in the end (delta: -20.6MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-02-15 02:14:33,988 INFO L158 Benchmark]: Witness Printer took 43.47ms. Allocated memory is still 186.6MB. Free memory was 125.8MB in the beginning and 123.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 02:14:33,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 123.7MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 154.30ms. Allocated memory is still 155.2MB. Free memory was 126.3MB in the beginning and 117.3MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.91ms. Allocated memory is still 155.2MB. Free memory was 117.3MB in the beginning and 116.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.72ms. Allocated memory is still 155.2MB. Free memory was 116.1MB in the beginning and 114.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 214.01ms. Allocated memory is still 155.2MB. Free memory was 114.9MB in the beginning and 105.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3236.99ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 105.2MB in the beginning and 125.8MB in the end (delta: -20.6MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 43.47ms. Allocated memory is still 186.6MB. Free memory was 125.8MB in the beginning and 123.7MB 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 364 IncrementalHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 71 mSDtfsCounter, 364 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 252 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=6, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 89 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 57 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 903 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 360 ConstructedInterpolants, 0 QuantifiedInterpolants, 1002 SizeOfPredicates, 3 NumberOfNonLiveVariables, 186 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 90/1188 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 4 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: i <= 10 || (i <= 2147483647 && up <= 0) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-15 02:14:34,017 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