./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/twisted.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-numeric/twisted.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 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:02:44,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:02:44,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:02:44,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:02:44,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:02:44,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:02:44,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:02:44,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:02:44,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:02:44,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:02:44,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:02:44,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:02:44,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:02:44,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:02:44,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:02:44,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:02:44,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:02:44,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:02:44,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:02:44,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:02:44,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:02:44,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:02:44,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:02:44,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:02:44,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:02:44,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:02:44,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:02:44,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:02:44,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:02:44,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:02:44,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:02:44,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:02:44,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:02:44,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:02:44,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:02:44,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:02:44,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:02:44,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:02:44,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:02:44,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:02:44,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:02:44,375 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 14:02:44,394 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:02:44,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:02:44,398 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:02:44,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:02:44,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 14:02:44,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 14:02:44,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:02:44,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:02:44,400 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:02:44,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:02:44,401 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:02:44,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:02:44,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:02:44,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 14:02:44,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 14:02:44,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 14:02:44,402 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 14:02:44,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:02:44,402 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:02:44,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 14:02:44,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:02:44,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:02:44,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 14:02:44,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:02:44,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:02:44,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 14:02:44,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 14:02:44,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:02:44,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 14:02:44,404 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 14:02:44,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 14:02:44,405 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 14:02:44,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 14:02:44,405 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 14:02:44,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 [2023-02-15 14:02:44,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:02:44,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:02:44,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:02:44,678 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:02:44,678 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:02:44,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/twisted.c [2023-02-15 14:02:45,845 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:02:46,054 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:02:46,055 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/twisted.c [2023-02-15 14:02:46,060 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5a78e90/7568f087a1fc4e60acf25d2cad9a8b93/FLAG0aa1b0a96 [2023-02-15 14:02:46,076 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5a78e90/7568f087a1fc4e60acf25d2cad9a8b93 [2023-02-15 14:02:46,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:02:46,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:02:46,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:02:46,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:02:46,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:02:46,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fae814e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46, skipping insertion in model container [2023-02-15 14:02:46,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:02:46,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:02:46,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:02:46,264 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:02:46,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:02:46,287 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:02:46,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46 WrapperNode [2023-02-15 14:02:46,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:02:46,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:02:46,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:02:46,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:02:46,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,317 INFO L138 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2023-02-15 14:02:46,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:02:46,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:02:46,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:02:46,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:02:46,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,339 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:02:46,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:02:46,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:02:46,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:02:46,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (1/1) ... [2023-02-15 14:02:46,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 14:02:46,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:46,376 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 14:02:46,386 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 14:02:46,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:02:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:02:46,460 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:02:46,461 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:02:46,594 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:02:46,599 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:02:46,599 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 14:02:46,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:02:46 BoogieIcfgContainer [2023-02-15 14:02:46,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:02:46,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 14:02:46,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 14:02:46,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 14:02:46,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:02:46" (1/3) ... [2023-02-15 14:02:46,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71956335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:02:46, skipping insertion in model container [2023-02-15 14:02:46,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:02:46" (2/3) ... [2023-02-15 14:02:46,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71956335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:02:46, skipping insertion in model container [2023-02-15 14:02:46,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:02:46" (3/3) ... [2023-02-15 14:02:46,608 INFO L112 eAbstractionObserver]: Analyzing ICFG twisted.c [2023-02-15 14:02:46,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 14:02:46,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-15 14:02:46,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 14:02:46,678 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;@1d40eaf8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 14:02:46,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-15 14:02:46,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 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 14:02:46,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 14:02:46,687 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:46,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 14:02:46,688 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:46,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:46,697 INFO L85 PathProgramCache]: Analyzing trace with hash 28711221, now seen corresponding path program 1 times [2023-02-15 14:02:46,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:46,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756358968] [2023-02-15 14:02:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:46,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:46,791 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 14:02:46,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:46,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756358968] [2023-02-15 14:02:46,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756358968] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:46,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:02:46,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:02:46,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683134594] [2023-02-15 14:02:46,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:46,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 14:02:46,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:46,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 14:02:46,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 14:02:46,822 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:02:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:46,851 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2023-02-15 14:02:46,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 14:02:46,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:02:46,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:46,860 INFO L225 Difference]: With dead ends: 46 [2023-02-15 14:02:46,861 INFO L226 Difference]: Without dead ends: 20 [2023-02-15 14:02:46,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 14:02:46,867 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:46,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:46,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-15 14:02:46,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-15 14:02:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:46,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-02-15 14:02:46,914 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 5 [2023-02-15 14:02:46,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:46,914 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-02-15 14:02:46,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:02:46,915 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-02-15 14:02:46,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 14:02:46,915 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:46,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 14:02:46,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 14:02:46,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:46,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash 28694852, now seen corresponding path program 1 times [2023-02-15 14:02:46,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:46,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423555321] [2023-02-15 14:02:46,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:46,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:46,973 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 14:02:46,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:46,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423555321] [2023-02-15 14:02:46,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423555321] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:46,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:02:46,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:02:46,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140221196] [2023-02-15 14:02:46,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:46,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:02:46,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:46,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:02:46,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:02:46,978 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:47,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:47,052 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2023-02-15 14:02:47,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:02:47,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 14:02:47,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:47,054 INFO L225 Difference]: With dead ends: 20 [2023-02-15 14:02:47,054 INFO L226 Difference]: Without dead ends: 19 [2023-02-15 14:02:47,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:02:47,056 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:47,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 20 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:47,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-15 14:02:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-02-15 14:02:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:47,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2023-02-15 14:02:47,060 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 5 [2023-02-15 14:02:47,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:47,061 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2023-02-15 14:02:47,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:47,061 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-02-15 14:02:47,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 14:02:47,062 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:47,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 14:02:47,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 14:02:47,063 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:47,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:47,064 INFO L85 PathProgramCache]: Analyzing trace with hash 889540457, now seen corresponding path program 1 times [2023-02-15 14:02:47,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:47,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000927201] [2023-02-15 14:02:47,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:47,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:47,146 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 14:02:47,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:47,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000927201] [2023-02-15 14:02:47,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000927201] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:47,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:02:47,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:02:47,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107379177] [2023-02-15 14:02:47,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:47,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:02:47,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:47,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:02:47,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:02:47,150 INFO L87 Difference]: Start difference. First operand 19 states and 22 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 14:02:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:47,200 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2023-02-15 14:02:47,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:02:47,202 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 14:02:47,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:47,203 INFO L225 Difference]: With dead ends: 35 [2023-02-15 14:02:47,203 INFO L226 Difference]: Without dead ends: 34 [2023-02-15 14:02:47,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:02:47,204 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:47,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 35 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:47,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-15 14:02:47,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2023-02-15 14:02:47,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.565217391304348) internal successors, (36), 27 states have internal predecessors, (36), 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 14:02:47,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2023-02-15 14:02:47,212 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 6 [2023-02-15 14:02:47,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:47,212 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-02-15 14:02:47,212 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 14:02:47,213 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-02-15 14:02:47,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 14:02:47,213 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:47,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:47,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 14:02:47,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:47,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:47,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903811, now seen corresponding path program 1 times [2023-02-15 14:02:47,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:47,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957226832] [2023-02-15 14:02:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:47,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:47,248 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 14:02:47,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:47,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957226832] [2023-02-15 14:02:47,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957226832] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:47,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:02:47,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:02:47,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914724813] [2023-02-15 14:02:47,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:47,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:02:47,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:47,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:02:47,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:02:47,252 INFO L87 Difference]: Start difference. First operand 28 states and 36 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 14:02:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:47,286 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2023-02-15 14:02:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:02:47,287 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 14:02:47,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:47,290 INFO L225 Difference]: With dead ends: 41 [2023-02-15 14:02:47,290 INFO L226 Difference]: Without dead ends: 40 [2023-02-15 14:02:47,291 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 14:02:47,292 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:47,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:47,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-15 14:02:47,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2023-02-15 14:02:47,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:47,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2023-02-15 14:02:47,301 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 7 [2023-02-15 14:02:47,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:47,302 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2023-02-15 14:02:47,302 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 14:02:47,302 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2023-02-15 14:02:47,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 14:02:47,303 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:47,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:47,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 14:02:47,303 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:47,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:47,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903861, now seen corresponding path program 1 times [2023-02-15 14:02:47,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:47,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393807362] [2023-02-15 14:02:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:47,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:47,376 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 14:02:47,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:47,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393807362] [2023-02-15 14:02:47,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393807362] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:47,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:02:47,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:02:47,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090308597] [2023-02-15 14:02:47,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:47,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:02:47,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:47,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:02:47,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:02:47,381 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:47,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:47,419 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2023-02-15 14:02:47,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:02:47,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 14:02:47,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:47,420 INFO L225 Difference]: With dead ends: 33 [2023-02-15 14:02:47,420 INFO L226 Difference]: Without dead ends: 32 [2023-02-15 14:02:47,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:02:47,422 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:47,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:47,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-15 14:02:47,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-15 14:02:47,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 31 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 14:02:47,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2023-02-15 14:02:47,429 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 7 [2023-02-15 14:02:47,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:47,429 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2023-02-15 14:02:47,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:47,430 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2023-02-15 14:02:47,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:02:47,430 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:47,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:47,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 14:02:47,431 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:47,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:47,432 INFO L85 PathProgramCache]: Analyzing trace with hash 148443370, now seen corresponding path program 1 times [2023-02-15 14:02:47,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:47,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981945120] [2023-02-15 14:02:47,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:47,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:47,479 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 14:02:47,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:47,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981945120] [2023-02-15 14:02:47,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981945120] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:47,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:02:47,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:02:47,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599055603] [2023-02-15 14:02:47,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:47,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:02:47,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:47,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:02:47,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:02:47,482 INFO L87 Difference]: Start difference. First operand 32 states and 41 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 14:02:47,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:47,506 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2023-02-15 14:02:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:02:47,506 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 14:02:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:47,507 INFO L225 Difference]: With dead ends: 39 [2023-02-15 14:02:47,507 INFO L226 Difference]: Without dead ends: 36 [2023-02-15 14:02:47,508 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 14:02:47,509 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:47,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 23 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:47,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-15 14:02:47,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2023-02-15 14:02:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 30 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 14:02:47,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2023-02-15 14:02:47,515 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 8 [2023-02-15 14:02:47,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:47,515 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2023-02-15 14:02:47,515 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 14:02:47,516 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2023-02-15 14:02:47,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 14:02:47,516 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:47,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:47,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 14:02:47,517 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:47,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:47,517 INFO L85 PathProgramCache]: Analyzing trace with hash 148444908, now seen corresponding path program 1 times [2023-02-15 14:02:47,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:47,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429885952] [2023-02-15 14:02:47,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:47,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:47,564 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 14:02:47,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:47,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429885952] [2023-02-15 14:02:47,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429885952] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:47,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:02:47,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:02:47,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995017259] [2023-02-15 14:02:47,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:47,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 14:02:47,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:47,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 14:02:47,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 14:02:47,567 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:47,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:47,599 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2023-02-15 14:02:47,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 14:02:47,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 14:02:47,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:47,604 INFO L225 Difference]: With dead ends: 49 [2023-02-15 14:02:47,604 INFO L226 Difference]: Without dead ends: 48 [2023-02-15 14:02:47,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:02:47,605 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:47,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 40 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-15 14:02:47,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2023-02-15 14:02:47,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:47,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2023-02-15 14:02:47,620 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 8 [2023-02-15 14:02:47,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:47,621 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2023-02-15 14:02:47,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:47,621 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2023-02-15 14:02:47,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 14:02:47,622 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:47,622 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:47,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 14:02:47,622 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:47,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1985747964, now seen corresponding path program 1 times [2023-02-15 14:02:47,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:47,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370733306] [2023-02-15 14:02:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:47,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:47,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:47,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:47,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370733306] [2023-02-15 14:02:47,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370733306] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:47,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290429946] [2023-02-15 14:02:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:47,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:47,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:47,718 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 14:02:47,749 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 14:02:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:47,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:02:47,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:47,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:47,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:47,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:47,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290429946] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:47,890 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:47,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-15 14:02:47,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455972152] [2023-02-15 14:02:47,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:47,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 14:02:47,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:47,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 14:02:47,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-15 14:02:47,894 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:48,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:48,040 INFO L93 Difference]: Finished difference Result 119 states and 152 transitions. [2023-02-15 14:02:48,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 14:02:48,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-15 14:02:48,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:48,047 INFO L225 Difference]: With dead ends: 119 [2023-02-15 14:02:48,048 INFO L226 Difference]: Without dead ends: 118 [2023-02-15 14:02:48,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-15 14:02:48,051 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 74 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:48,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 76 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:02:48,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-02-15 14:02:48,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 78. [2023-02-15 14:02:48,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.4324324324324325) internal successors, (106), 77 states have internal predecessors, (106), 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 14:02:48,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 106 transitions. [2023-02-15 14:02:48,077 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 106 transitions. Word has length 10 [2023-02-15 14:02:48,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:48,077 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 106 transitions. [2023-02-15 14:02:48,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:48,078 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 106 transitions. [2023-02-15 14:02:48,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 14:02:48,078 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:48,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:48,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 14:02:48,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:48,284 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:48,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:48,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1985673441, now seen corresponding path program 1 times [2023-02-15 14:02:48,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:48,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317529039] [2023-02-15 14:02:48,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:48,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:48,351 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 14:02:48,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:48,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317529039] [2023-02-15 14:02:48,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317529039] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:48,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:02:48,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 14:02:48,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331503088] [2023-02-15 14:02:48,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:48,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 14:02:48,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:48,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 14:02:48,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:02:48,355 INFO L87 Difference]: Start difference. First operand 78 states and 106 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 14:02:48,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:48,427 INFO L93 Difference]: Finished difference Result 83 states and 111 transitions. [2023-02-15 14:02:48,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 14:02:48,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 14:02:48,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:48,432 INFO L225 Difference]: With dead ends: 83 [2023-02-15 14:02:48,432 INFO L226 Difference]: Without dead ends: 82 [2023-02-15 14:02:48,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-15 14:02:48,434 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:48,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 36 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:48,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-02-15 14:02:48,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2023-02-15 14:02:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 78 states have internal predecessors, (107), 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 14:02:48,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 107 transitions. [2023-02-15 14:02:48,455 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 107 transitions. Word has length 10 [2023-02-15 14:02:48,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:48,455 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 107 transitions. [2023-02-15 14:02:48,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 14:02:48,455 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 107 transitions. [2023-02-15 14:02:48,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 14:02:48,455 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:48,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:48,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 14:02:48,456 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:48,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:48,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1493993400, now seen corresponding path program 1 times [2023-02-15 14:02:48,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:48,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246216218] [2023-02-15 14:02:48,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:48,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:48,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:48,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246216218] [2023-02-15 14:02:48,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246216218] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:48,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930056204] [2023-02-15 14:02:48,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:48,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:48,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:48,517 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 14:02:48,520 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 14:02:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:48,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:02:48,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:48,616 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 14:02:48,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:02:48,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930056204] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:48,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:02:48,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-02-15 14:02:48,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773952269] [2023-02-15 14:02:48,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:48,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 14:02:48,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:48,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 14:02:48,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-02-15 14:02:48,619 INFO L87 Difference]: Start difference. First operand 79 states and 107 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 14:02:48,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:48,682 INFO L93 Difference]: Finished difference Result 95 states and 125 transitions. [2023-02-15 14:02:48,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 14:02:48,683 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 14:02:48,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:48,683 INFO L225 Difference]: With dead ends: 95 [2023-02-15 14:02:48,684 INFO L226 Difference]: Without dead ends: 94 [2023-02-15 14:02:48,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-02-15 14:02:48,684 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:48,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 39 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:48,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-02-15 14:02:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2023-02-15 14:02:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.4285714285714286) internal successors, (120), 87 states have internal predecessors, (120), 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 14:02:48,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2023-02-15 14:02:48,693 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 11 [2023-02-15 14:02:48,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:48,693 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2023-02-15 14:02:48,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 14:02:48,693 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2023-02-15 14:02:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 14:02:48,694 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:48,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:48,702 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 14:02:48,900 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,SelfDestructingSolverStorable9 [2023-02-15 14:02:48,900 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:48,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:48,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1426334450, now seen corresponding path program 1 times [2023-02-15 14:02:48,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:48,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765719050] [2023-02-15 14:02:48,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:48,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:48,952 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 14:02:48,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:48,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765719050] [2023-02-15 14:02:48,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765719050] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:48,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:02:48,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 14:02:48,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663304100] [2023-02-15 14:02:48,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:48,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 14:02:48,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:48,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 14:02:48,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 14:02:48,956 INFO L87 Difference]: Start difference. First operand 88 states and 120 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 14:02:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:49,001 INFO L93 Difference]: Finished difference Result 91 states and 122 transitions. [2023-02-15 14:02:49,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 14:02:49,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 14:02:49,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:49,003 INFO L225 Difference]: With dead ends: 91 [2023-02-15 14:02:49,003 INFO L226 Difference]: Without dead ends: 88 [2023-02-15 14:02:49,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-02-15 14:02:49,004 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:49,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 33 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:49,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-02-15 14:02:49,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-02-15 14:02:49,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 87 states have internal predecessors, (119), 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 14:02:49,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2023-02-15 14:02:49,011 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 11 [2023-02-15 14:02:49,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:49,015 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2023-02-15 14:02:49,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 14:02:49,016 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2023-02-15 14:02:49,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 14:02:49,016 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:49,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:49,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-15 14:02:49,017 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:49,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:49,018 INFO L85 PathProgramCache]: Analyzing trace with hash 930844933, now seen corresponding path program 1 times [2023-02-15 14:02:49,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:49,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801555211] [2023-02-15 14:02:49,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:49,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:49,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:49,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:49,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801555211] [2023-02-15 14:02:49,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801555211] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:49,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964970157] [2023-02-15 14:02:49,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:49,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:49,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:49,073 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 14:02:49,077 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 14:02:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:49,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:02:49,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:49,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:49,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:49,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:49,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964970157] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:49,215 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:49,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-02-15 14:02:49,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678275817] [2023-02-15 14:02:49,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:49,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 14:02:49,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:49,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 14:02:49,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-02-15 14:02:49,218 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:49,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:49,374 INFO L93 Difference]: Finished difference Result 131 states and 171 transitions. [2023-02-15 14:02:49,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 14:02:49,374 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 14:02:49,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:49,375 INFO L225 Difference]: With dead ends: 131 [2023-02-15 14:02:49,375 INFO L226 Difference]: Without dead ends: 122 [2023-02-15 14:02:49,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2023-02-15 14:02:49,377 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 55 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:49,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 52 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:02:49,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-02-15 14:02:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 104. [2023-02-15 14:02:49,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.42) internal successors, (142), 103 states have internal predecessors, (142), 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 14:02:49,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 142 transitions. [2023-02-15 14:02:49,385 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 142 transitions. Word has length 12 [2023-02-15 14:02:49,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:49,386 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 142 transitions. [2023-02-15 14:02:49,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:49,386 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 142 transitions. [2023-02-15 14:02:49,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 14:02:49,387 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:49,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:49,393 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 14:02:49,592 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 14:02:49,592 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:49,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:49,593 INFO L85 PathProgramCache]: Analyzing trace with hash 930846471, now seen corresponding path program 1 times [2023-02-15 14:02:49,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:49,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816134066] [2023-02-15 14:02:49,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:49,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:49,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:49,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:49,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816134066] [2023-02-15 14:02:49,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816134066] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:49,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094996747] [2023-02-15 14:02:49,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:49,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:49,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:49,630 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 14:02:49,632 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 14:02:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:49,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 14:02:49,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:49,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:49,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094996747] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:49,704 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:49,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-15 14:02:49,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450796995] [2023-02-15 14:02:49,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:49,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 14:02:49,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:49,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 14:02:49,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-15 14:02:49,709 INFO L87 Difference]: Start difference. First operand 104 states and 142 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:49,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:49,785 INFO L93 Difference]: Finished difference Result 271 states and 375 transitions. [2023-02-15 14:02:49,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 14:02:49,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-15 14:02:49,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:49,787 INFO L225 Difference]: With dead ends: 271 [2023-02-15 14:02:49,787 INFO L226 Difference]: Without dead ends: 270 [2023-02-15 14:02:49,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-15 14:02:49,789 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 79 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:49,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 87 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:49,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-02-15 14:02:49,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 251. [2023-02-15 14:02:49,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 247 states have (on average 1.4008097165991902) internal successors, (346), 250 states have internal predecessors, (346), 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 14:02:49,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 346 transitions. [2023-02-15 14:02:49,803 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 346 transitions. Word has length 12 [2023-02-15 14:02:49,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:49,803 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 346 transitions. [2023-02-15 14:02:49,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:49,804 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 346 transitions. [2023-02-15 14:02:49,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 14:02:49,807 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:49,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:49,813 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 14:02:50,013 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 14:02:50,014 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:50,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:50,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1772254812, now seen corresponding path program 1 times [2023-02-15 14:02:50,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:50,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095927402] [2023-02-15 14:02:50,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:50,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:50,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:50,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:50,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095927402] [2023-02-15 14:02:50,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095927402] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:50,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389106254] [2023-02-15 14:02:50,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:50,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:50,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:50,073 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 14:02:50,092 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 14:02:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:50,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 14:02:50,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:50,186 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 14:02:50,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:02:50,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389106254] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:50,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:02:50,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-02-15 14:02:50,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857074160] [2023-02-15 14:02:50,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:50,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 14:02:50,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:50,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 14:02:50,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-15 14:02:50,188 INFO L87 Difference]: Start difference. First operand 251 states and 346 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:50,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:50,324 INFO L93 Difference]: Finished difference Result 410 states and 566 transitions. [2023-02-15 14:02:50,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 14:02:50,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 14:02:50,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:50,326 INFO L225 Difference]: With dead ends: 410 [2023-02-15 14:02:50,326 INFO L226 Difference]: Without dead ends: 409 [2023-02-15 14:02:50,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-02-15 14:02:50,328 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 42 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:50,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 40 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:02:50,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-02-15 14:02:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 401. [2023-02-15 14:02:50,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 397 states have (on average 1.4130982367758187) internal successors, (561), 400 states have internal predecessors, (561), 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 14:02:50,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 561 transitions. [2023-02-15 14:02:50,349 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 561 transitions. Word has length 14 [2023-02-15 14:02:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:50,349 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 561 transitions. [2023-02-15 14:02:50,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:50,349 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 561 transitions. [2023-02-15 14:02:50,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 14:02:50,350 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:50,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:50,359 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 14:02:50,556 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 14:02:50,556 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:50,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:50,557 INFO L85 PathProgramCache]: Analyzing trace with hash 517534035, now seen corresponding path program 1 times [2023-02-15 14:02:50,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:50,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705609257] [2023-02-15 14:02:50,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:50,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:50,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:50,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:50,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705609257] [2023-02-15 14:02:50,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705609257] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:50,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410527661] [2023-02-15 14:02:50,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:50,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:50,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:50,617 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 14:02:50,639 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 14:02:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:50,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 14:02:50,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:50,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:50,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410527661] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:50,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:50,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-02-15 14:02:50,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212874364] [2023-02-15 14:02:50,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:50,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 14:02:50,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:50,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 14:02:50,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-02-15 14:02:50,770 INFO L87 Difference]: Start difference. First operand 401 states and 561 transitions. Second operand has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:50,877 INFO L93 Difference]: Finished difference Result 425 states and 588 transitions. [2023-02-15 14:02:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 14:02:50,878 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-15 14:02:50,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:50,880 INFO L225 Difference]: With dead ends: 425 [2023-02-15 14:02:50,880 INFO L226 Difference]: Without dead ends: 418 [2023-02-15 14:02:50,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2023-02-15 14:02:50,881 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 46 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:50,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 57 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:02:50,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-02-15 14:02:50,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 410. [2023-02-15 14:02:50,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 406 states have (on average 1.4039408866995073) internal successors, (570), 409 states have internal predecessors, (570), 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 14:02:50,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 570 transitions. [2023-02-15 14:02:50,902 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 570 transitions. Word has length 15 [2023-02-15 14:02:50,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:50,902 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 570 transitions. [2023-02-15 14:02:50,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:50,902 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 570 transitions. [2023-02-15 14:02:50,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 14:02:50,903 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:50,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:50,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 14:02:51,108 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 14:02:51,109 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:51,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:51,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1061225824, now seen corresponding path program 1 times [2023-02-15 14:02:51,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:51,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119116400] [2023-02-15 14:02:51,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:51,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:51,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:51,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:51,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119116400] [2023-02-15 14:02:51,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119116400] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:51,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214994183] [2023-02-15 14:02:51,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:51,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:51,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:51,159 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 14:02:51,189 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 14:02:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:51,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 14:02:51,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:51,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:51,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:51,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214994183] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:51,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:51,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-02-15 14:02:51,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795982412] [2023-02-15 14:02:51,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:51,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 14:02:51,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:51,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 14:02:51,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-02-15 14:02:51,331 INFO L87 Difference]: Start difference. First operand 410 states and 570 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 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 14:02:51,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:51,563 INFO L93 Difference]: Finished difference Result 499 states and 683 transitions. [2023-02-15 14:02:51,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-02-15 14:02:51,564 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 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 16 [2023-02-15 14:02:51,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:51,566 INFO L225 Difference]: With dead ends: 499 [2023-02-15 14:02:51,566 INFO L226 Difference]: Without dead ends: 488 [2023-02-15 14:02:51,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2023-02-15 14:02:51,568 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 79 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:51,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 56 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:02:51,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-02-15 14:02:51,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 439. [2023-02-15 14:02:51,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 435 states have (on average 1.3977011494252873) internal successors, (608), 438 states have internal predecessors, (608), 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 14:02:51,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 608 transitions. [2023-02-15 14:02:51,605 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 608 transitions. Word has length 16 [2023-02-15 14:02:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:51,605 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 608 transitions. [2023-02-15 14:02:51,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 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 14:02:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 608 transitions. [2023-02-15 14:02:51,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 14:02:51,606 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:51,606 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:51,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 14:02:51,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:51,812 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:51,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:51,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1239822903, now seen corresponding path program 1 times [2023-02-15 14:02:51,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:51,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90353470] [2023-02-15 14:02:51,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:51,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:51,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:51,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90353470] [2023-02-15 14:02:51,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90353470] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:02:51,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:02:51,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 14:02:51,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175421022] [2023-02-15 14:02:51,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:02:51,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:02:51,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:51,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:02:51,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:02:51,834 INFO L87 Difference]: Start difference. First operand 439 states and 608 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:51,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:51,872 INFO L93 Difference]: Finished difference Result 739 states and 1022 transitions. [2023-02-15 14:02:51,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:02:51,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-15 14:02:51,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:51,874 INFO L225 Difference]: With dead ends: 739 [2023-02-15 14:02:51,874 INFO L226 Difference]: Without dead ends: 401 [2023-02-15 14:02:51,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:02:51,876 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:51,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 30 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:51,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-02-15 14:02:51,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 302. [2023-02-15 14:02:51,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 299 states have (on average 1.3444816053511706) internal successors, (402), 301 states have internal predecessors, (402), 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 14:02:51,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 402 transitions. [2023-02-15 14:02:51,897 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 402 transitions. Word has length 17 [2023-02-15 14:02:51,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:51,897 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 402 transitions. [2023-02-15 14:02:51,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 402 transitions. [2023-02-15 14:02:51,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-15 14:02:51,898 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:51,899 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:51,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-02-15 14:02:51,899 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:51,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:51,899 INFO L85 PathProgramCache]: Analyzing trace with hash 642651187, now seen corresponding path program 1 times [2023-02-15 14:02:51,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:51,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644672060] [2023-02-15 14:02:51,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:51,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:51,995 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:51,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:51,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644672060] [2023-02-15 14:02:51,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644672060] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:51,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966656274] [2023-02-15 14:02:51,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:51,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:51,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:51,998 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:02:52,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 14:02:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:52,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 14:02:52,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:52,163 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:52,287 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:52,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966656274] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:52,288 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:52,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2023-02-15 14:02:52,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686568966] [2023-02-15 14:02:52,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:52,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-02-15 14:02:52,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:52,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-02-15 14:02:52,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2023-02-15 14:02:52,290 INFO L87 Difference]: Start difference. First operand 302 states and 402 transitions. Second operand has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 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 14:02:52,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:52,730 INFO L93 Difference]: Finished difference Result 521 states and 679 transitions. [2023-02-15 14:02:52,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-02-15 14:02:52,731 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 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 23 [2023-02-15 14:02:52,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:52,733 INFO L225 Difference]: With dead ends: 521 [2023-02-15 14:02:52,733 INFO L226 Difference]: Without dead ends: 504 [2023-02-15 14:02:52,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=626, Invalid=2130, Unknown=0, NotChecked=0, Total=2756 [2023-02-15 14:02:52,735 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 243 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:52,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 54 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:02:52,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-02-15 14:02:52,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 326. [2023-02-15 14:02:52,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 323 states have (on average 1.3715170278637772) internal successors, (443), 325 states have internal predecessors, (443), 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 14:02:52,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 443 transitions. [2023-02-15 14:02:52,780 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 443 transitions. Word has length 23 [2023-02-15 14:02:52,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:52,782 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 443 transitions. [2023-02-15 14:02:52,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.392857142857143) internal successors, (67), 29 states have internal predecessors, (67), 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 14:02:52,783 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 443 transitions. [2023-02-15 14:02:52,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 14:02:52,783 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:52,784 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:52,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-15 14:02:52,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-15 14:02:52,989 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:52,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1872170922, now seen corresponding path program 2 times [2023-02-15 14:02:52,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:52,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149003291] [2023-02-15 14:02:52,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:52,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:53,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:53,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149003291] [2023-02-15 14:02:53,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149003291] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:53,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357903092] [2023-02-15 14:02:53,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:02:53,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:53,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:53,117 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:02:53,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 14:02:53,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:02:53,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:02:53,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 14:02:53,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:53,269 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:53,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:53,377 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:53,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357903092] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:53,378 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:53,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2023-02-15 14:02:53,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866623320] [2023-02-15 14:02:53,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:53,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-02-15 14:02:53,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:53,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-02-15 14:02:53,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2023-02-15 14:02:53,380 INFO L87 Difference]: Start difference. First operand 326 states and 443 transitions. Second operand has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 states have internal predecessors, (70), 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 14:02:53,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:53,764 INFO L93 Difference]: Finished difference Result 443 states and 578 transitions. [2023-02-15 14:02:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-15 14:02:53,765 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 states have internal predecessors, (70), 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 24 [2023-02-15 14:02:53,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:53,767 INFO L225 Difference]: With dead ends: 443 [2023-02-15 14:02:53,767 INFO L226 Difference]: Without dead ends: 428 [2023-02-15 14:02:53,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=651, Invalid=1605, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 14:02:53,768 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 198 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:53,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 75 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:02:53,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2023-02-15 14:02:53,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 409. [2023-02-15 14:02:53,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 406 states have (on average 1.3374384236453203) internal successors, (543), 408 states have internal predecessors, (543), 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 14:02:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 543 transitions. [2023-02-15 14:02:53,803 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 543 transitions. Word has length 24 [2023-02-15 14:02:53,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:53,803 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 543 transitions. [2023-02-15 14:02:53,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 states have internal predecessors, (70), 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 14:02:53,803 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 543 transitions. [2023-02-15 14:02:53,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 14:02:53,804 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:53,804 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:53,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 14:02:54,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:54,010 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:54,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:54,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1872169384, now seen corresponding path program 2 times [2023-02-15 14:02:54,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:54,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508662435] [2023-02-15 14:02:54,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:54,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:54,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:54,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508662435] [2023-02-15 14:02:54,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508662435] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:54,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137596617] [2023-02-15 14:02:54,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:02:54,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:54,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:54,106 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:02:54,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 14:02:54,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 14:02:54,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:02:54,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:02:54,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-15 14:02:54,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-15 14:02:54,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137596617] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:54,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:54,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 13 [2023-02-15 14:02:54,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153143697] [2023-02-15 14:02:54,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:54,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 14:02:54,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:54,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 14:02:54,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-02-15 14:02:54,213 INFO L87 Difference]: Start difference. First operand 409 states and 543 transitions. Second operand has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 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 14:02:54,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:54,369 INFO L93 Difference]: Finished difference Result 481 states and 633 transitions. [2023-02-15 14:02:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-15 14:02:54,369 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 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) Word has length 24 [2023-02-15 14:02:54,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:54,372 INFO L225 Difference]: With dead ends: 481 [2023-02-15 14:02:54,372 INFO L226 Difference]: Without dead ends: 480 [2023-02-15 14:02:54,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2023-02-15 14:02:54,373 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 151 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:54,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 95 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:02:54,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-02-15 14:02:54,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 256. [2023-02-15 14:02:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 254 states have (on average 1.2992125984251968) internal successors, (330), 255 states have internal predecessors, (330), 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 14:02:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 330 transitions. [2023-02-15 14:02:54,405 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 330 transitions. Word has length 24 [2023-02-15 14:02:54,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:54,406 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 330 transitions. [2023-02-15 14:02:54,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 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 14:02:54,406 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 330 transitions. [2023-02-15 14:02:54,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-15 14:02:54,408 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:54,409 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:54,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 14:02:54,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:54,615 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:54,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:54,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1666643066, now seen corresponding path program 1 times [2023-02-15 14:02:54,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:54,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123828868] [2023-02-15 14:02:54,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:54,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:54,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:54,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123828868] [2023-02-15 14:02:54,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123828868] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:54,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482194987] [2023-02-15 14:02:54,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:54,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:54,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:54,730 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:02:54,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 14:02:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:54,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 14:02:54,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:54,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:55,101 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:55,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482194987] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:55,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:55,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-02-15 14:02:55,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131457881] [2023-02-15 14:02:55,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:55,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-02-15 14:02:55,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:55,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-02-15 14:02:55,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=922, Unknown=0, NotChecked=0, Total=1190 [2023-02-15 14:02:55,104 INFO L87 Difference]: Start difference. First operand 256 states and 330 transitions. Second operand has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 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 14:02:55,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:55,665 INFO L93 Difference]: Finished difference Result 570 states and 713 transitions. [2023-02-15 14:02:55,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-02-15 14:02:55,666 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 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 27 [2023-02-15 14:02:55,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:55,668 INFO L225 Difference]: With dead ends: 570 [2023-02-15 14:02:55,668 INFO L226 Difference]: Without dead ends: 553 [2023-02-15 14:02:55,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=899, Invalid=2761, Unknown=0, NotChecked=0, Total=3660 [2023-02-15 14:02:55,670 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 260 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:55,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 75 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 14:02:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-02-15 14:02:55,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 318. [2023-02-15 14:02:55,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 316 states have (on average 1.3132911392405062) internal successors, (415), 317 states have internal predecessors, (415), 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 14:02:55,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 415 transitions. [2023-02-15 14:02:55,717 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 415 transitions. Word has length 27 [2023-02-15 14:02:55,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:55,718 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 415 transitions. [2023-02-15 14:02:55,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.323529411764706) internal successors, (79), 35 states have internal predecessors, (79), 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 14:02:55,718 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 415 transitions. [2023-02-15 14:02:55,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 14:02:55,719 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:55,719 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:55,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 14:02:55,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-02-15 14:02:55,925 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:55,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:55,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1481942866, now seen corresponding path program 1 times [2023-02-15 14:02:55,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:55,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47833295] [2023-02-15 14:02:55,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:55,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:56,020 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:56,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:56,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47833295] [2023-02-15 14:02:56,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47833295] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:56,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412563629] [2023-02-15 14:02:56,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:56,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:56,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:56,025 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:02:56,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 14:02:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:56,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 14:02:56,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:56,105 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:56,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:56,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412563629] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:56,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:56,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2023-02-15 14:02:56,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007635988] [2023-02-15 14:02:56,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:56,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 14:02:56,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:56,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 14:02:56,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-02-15 14:02:56,225 INFO L87 Difference]: Start difference. First operand 318 states and 415 transitions. Second operand has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:56,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:56,505 INFO L93 Difference]: Finished difference Result 650 states and 850 transitions. [2023-02-15 14:02:56,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-15 14:02:56,506 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-02-15 14:02:56,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:56,508 INFO L225 Difference]: With dead ends: 650 [2023-02-15 14:02:56,508 INFO L226 Difference]: Without dead ends: 649 [2023-02-15 14:02:56,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2023-02-15 14:02:56,510 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 223 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:56,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 84 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:02:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-02-15 14:02:56,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 358. [2023-02-15 14:02:56,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 356 states have (on average 1.3286516853932584) internal successors, (473), 357 states have internal predecessors, (473), 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 14:02:56,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 473 transitions. [2023-02-15 14:02:56,555 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 473 transitions. Word has length 28 [2023-02-15 14:02:56,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:56,556 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 473 transitions. [2023-02-15 14:02:56,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:02:56,556 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 473 transitions. [2023-02-15 14:02:56,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-15 14:02:56,558 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:56,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:56,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 14:02:56,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-02-15 14:02:56,764 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:56,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:56,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1953358763, now seen corresponding path program 1 times [2023-02-15 14:02:56,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:56,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535911943] [2023-02-15 14:02:56,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:56,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:56,912 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:56,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:56,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535911943] [2023-02-15 14:02:56,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535911943] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:56,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968067967] [2023-02-15 14:02:56,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:56,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:56,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:56,914 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:02:56,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 14:02:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:56,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 14:02:56,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:57,157 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:57,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:57,372 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:57,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968067967] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:57,372 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:57,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 40 [2023-02-15 14:02:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961106596] [2023-02-15 14:02:57,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:57,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-02-15 14:02:57,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-02-15 14:02:57,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=1306, Unknown=0, NotChecked=0, Total=1640 [2023-02-15 14:02:57,374 INFO L87 Difference]: Start difference. First operand 358 states and 473 transitions. Second operand has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 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 14:02:58,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:02:58,491 INFO L93 Difference]: Finished difference Result 972 states and 1228 transitions. [2023-02-15 14:02:58,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-02-15 14:02:58,491 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 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 33 [2023-02-15 14:02:58,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:02:58,495 INFO L225 Difference]: With dead ends: 972 [2023-02-15 14:02:58,496 INFO L226 Difference]: Without dead ends: 951 [2023-02-15 14:02:58,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2714 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1750, Invalid=6440, Unknown=0, NotChecked=0, Total=8190 [2023-02-15 14:02:58,498 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 331 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 14:02:58,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 92 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 14:02:58,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-02-15 14:02:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 503. [2023-02-15 14:02:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 501 states have (on average 1.3313373253493015) internal successors, (667), 502 states have internal predecessors, (667), 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 14:02:58,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 667 transitions. [2023-02-15 14:02:58,574 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 667 transitions. Word has length 33 [2023-02-15 14:02:58,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:02:58,574 INFO L495 AbstractCegarLoop]: Abstraction has 503 states and 667 transitions. [2023-02-15 14:02:58,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.425) internal successors, (97), 41 states have internal predecessors, (97), 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 14:02:58,574 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 667 transitions. [2023-02-15 14:02:58,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-15 14:02:58,575 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:02:58,576 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:02:58,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-15 14:02:58,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-02-15 14:02:58,781 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:02:58,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:02:58,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1391952262, now seen corresponding path program 2 times [2023-02-15 14:02:58,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:02:58,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849479902] [2023-02-15 14:02:58,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:02:58,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:02:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:02:58,975 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:58,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:02:58,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849479902] [2023-02-15 14:02:58,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849479902] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:02:58,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830054347] [2023-02-15 14:02:58,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:02:58,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:02:58,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:02:58,977 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:02:59,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 14:02:59,022 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:02:59,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:02:59,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 14:02:59,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:02:59,282 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:59,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:02:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:02:59,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830054347] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:02:59,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:02:59,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2023-02-15 14:02:59,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249377613] [2023-02-15 14:02:59,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:02:59,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-02-15 14:02:59,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:02:59,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-02-15 14:02:59,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=432, Invalid=1730, Unknown=0, NotChecked=0, Total=2162 [2023-02-15 14:02:59,560 INFO L87 Difference]: Start difference. First operand 503 states and 667 transitions. Second operand has 47 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 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 14:03:00,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:00,811 INFO L93 Difference]: Finished difference Result 1479 states and 1887 transitions. [2023-02-15 14:03:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-02-15 14:03:00,811 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 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 39 [2023-02-15 14:03:00,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:00,816 INFO L225 Difference]: With dead ends: 1479 [2023-02-15 14:03:00,816 INFO L226 Difference]: Without dead ends: 1446 [2023-02-15 14:03:00,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3092 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1979, Invalid=7141, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 14:03:00,820 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 373 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:00,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 97 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 14:03:00,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2023-02-15 14:03:00,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 687. [2023-02-15 14:03:00,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 685 states have (on average 1.3372262773722627) internal successors, (916), 686 states have internal predecessors, (916), 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 14:03:00,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 916 transitions. [2023-02-15 14:03:00,932 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 916 transitions. Word has length 39 [2023-02-15 14:03:00,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:00,932 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 916 transitions. [2023-02-15 14:03:00,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.5) internal successors, (115), 47 states have internal predecessors, (115), 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 14:03:00,933 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 916 transitions. [2023-02-15 14:03:00,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-15 14:03:00,934 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:00,934 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:00,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:01,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:01,135 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:01,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:01,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1159060442, now seen corresponding path program 3 times [2023-02-15 14:03:01,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:01,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13700994] [2023-02-15 14:03:01,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:01,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:01,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:01,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13700994] [2023-02-15 14:03:01,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13700994] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:01,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725546783] [2023-02-15 14:03:01,418 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:03:01,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:01,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:01,419 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:01,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 14:03:01,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-02-15 14:03:01,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:01,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 14:03:01,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:01,481 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-02-15 14:03:01,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 14:03:01,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725546783] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:03:01,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 14:03:01,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [20] total 22 [2023-02-15 14:03:01,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702245741] [2023-02-15 14:03:01,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:03:01,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 14:03:01,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:01,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:03:01,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2023-02-15 14:03:01,483 INFO L87 Difference]: Start difference. First operand 687 states and 916 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:03:01,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:01,632 INFO L93 Difference]: Finished difference Result 1019 states and 1346 transitions. [2023-02-15 14:03:01,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:03:01,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-02-15 14:03:01,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:01,634 INFO L225 Difference]: With dead ends: 1019 [2023-02-15 14:03:01,634 INFO L226 Difference]: Without dead ends: 489 [2023-02-15 14:03:01,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2023-02-15 14:03:01,636 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:01,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 26 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 14:03:01,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-02-15 14:03:01,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 467. [2023-02-15 14:03:01,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 465 states have (on average 1.253763440860215) internal successors, (583), 466 states have internal predecessors, (583), 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 14:03:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 583 transitions. [2023-02-15 14:03:01,768 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 583 transitions. Word has length 45 [2023-02-15 14:03:01,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:01,768 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 583 transitions. [2023-02-15 14:03:01,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:03:01,772 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 583 transitions. [2023-02-15 14:03:01,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-15 14:03:01,773 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:01,773 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:01,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:01,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:01,979 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:01,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:01,979 INFO L85 PathProgramCache]: Analyzing trace with hash 526963803, now seen corresponding path program 1 times [2023-02-15 14:03:01,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:01,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145793944] [2023-02-15 14:03:01,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:01,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:02,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:02,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145793944] [2023-02-15 14:03:02,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145793944] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:02,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215048715] [2023-02-15 14:03:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:02,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:02,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:02,277 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:02,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 14:03:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:02,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-15 14:03:02,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:02,667 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:02,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:03,031 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:03,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215048715] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:03,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:03,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2023-02-15 14:03:03,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012606892] [2023-02-15 14:03:03,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:03,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-02-15 14:03:03,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:03,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-02-15 14:03:03,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=2746, Unknown=0, NotChecked=0, Total=3422 [2023-02-15 14:03:03,035 INFO L87 Difference]: Start difference. First operand 467 states and 583 transitions. Second operand has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 states have internal predecessors, (136), 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 14:03:04,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:04,533 INFO L93 Difference]: Finished difference Result 1349 states and 1580 transitions. [2023-02-15 14:03:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2023-02-15 14:03:04,534 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 states have internal predecessors, (136), 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 46 [2023-02-15 14:03:04,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:04,538 INFO L225 Difference]: With dead ends: 1349 [2023-02-15 14:03:04,538 INFO L226 Difference]: Without dead ends: 1326 [2023-02-15 14:03:04,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4393 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2935, Invalid=9947, Unknown=0, NotChecked=0, Total=12882 [2023-02-15 14:03:04,541 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 534 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:04,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 113 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 14:03:04,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2023-02-15 14:03:04,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 690. [2023-02-15 14:03:04,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 688 states have (on average 1.251453488372093) internal successors, (861), 689 states have internal predecessors, (861), 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 14:03:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 861 transitions. [2023-02-15 14:03:04,716 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 861 transitions. Word has length 46 [2023-02-15 14:03:04,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:04,716 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 861 transitions. [2023-02-15 14:03:04,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 states have internal predecessors, (136), 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 14:03:04,717 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 861 transitions. [2023-02-15 14:03:04,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-15 14:03:04,718 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:04,719 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:04,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:04,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-02-15 14:03:04,923 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:04,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:04,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1232536089, now seen corresponding path program 2 times [2023-02-15 14:03:04,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:04,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078421871] [2023-02-15 14:03:04,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:04,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:05,177 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:05,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:05,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078421871] [2023-02-15 14:03:05,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078421871] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:05,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491321243] [2023-02-15 14:03:05,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:03:05,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:05,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:05,181 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:05,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 14:03:05,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:03:05,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:05,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-15 14:03:05,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:05,570 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:05,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:05,947 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:05,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491321243] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:05,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:05,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2023-02-15 14:03:05,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176428148] [2023-02-15 14:03:05,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:05,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-02-15 14:03:05,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:05,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-02-15 14:03:05,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=2746, Unknown=0, NotChecked=0, Total=3422 [2023-02-15 14:03:05,950 INFO L87 Difference]: Start difference. First operand 690 states and 861 transitions. Second operand has 59 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 59 states have internal predecessors, (142), 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 14:03:07,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:07,926 INFO L93 Difference]: Finished difference Result 1987 states and 2414 transitions. [2023-02-15 14:03:07,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-02-15 14:03:07,926 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 59 states have internal predecessors, (142), 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 48 [2023-02-15 14:03:07,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:07,932 INFO L225 Difference]: With dead ends: 1987 [2023-02-15 14:03:07,932 INFO L226 Difference]: Without dead ends: 1958 [2023-02-15 14:03:07,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6253 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=3749, Invalid=13807, Unknown=0, NotChecked=0, Total=17556 [2023-02-15 14:03:07,937 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 608 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:07,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 103 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 14:03:07,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2023-02-15 14:03:08,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 865. [2023-02-15 14:03:08,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.2641946697566628) internal successors, (1091), 864 states have internal predecessors, (1091), 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 14:03:08,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1091 transitions. [2023-02-15 14:03:08,138 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1091 transitions. Word has length 48 [2023-02-15 14:03:08,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:08,139 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 1091 transitions. [2023-02-15 14:03:08,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 59 states have internal predecessors, (142), 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 14:03:08,139 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1091 transitions. [2023-02-15 14:03:08,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 14:03:08,140 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:08,140 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:08,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:08,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-02-15 14:03:08,345 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:08,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:08,346 INFO L85 PathProgramCache]: Analyzing trace with hash 2064850028, now seen corresponding path program 3 times [2023-02-15 14:03:08,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:08,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130151442] [2023-02-15 14:03:08,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:08,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:08,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:08,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130151442] [2023-02-15 14:03:08,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130151442] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:08,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962296722] [2023-02-15 14:03:08,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:03:08,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:08,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:08,789 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:08,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-15 14:03:08,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-15 14:03:08,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:08,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-15 14:03:08,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 14 proven. 58 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-02-15 14:03:09,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-02-15 14:03:09,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962296722] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:09,485 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:09,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 12, 12] total 48 [2023-02-15 14:03:09,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082463744] [2023-02-15 14:03:09,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:09,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 14:03:09,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:09,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 14:03:09,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=1989, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 14:03:09,487 INFO L87 Difference]: Start difference. First operand 865 states and 1091 transitions. Second operand has 48 states, 48 states have (on average 2.6666666666666665) internal successors, (128), 48 states have internal predecessors, (128), 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 14:03:12,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:12,746 INFO L93 Difference]: Finished difference Result 1931 states and 2339 transitions. [2023-02-15 14:03:12,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2023-02-15 14:03:12,747 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.6666666666666665) internal successors, (128), 48 states have internal predecessors, (128), 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 58 [2023-02-15 14:03:12,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:12,749 INFO L225 Difference]: With dead ends: 1931 [2023-02-15 14:03:12,749 INFO L226 Difference]: Without dead ends: 795 [2023-02-15 14:03:12,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6474 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2415, Invalid=20235, Unknown=0, NotChecked=0, Total=22650 [2023-02-15 14:03:12,756 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 927 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:12,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 408 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-15 14:03:12,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-02-15 14:03:12,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 548. [2023-02-15 14:03:12,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 546 states have (on average 1.1465201465201464) internal successors, (626), 547 states have internal predecessors, (626), 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 14:03:12,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 626 transitions. [2023-02-15 14:03:12,881 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 626 transitions. Word has length 58 [2023-02-15 14:03:12,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:12,881 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 626 transitions. [2023-02-15 14:03:12,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.6666666666666665) internal successors, (128), 48 states have internal predecessors, (128), 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 14:03:12,882 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 626 transitions. [2023-02-15 14:03:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-02-15 14:03:12,883 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:12,883 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:12,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:13,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-02-15 14:03:13,086 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:13,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:13,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2047235643, now seen corresponding path program 4 times [2023-02-15 14:03:13,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:13,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118354163] [2023-02-15 14:03:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:13,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:13,570 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:13,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:13,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118354163] [2023-02-15 14:03:13,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118354163] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:13,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755478102] [2023-02-15 14:03:13,570 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 14:03:13,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:13,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:13,573 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:13,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-15 14:03:13,616 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 14:03:13,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:13,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-15 14:03:13,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:14,185 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:14,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:14,830 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:14,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755478102] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:14,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:14,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 82 [2023-02-15 14:03:14,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971553440] [2023-02-15 14:03:14,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:14,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2023-02-15 14:03:14,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:14,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2023-02-15 14:03:14,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1276, Invalid=5530, Unknown=0, NotChecked=0, Total=6806 [2023-02-15 14:03:14,834 INFO L87 Difference]: Start difference. First operand 548 states and 626 transitions. Second operand has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 states have internal predecessors, (190), 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 14:03:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:16,410 INFO L93 Difference]: Finished difference Result 1098 states and 1231 transitions. [2023-02-15 14:03:16,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-02-15 14:03:16,411 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 states have internal predecessors, (190), 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 64 [2023-02-15 14:03:16,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:16,413 INFO L225 Difference]: With dead ends: 1098 [2023-02-15 14:03:16,413 INFO L226 Difference]: Without dead ends: 1039 [2023-02-15 14:03:16,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7520 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4411, Invalid=16181, Unknown=0, NotChecked=0, Total=20592 [2023-02-15 14:03:16,415 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 572 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:16,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 132 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 14:03:16,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2023-02-15 14:03:16,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 683. [2023-02-15 14:03:16,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 681 states have (on average 1.133627019089574) internal successors, (772), 682 states have internal predecessors, (772), 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 14:03:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 772 transitions. [2023-02-15 14:03:16,565 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 772 transitions. Word has length 64 [2023-02-15 14:03:16,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:16,566 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 772 transitions. [2023-02-15 14:03:16,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 states have internal predecessors, (190), 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 14:03:16,566 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 772 transitions. [2023-02-15 14:03:16,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-02-15 14:03:16,567 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:16,567 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 6, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2023-02-15 14:03:16,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:16,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-02-15 14:03:16,772 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:16,772 INFO L85 PathProgramCache]: Analyzing trace with hash 62712667, now seen corresponding path program 2 times [2023-02-15 14:03:16,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:16,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307397272] [2023-02-15 14:03:16,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:16,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:17,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:17,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307397272] [2023-02-15 14:03:17,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307397272] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:17,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819783072] [2023-02-15 14:03:17,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:03:17,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:17,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:17,089 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:17,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-15 14:03:17,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 14:03:17,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:17,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 14:03:17,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:17,211 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-02-15 14:03:17,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:17,293 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-02-15 14:03:17,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819783072] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:17,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:17,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 3, 3] total 25 [2023-02-15 14:03:17,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624437955] [2023-02-15 14:03:17,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:17,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 14:03:17,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:17,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 14:03:17,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2023-02-15 14:03:17,296 INFO L87 Difference]: Start difference. First operand 683 states and 772 transitions. Second operand has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 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 14:03:17,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:17,960 INFO L93 Difference]: Finished difference Result 1332 states and 1471 transitions. [2023-02-15 14:03:17,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-15 14:03:17,960 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 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 70 [2023-02-15 14:03:17,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:17,964 INFO L225 Difference]: With dead ends: 1332 [2023-02-15 14:03:17,964 INFO L226 Difference]: Without dead ends: 1331 [2023-02-15 14:03:17,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=636, Invalid=1716, Unknown=0, NotChecked=0, Total=2352 [2023-02-15 14:03:17,965 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 178 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:17,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 115 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 14:03:17,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2023-02-15 14:03:18,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 557. [2023-02-15 14:03:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 556 states have (on average 1.1097122302158273) internal successors, (617), 556 states have internal predecessors, (617), 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 14:03:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 617 transitions. [2023-02-15 14:03:18,141 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 617 transitions. Word has length 70 [2023-02-15 14:03:18,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:18,141 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 617 transitions. [2023-02-15 14:03:18,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 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 14:03:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 617 transitions. [2023-02-15 14:03:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-02-15 14:03:18,143 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:18,143 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2023-02-15 14:03:18,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:18,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:18,349 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:18,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:18,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2088131041, now seen corresponding path program 1 times [2023-02-15 14:03:18,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:18,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64671822] [2023-02-15 14:03:18,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:18,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:18,933 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:18,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:18,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64671822] [2023-02-15 14:03:18,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64671822] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:18,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542463989] [2023-02-15 14:03:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:18,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:18,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:18,935 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:18,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-15 14:03:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:18,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 35 conjunts are in the unsatisfiable core [2023-02-15 14:03:18,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:19,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:20,627 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 339 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:20,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542463989] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:20,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:20,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 100 [2023-02-15 14:03:20,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919099458] [2023-02-15 14:03:20,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:20,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2023-02-15 14:03:20,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:20,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2023-02-15 14:03:20,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2034, Invalid=8066, Unknown=0, NotChecked=0, Total=10100 [2023-02-15 14:03:20,630 INFO L87 Difference]: Start difference. First operand 557 states and 617 transitions. Second operand has 101 states, 100 states have (on average 2.29) internal successors, (229), 101 states have internal predecessors, (229), 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 14:03:22,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:22,890 INFO L93 Difference]: Finished difference Result 1049 states and 1193 transitions. [2023-02-15 14:03:22,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2023-02-15 14:03:22,890 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 2.29) internal successors, (229), 101 states have internal predecessors, (229), 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 77 [2023-02-15 14:03:22,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:22,892 INFO L225 Difference]: With dead ends: 1049 [2023-02-15 14:03:22,892 INFO L226 Difference]: Without dead ends: 978 [2023-02-15 14:03:22,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11490 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=6278, Invalid=25228, Unknown=0, NotChecked=0, Total=31506 [2023-02-15 14:03:22,894 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 757 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:22,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 147 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 14:03:22,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2023-02-15 14:03:23,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 648. [2023-02-15 14:03:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 647 states have (on average 1.1251931993817619) internal successors, (728), 647 states have internal predecessors, (728), 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 14:03:23,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 728 transitions. [2023-02-15 14:03:23,074 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 728 transitions. Word has length 77 [2023-02-15 14:03:23,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:23,074 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 728 transitions. [2023-02-15 14:03:23,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 2.29) internal successors, (229), 101 states have internal predecessors, (229), 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 14:03:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 728 transitions. [2023-02-15 14:03:23,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-02-15 14:03:23,076 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:23,076 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:23,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:23,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:23,281 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:23,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:23,281 INFO L85 PathProgramCache]: Analyzing trace with hash -617037781, now seen corresponding path program 2 times [2023-02-15 14:03:23,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:23,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665209524] [2023-02-15 14:03:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:23,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:24,023 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:24,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:24,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665209524] [2023-02-15 14:03:24,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665209524] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:24,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172665039] [2023-02-15 14:03:24,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:03:24,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:24,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:24,026 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:24,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-02-15 14:03:24,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:03:24,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:24,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-15 14:03:24,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:24,915 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:24,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:26,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172665039] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:26,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:26,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2023-02-15 14:03:26,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692185285] [2023-02-15 14:03:26,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:26,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2023-02-15 14:03:26,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:26,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2023-02-15 14:03:26,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3096, Invalid=10946, Unknown=0, NotChecked=0, Total=14042 [2023-02-15 14:03:26,105 INFO L87 Difference]: Start difference. First operand 648 states and 728 transitions. Second operand has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 states have internal predecessors, (250), 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 14:03:27,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:27,415 INFO L93 Difference]: Finished difference Result 946 states and 1045 transitions. [2023-02-15 14:03:27,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-02-15 14:03:27,416 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 states have internal predecessors, (250), 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 84 [2023-02-15 14:03:27,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:27,418 INFO L225 Difference]: With dead ends: 946 [2023-02-15 14:03:27,418 INFO L226 Difference]: Without dead ends: 907 [2023-02-15 14:03:27,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9966 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5767, Invalid=19039, Unknown=0, NotChecked=0, Total=24806 [2023-02-15 14:03:27,420 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 458 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:27,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 117 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 14:03:27,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2023-02-15 14:03:27,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 731. [2023-02-15 14:03:27,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 730 states have (on average 1.110958904109589) internal successors, (811), 730 states have internal predecessors, (811), 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 14:03:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 811 transitions. [2023-02-15 14:03:27,632 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 811 transitions. Word has length 84 [2023-02-15 14:03:27,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:27,632 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 811 transitions. [2023-02-15 14:03:27,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 states have internal predecessors, (250), 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 14:03:27,632 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 811 transitions. [2023-02-15 14:03:27,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-02-15 14:03:27,634 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:27,634 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 7, 7, 7, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:27,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:27,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:27,839 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:27,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:27,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1323124214, now seen corresponding path program 5 times [2023-02-15 14:03:27,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:27,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610369023] [2023-02-15 14:03:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:27,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:28,503 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:28,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:28,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610369023] [2023-02-15 14:03:28,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610369023] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:28,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226487803] [2023-02-15 14:03:28,504 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 14:03:28,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:28,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:28,505 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:28,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-02-15 14:03:28,547 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2023-02-15 14:03:28,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:28,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 39 conjunts are in the unsatisfiable core [2023-02-15 14:03:28,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:29,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:30,363 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:30,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226487803] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:30,363 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:30,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 112 [2023-02-15 14:03:30,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49845875] [2023-02-15 14:03:30,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:30,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2023-02-15 14:03:30,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:30,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2023-02-15 14:03:30,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=10346, Unknown=0, NotChecked=0, Total=12656 [2023-02-15 14:03:30,365 INFO L87 Difference]: Start difference. First operand 731 states and 811 transitions. Second operand has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 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 14:03:33,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:33,224 INFO L93 Difference]: Finished difference Result 1757 states and 1933 transitions. [2023-02-15 14:03:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2023-02-15 14:03:33,225 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 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) Word has length 86 [2023-02-15 14:03:33,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:33,228 INFO L225 Difference]: With dead ends: 1757 [2023-02-15 14:03:33,228 INFO L226 Difference]: Without dead ends: 1676 [2023-02-15 14:03:33,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15729 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=8856, Invalid=33374, Unknown=0, NotChecked=0, Total=42230 [2023-02-15 14:03:33,230 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1092 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:33,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 152 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 14:03:33,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2023-02-15 14:03:33,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 957. [2023-02-15 14:03:33,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 956 states have (on average 1.1171548117154813) internal successors, (1068), 956 states have internal predecessors, (1068), 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 14:03:33,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1068 transitions. [2023-02-15 14:03:33,503 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1068 transitions. Word has length 86 [2023-02-15 14:03:33,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:33,503 INFO L495 AbstractCegarLoop]: Abstraction has 957 states and 1068 transitions. [2023-02-15 14:03:33,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 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 14:03:33,503 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1068 transitions. [2023-02-15 14:03:33,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-02-15 14:03:33,504 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:33,505 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2023-02-15 14:03:33,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-02-15 14:03:33,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:33,705 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:33,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:33,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1698227726, now seen corresponding path program 2 times [2023-02-15 14:03:33,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:33,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193344121] [2023-02-15 14:03:33,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:33,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:34,487 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:34,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:34,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193344121] [2023-02-15 14:03:34,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193344121] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:34,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854395386] [2023-02-15 14:03:34,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:03:34,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:34,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:34,489 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:34,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-02-15 14:03:34,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:03:34,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:34,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-15 14:03:34,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:35,448 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:35,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:36,601 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 439 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:36,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854395386] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:36,602 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:36,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2023-02-15 14:03:36,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970661879] [2023-02-15 14:03:36,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:36,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2023-02-15 14:03:36,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:36,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2023-02-15 14:03:36,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2680, Invalid=11362, Unknown=0, NotChecked=0, Total=14042 [2023-02-15 14:03:36,605 INFO L87 Difference]: Start difference. First operand 957 states and 1068 transitions. Second operand has 119 states, 118 states have (on average 2.347457627118644) internal successors, (277), 119 states have internal predecessors, (277), 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 14:03:40,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:40,735 INFO L93 Difference]: Finished difference Result 2591 states and 2938 transitions. [2023-02-15 14:03:40,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2023-02-15 14:03:40,735 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.347457627118644) internal successors, (277), 119 states have internal predecessors, (277), 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 93 [2023-02-15 14:03:40,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:40,740 INFO L225 Difference]: With dead ends: 2591 [2023-02-15 14:03:40,740 INFO L226 Difference]: Without dead ends: 2474 [2023-02-15 14:03:40,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 244 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23291 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=11989, Invalid=48281, Unknown=0, NotChecked=0, Total=60270 [2023-02-15 14:03:40,743 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1073 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:40,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 154 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 14:03:40,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2023-02-15 14:03:41,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 1226. [2023-02-15 14:03:41,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1225 states have (on average 1.129795918367347) internal successors, (1384), 1225 states have internal predecessors, (1384), 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 14:03:41,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1384 transitions. [2023-02-15 14:03:41,012 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1384 transitions. Word has length 93 [2023-02-15 14:03:41,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:41,012 INFO L495 AbstractCegarLoop]: Abstraction has 1226 states and 1384 transitions. [2023-02-15 14:03:41,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.347457627118644) internal successors, (277), 119 states have internal predecessors, (277), 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 14:03:41,013 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1384 transitions. [2023-02-15 14:03:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-02-15 14:03:41,015 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:41,015 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 11, 9, 9, 9, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:41,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:41,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:41,220 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:41,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:41,221 INFO L85 PathProgramCache]: Analyzing trace with hash -887179862, now seen corresponding path program 6 times [2023-02-15 14:03:41,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:41,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636242058] [2023-02-15 14:03:41,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:41,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:42,309 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:42,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:42,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636242058] [2023-02-15 14:03:42,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636242058] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:42,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066979247] [2023-02-15 14:03:42,310 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 14:03:42,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:42,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:42,313 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:42,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-02-15 14:03:42,365 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2023-02-15 14:03:42,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:42,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 51 conjunts are in the unsatisfiable core [2023-02-15 14:03:42,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:43,611 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:43,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:45,291 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:45,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066979247] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:45,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:45,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 148 [2023-02-15 14:03:45,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029944735] [2023-02-15 14:03:45,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:45,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2023-02-15 14:03:45,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:45,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2023-02-15 14:03:45,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3970, Invalid=18082, Unknown=0, NotChecked=0, Total=22052 [2023-02-15 14:03:45,295 INFO L87 Difference]: Start difference. First operand 1226 states and 1384 transitions. Second operand has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 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 14:03:50,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:50,198 INFO L93 Difference]: Finished difference Result 3368 states and 3727 transitions. [2023-02-15 14:03:50,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2023-02-15 14:03:50,199 INFO L78 Accepts]: Start accepts. Automaton has has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 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 112 [2023-02-15 14:03:50,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:50,206 INFO L225 Difference]: With dead ends: 3368 [2023-02-15 14:03:50,206 INFO L226 Difference]: Without dead ends: 3267 [2023-02-15 14:03:50,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 280 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29906 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=16612, Invalid=62630, Unknown=0, NotChecked=0, Total=79242 [2023-02-15 14:03:50,210 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1289 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:50,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 195 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 14:03:50,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2023-02-15 14:03:50,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 1492. [2023-02-15 14:03:50,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1491 states have (on average 1.1314553990610328) internal successors, (1687), 1491 states have internal predecessors, (1687), 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 14:03:50,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1687 transitions. [2023-02-15 14:03:50,568 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1687 transitions. Word has length 112 [2023-02-15 14:03:50,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:50,568 INFO L495 AbstractCegarLoop]: Abstraction has 1492 states and 1687 transitions. [2023-02-15 14:03:50,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 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 14:03:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1687 transitions. [2023-02-15 14:03:50,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-02-15 14:03:50,571 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:50,571 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1] [2023-02-15 14:03:50,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-02-15 14:03:50,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-02-15 14:03:50,772 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:50,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:50,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1622142107, now seen corresponding path program 3 times [2023-02-15 14:03:50,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:50,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233554232] [2023-02-15 14:03:50,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:50,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:52,182 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 0 proven. 804 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:52,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:52,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233554232] [2023-02-15 14:03:52,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233554232] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:52,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693119356] [2023-02-15 14:03:52,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:03:52,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:52,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:52,184 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:52,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-02-15 14:03:52,218 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-02-15 14:03:52,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:03:52,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 14:03:52,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:52,340 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 283 proven. 16 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2023-02-15 14:03:52,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:03:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 283 proven. 16 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2023-02-15 14:03:52,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693119356] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:03:52,375 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:03:52,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 6, 6] total 59 [2023-02-15 14:03:52,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244419243] [2023-02-15 14:03:52,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:03:52,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-02-15 14:03:52,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:03:52,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-02-15 14:03:52,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=647, Invalid=2775, Unknown=0, NotChecked=0, Total=3422 [2023-02-15 14:03:52,378 INFO L87 Difference]: Start difference. First operand 1492 states and 1687 transitions. Second operand has 59 states, 59 states have (on average 2.694915254237288) internal successors, (159), 59 states have internal predecessors, (159), 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 14:03:54,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:03:54,477 INFO L93 Difference]: Finished difference Result 2068 states and 2301 transitions. [2023-02-15 14:03:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-02-15 14:03:54,477 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.694915254237288) internal successors, (159), 59 states have internal predecessors, (159), 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 127 [2023-02-15 14:03:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:03:54,479 INFO L225 Difference]: With dead ends: 2068 [2023-02-15 14:03:54,479 INFO L226 Difference]: Without dead ends: 812 [2023-02-15 14:03:54,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3394 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2875, Invalid=12875, Unknown=0, NotChecked=0, Total=15750 [2023-02-15 14:03:54,481 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 444 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:03:54,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 131 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 14:03:54,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2023-02-15 14:03:54,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 560. [2023-02-15 14:03:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.0500894454382828) internal successors, (587), 559 states have internal predecessors, (587), 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 14:03:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 587 transitions. [2023-02-15 14:03:54,702 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 587 transitions. Word has length 127 [2023-02-15 14:03:54,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:03:54,703 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 587 transitions. [2023-02-15 14:03:54,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.694915254237288) internal successors, (159), 59 states have internal predecessors, (159), 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 14:03:54,703 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 587 transitions. [2023-02-15 14:03:54,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-02-15 14:03:54,705 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:03:54,705 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 15, 11, 11, 11, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2023-02-15 14:03:54,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-02-15 14:03:54,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-02-15 14:03:54,910 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:03:54,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:03:54,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1523760293, now seen corresponding path program 7 times [2023-02-15 14:03:54,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:03:54,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48290791] [2023-02-15 14:03:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:03:54,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:03:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:56,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:03:56,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48290791] [2023-02-15 14:03:56,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48290791] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:03:56,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450824991] [2023-02-15 14:03:56,708 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 14:03:56,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:03:56,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:03:56,709 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:03:56,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-02-15 14:03:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:03:56,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 65 conjunts are in the unsatisfiable core [2023-02-15 14:03:56,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:03:58,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:03:58,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:04:01,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:01,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450824991] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:04:01,314 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:04:01,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2023-02-15 14:04:01,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002688598] [2023-02-15 14:04:01,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:04:01,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2023-02-15 14:04:01,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:04:01,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2023-02-15 14:04:01,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6496, Invalid=29794, Unknown=0, NotChecked=0, Total=36290 [2023-02-15 14:04:01,319 INFO L87 Difference]: Start difference. First operand 560 states and 587 transitions. Second operand has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 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 14:04:07,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:04:07,508 INFO L93 Difference]: Finished difference Result 1462 states and 1531 transitions. [2023-02-15 14:04:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2023-02-15 14:04:07,509 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 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 142 [2023-02-15 14:04:07,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:04:07,512 INFO L225 Difference]: With dead ends: 1462 [2023-02-15 14:04:07,512 INFO L226 Difference]: Without dead ends: 1415 [2023-02-15 14:04:07,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 329 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42706 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=23693, Invalid=85537, Unknown=0, NotChecked=0, Total=109230 [2023-02-15 14:04:07,515 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1526 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 14:04:07,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 253 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-15 14:04:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2023-02-15 14:04:07,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 650. [2023-02-15 14:04:07,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 1.0431432973805854) internal successors, (677), 649 states have internal predecessors, (677), 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 14:04:07,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 677 transitions. [2023-02-15 14:04:07,814 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 677 transitions. Word has length 142 [2023-02-15 14:04:07,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:04:07,814 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 677 transitions. [2023-02-15 14:04:07,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 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 14:04:07,814 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 677 transitions. [2023-02-15 14:04:07,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-02-15 14:04:07,816 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:04:07,816 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 13, 13, 12, 12, 12, 12, 11, 11, 2, 1, 1, 1, 1, 1] [2023-02-15 14:04:07,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-02-15 14:04:08,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-02-15 14:04:08,022 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:04:08,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:04:08,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1425838077, now seen corresponding path program 1 times [2023-02-15 14:04:08,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:04:08,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24834884] [2023-02-15 14:04:08,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:04:08,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:04:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:04:10,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 0 proven. 1401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:10,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:04:10,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24834884] [2023-02-15 14:04:10,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24834884] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:04:10,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90914592] [2023-02-15 14:04:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:04:10,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:04:10,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:04:10,156 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:04:10,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-02-15 14:04:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:04:10,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 71 conjunts are in the unsatisfiable core [2023-02-15 14:04:10,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:04:12,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 0 proven. 1401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:12,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:04:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1401 backedges. 0 proven. 1401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:15,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90914592] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:04:15,753 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:04:15,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70, 70] total 208 [2023-02-15 14:04:15,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722959616] [2023-02-15 14:04:15,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:04:15,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 209 states [2023-02-15 14:04:15,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:04:15,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 209 interpolants. [2023-02-15 14:04:15,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7758, Invalid=35714, Unknown=0, NotChecked=0, Total=43472 [2023-02-15 14:04:15,759 INFO L87 Difference]: Start difference. First operand 650 states and 677 transitions. Second operand has 209 states, 208 states have (on average 2.4278846153846154) internal successors, (505), 209 states have internal predecessors, (505), 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 14:04:24,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:04:24,192 INFO L93 Difference]: Finished difference Result 1496 states and 1589 transitions. [2023-02-15 14:04:24,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 248 states. [2023-02-15 14:04:24,192 INFO L78 Accepts]: Start accepts. Automaton has has 209 states, 208 states have (on average 2.4278846153846154) internal successors, (505), 209 states have internal predecessors, (505), 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 169 [2023-02-15 14:04:24,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:04:24,195 INFO L225 Difference]: With dead ends: 1496 [2023-02-15 14:04:24,195 INFO L226 Difference]: Without dead ends: 1427 [2023-02-15 14:04:24,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 383 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58724 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=29075, Invalid=118765, Unknown=0, NotChecked=0, Total=147840 [2023-02-15 14:04:24,200 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1472 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-15 14:04:24,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 266 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-15 14:04:24,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2023-02-15 14:04:24,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 810. [2023-02-15 14:04:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 809 states have (on average 1.0605686032138442) internal successors, (858), 809 states have internal predecessors, (858), 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 14:04:24,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 858 transitions. [2023-02-15 14:04:24,502 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 858 transitions. Word has length 169 [2023-02-15 14:04:24,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:04:24,502 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 858 transitions. [2023-02-15 14:04:24,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 209 states, 208 states have (on average 2.4278846153846154) internal successors, (505), 209 states have internal predecessors, (505), 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 14:04:24,503 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 858 transitions. [2023-02-15 14:04:24,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-02-15 14:04:24,505 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:04:24,505 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 20, 13, 13, 13, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2023-02-15 14:04:24,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-02-15 14:04:24,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:04:24,710 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:04:24,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:04:24,711 INFO L85 PathProgramCache]: Analyzing trace with hash -23699845, now seen corresponding path program 8 times [2023-02-15 14:04:24,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:04:24,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394270468] [2023-02-15 14:04:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:04:24,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:04:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:04:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:27,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:04:27,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394270468] [2023-02-15 14:04:27,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394270468] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:04:27,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922472471] [2023-02-15 14:04:27,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 14:04:27,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:04:27,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:04:27,172 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:04:27,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-02-15 14:04:27,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 14:04:27,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:04:27,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 81 conjunts are in the unsatisfiable core [2023-02-15 14:04:27,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:04:30,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:30,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:04:34,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:34,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922472471] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:04:34,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:04:34,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80, 80] total 238 [2023-02-15 14:04:34,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927668319] [2023-02-15 14:04:34,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:04:34,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 239 states [2023-02-15 14:04:34,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:04:34,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 239 interpolants. [2023-02-15 14:04:34,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10176, Invalid=46706, Unknown=0, NotChecked=0, Total=56882 [2023-02-15 14:04:34,201 INFO L87 Difference]: Start difference. First operand 810 states and 858 transitions. Second operand has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 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 14:04:43,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:04:43,904 INFO L93 Difference]: Finished difference Result 2149 states and 2251 transitions. [2023-02-15 14:04:43,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2023-02-15 14:04:43,904 INFO L78 Accepts]: Start accepts. Automaton has has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 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 176 [2023-02-15 14:04:43,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:04:43,910 INFO L225 Difference]: With dead ends: 2149 [2023-02-15 14:04:43,910 INFO L226 Difference]: Without dead ends: 2090 [2023-02-15 14:04:43,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 413 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67808 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=37458, Invalid=134352, Unknown=0, NotChecked=0, Total=171810 [2023-02-15 14:04:43,917 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2228 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2228 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-15 14:04:43,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2228 Valid, 287 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-15 14:04:43,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2023-02-15 14:04:44,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 942. [2023-02-15 14:04:44,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 941 states have (on average 1.0520722635494155) internal successors, (990), 941 states have internal predecessors, (990), 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 14:04:44,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 990 transitions. [2023-02-15 14:04:44,311 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 990 transitions. Word has length 176 [2023-02-15 14:04:44,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:04:44,311 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 990 transitions. [2023-02-15 14:04:44,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 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 14:04:44,311 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 990 transitions. [2023-02-15 14:04:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-02-15 14:04:44,314 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:04:44,314 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 26, 15, 15, 15, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2023-02-15 14:04:44,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-02-15 14:04:44,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-02-15 14:04:44,519 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:04:44,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:04:44,520 INFO L85 PathProgramCache]: Analyzing trace with hash 278452780, now seen corresponding path program 9 times [2023-02-15 14:04:44,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:04:44,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394233073] [2023-02-15 14:04:44,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:04:44,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:04:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:04:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:48,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:04:48,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394233073] [2023-02-15 14:04:48,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394233073] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:04:48,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659678931] [2023-02-15 14:04:48,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 14:04:48,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:04:48,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:04:48,207 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:04:48,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-02-15 14:04:48,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2023-02-15 14:04:48,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:04:48,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 99 conjunts are in the unsatisfiable core [2023-02-15 14:04:48,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:04:52,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:52,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:04:58,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:04:58,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659678931] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:04:58,445 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:04:58,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98, 98] total 292 [2023-02-15 14:04:58,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184156677] [2023-02-15 14:04:58,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:04:58,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 293 states [2023-02-15 14:04:58,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:04:58,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 293 interpolants. [2023-02-15 14:04:58,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15346, Invalid=70210, Unknown=0, NotChecked=0, Total=85556 [2023-02-15 14:04:58,459 INFO L87 Difference]: Start difference. First operand 942 states and 990 transitions. Second operand has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 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 14:05:13,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:13,784 INFO L93 Difference]: Finished difference Result 2439 states and 2555 transitions. [2023-02-15 14:05:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2023-02-15 14:05:13,784 INFO L78 Accepts]: Start accepts. Automaton has has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 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 214 [2023-02-15 14:05:13,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:13,789 INFO L225 Difference]: With dead ends: 2439 [2023-02-15 14:05:13,790 INFO L226 Difference]: Without dead ends: 2366 [2023-02-15 14:05:13,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 507 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102689 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=56723, Invalid=201849, Unknown=0, NotChecked=0, Total=258572 [2023-02-15 14:05:13,800 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2676 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:13,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 360 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1901 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-02-15 14:05:13,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2023-02-15 14:05:14,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 1096. [2023-02-15 14:05:14,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1095 states have (on average 1.0447488584474887) internal successors, (1144), 1095 states have internal predecessors, (1144), 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 14:05:14,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1144 transitions. [2023-02-15 14:05:14,298 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1144 transitions. Word has length 214 [2023-02-15 14:05:14,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:14,298 INFO L495 AbstractCegarLoop]: Abstraction has 1096 states and 1144 transitions. [2023-02-15 14:05:14,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 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 14:05:14,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1144 transitions. [2023-02-15 14:05:14,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-02-15 14:05:14,302 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:14,303 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 33, 17, 17, 17, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2023-02-15 14:05:14,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-02-15 14:05:14,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-02-15 14:05:14,509 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:05:14,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:14,509 INFO L85 PathProgramCache]: Analyzing trace with hash -125592008, now seen corresponding path program 10 times [2023-02-15 14:05:14,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:14,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245958227] [2023-02-15 14:05:14,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:14,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:05:19,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:19,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:05:19,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245958227] [2023-02-15 14:05:19,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245958227] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:05:19,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193536220] [2023-02-15 14:05:19,447 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 14:05:19,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:05:19,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:05:19,448 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:05:19,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-02-15 14:05:19,533 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 14:05:19,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:05:19,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 119 conjunts are in the unsatisfiable core [2023-02-15 14:05:19,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:05:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:25,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:05:34,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:05:34,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193536220] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:05:34,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:05:34,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 118, 118] total 352 [2023-02-15 14:05:34,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560330816] [2023-02-15 14:05:34,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:05:34,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 353 states [2023-02-15 14:05:34,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:05:34,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 353 interpolants. [2023-02-15 14:05:34,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22390, Invalid=101866, Unknown=0, NotChecked=0, Total=124256 [2023-02-15 14:05:34,196 INFO L87 Difference]: Start difference. First operand 1096 states and 1144 transitions. Second operand has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 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 14:05:58,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:05:58,386 INFO L93 Difference]: Finished difference Result 2880 states and 3012 transitions. [2023-02-15 14:05:58,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 379 states. [2023-02-15 14:05:58,386 INFO L78 Accepts]: Start accepts. Automaton has has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 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 256 [2023-02-15 14:05:58,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 14:05:58,390 INFO L225 Difference]: With dead ends: 2880 [2023-02-15 14:05:58,390 INFO L226 Difference]: Without dead ends: 2791 [2023-02-15 14:05:58,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 611 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149713 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=82835, Invalid=292321, Unknown=0, NotChecked=0, Total=375156 [2023-02-15 14:05:58,403 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3440 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3440 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-15 14:05:58,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3440 Valid, 410 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-02-15 14:05:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2023-02-15 14:05:59,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 1272. [2023-02-15 14:05:59,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1271 states have (on average 1.038552321007081) internal successors, (1320), 1271 states have internal predecessors, (1320), 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 14:05:59,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1320 transitions. [2023-02-15 14:05:59,009 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1320 transitions. Word has length 256 [2023-02-15 14:05:59,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 14:05:59,009 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1320 transitions. [2023-02-15 14:05:59,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 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 14:05:59,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1320 transitions. [2023-02-15 14:05:59,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-02-15 14:05:59,013 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 14:05:59,013 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 24, 24, 24, 18, 18, 18, 17, 17, 7, 1, 1, 1, 1, 1, 1] [2023-02-15 14:05:59,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-02-15 14:05:59,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:05:59,220 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 14:05:59,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:05:59,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1579369729, now seen corresponding path program 11 times [2023-02-15 14:05:59,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:05:59,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446381709] [2023-02-15 14:05:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:05:59,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:05:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:06:04,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 0 proven. 3849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:04,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:06:04,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446381709] [2023-02-15 14:06:04,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446381709] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 14:06:04,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006558821] [2023-02-15 14:06:04,603 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 14:06:04,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 14:06:04,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:06:04,604 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 14:06:04,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-02-15 14:06:04,735 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 27 check-sat command(s) [2023-02-15 14:06:04,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 14:06:04,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 121 conjunts are in the unsatisfiable core [2023-02-15 14:06:04,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:06:10,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 0 proven. 3849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:10,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 14:06:19,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3849 backedges. 0 proven. 3849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:06:19,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006558821] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 14:06:19,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 14:06:19,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 120, 120] total 358 [2023-02-15 14:06:19,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277593696] [2023-02-15 14:06:19,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 14:06:19,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 359 states [2023-02-15 14:06:19,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:06:19,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 359 interpolants. [2023-02-15 14:06:19,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22200, Invalid=106322, Unknown=0, NotChecked=0, Total=128522 [2023-02-15 14:06:19,762 INFO L87 Difference]: Start difference. First operand 1272 states and 1320 transitions. Second operand has 359 states, 358 states have (on average 2.3240223463687153) internal successors, (832), 359 states have internal predecessors, (832), 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)