./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/AlternKonv.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e 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/AlternKonv.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 9816d5cc9e8c1fba9291af90498afaa319416e5c56fa3cf3ce8da9d63d3e9939 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:48:13,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:48:13,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:48:13,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:48:13,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:48:13,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:48:13,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:48:13,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:48:13,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:48:13,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:48:13,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:48:13,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:48:13,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:48:13,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:48:13,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:48:13,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:48:13,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:48:13,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:48:13,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:48:13,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:48:13,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:48:13,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:48:13,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:48:13,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:48:13,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:48:13,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:48:13,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:48:13,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:48:13,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:48:13,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:48:13,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:48:13,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:48:13,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:48:13,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:48:13,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:48:13,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:48:13,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:48:13,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:48:13,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:48:13,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:48:13,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:48:13,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 23:48:13,210 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:48:13,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:48:13,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:48:13,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:48:13,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:48:13,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:48:13,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:48:13,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:48:13,228 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:48:13,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:48:13,229 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:48:13,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:48:13,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:48:13,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:48:13,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:48:13,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:48:13,229 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:48:13,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:48:13,229 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:48:13,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:48:13,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:48:13,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:48:13,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:48:13,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:48:13,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:48:13,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:48:13,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:48:13,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:48:13,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:48:13,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:48:13,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:48:13,231 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:48:13,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:48:13,231 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:48:13,231 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9816d5cc9e8c1fba9291af90498afaa319416e5c56fa3cf3ce8da9d63d3e9939 [2023-02-18 23:48:13,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:48:13,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:48:13,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:48:13,461 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:48:13,462 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:48:13,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/AlternKonv.c [2023-02-18 23:48:14,403 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:48:14,535 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:48:14,536 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/AlternKonv.c [2023-02-18 23:48:14,539 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66467525e/4d68ef9152914176858ea30039c0968d/FLAGfa1f02e27 [2023-02-18 23:48:14,548 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66467525e/4d68ef9152914176858ea30039c0968d [2023-02-18 23:48:14,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:48:14,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:48:14,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:48:14,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:48:14,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:48:14,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c3d927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14, skipping insertion in model container [2023-02-18 23:48:14,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:48:14,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:48:14,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:48:14,661 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:48:14,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:48:14,676 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:48:14,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14 WrapperNode [2023-02-18 23:48:14,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:48:14,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:48:14,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:48:14,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:48:14,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,694 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-02-18 23:48:14,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:48:14,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:48:14,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:48:14,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:48:14,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,704 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:48:14,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:48:14,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:48:14,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:48:14,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (1/1) ... [2023-02-18 23:48:14,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:48:14,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:48:14,727 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) [2023-02-18 23:48:14,728 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 [2023-02-18 23:48:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:48:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:48:14,790 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:48:14,791 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:48:14,900 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:48:14,904 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:48:14,904 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 23:48:14,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:48:14 BoogieIcfgContainer [2023-02-18 23:48:14,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:48:14,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:48:14,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:48:14,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:48:14,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:48:14" (1/3) ... [2023-02-18 23:48:14,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d92c2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:48:14, skipping insertion in model container [2023-02-18 23:48:14,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:48:14" (2/3) ... [2023-02-18 23:48:14,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d92c2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:48:14, skipping insertion in model container [2023-02-18 23:48:14,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:48:14" (3/3) ... [2023-02-18 23:48:14,910 INFO L112 eAbstractionObserver]: Analyzing ICFG AlternKonv.c [2023-02-18 23:48:14,924 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:48:14,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-18 23:48:14,963 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:48:14,967 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;@608297c7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:48:14,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-18 23:48:14,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 26 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) [2023-02-18 23:48:14,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:48:14,984 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:14,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:48:14,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:48:14,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:14,988 INFO L85 PathProgramCache]: Analyzing trace with hash 28700425, now seen corresponding path program 1 times [2023-02-18 23:48:14,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:14,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900746239] [2023-02-18 23:48:14,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:14,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:15,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:15,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900746239] [2023-02-18 23:48:15,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900746239] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:48:15,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:48:15,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:48:15,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880076496] [2023-02-18 23:48:15,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:48:15,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:48:15,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:15,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:48:15,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:48:15,147 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 26 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:15,233 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2023-02-18 23:48:15,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:48:15,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 23:48:15,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:15,247 INFO L225 Difference]: With dead ends: 55 [2023-02-18 23:48:15,260 INFO L226 Difference]: Without dead ends: 23 [2023-02-18 23:48:15,263 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 [2023-02-18 23:48:15,265 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:15,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 26 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:48:15,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-18 23:48:15,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-18 23:48:15,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 22 states have internal predecessors, (26), 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) [2023-02-18 23:48:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-02-18 23:48:15,301 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 5 [2023-02-18 23:48:15,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:15,302 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-02-18 23:48:15,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,302 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-02-18 23:48:15,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:48:15,302 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:15,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:48:15,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:48:15,303 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:48:15,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:15,303 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2023-02-18 23:48:15,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:15,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899862588] [2023-02-18 23:48:15,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:15,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:15,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:15,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899862588] [2023-02-18 23:48:15,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899862588] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:48:15,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:48:15,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:48:15,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788670007] [2023-02-18 23:48:15,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:48:15,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:48:15,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:15,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:48:15,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:48:15,346 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:15,396 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2023-02-18 23:48:15,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:48:15,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 23:48:15,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:15,397 INFO L225 Difference]: With dead ends: 30 [2023-02-18 23:48:15,397 INFO L226 Difference]: Without dead ends: 29 [2023-02-18 23:48:15,398 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 [2023-02-18 23:48:15,398 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:15,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:48:15,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-18 23:48:15,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2023-02-18 23:48:15,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 25 states have internal predecessors, (30), 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) [2023-02-18 23:48:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-02-18 23:48:15,404 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 5 [2023-02-18 23:48:15,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:15,404 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-02-18 23:48:15,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,404 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-02-18 23:48:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:48:15,404 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:15,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:48:15,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:48:15,405 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:48:15,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash 889713244, now seen corresponding path program 1 times [2023-02-18 23:48:15,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:15,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347576158] [2023-02-18 23:48:15,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:15,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:15,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:15,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:15,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347576158] [2023-02-18 23:48:15,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347576158] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:48:15,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:48:15,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:48:15,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943030091] [2023-02-18 23:48:15,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:48:15,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:48:15,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:15,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:48:15,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:48:15,426 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:15,450 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2023-02-18 23:48:15,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:48:15,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 23:48:15,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:15,451 INFO L225 Difference]: With dead ends: 26 [2023-02-18 23:48:15,451 INFO L226 Difference]: Without dead ends: 23 [2023-02-18 23:48:15,451 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 [2023-02-18 23:48:15,452 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:15,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:48:15,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-18 23:48:15,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-18 23:48:15,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-02-18 23:48:15,456 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 6 [2023-02-18 23:48:15,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:15,456 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-02-18 23:48:15,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,456 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-02-18 23:48:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:48:15,464 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:15,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:48:15,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 23:48:15,465 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:48:15,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:15,465 INFO L85 PathProgramCache]: Analyzing trace with hash 889692391, now seen corresponding path program 1 times [2023-02-18 23:48:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:15,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975422202] [2023-02-18 23:48:15,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:15,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:15,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:15,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:15,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975422202] [2023-02-18 23:48:15,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975422202] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:48:15,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:48:15,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:48:15,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461812578] [2023-02-18 23:48:15,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:48:15,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:48:15,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:15,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:48:15,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:48:15,492 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:15,513 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2023-02-18 23:48:15,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:48:15,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 23:48:15,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:15,514 INFO L225 Difference]: With dead ends: 23 [2023-02-18 23:48:15,514 INFO L226 Difference]: Without dead ends: 22 [2023-02-18 23:48:15,515 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 [2023-02-18 23:48:15,516 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:15,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:48:15,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-18 23:48:15,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-18 23:48:15,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 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) [2023-02-18 23:48:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-02-18 23:48:15,523 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 6 [2023-02-18 23:48:15,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:15,523 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-02-18 23:48:15,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,523 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-02-18 23:48:15,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 23:48:15,524 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:15,524 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:48:15,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:48:15,524 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:48:15,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:15,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1326221127, now seen corresponding path program 1 times [2023-02-18 23:48:15,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:15,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595464157] [2023-02-18 23:48:15,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:15,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:15,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:15,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:15,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595464157] [2023-02-18 23:48:15,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595464157] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:48:15,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:48:15,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:48:15,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257199432] [2023-02-18 23:48:15,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:48:15,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:48:15,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:15,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:48:15,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:48:15,558 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:15,614 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2023-02-18 23:48:15,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:48:15,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 23:48:15,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:15,616 INFO L225 Difference]: With dead ends: 44 [2023-02-18 23:48:15,616 INFO L226 Difference]: Without dead ends: 27 [2023-02-18 23:48:15,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:48:15,617 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:15,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 16 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:48:15,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-18 23:48:15,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-18 23:48:15,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.28) internal successors, (32), 26 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) [2023-02-18 23:48:15,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2023-02-18 23:48:15,620 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 10 [2023-02-18 23:48:15,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:15,620 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2023-02-18 23:48:15,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,621 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-02-18 23:48:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 23:48:15,621 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:15,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:48:15,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 23:48:15,621 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:48:15,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:15,622 INFO L85 PathProgramCache]: Analyzing trace with hash 889642446, now seen corresponding path program 1 times [2023-02-18 23:48:15,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:15,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068595861] [2023-02-18 23:48:15,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:15,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:15,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:15,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:15,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068595861] [2023-02-18 23:48:15,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068595861] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:48:15,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:48:15,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:48:15,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28794059] [2023-02-18 23:48:15,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:48:15,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:48:15,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:15,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:48:15,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:48:15,638 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:15,657 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2023-02-18 23:48:15,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:48:15,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 23:48:15,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:15,658 INFO L225 Difference]: With dead ends: 27 [2023-02-18 23:48:15,658 INFO L226 Difference]: Without dead ends: 26 [2023-02-18 23:48:15,658 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 [2023-02-18 23:48:15,659 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:15,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:48:15,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-18 23:48:15,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-02-18 23:48:15,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 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) [2023-02-18 23:48:15,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-02-18 23:48:15,662 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 10 [2023-02-18 23:48:15,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:15,663 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-02-18 23:48:15,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:15,663 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-02-18 23:48:15,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 23:48:15,663 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:15,663 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:48:15,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 23:48:15,664 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 23:48:15,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:15,664 INFO L85 PathProgramCache]: Analyzing trace with hash 966435069, now seen corresponding path program 1 times [2023-02-18 23:48:15,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:15,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443418650] [2023-02-18 23:48:15,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:15,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:15,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:15,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:15,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443418650] [2023-02-18 23:48:15,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443418650] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:48:15,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:48:15,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:48:15,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522374706] [2023-02-18 23:48:15,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:48:15,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:48:15,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:15,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:48:15,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:48:15,718 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-02-18 23:48:15,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:15,742 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2023-02-18 23:48:15,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:48:15,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-18 23:48:15,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:15,743 INFO L225 Difference]: With dead ends: 26 [2023-02-18 23:48:15,743 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 23:48:15,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:48:15,744 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 24 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:15,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:48:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 23:48:15,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 23:48:15,750 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) [2023-02-18 23:48:15,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 23:48:15,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-02-18 23:48:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:15,750 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 23:48:15,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2023-02-18 23:48:15,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 23:48:15,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 23:48:15,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-02-18 23:48:15,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-02-18 23:48:15,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-02-18 23:48:15,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-02-18 23:48:15,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-02-18 23:48:15,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-02-18 23:48:15,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-02-18 23:48:15,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-02-18 23:48:15,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 23:48:15,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 23:48:15,762 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2023-02-18 23:48:15,763 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-02-18 23:48:15,763 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-02-18 23:48:15,763 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2023-02-18 23:48:15,763 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2023-02-18 23:48:15,763 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 25) the Hoare annotation is: true [2023-02-18 23:48:15,763 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-02-18 23:48:15,764 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 23:48:15,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-02-18 23:48:15,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2023-02-18 23:48:15,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 23:48:15,764 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-02-18 23:48:15,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2023-02-18 23:48:15,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 23:48:15,764 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2023-02-18 23:48:15,765 INFO L899 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2023-02-18 23:48:15,765 INFO L899 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2023-02-18 23:48:15,765 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-02-18 23:48:15,765 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 23:48:15,765 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 9 22) no Hoare annotation was computed. [2023-02-18 23:48:15,765 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2023-02-18 23:48:15,765 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2023-02-18 23:48:15,766 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 9 22) the Hoare annotation is: (let ((.cse3 (+ |ULTIMATE.start_main_~i~0#1| 2147483648))) (let ((.cse0 (<= |ULTIMATE.start_main_~i~0#1| 2147483648)) (.cse2 (<= |ULTIMATE.start_main_~i~0#1| 2147483647)) (.cse1 (<= 0 .cse3))) (or (and .cse0 .cse1 .cse2) (and .cse0 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse1 .cse2 (not (<= .cse3 0))) (and .cse0 .cse2 (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2))) (and .cse0 .cse2 .cse1)))) [2023-02-18 23:48:15,766 INFO L899 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2023-02-18 23:48:15,766 INFO L899 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2023-02-18 23:48:15,766 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 21) no Hoare annotation was computed. [2023-02-18 23:48:15,766 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-02-18 23:48:15,768 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:48:15,770 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 23:48:15,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 11:48:15 BoogieIcfgContainer [2023-02-18 23:48:15,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 23:48:15,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 23:48:15,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 23:48:15,787 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 23:48:15,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:48:14" (3/4) ... [2023-02-18 23:48:15,790 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 23:48:15,796 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 23:48:15,797 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 23:48:15,797 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 23:48:15,820 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 23:48:15,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 23:48:15,825 INFO L158 Benchmark]: Toolchain (without parser) took 1273.88ms. Allocated memory is still 107.0MB. Free memory was 64.7MB in the beginning and 70.4MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:48:15,825 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:48:15,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 125.28ms. Allocated memory is still 107.0MB. Free memory was 64.5MB in the beginning and 55.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 23:48:15,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.62ms. Allocated memory is still 107.0MB. Free memory was 55.5MB in the beginning and 53.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:48:15,826 INFO L158 Benchmark]: Boogie Preprocessor took 10.34ms. Allocated memory is still 107.0MB. Free memory was 53.9MB in the beginning and 53.0MB in the end (delta: 977.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:48:15,826 INFO L158 Benchmark]: RCFGBuilder took 200.01ms. Allocated memory is still 107.0MB. Free memory was 53.0MB in the beginning and 44.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 23:48:15,826 INFO L158 Benchmark]: TraceAbstraction took 879.82ms. Allocated memory is still 107.0MB. Free memory was 43.3MB in the beginning and 73.1MB in the end (delta: -29.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:48:15,827 INFO L158 Benchmark]: Witness Printer took 37.26ms. Allocated memory is still 107.0MB. Free memory was 73.1MB in the beginning and 70.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:48:15,828 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 125.28ms. Allocated memory is still 107.0MB. Free memory was 64.5MB in the beginning and 55.5MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.62ms. Allocated memory is still 107.0MB. Free memory was 55.5MB in the beginning and 53.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.34ms. Allocated memory is still 107.0MB. Free memory was 53.9MB in the beginning and 53.0MB in the end (delta: 977.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 200.01ms. Allocated memory is still 107.0MB. Free memory was 53.0MB in the beginning and 44.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 879.82ms. Allocated memory is still 107.0MB. Free memory was 43.3MB in the beginning and 73.1MB in the end (delta: -29.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.26ms. Allocated memory is still 107.0MB. Free memory was 73.1MB in the beginning and 70.4MB in the end (delta: 2.6MB). 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: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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: 19]: 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, 27 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 72 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 59 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: ((((i <= 2147483648 && 0 <= i + 2147483648) && i <= 2147483647) || ((((i <= 2147483648 && 0 <= i) && 0 <= i + 2147483648) && i <= 2147483647) && !(i + 2147483648 <= 0))) || ((i <= 2147483648 && i <= 2147483647) && 0 <= i + 2)) || ((i <= 2147483648 && i <= 2147483647) && 0 <= i + 2147483648) RESULT: Ultimate proved your program to be correct! [2023-02-18 23:48:15,851 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE