./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaB15.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 26d01a9c 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/PastaB15.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 856b26ed1b95b9c5e409c9e42274459ceef7cfabfe29e933603f5e3c1c7ce07f --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 08:33:33,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:33:33,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:33:33,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:33:33,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:33:33,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:33:33,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:33:33,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:33:33,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:33:33,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:33:33,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:33:33,545 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:33:33,545 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:33:33,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:33:33,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:33:33,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:33:33,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:33:33,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:33:33,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:33:33,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:33:33,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:33:33,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:33:33,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:33:33,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:33:33,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:33:33,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:33:33,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:33:33,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:33:33,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:33:33,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:33:33,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:33:33,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:33:33,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:33:33,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:33:33,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:33:33,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:33:33,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:33:33,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:33:33,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:33:33,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:33:33,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:33:33,574 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 08:33:33,596 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:33:33,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:33:33,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:33:33,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:33:33,597 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 08:33:33,598 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 08:33:33,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:33:33,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:33:33,598 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:33:33,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:33:33,599 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:33:33,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:33:33,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:33:33,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 08:33:33,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 08:33:33,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 08:33:33,600 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 08:33:33,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:33:33,601 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:33:33,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 08:33:33,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:33:33,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:33:33,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 08:33:33,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 08:33:33,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:33:33,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 08:33:33,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 08:33:33,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:33:33,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 08:33:33,603 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 08:33:33,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 08:33:33,603 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 08:33:33,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 08:33:33,603 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 08:33:33,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 856b26ed1b95b9c5e409c9e42274459ceef7cfabfe29e933603f5e3c1c7ce07f [2023-02-18 08:33:33,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:33:33,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:33:33,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:33:33,827 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:33:33,829 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:33:33,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB15.c [2023-02-18 08:33:34,876 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:33:35,012 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:33:35,013 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB15.c [2023-02-18 08:33:35,021 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bcd8c09/766c56890c2e4de8962b5e5c0fd9df36/FLAG3226dedb2 [2023-02-18 08:33:35,036 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bcd8c09/766c56890c2e4de8962b5e5c0fd9df36 [2023-02-18 08:33:35,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:33:35,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:33:35,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:33:35,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:33:35,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:33:35,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e49a7ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35, skipping insertion in model container [2023-02-18 08:33:35,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:33:35,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:33:35,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:33:35,179 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:33:35,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:33:35,199 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:33:35,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35 WrapperNode [2023-02-18 08:33:35,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:33:35,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:33:35,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:33:35,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:33:35,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,222 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-02-18 08:33:35,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:33:35,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:33:35,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:33:35,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:33:35,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,235 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:33:35,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:33:35,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:33:35,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:33:35,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (1/1) ... [2023-02-18 08:33:35,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 08:33:35,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:33:35,275 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 08:33:35,297 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 08:33:35,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:33:35,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:33:35,354 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:33:35,355 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:33:35,416 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:33:35,421 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:33:35,421 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-18 08:33:35,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:33:35 BoogieIcfgContainer [2023-02-18 08:33:35,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:33:35,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 08:33:35,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 08:33:35,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 08:33:35,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 08:33:35" (1/3) ... [2023-02-18 08:33:35,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e027df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:33:35, skipping insertion in model container [2023-02-18 08:33:35,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:33:35" (2/3) ... [2023-02-18 08:33:35,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e027df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:33:35, skipping insertion in model container [2023-02-18 08:33:35,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:33:35" (3/3) ... [2023-02-18 08:33:35,428 INFO L112 eAbstractionObserver]: Analyzing ICFG PastaB15.c [2023-02-18 08:33:35,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 08:33:35,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-18 08:33:35,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 08:33:35,472 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;@4d36e056, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 08:33:35,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-18 08:33:35,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:33:35,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 08:33:35,479 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:33:35,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 08:33:35,480 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:33:35,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:33:35,486 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2023-02-18 08:33:35,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:33:35,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874776619] [2023-02-18 08:33:35,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:33:35,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:33:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:33:35,660 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 08:33:35,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:33:35,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874776619] [2023-02-18 08:33:35,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874776619] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:33:35,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:33:35,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 08:33:35,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252798640] [2023-02-18 08:33:35,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:33:35,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:33:35,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:33:35,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:33:35,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:33:35,687 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 08:33:35,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:33:35,722 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2023-02-18 08:33:35,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 08:33:35,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 08:33:35,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:33:35,729 INFO L225 Difference]: With dead ends: 37 [2023-02-18 08:33:35,729 INFO L226 Difference]: Without dead ends: 15 [2023-02-18 08:33:35,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 08:33:35,733 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 25 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:33:35,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 22 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:33:35,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-18 08:33:35,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-02-18 08:33:35,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.6) internal successors, (16), 13 states have internal predecessors, (16), 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 08:33:35,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-02-18 08:33:35,752 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2023-02-18 08:33:35,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:33:35,753 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-02-18 08:33:35,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 08:33:35,753 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-02-18 08:33:35,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 08:33:35,754 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:33:35,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 08:33:35,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 08:33:35,754 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:33:35,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:33:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash 889698349, now seen corresponding path program 1 times [2023-02-18 08:33:35,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:33:35,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901967614] [2023-02-18 08:33:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:33:35,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:33:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:33:35,774 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 08:33:35,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:33:35,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901967614] [2023-02-18 08:33:35,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901967614] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:33:35,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:33:35,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:33:35,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89690323] [2023-02-18 08:33:35,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:33:35,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:33:35,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:33:35,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:33:35,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:33:35,777 INFO L87 Difference]: Start difference. First operand 14 states and 16 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 08:33:35,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:33:35,783 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2023-02-18 08:33:35,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:33:35,784 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 08:33:35,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:33:35,784 INFO L225 Difference]: With dead ends: 14 [2023-02-18 08:33:35,785 INFO L226 Difference]: Without dead ends: 13 [2023-02-18 08:33:35,785 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 08:33:35,786 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 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 [2023-02-18 08:33:35,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:33:35,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-18 08:33:35,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-18 08:33:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.5) internal successors, (15), 12 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) [2023-02-18 08:33:35,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2023-02-18 08:33:35,792 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 6 [2023-02-18 08:33:35,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:33:35,792 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-02-18 08:33:35,792 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 08:33:35,792 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-02-18 08:33:35,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 08:33:35,793 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:33:35,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:33:35,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 08:33:35,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:33:35,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:33:35,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1810845099, now seen corresponding path program 1 times [2023-02-18 08:33:35,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:33:35,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366900326] [2023-02-18 08:33:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:33:35,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:33:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:33:35,839 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 08:33:35,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:33:35,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366900326] [2023-02-18 08:33:35,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366900326] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:33:35,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:33:35,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 08:33:35,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165797919] [2023-02-18 08:33:35,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:33:35,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:33:35,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:33:35,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:33:35,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:33:35,842 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2023-02-18 08:33:35,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:33:35,878 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2023-02-18 08:33:35,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 08:33:35,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2023-02-18 08:33:35,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:33:35,879 INFO L225 Difference]: With dead ends: 19 [2023-02-18 08:33:35,879 INFO L226 Difference]: Without dead ends: 18 [2023-02-18 08:33:35,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 08:33:35,881 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:33:35,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:33:35,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-18 08:33:35,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2023-02-18 08:33:35,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:33:35,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-02-18 08:33:35,889 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 7 [2023-02-18 08:33:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:33:35,890 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-02-18 08:33:35,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2023-02-18 08:33:35,890 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-02-18 08:33:35,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 08:33:35,890 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:33:35,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:33:35,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 08:33:35,890 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:33:35,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:33:35,891 INFO L85 PathProgramCache]: Analyzing trace with hash 301623279, now seen corresponding path program 1 times [2023-02-18 08:33:35,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:33:35,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436895107] [2023-02-18 08:33:35,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:33:35,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:33:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:33:35,958 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 08:33:35,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:33:35,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436895107] [2023-02-18 08:33:35,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436895107] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:33:35,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:33:35,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:33:35,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377861055] [2023-02-18 08:33:35,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:33:35,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:33:35,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:33:35,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:33:35,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:33:35,960 INFO L87 Difference]: Start difference. First operand 15 states and 17 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) [2023-02-18 08:33:35,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:33:35,981 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-02-18 08:33:35,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:33:35,981 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 [2023-02-18 08:33:35,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:33:35,982 INFO L225 Difference]: With dead ends: 15 [2023-02-18 08:33:35,982 INFO L226 Difference]: Without dead ends: 14 [2023-02-18 08:33:35,982 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 08:33:35,983 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:33:35,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:33:35,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-18 08:33:35,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-18 08:33:35,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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 08:33:35,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-02-18 08:33:35,998 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2023-02-18 08:33:35,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:33:35,998 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-02-18 08:33:35,998 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) [2023-02-18 08:33:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-02-18 08:33:35,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 08:33:35,999 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:33:35,999 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:33:35,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 08:33:35,999 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:33:36,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:33:36,000 INFO L85 PathProgramCache]: Analyzing trace with hash 2097163889, now seen corresponding path program 1 times [2023-02-18 08:33:36,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:33:36,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560715275] [2023-02-18 08:33:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:33:36,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:33:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:33:36,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 08:33:36,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:33:36,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560715275] [2023-02-18 08:33:36,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560715275] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:33:36,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397591284] [2023-02-18 08:33:36,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:33:36,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:33:36,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:33:36,072 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) [2023-02-18 08:33:36,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 08:33:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:33:36,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 08:33:36,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:33:36,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 08:33:36,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:33:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:33:36,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397591284] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:33:36,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:33:36,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6] total 10 [2023-02-18 08:33:36,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777333457] [2023-02-18 08:33:36,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:33:36,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-18 08:33:36,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:33:36,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-18 08:33:36,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-02-18 08:33:36,189 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:33:36,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:33:36,212 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2023-02-18 08:33:36,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 08:33:36,213 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 08:33:36,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:33:36,213 INFO L225 Difference]: With dead ends: 16 [2023-02-18 08:33:36,213 INFO L226 Difference]: Without dead ends: 15 [2023-02-18 08:33:36,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-02-18 08:33:36,215 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:33:36,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 7 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:33:36,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-18 08:33:36,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2023-02-18 08:33:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 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) [2023-02-18 08:33:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2023-02-18 08:33:36,217 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2023-02-18 08:33:36,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:33:36,218 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-02-18 08:33:36,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:33:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-02-18 08:33:36,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 08:33:36,218 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:33:36,219 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 08:33:36,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 08:33:36,423 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 [2023-02-18 08:33:36,424 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 08:33:36,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:33:36,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1034837235, now seen corresponding path program 1 times [2023-02-18 08:33:36,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:33:36,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346839377] [2023-02-18 08:33:36,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:33:36,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:33:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:33:36,474 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 08:33:36,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:33:36,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346839377] [2023-02-18 08:33:36,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346839377] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:33:36,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176167423] [2023-02-18 08:33:36,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:33:36,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:33:36,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:33:36,477 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) [2023-02-18 08:33:36,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 08:33:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:33:36,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 08:33:36,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:33:36,541 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 08:33:36,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:33:36,573 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:33:36,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176167423] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:33:36,576 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:33:36,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 5] total 8 [2023-02-18 08:33:36,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296549422] [2023-02-18 08:33:36,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:33:36,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-18 08:33:36,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:33:36,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-18 08:33:36,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-02-18 08:33:36,580 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 08:33:36,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:33:36,616 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-02-18 08:33:36,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 08:33:36,617 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 08:33:36,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:33:36,617 INFO L225 Difference]: With dead ends: 15 [2023-02-18 08:33:36,617 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 08:33:36,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-02-18 08:33:36,618 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:33:36,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:33:36,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 08:33:36,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 08:33:36,625 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 08:33:36,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 08:33:36,625 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-02-18 08:33:36,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:33:36,626 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:33:36,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 08:33:36,626 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 08:33:36,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 08:33:36,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-18 08:33:36,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-18 08:33:36,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-18 08:33:36,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-18 08:33:36,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 08:33:36,833 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 [2023-02-18 08:33:36,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 08:33:36,838 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-02-18 08:33:36,839 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 08:33:36,839 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-02-18 08:33:36,839 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2023-02-18 08:33:36,840 INFO L899 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2023-02-18 08:33:36,840 INFO L899 garLoopResultBuilder]: For program point L13-2(lines 13 18) no Hoare annotation was computed. [2023-02-18 08:33:36,840 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 08:33:36,840 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 21) the Hoare annotation is: (let ((.cse0 (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)))) (or .cse0 (and .cse0 (<= 0 (+ 2147483647 |ULTIMATE.start_main_~x~0#1|))))) [2023-02-18 08:33:36,840 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 08:33:36,840 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-02-18 08:33:36,840 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-02-18 08:33:36,840 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 08:33:36,840 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-02-18 08:33:36,841 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2023-02-18 08:33:36,841 INFO L895 garLoopResultBuilder]: At program point L14-2(lines 14 17) the Hoare annotation is: (let ((.cse0 (>= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648))) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~y~0#1| 2147483647))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) (<= 0 (+ 2147483647 |ULTIMATE.start_main_~x~0#1|)) .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4))) [2023-02-18 08:33:36,841 INFO L895 garLoopResultBuilder]: At program point L14-3(lines 13 18) the Hoare annotation is: (let ((.cse1 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse0 (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)))) (let ((.cse2 (let ((.cse6 (<= 0 (+ 2147483647 |ULTIMATE.start_main_~x~0#1|)))) (let ((.cse5 (>= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) (.cse4 (let ((.cse7 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse8 (or .cse0 (and .cse0 .cse6)))) (or (and .cse1 .cse7 .cse8) (and .cse7 .cse8))))) (or (and .cse0 .cse3 .cse4) (and .cse5 .cse0 .cse6 .cse3 .cse4) (and .cse5 .cse0 .cse3 .cse4)))))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2) (and .cse0 .cse1 (<= 0 (+ 2147483647 |ULTIMATE.start_main_~y~0#1|)) .cse2)))) [2023-02-18 08:33:36,844 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-02-18 08:33:36,846 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 08:33:36,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 08:33:36 BoogieIcfgContainer [2023-02-18 08:33:36,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 08:33:36,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 08:33:36,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 08:33:36,872 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 08:33:36,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:33:35" (3/4) ... [2023-02-18 08:33:36,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 08:33:36,880 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 08:33:36,880 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 08:33:36,880 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 08:33:36,907 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 08:33:36,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 08:33:36,908 INFO L158 Benchmark]: Toolchain (without parser) took 1868.77ms. Allocated memory is still 163.6MB. Free memory was 134.4MB in the beginning and 88.7MB in the end (delta: 45.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-02-18 08:33:36,908 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory was 89.1MB in the beginning and 89.1MB in the end (delta: 33.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:33:36,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.24ms. Allocated memory is still 163.6MB. Free memory was 134.2MB in the beginning and 126.6MB in the end (delta: 7.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-02-18 08:33:36,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.92ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 125.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:33:36,908 INFO L158 Benchmark]: Boogie Preprocessor took 12.03ms. Allocated memory is still 163.6MB. Free memory was 125.5MB in the beginning and 124.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:33:36,908 INFO L158 Benchmark]: RCFGBuilder took 183.99ms. Allocated memory is still 163.6MB. Free memory was 124.1MB in the beginning and 115.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 08:33:36,909 INFO L158 Benchmark]: TraceAbstraction took 1448.05ms. Allocated memory is still 163.6MB. Free memory was 114.7MB in the beginning and 91.9MB in the end (delta: 22.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2023-02-18 08:33:36,909 INFO L158 Benchmark]: Witness Printer took 35.28ms. Allocated memory is still 163.6MB. Free memory was 91.9MB in the beginning and 88.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:33:36,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory was 89.1MB in the beginning and 89.1MB in the end (delta: 33.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.24ms. Allocated memory is still 163.6MB. Free memory was 134.2MB in the beginning and 126.6MB in the end (delta: 7.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.92ms. Allocated memory is still 163.6MB. Free memory was 126.6MB in the beginning and 125.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.03ms. Allocated memory is still 163.6MB. Free memory was 125.5MB in the beginning and 124.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 183.99ms. Allocated memory is still 163.6MB. Free memory was 124.1MB in the beginning and 115.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1448.05ms. Allocated memory is still 163.6MB. Free memory was 114.7MB in the beginning and 91.9MB in the end (delta: 22.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. * Witness Printer took 35.28ms. Allocated memory is still 163.6MB. Free memory was 91.9MB in the beginning and 88.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: 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: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: 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, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 35 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 29 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 28, 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, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 625 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 449 SizeOfPredicates, 7 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 5/18 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: 5]: Loop Invariant Derived loop invariant: 0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((x >= y && 0 <= z + 2147483648) && x <= y) && x <= 2147483647) && 0 <= 2147483647 + y) && 0 <= 2147483647 + x) && y <= 2147483647) || ((((x >= y && 0 <= z + 2147483648) && x <= y) && x <= 2147483647) && y <= 2147483647) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (((0 <= z + 2147483648 && x <= y) && ((((0 <= z + 2147483648 && y <= 2147483647) && (((x <= y && x <= 2147483647) && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))) || (x <= 2147483647 && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))))) || ((((x >= y && 0 <= z + 2147483648) && 0 <= 2147483647 + x) && y <= 2147483647) && (((x <= y && x <= 2147483647) && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))) || (x <= 2147483647 && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x)))))) || (((x >= y && 0 <= z + 2147483648) && y <= 2147483647) && (((x <= y && x <= 2147483647) && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))) || (x <= 2147483647 && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))))))) || (0 <= z + 2147483648 && ((((0 <= z + 2147483648 && y <= 2147483647) && (((x <= y && x <= 2147483647) && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))) || (x <= 2147483647 && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))))) || ((((x >= y && 0 <= z + 2147483648) && 0 <= 2147483647 + x) && y <= 2147483647) && (((x <= y && x <= 2147483647) && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))) || (x <= 2147483647 && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x)))))) || (((x >= y && 0 <= z + 2147483648) && y <= 2147483647) && (((x <= y && x <= 2147483647) && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))) || (x <= 2147483647 && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x)))))))) || (((0 <= z + 2147483648 && x <= y) && 0 <= 2147483647 + y) && ((((0 <= z + 2147483648 && y <= 2147483647) && (((x <= y && x <= 2147483647) && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))) || (x <= 2147483647 && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))))) || ((((x >= y && 0 <= z + 2147483648) && 0 <= 2147483647 + x) && y <= 2147483647) && (((x <= y && x <= 2147483647) && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))) || (x <= 2147483647 && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x)))))) || (((x >= y && 0 <= z + 2147483648) && y <= 2147483647) && (((x <= y && x <= 2147483647) && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))) || (x <= 2147483647 && (0 <= z + 2147483648 || (0 <= z + 2147483648 && 0 <= 2147483647 + x))))))) RESULT: Ultimate proved your program to be correct! [2023-02-18 08:33:36,931 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