./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a31fd051 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.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 096bafbba8d51323312e8aef69baa45c66c17c65b2ec8717873d6ff292690721 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:05:22,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:05:22,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:05:22,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:05:22,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:05:22,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:05:22,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:05:22,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:05:22,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:05:22,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:05:22,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:05:22,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:05:22,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:05:22,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:05:22,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:05:22,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:05:22,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:05:22,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:05:22,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:05:22,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:05:22,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:05:22,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:05:22,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:05:22,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:05:22,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:05:22,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:05:22,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:05:22,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:05:22,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:05:22,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:05:22,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:05:22,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:05:22,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:05:22,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:05:22,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:05:22,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:05:22,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:05:22,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:05:22,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:05:22,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:05:22,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:05:22,428 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 14:05:22,443 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:05:22,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:05:22,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:05:22,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:05:22,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 14:05:22,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 14:05:22,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:05:22,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:05:22,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:05:22,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 14:05:22,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:05:22,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 14:05:22,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 14:05:22,448 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 14:05:22,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096bafbba8d51323312e8aef69baa45c66c17c65b2ec8717873d6ff292690721 [2023-02-15 14:05:22,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:05:22,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:05:22,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:05:22,699 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:05:22,699 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:05:22,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2023-02-15 14:05:23,572 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:05:23,739 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:05:23,740 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/MinusUserDefined.c [2023-02-15 14:05:23,744 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/373a3d654/21f6bb407b744d6d987ea3bcc6898235/FLAG0fa79ca89 [2023-02-15 14:05:24,127 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/373a3d654/21f6bb407b744d6d987ea3bcc6898235 [2023-02-15 14:05:24,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:05:24,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:05:24,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:05:24,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:05:24,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:05:24,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c449e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24, skipping insertion in model container [2023-02-15 14:05:24,138 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:05:24,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:05:24,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:05:24,236 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:05:24,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:05:24,252 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:05:24,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24 WrapperNode [2023-02-15 14:05:24,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:05:24,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:05:24,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:05:24,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:05:24,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,271 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-02-15 14:05:24,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:05:24,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:05:24,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:05:24,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:05:24,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,283 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:05:24,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:05:24,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:05:24,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:05:24,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (1/1) ... [2023-02-15 14:05:24,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:05:24,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:05:24,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 14:05:24,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 14:05:24,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:05:24,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:05:24,389 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:05:24,390 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:05:24,526 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:05:24,531 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:05:24,531 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-15 14:05:24,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:05:24 BoogieIcfgContainer [2023-02-15 14:05:24,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:05:24,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 14:05:24,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 14:05:24,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 14:05:24,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:05:24" (1/3) ... [2023-02-15 14:05:24,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1518a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:05:24, skipping insertion in model container [2023-02-15 14:05:24,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:24" (2/3) ... [2023-02-15 14:05:24,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1518a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:05:24, skipping insertion in model container [2023-02-15 14:05:24,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:05:24" (3/3) ... [2023-02-15 14:05:24,538 INFO L112 eAbstractionObserver]: Analyzing ICFG MinusUserDefined.c [2023-02-15 14:05:24,549 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 14:05:24,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-02-15 14:05:24,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 14:05:24,599 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;@a8e3ce0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 14:05:24,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-02-15 14:05:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 20 states have (on average 1.9) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:24,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-15 14:05:24,606 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:24,607 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-15 14:05:24,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:24,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:24,611 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-02-15 14:05:24,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:24,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723341760] [2023-02-15 14:05:24,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:24,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:24,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:24,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:24,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723341760] [2023-02-15 14:05:24,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723341760] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:05:24,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:05:24,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:05:24,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620485506] [2023-02-15 14:05:24,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:05:24,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:05:24,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:24,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:05:24,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:24,724 INFO L87 Difference]: Start difference. First operand has 33 states, 20 states have (on average 1.9) internal successors, (38), 32 states have internal predecessors, (38), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:24,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:24,769 INFO L93 Difference]: Finished difference Result 56 states and 69 transitions. [2023-02-15 14:05:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:05:24,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-02-15 14:05:24,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:24,776 INFO L225 Difference]: With dead ends: 56 [2023-02-15 14:05:24,776 INFO L226 Difference]: Without dead ends: 29 [2023-02-15 14:05:24,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:24,781 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:24,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 37 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:24,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-15 14:05:24,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2023-02-15 14:05:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:24,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2023-02-15 14:05:24,806 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 4 [2023-02-15 14:05:24,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:24,806 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2023-02-15 14:05:24,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:24,807 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2023-02-15 14:05:24,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 14:05:24,807 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:24,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 14:05:24,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 14:05:24,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:24,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:24,808 INFO L85 PathProgramCache]: Analyzing trace with hash 28698343, now seen corresponding path program 1 times [2023-02-15 14:05:24,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:24,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947152301] [2023-02-15 14:05:24,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:24,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:24,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:24,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:24,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947152301] [2023-02-15 14:05:24,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947152301] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:05:24,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:05:24,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:05:24,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656266892] [2023-02-15 14:05:24,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:05:24,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:05:24,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:24,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:05:24,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:24,855 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:24,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:24,893 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2023-02-15 14:05:24,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:05:24,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 14:05:24,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:24,894 INFO L225 Difference]: With dead ends: 37 [2023-02-15 14:05:24,894 INFO L226 Difference]: Without dead ends: 36 [2023-02-15 14:05:24,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:24,895 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:24,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 20 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:24,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-15 14:05:24,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2023-02-15 14:05:24,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 33 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:24,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2023-02-15 14:05:24,901 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 5 [2023-02-15 14:05:24,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:24,901 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2023-02-15 14:05:24,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2023-02-15 14:05:24,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 14:05:24,902 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:24,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 14:05:24,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 14:05:24,902 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:24,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:24,905 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2023-02-15 14:05:24,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:24,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443625191] [2023-02-15 14:05:24,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:24,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:24,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:24,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:24,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443625191] [2023-02-15 14:05:24,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443625191] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:05:24,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:05:24,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:05:24,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630384025] [2023-02-15 14:05:24,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:05:24,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:05:24,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:24,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:05:24,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:24,938 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:24,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:24,957 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2023-02-15 14:05:24,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:05:24,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 14:05:24,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:24,958 INFO L225 Difference]: With dead ends: 34 [2023-02-15 14:05:24,958 INFO L226 Difference]: Without dead ends: 32 [2023-02-15 14:05:24,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:24,959 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 21 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:24,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 19 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:24,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-15 14:05:24,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-15 14:05:24,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.625) internal successors, (39), 31 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:24,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-02-15 14:05:24,964 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 5 [2023-02-15 14:05:24,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:24,965 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-02-15 14:05:24,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:24,965 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-02-15 14:05:24,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 14:05:24,965 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:24,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 14:05:24,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 14:05:24,966 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:24,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:24,966 INFO L85 PathProgramCache]: Analyzing trace with hash 889648697, now seen corresponding path program 1 times [2023-02-15 14:05:24,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:24,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694617370] [2023-02-15 14:05:24,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:24,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:24,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:24,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:24,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694617370] [2023-02-15 14:05:24,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694617370] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:05:24,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:05:24,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:05:24,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824863373] [2023-02-15 14:05:24,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:05:24,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:05:24,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:24,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:05:24,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:05:25,000 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:25,027 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2023-02-15 14:05:25,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:05:25,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 14:05:25,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:25,028 INFO L225 Difference]: With dead ends: 32 [2023-02-15 14:05:25,028 INFO L226 Difference]: Without dead ends: 31 [2023-02-15 14:05:25,029 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 [2023-02-15 14:05:25,030 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:25,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 27 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:25,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-15 14:05:25,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-15 14:05:25,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-02-15 14:05:25,035 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 6 [2023-02-15 14:05:25,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:25,035 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-02-15 14:05:25,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,036 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-02-15 14:05:25,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 14:05:25,036 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:25,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 14:05:25,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 14:05:25,037 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:25,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:25,037 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2023-02-15 14:05:25,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:25,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674716925] [2023-02-15 14:05:25,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:25,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:25,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:25,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674716925] [2023-02-15 14:05:25,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674716925] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:05:25,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:05:25,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:05:25,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47994754] [2023-02-15 14:05:25,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:05:25,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:05:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:25,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:05:25,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:25,061 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:25,096 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2023-02-15 14:05:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:05:25,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 14:05:25,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:25,097 INFO L225 Difference]: With dead ends: 31 [2023-02-15 14:05:25,097 INFO L226 Difference]: Without dead ends: 29 [2023-02-15 14:05:25,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:25,098 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:25,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:25,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-15 14:05:25,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-02-15 14:05:25,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2023-02-15 14:05:25,102 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 6 [2023-02-15 14:05:25,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:25,102 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-02-15 14:05:25,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-02-15 14:05:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 14:05:25,103 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:25,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:05:25,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 14:05:25,103 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:25,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:25,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1809305897, now seen corresponding path program 1 times [2023-02-15 14:05:25,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:25,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377139513] [2023-02-15 14:05:25,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:25,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:25,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:25,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377139513] [2023-02-15 14:05:25,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377139513] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:05:25,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:05:25,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:05:25,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776384347] [2023-02-15 14:05:25,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:05:25,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:05:25,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:25,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:05:25,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:25,151 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:25,160 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2023-02-15 14:05:25,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:05:25,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 14:05:25,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:25,162 INFO L225 Difference]: With dead ends: 29 [2023-02-15 14:05:25,162 INFO L226 Difference]: Without dead ends: 28 [2023-02-15 14:05:25,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:25,163 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:25,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 21 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:25,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-15 14:05:25,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-02-15 14:05:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.375) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2023-02-15 14:05:25,168 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 7 [2023-02-15 14:05:25,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:25,169 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2023-02-15 14:05:25,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,169 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-02-15 14:05:25,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 14:05:25,169 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:25,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:05:25,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 14:05:25,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:25,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:25,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2023-02-15 14:05:25,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:25,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059217378] [2023-02-15 14:05:25,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:25,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:25,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:25,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059217378] [2023-02-15 14:05:25,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059217378] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:05:25,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:05:25,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:05:25,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009699918] [2023-02-15 14:05:25,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:05:25,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:05:25,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:25,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:05:25,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:25,193 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:25,208 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2023-02-15 14:05:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:05:25,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 14:05:25,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:25,209 INFO L225 Difference]: With dead ends: 28 [2023-02-15 14:05:25,209 INFO L226 Difference]: Without dead ends: 26 [2023-02-15 14:05:25,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:25,211 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:25,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:25,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-15 14:05:25,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-02-15 14:05:25,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.2916666666666667) 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) [2023-02-15 14:05:25,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-02-15 14:05:25,215 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 7 [2023-02-15 14:05:25,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:25,216 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-02-15 14:05:25,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,216 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-02-15 14:05:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:05:25,217 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:25,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:05:25,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 14:05:25,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:25,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:25,218 INFO L85 PathProgramCache]: Analyzing trace with hash 253908027, now seen corresponding path program 1 times [2023-02-15 14:05:25,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:25,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328596920] [2023-02-15 14:05:25,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:25,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:25,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328596920] [2023-02-15 14:05:25,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328596920] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:05:25,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:05:25,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:05:25,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21100298] [2023-02-15 14:05:25,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:05:25,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:05:25,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:25,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:05:25,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:25,241 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:25,250 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-02-15 14:05:25,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:05:25,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 14:05:25,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:25,251 INFO L225 Difference]: With dead ends: 38 [2023-02-15 14:05:25,251 INFO L226 Difference]: Without dead ends: 37 [2023-02-15 14:05:25,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:05:25,252 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:25,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:25,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-15 14:05:25,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2023-02-15 14:05:25,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2023-02-15 14:05:25,258 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 8 [2023-02-15 14:05:25,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:25,258 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2023-02-15 14:05:25,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,258 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2023-02-15 14:05:25,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 14:05:25,259 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:25,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:05:25,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 14:05:25,259 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:25,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:25,260 INFO L85 PathProgramCache]: Analyzing trace with hash -27489762, now seen corresponding path program 1 times [2023-02-15 14:05:25,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:25,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444599656] [2023-02-15 14:05:25,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:25,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:25,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:25,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444599656] [2023-02-15 14:05:25,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444599656] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:05:25,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:05:25,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:05:25,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342068938] [2023-02-15 14:05:25,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:05:25,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:05:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:25,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:05:25,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:05:25,291 INFO L87 Difference]: Start difference. First operand 36 states and 42 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) [2023-02-15 14:05:25,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:25,330 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2023-02-15 14:05:25,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:05:25,334 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 [2023-02-15 14:05:25,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:25,335 INFO L225 Difference]: With dead ends: 41 [2023-02-15 14:05:25,335 INFO L226 Difference]: Without dead ends: 40 [2023-02-15 14:05:25,335 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 [2023-02-15 14:05:25,336 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:25,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 32 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:25,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-15 14:05:25,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2023-02-15 14:05:25,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-02-15 14:05:25,344 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 10 [2023-02-15 14:05:25,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:25,345 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-02-15 14:05:25,345 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) [2023-02-15 14:05:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-02-15 14:05:25,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 14:05:25,346 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:25,346 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-15 14:05:25,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 14:05:25,346 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:25,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash -309781424, now seen corresponding path program 1 times [2023-02-15 14:05:25,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:25,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618895879] [2023-02-15 14:05:25,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:25,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:25,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618895879] [2023-02-15 14:05:25,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618895879] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:05:25,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243449115] [2023-02-15 14:05:25,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:25,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:05:25,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:05:25,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:05:25,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 14:05:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:25,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:05:25,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:05:25,442 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:05:25,465 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243449115] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:05:25,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:05:25,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 14:05:25,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722966922] [2023-02-15 14:05:25,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:05:25,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 14:05:25,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:25,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 14:05:25,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:05:25,467 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:25,480 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2023-02-15 14:05:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 14:05:25,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 14:05:25,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:25,481 INFO L225 Difference]: With dead ends: 54 [2023-02-15 14:05:25,481 INFO L226 Difference]: Without dead ends: 53 [2023-02-15 14:05:25,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:05:25,482 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 36 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:25,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 56 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:25,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-02-15 14:05:25,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-02-15 14:05:25,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2023-02-15 14:05:25,487 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 14 [2023-02-15 14:05:25,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:25,488 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2023-02-15 14:05:25,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:25,488 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2023-02-15 14:05:25,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-15 14:05:25,489 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:25,489 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2023-02-15 14:05:25,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 14:05:25,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-15 14:05:25,694 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:25,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:25,694 INFO L85 PathProgramCache]: Analyzing trace with hash -870982129, now seen corresponding path program 2 times [2023-02-15 14:05:25,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:25,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091344955] [2023-02-15 14:05:25,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:25,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:25,807 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:25,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091344955] [2023-02-15 14:05:25,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091344955] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:05:25,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485492315] [2023-02-15 14:05:25,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:05:25,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:05:25,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:05:25,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:05:25,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 14:05:25,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:05:25,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:05:25,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:05:25,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:05:25,893 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:05:25,961 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485492315] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:05:25,962 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:05:25,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 14:05:25,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027913955] [2023-02-15 14:05:25,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:05:25,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 14:05:25,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:25,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 14:05:25,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 14:05:25,964 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:26,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:26,008 INFO L93 Difference]: Finished difference Result 114 states and 130 transitions. [2023-02-15 14:05:26,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 14:05:26,009 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-02-15 14:05:26,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:26,009 INFO L225 Difference]: With dead ends: 114 [2023-02-15 14:05:26,010 INFO L226 Difference]: Without dead ends: 113 [2023-02-15 14:05:26,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 14:05:26,010 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 106 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:26,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 110 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:26,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-02-15 14:05:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-02-15 14:05:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.1071428571428572) internal successors, (124), 112 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:26,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 124 transitions. [2023-02-15 14:05:26,019 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 124 transitions. Word has length 32 [2023-02-15 14:05:26,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:26,020 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 124 transitions. [2023-02-15 14:05:26,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:26,020 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2023-02-15 14:05:26,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-02-15 14:05:26,021 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:26,021 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 1, 1, 1, 1] [2023-02-15 14:05:26,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 14:05:26,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-15 14:05:26,226 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:26,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:26,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1051352141, now seen corresponding path program 3 times [2023-02-15 14:05:26,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:26,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006429361] [2023-02-15 14:05:26,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:26,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:26,455 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:26,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:26,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006429361] [2023-02-15 14:05:26,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006429361] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:05:26,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848095306] [2023-02-15 14:05:26,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:05:26,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:05:26,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:05:26,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:05:26,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 14:05:26,497 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 14:05:26,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:05:26,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 14:05:26,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:05:26,581 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:26,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:05:26,785 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:26,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848095306] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:05:26,785 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:05:26,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 14:05:26,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8229406] [2023-02-15 14:05:26,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:05:26,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 14:05:26,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:26,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 14:05:26,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 14:05:26,787 INFO L87 Difference]: Start difference. First operand 113 states and 124 transitions. Second operand has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 24 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:26,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:26,856 INFO L93 Difference]: Finished difference Result 234 states and 268 transitions. [2023-02-15 14:05:26,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 14:05:26,856 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 24 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-02-15 14:05:26,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:26,857 INFO L225 Difference]: With dead ends: 234 [2023-02-15 14:05:26,857 INFO L226 Difference]: Without dead ends: 233 [2023-02-15 14:05:26,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 14:05:26,858 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 406 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:26,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 219 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:05:26,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-02-15 14:05:26,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2023-02-15 14:05:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.103448275862069) internal successors, (256), 232 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:26,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 256 transitions. [2023-02-15 14:05:26,879 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 256 transitions. Word has length 68 [2023-02-15 14:05:26,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:26,880 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 256 transitions. [2023-02-15 14:05:26,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 24 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:26,880 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 256 transitions. [2023-02-15 14:05:26,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-02-15 14:05:26,886 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:26,886 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 1, 1, 1, 1] [2023-02-15 14:05:26,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 14:05:27,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:05:27,094 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:27,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:27,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1663402953, now seen corresponding path program 4 times [2023-02-15 14:05:27,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:27,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407974913] [2023-02-15 14:05:27,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:27,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:27,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:27,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:27,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407974913] [2023-02-15 14:05:27,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407974913] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:05:27,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511325439] [2023-02-15 14:05:27,584 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 14:05:27,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:05:27,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:05:27,585 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:05:27,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 14:05:27,643 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 14:05:27,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:05:27,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 14:05:27,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:05:27,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:27,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:05:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1496 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:28,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511325439] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:05:28,462 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:05:28,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-15 14:05:28,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035786390] [2023-02-15 14:05:28,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:05:28,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 14:05:28,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:28,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 14:05:28,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 14:05:28,465 INFO L87 Difference]: Start difference. First operand 233 states and 256 transitions. Second operand has 48 states, 47 states have (on average 5.9361702127659575) internal successors, (279), 48 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:28,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:28,649 INFO L93 Difference]: Finished difference Result 474 states and 544 transitions. [2023-02-15 14:05:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 14:05:28,649 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.9361702127659575) internal successors, (279), 48 states have internal predecessors, (279), 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 140 [2023-02-15 14:05:28,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:28,651 INFO L225 Difference]: With dead ends: 474 [2023-02-15 14:05:28,651 INFO L226 Difference]: Without dead ends: 473 [2023-02-15 14:05:28,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 14:05:28,652 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 936 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:28,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 437 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:05:28,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-02-15 14:05:28,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2023-02-15 14:05:28,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 1.1016949152542372) internal successors, (520), 472 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:28,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 520 transitions. [2023-02-15 14:05:28,669 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 520 transitions. Word has length 140 [2023-02-15 14:05:28,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:28,670 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 520 transitions. [2023-02-15 14:05:28,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.9361702127659575) internal successors, (279), 48 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:28,670 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 520 transitions. [2023-02-15 14:05:28,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-02-15 14:05:28,673 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:28,673 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 1, 1, 1, 1] [2023-02-15 14:05:28,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-15 14:05:28,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:05:28,878 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:28,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:28,878 INFO L85 PathProgramCache]: Analyzing trace with hash 381058753, now seen corresponding path program 5 times [2023-02-15 14:05:28,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:28,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311498041] [2023-02-15 14:05:28,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:28,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:30,308 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:30,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:30,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311498041] [2023-02-15 14:05:30,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311498041] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:05:30,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661180426] [2023-02-15 14:05:30,309 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 14:05:30,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:05:30,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:05:30,310 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:05:30,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 14:05:30,397 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 14:05:30,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:05:30,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 14:05:30,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:05:30,657 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:30,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:05:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:32,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661180426] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:05:32,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:05:32,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-15 14:05:32,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497722423] [2023-02-15 14:05:32,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:05:32,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-15 14:05:32,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:32,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-15 14:05:32,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 14:05:32,927 INFO L87 Difference]: Start difference. First operand 473 states and 520 transitions. Second operand has 96 states, 95 states have (on average 5.968421052631579) internal successors, (567), 96 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:34,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:34,276 INFO L93 Difference]: Finished difference Result 954 states and 1096 transitions. [2023-02-15 14:05:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 14:05:34,276 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.968421052631579) internal successors, (567), 96 states have internal predecessors, (567), 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 284 [2023-02-15 14:05:34,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:34,279 INFO L225 Difference]: With dead ends: 954 [2023-02-15 14:05:34,279 INFO L226 Difference]: Without dead ends: 953 [2023-02-15 14:05:34,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 14:05:34,282 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2166 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:34,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 866 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 14:05:34,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2023-02-15 14:05:34,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 953. [2023-02-15 14:05:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 952 states have (on average 1.1008403361344539) internal successors, (1048), 952 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:34,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1048 transitions. [2023-02-15 14:05:34,305 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1048 transitions. Word has length 284 [2023-02-15 14:05:34,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:34,306 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1048 transitions. [2023-02-15 14:05:34,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.968421052631579) internal successors, (567), 96 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:05:34,306 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1048 transitions. [2023-02-15 14:05:34,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2023-02-15 14:05:34,311 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:34,311 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 94, 1, 1, 1, 1] [2023-02-15 14:05:34,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 14:05:34,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-15 14:05:34,518 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:05:34,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:34,518 INFO L85 PathProgramCache]: Analyzing trace with hash 886252721, now seen corresponding path program 6 times [2023-02-15 14:05:34,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:34,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317928734] [2023-02-15 14:05:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:34,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:39,602 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:39,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:39,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317928734] [2023-02-15 14:05:39,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317928734] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:05:39,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265617418] [2023-02-15 14:05:39,603 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 14:05:39,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:05:39,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:05:39,604 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:05:39,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 14:05:39,784 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 14:05:39,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:05:39,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-15 14:05:39,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:05:40,334 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:40,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:05:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 26696 backedges. 0 proven. 26696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:48,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265617418] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:05:48,521 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:05:48,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-15 14:05:48,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192200498] [2023-02-15 14:05:48,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:05:48,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-15 14:05:48,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:48,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-15 14:05:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 14:05:48,539 INFO L87 Difference]: Start difference. First operand 953 states and 1048 transitions. Second operand has 192 states, 191 states have (on average 5.984293193717278) internal successors, (1143), 192 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:06:03,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:06:03,109 INFO L93 Difference]: Finished difference Result 1914 states and 2200 transitions. [2023-02-15 14:06:03,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-15 14:06:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.984293193717278) internal successors, (1143), 192 states have internal predecessors, (1143), 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 572 [2023-02-15 14:06:03,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:06:03,114 INFO L225 Difference]: With dead ends: 1914 [2023-02-15 14:06:03,114 INFO L226 Difference]: Without dead ends: 1913 [2023-02-15 14:06:03,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1238 GetRequests, 1048 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 14:06:03,117 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 4066 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4066 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:06:03,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4066 Valid, 1737 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 14:06:03,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2023-02-15 14:06:03,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 1913. [2023-02-15 14:06:03,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1912 states have (on average 1.100418410041841) internal successors, (2104), 1912 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:06:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2104 transitions. [2023-02-15 14:06:03,165 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2104 transitions. Word has length 572 [2023-02-15 14:06:03,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:06:03,167 INFO L495 AbstractCegarLoop]: Abstraction has 1913 states and 2104 transitions. [2023-02-15 14:06:03,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.984293193717278) internal successors, (1143), 192 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:06:03,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2104 transitions. [2023-02-15 14:06:03,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2023-02-15 14:06:03,195 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:06:03,195 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 190, 190, 1, 1, 1, 1] [2023-02-15 14:06:03,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-15 14:06:03,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-15 14:06:03,399 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-02-15 14:06:03,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:06:03,400 INFO L85 PathProgramCache]: Analyzing trace with hash -780717935, now seen corresponding path program 7 times [2023-02-15 14:06:03,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:06:03,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495426958] [2023-02-15 14:06:03,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:06:03,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:06:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:25,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:25,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495426958] [2023-02-15 14:06:25,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495426958] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:06:25,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784493971] [2023-02-15 14:06:25,997 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 14:06:25,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:06:25,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:06:26,001 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:06:26,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 14:06:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:26,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 1917 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-15 14:06:26,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:06:27,421 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:27,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:06:58,831 INFO L134 CoverageAnalysis]: Checked inductivity of 108680 backedges. 0 proven. 108680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:58,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784493971] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:06:58,832 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:06:58,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-15 14:06:58,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583179270] [2023-02-15 14:06:58,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:06:58,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-15 14:06:58,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-15 14:06:58,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-15 14:06:58,857 INFO L87 Difference]: Start difference. First operand 1913 states and 2104 transitions. Second operand has 384 states, 383 states have (on average 5.992167101827676) internal successors, (2295), 384 states have internal predecessors, (2295), 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)