./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3dbbec33 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-crafted/McCarthy91_Iteration.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 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:19:54,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:19:54,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:19:54,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:19:54,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:19:54,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:19:54,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:19:54,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:19:54,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:19:54,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:19:54,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:19:54,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:19:54,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:19:54,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:19:54,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:19:54,818 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:19:54,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:19:54,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:19:54,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:19:54,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:19:54,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:19:54,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:19:54,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:19:54,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:19:54,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:19:54,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:19:54,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:19:54,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:19:54,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:19:54,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:19:54,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:19:54,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:19:54,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:19:54,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:19:54,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:19:54,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:19:54,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:19:54,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:19:54,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:19:54,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:19:54,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:19:54,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-14 14:19:54,861 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:19:54,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:19:54,862 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:19:54,862 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:19:54,862 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 14:19:54,862 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 14:19:54,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:19:54,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:19:54,863 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:19:54,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:19:54,864 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:19:54,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:19:54,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:19:54,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 14:19:54,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 14:19:54,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 14:19:54,864 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-14 14:19:54,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:19:54,864 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:19:54,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 14:19:54,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:19:54,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:19:54,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 14:19:54,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:19:54,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:19:54,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 14:19:54,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 14:19:54,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:19:54,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 14:19:54,865 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 14:19:54,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 14:19:54,866 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 14:19:54,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 14:19:54,866 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 14:19:54,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 [2023-02-14 14:19:55,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:19:55,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:19:55,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:19:55,087 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:19:55,088 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:19:55,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2023-02-14 14:19:56,019 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:19:56,210 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:19:56,210 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2023-02-14 14:19:56,214 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97dfd903a/e69435373b814b7691e9c9324bad9ac6/FLAG17b0fd598 [2023-02-14 14:19:56,223 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97dfd903a/e69435373b814b7691e9c9324bad9ac6 [2023-02-14 14:19:56,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:19:56,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:19:56,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:19:56,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:19:56,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:19:56,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8f71ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56, skipping insertion in model container [2023-02-14 14:19:56,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:19:56,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:19:56,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:19:56,350 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:19:56,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:19:56,367 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:19:56,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56 WrapperNode [2023-02-14 14:19:56,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:19:56,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:19:56,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:19:56,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:19:56,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,390 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-14 14:19:56,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:19:56,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:19:56,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:19:56,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:19:56,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,400 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:19:56,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:19:56,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:19:56,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:19:56,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (1/1) ... [2023-02-14 14:19:56,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:19:56,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:19:56,463 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) [2023-02-14 14:19:56,466 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 [2023-02-14 14:19:56,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:19:56,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:19:56,553 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:19:56,555 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:19:56,620 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:19:56,624 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:19:56,624 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 14:19:56,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:19:56 BoogieIcfgContainer [2023-02-14 14:19:56,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:19:56,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 14:19:56,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 14:19:56,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 14:19:56,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 02:19:56" (1/3) ... [2023-02-14 14:19:56,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e1696a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:19:56, skipping insertion in model container [2023-02-14 14:19:56,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:19:56" (2/3) ... [2023-02-14 14:19:56,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70e1696a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:19:56, skipping insertion in model container [2023-02-14 14:19:56,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:19:56" (3/3) ... [2023-02-14 14:19:56,631 INFO L112 eAbstractionObserver]: Analyzing ICFG McCarthy91_Iteration.c [2023-02-14 14:19:56,642 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 14:19:56,642 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-14 14:19:56,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 14:19:56,677 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;@4d9c6305, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 14:19:56,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-14 14:19:56,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:56,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-14 14:19:56,684 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:56,684 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-14 14:19:56,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:56,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:56,688 INFO L85 PathProgramCache]: Analyzing trace with hash 28700073, now seen corresponding path program 1 times [2023-02-14 14:19:56,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:56,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673945193] [2023-02-14 14:19:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:56,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:56,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:56,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:56,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673945193] [2023-02-14 14:19:56,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673945193] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:19:56,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:19:56,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:19:56,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790230633] [2023-02-14 14:19:56,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:19:56,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:19:56,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:56,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:19:56,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:19:56,841 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:56,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:56,892 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2023-02-14 14:19:56,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:19:56,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-14 14:19:56,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:56,907 INFO L225 Difference]: With dead ends: 41 [2023-02-14 14:19:56,907 INFO L226 Difference]: Without dead ends: 28 [2023-02-14 14:19:56,909 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 [2023-02-14 14:19:56,912 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:19:56,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 30 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:19:56,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-14 14:19:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2023-02-14 14:19:56,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:56,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-02-14 14:19:56,970 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 5 [2023-02-14 14:19:56,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:56,971 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-02-14 14:19:56,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:56,971 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-02-14 14:19:56,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-14 14:19:56,971 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:56,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-14 14:19:56,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 14:19:56,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:56,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:56,973 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2023-02-14 14:19:56,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:56,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666114147] [2023-02-14 14:19:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:56,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:57,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:57,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:57,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666114147] [2023-02-14 14:19:57,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666114147] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:19:57,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:19:57,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:19:57,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756163699] [2023-02-14 14:19:57,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:19:57,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:19:57,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:57,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:19:57,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:19:57,005 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:57,043 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2023-02-14 14:19:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:19:57,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-14 14:19:57,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:57,044 INFO L225 Difference]: With dead ends: 26 [2023-02-14 14:19:57,044 INFO L226 Difference]: Without dead ends: 25 [2023-02-14 14:19:57,045 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 [2023-02-14 14:19:57,046 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:19:57,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 27 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:19:57,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-14 14:19:57,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-14 14:19:57,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2023-02-14 14:19:57,052 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 5 [2023-02-14 14:19:57,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:57,053 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2023-02-14 14:19:57,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,053 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-02-14 14:19:57,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-14 14:19:57,053 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:57,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-14 14:19:57,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 14:19:57,054 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:57,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:57,055 INFO L85 PathProgramCache]: Analyzing trace with hash 889702321, now seen corresponding path program 1 times [2023-02-14 14:19:57,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:57,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275853178] [2023-02-14 14:19:57,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:57,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:57,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:57,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:57,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275853178] [2023-02-14 14:19:57,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275853178] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:19:57,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:19:57,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:19:57,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753956934] [2023-02-14 14:19:57,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:19:57,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:19:57,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:57,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:19:57,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:19:57,112 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:57,123 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2023-02-14 14:19:57,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:19:57,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-14 14:19:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:57,124 INFO L225 Difference]: With dead ends: 25 [2023-02-14 14:19:57,124 INFO L226 Difference]: Without dead ends: 24 [2023-02-14 14:19:57,124 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 [2023-02-14 14:19:57,125 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:19:57,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 26 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:19:57,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-14 14:19:57,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-14 14:19:57,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-02-14 14:19:57,129 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 6 [2023-02-14 14:19:57,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:57,130 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-02-14 14:19:57,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,130 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-02-14 14:19:57,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-14 14:19:57,130 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:57,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-14 14:19:57,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-14 14:19:57,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:57,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:57,135 INFO L85 PathProgramCache]: Analyzing trace with hash 889692391, now seen corresponding path program 1 times [2023-02-14 14:19:57,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:57,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051284957] [2023-02-14 14:19:57,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:57,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:57,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:57,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:57,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051284957] [2023-02-14 14:19:57,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051284957] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:19:57,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:19:57,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:19:57,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658490924] [2023-02-14 14:19:57,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:19:57,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:19:57,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:57,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:19:57,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:19:57,169 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:57,182 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2023-02-14 14:19:57,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:19:57,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-14 14:19:57,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:57,187 INFO L225 Difference]: With dead ends: 24 [2023-02-14 14:19:57,187 INFO L226 Difference]: Without dead ends: 23 [2023-02-14 14:19:57,188 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 [2023-02-14 14:19:57,189 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:19:57,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:19:57,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-14 14:19:57,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-14 14:19:57,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.5) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-02-14 14:19:57,195 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 6 [2023-02-14 14:19:57,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:57,200 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-02-14 14:19:57,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,200 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-02-14 14:19:57,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-14 14:19:57,201 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:57,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:19:57,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-14 14:19:57,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:57,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:57,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1810968235, now seen corresponding path program 1 times [2023-02-14 14:19:57,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:57,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508349647] [2023-02-14 14:19:57,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:57,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:57,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:57,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:57,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508349647] [2023-02-14 14:19:57,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508349647] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:19:57,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:19:57,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:19:57,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117919137] [2023-02-14 14:19:57,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:19:57,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:19:57,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:57,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:19:57,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:19:57,258 INFO L87 Difference]: Start difference. First operand 23 states and 27 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) [2023-02-14 14:19:57,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:57,278 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2023-02-14 14:19:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:19:57,279 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 [2023-02-14 14:19:57,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:57,279 INFO L225 Difference]: With dead ends: 24 [2023-02-14 14:19:57,279 INFO L226 Difference]: Without dead ends: 22 [2023-02-14 14:19:57,280 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 [2023-02-14 14:19:57,280 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:19:57,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:19:57,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-14 14:19:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2023-02-14 14:19:57,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2023-02-14 14:19:57,287 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 7 [2023-02-14 14:19:57,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:57,289 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2023-02-14 14:19:57,289 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) [2023-02-14 14:19:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-02-14 14:19:57,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-14 14:19:57,289 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:57,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:19:57,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-14 14:19:57,292 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:57,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:57,293 INFO L85 PathProgramCache]: Analyzing trace with hash 305440499, now seen corresponding path program 1 times [2023-02-14 14:19:57,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:57,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147126897] [2023-02-14 14:19:57,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:57,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:57,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:57,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:57,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147126897] [2023-02-14 14:19:57,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147126897] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:19:57,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:19:57,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:19:57,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816175693] [2023-02-14 14:19:57,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:19:57,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:19:57,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:57,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:19:57,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:19:57,330 INFO L87 Difference]: Start difference. First operand 21 states and 24 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) [2023-02-14 14:19:57,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:57,360 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2023-02-14 14:19:57,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:19:57,360 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 [2023-02-14 14:19:57,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:57,361 INFO L225 Difference]: With dead ends: 40 [2023-02-14 14:19:57,362 INFO L226 Difference]: Without dead ends: 38 [2023-02-14 14:19:57,362 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 [2023-02-14 14:19:57,363 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 19 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 [2023-02-14 14:19:57,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 19 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:19:57,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-14 14:19:57,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2023-02-14 14:19:57,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 36 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) [2023-02-14 14:19:57,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2023-02-14 14:19:57,370 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 8 [2023-02-14 14:19:57,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:57,370 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2023-02-14 14:19:57,370 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) [2023-02-14 14:19:57,371 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2023-02-14 14:19:57,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-14 14:19:57,371 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:57,371 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:19:57,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-14 14:19:57,371 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:57,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:57,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1808052898, now seen corresponding path program 1 times [2023-02-14 14:19:57,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:57,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367220771] [2023-02-14 14:19:57,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:57,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:57,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:57,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367220771] [2023-02-14 14:19:57,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367220771] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:19:57,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:19:57,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:19:57,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253201676] [2023-02-14 14:19:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:19:57,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:19:57,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:57,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:19:57,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:19:57,413 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-02-14 14:19:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:57,435 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2023-02-14 14:19:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:19:57,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2023-02-14 14:19:57,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:57,436 INFO L225 Difference]: With dead ends: 55 [2023-02-14 14:19:57,436 INFO L226 Difference]: Without dead ends: 27 [2023-02-14 14:19:57,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:19:57,440 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:19:57,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 27 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:19:57,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-14 14:19:57,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-14 14:19:57,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.25) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-14 14:19:57,444 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 11 [2023-02-14 14:19:57,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:57,444 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-14 14:19:57,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2023-02-14 14:19:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-14 14:19:57,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-14 14:19:57,445 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:57,445 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-02-14 14:19:57,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-14 14:19:57,445 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:57,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:57,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1697931620, now seen corresponding path program 1 times [2023-02-14 14:19:57,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:57,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792159530] [2023-02-14 14:19:57,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:57,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:57,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:57,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792159530] [2023-02-14 14:19:57,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792159530] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:19:57,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595688527] [2023-02-14 14:19:57,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:57,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:19:57,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:19:57,506 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) [2023-02-14 14:19:57,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 14:19:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:57,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:19:57,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:19:57,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:57,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:19:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:57,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595688527] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:19:57,643 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:19:57,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-14 14:19:57,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356740487] [2023-02-14 14:19:57,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:19:57,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-14 14:19:57,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:57,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 14:19:57,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:19:57,645 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:57,695 INFO L93 Difference]: Finished difference Result 91 states and 110 transitions. [2023-02-14 14:19:57,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:19:57,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-14 14:19:57,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:57,697 INFO L225 Difference]: With dead ends: 91 [2023-02-14 14:19:57,697 INFO L226 Difference]: Without dead ends: 89 [2023-02-14 14:19:57,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:19:57,698 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:19:57,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 45 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:19:57,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-02-14 14:19:57,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 77. [2023-02-14 14:19:57,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 76 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2023-02-14 14:19:57,707 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 14 [2023-02-14 14:19:57,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:57,707 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2023-02-14 14:19:57,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:57,707 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2023-02-14 14:19:57,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-14 14:19:57,708 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:57,708 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:19:57,712 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-14 14:19:57,909 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 [2023-02-14 14:19:57,909 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:57,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:57,912 INFO L85 PathProgramCache]: Analyzing trace with hash 421926545, now seen corresponding path program 1 times [2023-02-14 14:19:57,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:57,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986796563] [2023-02-14 14:19:57,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:57,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:57,993 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-14 14:19:57,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:57,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986796563] [2023-02-14 14:19:57,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986796563] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:19:57,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:19:57,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:19:57,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232777826] [2023-02-14 14:19:57,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:19:57,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:19:57,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:57,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:19:57,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:19:57,994 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:58,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:58,010 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2023-02-14 14:19:58,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:19:58,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-14 14:19:58,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:58,011 INFO L225 Difference]: With dead ends: 104 [2023-02-14 14:19:58,011 INFO L226 Difference]: Without dead ends: 47 [2023-02-14 14:19:58,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:19:58,011 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:19:58,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:19:58,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-14 14:19:58,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2023-02-14 14:19:58,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:58,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2023-02-14 14:19:58,016 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 17 [2023-02-14 14:19:58,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:58,016 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2023-02-14 14:19:58,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:58,016 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2023-02-14 14:19:58,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-14 14:19:58,017 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:58,017 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1] [2023-02-14 14:19:58,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-14 14:19:58,017 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:58,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:58,017 INFO L85 PathProgramCache]: Analyzing trace with hash -383140809, now seen corresponding path program 2 times [2023-02-14 14:19:58,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:58,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106534775] [2023-02-14 14:19:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:58,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:58,098 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:58,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:58,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106534775] [2023-02-14 14:19:58,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106534775] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:19:58,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607872909] [2023-02-14 14:19:58,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 14:19:58,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:19:58,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:19:58,106 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) [2023-02-14 14:19:58,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 14:19:58,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 14:19:58,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:19:58,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-14 14:19:58,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:19:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:58,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:19:58,293 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:58,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607872909] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:19:58,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:19:58,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-14 14:19:58,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389462922] [2023-02-14 14:19:58,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:19:58,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-14 14:19:58,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:58,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-14 14:19:58,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-14 14:19:58,296 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:58,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:58,369 INFO L93 Difference]: Finished difference Result 188 states and 227 transitions. [2023-02-14 14:19:58,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-14 14:19:58,369 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2023-02-14 14:19:58,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:58,370 INFO L225 Difference]: With dead ends: 188 [2023-02-14 14:19:58,370 INFO L226 Difference]: Without dead ends: 82 [2023-02-14 14:19:58,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-14 14:19:58,371 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 56 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:19:58,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 93 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:19:58,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-02-14 14:19:58,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-02-14 14:19:58,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.0625) internal successors, (85), 81 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) [2023-02-14 14:19:58,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 85 transitions. [2023-02-14 14:19:58,377 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 85 transitions. Word has length 32 [2023-02-14 14:19:58,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:58,377 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 85 transitions. [2023-02-14 14:19:58,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:58,378 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 85 transitions. [2023-02-14 14:19:58,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-02-14 14:19:58,379 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:58,379 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 1, 1, 1] [2023-02-14 14:19:58,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-14 14:19:58,583 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 [2023-02-14 14:19:58,584 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:58,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:58,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1154405789, now seen corresponding path program 3 times [2023-02-14 14:19:58,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:58,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626285520] [2023-02-14 14:19:58,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:58,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:19:58,805 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:58,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:19:58,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626285520] [2023-02-14 14:19:58,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626285520] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:19:58,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444319604] [2023-02-14 14:19:58,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 14:19:58,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:19:58,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:19:58,813 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) [2023-02-14 14:19:58,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-14 14:19:58,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-14 14:19:58,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:19:58,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-14 14:19:58,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:19:58,940 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:58,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:19:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:19:59,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444319604] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:19:59,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:19:59,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-14 14:19:59,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554698080] [2023-02-14 14:19:59,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:19:59,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-14 14:19:59,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:19:59,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-14 14:19:59,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-14 14:19:59,155 INFO L87 Difference]: Start difference. First operand 82 states and 85 transitions. Second operand has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 24 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:59,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:19:59,299 INFO L93 Difference]: Finished difference Result 404 states and 491 transitions. [2023-02-14 14:19:59,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-14 14:19:59,300 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 24 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-02-14 14:19:59,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:19:59,301 INFO L225 Difference]: With dead ends: 404 [2023-02-14 14:19:59,301 INFO L226 Difference]: Without dead ends: 154 [2023-02-14 14:19:59,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-14 14:19:59,302 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 128 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:19:59,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 195 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:19:59,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-02-14 14:19:59,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2023-02-14 14:19:59,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 152 states have (on average 1.0328947368421053) internal successors, (157), 153 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 157 transitions. [2023-02-14 14:19:59,310 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 157 transitions. Word has length 68 [2023-02-14 14:19:59,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:19:59,310 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 157 transitions. [2023-02-14 14:19:59,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 24 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:19:59,311 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 157 transitions. [2023-02-14 14:19:59,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-02-14 14:19:59,313 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:19:59,313 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 1, 1, 1] [2023-02-14 14:19:59,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-14 14:19:59,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:19:59,528 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:19:59,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:19:59,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1634457449, now seen corresponding path program 4 times [2023-02-14 14:19:59,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:19:59,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55265403] [2023-02-14 14:19:59,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:19:59,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:19:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:20:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:00,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:20:00,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55265403] [2023-02-14 14:20:00,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55265403] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:20:00,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613538308] [2023-02-14 14:20:00,030 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-14 14:20:00,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:20:00,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:20:00,045 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) [2023-02-14 14:20:00,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-14 14:20:00,102 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-14 14:20:00,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:20:00,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-14 14:20:00,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:20:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:00,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:20:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:00,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613538308] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:20:00,972 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:20:00,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-14 14:20:00,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612102405] [2023-02-14 14:20:00,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:20:00,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-14 14:20:00,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:20:00,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-14 14:20:00,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-14 14:20:00,974 INFO L87 Difference]: Start difference. First operand 154 states and 157 transitions. Second operand has 48 states, 47 states have (on average 5.9361702127659575) internal successors, (279), 48 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:20:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:20:01,281 INFO L93 Difference]: Finished difference Result 836 states and 1019 transitions. [2023-02-14 14:20:01,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-14 14:20:01,281 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.9361702127659575) internal successors, (279), 48 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-02-14 14:20:01,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:20:01,283 INFO L225 Difference]: With dead ends: 836 [2023-02-14 14:20:01,283 INFO L226 Difference]: Without dead ends: 298 [2023-02-14 14:20:01,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-14 14:20:01,287 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 372 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-14 14:20:01,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 478 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-14 14:20:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-02-14 14:20:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2023-02-14 14:20:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 296 states have (on average 1.0168918918918919) internal successors, (301), 297 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:20:01,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 301 transitions. [2023-02-14 14:20:01,308 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 301 transitions. Word has length 140 [2023-02-14 14:20:01,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:20:01,309 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 301 transitions. [2023-02-14 14:20:01,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.9361702127659575) internal successors, (279), 48 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:20:01,309 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 301 transitions. [2023-02-14 14:20:01,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-02-14 14:20:01,317 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:20:01,318 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 1, 1, 1] [2023-02-14 14:20:01,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-14 14:20:01,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:20:01,522 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:20:01,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:20:01,523 INFO L85 PathProgramCache]: Analyzing trace with hash -623175935, now seen corresponding path program 5 times [2023-02-14 14:20:01,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:20:01,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762136706] [2023-02-14 14:20:01,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:20:01,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:20:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:20:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:03,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:20:03,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762136706] [2023-02-14 14:20:03,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762136706] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:20:03,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529417863] [2023-02-14 14:20:03,106 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-14 14:20:03,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:20:03,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:20:03,107 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) [2023-02-14 14:20:03,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-14 14:20:03,200 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-14 14:20:03,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:20:03,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-14 14:20:03,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:20:03,524 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:03,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:20:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:05,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529417863] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:20:05,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:20:05,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-14 14:20:05,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970011854] [2023-02-14 14:20:05,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:20:05,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-14 14:20:05,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:20:05,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-14 14:20:05,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-14 14:20:05,835 INFO L87 Difference]: Start difference. First operand 298 states and 301 transitions. Second operand has 96 states, 95 states have (on average 5.968421052631579) internal successors, (567), 96 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:20:06,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:20:06,682 INFO L93 Difference]: Finished difference Result 1700 states and 2075 transitions. [2023-02-14 14:20:06,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-14 14:20:06,683 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.968421052631579) internal successors, (567), 96 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 284 [2023-02-14 14:20:06,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:20:06,685 INFO L225 Difference]: With dead ends: 1700 [2023-02-14 14:20:06,685 INFO L226 Difference]: Without dead ends: 586 [2023-02-14 14:20:06,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-14 14:20:06,690 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 884 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-14 14:20:06,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1126 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-14 14:20:06,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-02-14 14:20:06,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2023-02-14 14:20:06,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 584 states have (on average 1.0085616438356164) internal successors, (589), 585 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:20:06,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 589 transitions. [2023-02-14 14:20:06,701 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 589 transitions. Word has length 284 [2023-02-14 14:20:06,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:20:06,701 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 589 transitions. [2023-02-14 14:20:06,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.968421052631579) internal successors, (567), 96 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:20:06,702 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 589 transitions. [2023-02-14 14:20:06,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2023-02-14 14:20:06,707 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:20:06,707 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 1, 1, 1] [2023-02-14 14:20:06,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-14 14:20:06,912 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,SelfDestructingSolverStorable12 [2023-02-14 14:20:06,912 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:20:06,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:20:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash 534677041, now seen corresponding path program 6 times [2023-02-14 14:20:06,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:20:06,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963406901] [2023-02-14 14:20:06,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:20:06,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:20:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:20:11,987 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:11,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:20:11,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963406901] [2023-02-14 14:20:11,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963406901] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:20:11,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730937237] [2023-02-14 14:20:11,988 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-14 14:20:11,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:20:11,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:20:11,990 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) [2023-02-14 14:20:11,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-14 14:20:12,174 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-14 14:20:12,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:20:12,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-14 14:20:12,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:20:12,795 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:12,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:20:20,977 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:20,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730937237] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:20:20,978 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:20:20,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-14 14:20:20,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118749293] [2023-02-14 14:20:20,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:20:20,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-14 14:20:20,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:20:20,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-14 14:20:20,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-14 14:20:20,990 INFO L87 Difference]: Start difference. First operand 586 states and 589 transitions. Second operand has 192 states, 191 states have (on average 5.984293193717278) internal successors, (1143), 192 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:20:25,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:20:25,732 INFO L93 Difference]: Finished difference Result 3428 states and 4187 transitions. [2023-02-14 14:20:25,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-14 14:20:25,733 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.984293193717278) internal successors, (1143), 192 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 572 [2023-02-14 14:20:25,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:20:25,738 INFO L225 Difference]: With dead ends: 3428 [2023-02-14 14:20:25,738 INFO L226 Difference]: Without dead ends: 1162 [2023-02-14 14:20:25,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1238 GetRequests, 1048 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-14 14:20:25,742 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1856 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-14 14:20:25,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 2385 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-14 14:20:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2023-02-14 14:20:25,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2023-02-14 14:20:25,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1160 states have (on average 1.0043103448275863) internal successors, (1165), 1161 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:20:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1165 transitions. [2023-02-14 14:20:25,760 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1165 transitions. Word has length 572 [2023-02-14 14:20:25,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:20:25,761 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1165 transitions. [2023-02-14 14:20:25,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.984293193717278) internal successors, (1143), 192 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:20:25,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1165 transitions. [2023-02-14 14:20:25,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2023-02-14 14:20:25,780 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:20:25,781 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 191, 190, 1, 1, 1] [2023-02-14 14:20:25,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-14 14:20:25,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:20:25,988 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:20:25,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:20:25,989 INFO L85 PathProgramCache]: Analyzing trace with hash 486089873, now seen corresponding path program 7 times [2023-02-14 14:20:25,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:20:25,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945981065] [2023-02-14 14:20:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:20:25,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:20:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:20:46,902 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:46,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:20:46,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945981065] [2023-02-14 14:20:46,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945981065] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:20:46,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564181384] [2023-02-14 14:20:46,917 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-14 14:20:46,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:20:46,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:20:46,918 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) [2023-02-14 14:20:46,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-14 14:20:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:20:47,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-14 14:20:47,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:20:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:20:48,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:21:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:21:15,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564181384] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:21:15,152 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:21:15,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-14 14:21:15,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023078655] [2023-02-14 14:21:15,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:21:15,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-14 14:21:15,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:21:15,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-14 14:21:15,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-14 14:21:15,178 INFO L87 Difference]: Start difference. First operand 1162 states and 1165 transitions. Second operand has 384 states, 383 states have (on average 5.992167101827676) internal successors, (2295), 384 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:21:59,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:21:59,278 INFO L93 Difference]: Finished difference Result 6884 states and 8411 transitions. [2023-02-14 14:21:59,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-14 14:21:59,279 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 5.992167101827676) internal successors, (2295), 384 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1148 [2023-02-14 14:21:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:21:59,286 INFO L225 Difference]: With dead ends: 6884 [2023-02-14 14:21:59,286 INFO L226 Difference]: Without dead ends: 2314 [2023-02-14 14:21:59,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2486 GetRequests, 2104 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.4s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-14 14:21:59,296 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 4632 mSDsluCounter, 4700 mSDsCounter, 0 mSdLazyCounter, 3905 mSolverCounterSat, 1354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4632 SdHoareTripleChecker+Valid, 5280 SdHoareTripleChecker+Invalid, 5259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1354 IncrementalHoareTripleChecker+Valid, 3905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-02-14 14:21:59,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4632 Valid, 5280 Invalid, 5259 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1354 Valid, 3905 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-02-14 14:21:59,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2023-02-14 14:21:59,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2314. [2023-02-14 14:21:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2312 states have (on average 1.0021626297577855) internal successors, (2317), 2313 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:21:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2317 transitions. [2023-02-14 14:21:59,330 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2317 transitions. Word has length 1148 [2023-02-14 14:21:59,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:21:59,339 INFO L495 AbstractCegarLoop]: Abstraction has 2314 states and 2317 transitions. [2023-02-14 14:21:59,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 5.992167101827676) internal successors, (2295), 384 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:21:59,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2317 transitions. [2023-02-14 14:21:59,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2301 [2023-02-14 14:21:59,379 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:21:59,380 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 383, 382, 1, 1, 1] [2023-02-14 14:21:59,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-14 14:21:59,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:21:59,588 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-14 14:21:59,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:21:59,589 INFO L85 PathProgramCache]: Analyzing trace with hash 930963793, now seen corresponding path program 8 times [2023-02-14 14:21:59,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:21:59,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319304492] [2023-02-14 14:21:59,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:21:59,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:22:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 438918 backedges. 0 proven. 438918 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:48,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319304492] [2023-02-14 14:23:48,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319304492] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:48,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483573814] [2023-02-14 14:23:48,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 14:23:48,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:48,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:48,512 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) [2023-02-14 14:23:48,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-14 14:23:49,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 14:23:49,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:23:49,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 3835 conjuncts, 384 conjunts are in the unsatisfiable core [2023-02-14 14:23:49,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 438918 backedges. 0 proven. 438918 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:51,051 INFO L328 TraceCheckSpWp]: Computing backward predicates...