./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 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-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-?-574ddb4 [2023-02-17 09:17:33,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 09:17:33,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 09:17:33,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 09:17:33,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 09:17:33,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 09:17:33,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 09:17:33,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 09:17:33,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 09:17:33,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 09:17:33,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 09:17:33,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 09:17:33,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 09:17:33,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 09:17:33,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 09:17:33,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 09:17:33,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 09:17:33,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 09:17:33,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 09:17:33,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 09:17:33,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 09:17:33,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 09:17:33,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 09:17:33,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 09:17:33,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 09:17:33,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 09:17:33,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 09:17:33,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 09:17:33,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 09:17:33,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 09:17:33,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 09:17:33,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 09:17:33,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 09:17:33,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 09:17:33,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 09:17:33,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 09:17:33,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 09:17:33,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 09:17:33,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 09:17:33,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 09:17:33,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 09:17:33,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-17 09:17:33,297 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 09:17:33,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 09:17:33,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 09:17:33,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 09:17:33,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 09:17:33,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 09:17:33,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 09:17:33,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 09:17:33,303 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 09:17:33,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 09:17:33,304 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 09:17:33,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 09:17:33,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 09:17:33,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 09:17:33,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 09:17:33,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 09:17:33,306 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-17 09:17:33,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 09:17:33,306 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 09:17:33,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 09:17:33,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 09:17:33,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 09:17:33,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 09:17:33,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:17:33,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 09:17:33,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 09:17:33,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 09:17:33,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 09:17:33,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 09:17:33,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 09:17:33,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 09:17:33,309 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 09:17:33,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 09:17:33,309 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 09:17:33,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 [2023-02-17 09:17:33,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 09:17:33,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 09:17:33,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 09:17:33,622 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 09:17:33,623 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 09:17:33,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2023-02-17 09:17:34,781 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 09:17:34,952 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 09:17:34,952 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2023-02-17 09:17:34,957 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52100cc96/900e4cf6def34c3b8b103ea37eb2959e/FLAG53c5e9ed4 [2023-02-17 09:17:34,971 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52100cc96/900e4cf6def34c3b8b103ea37eb2959e [2023-02-17 09:17:34,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 09:17:34,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 09:17:34,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 09:17:34,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 09:17:34,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 09:17:34,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:17:34" (1/1) ... [2023-02-17 09:17:34,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72939c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:34, skipping insertion in model container [2023-02-17 09:17:34,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:17:34" (1/1) ... [2023-02-17 09:17:34,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 09:17:34,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 09:17:35,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:17:35,126 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 09:17:35,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:17:35,152 INFO L208 MainTranslator]: Completed translation [2023-02-17 09:17:35,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35 WrapperNode [2023-02-17 09:17:35,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 09:17:35,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 09:17:35,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 09:17:35,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 09:17:35,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,182 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-17 09:17:35,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 09:17:35,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 09:17:35,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 09:17:35,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 09:17:35,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,203 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 09:17:35,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 09:17:35,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 09:17:35,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 09:17:35,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (1/1) ... [2023-02-17 09:17:35,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:17:35,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:35,239 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) [2023-02-17 09:17:35,265 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 [2023-02-17 09:17:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 09:17:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 09:17:35,391 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 09:17:35,393 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 09:17:35,485 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 09:17:35,490 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 09:17:35,491 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 09:17:35,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:17:35 BoogieIcfgContainer [2023-02-17 09:17:35,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 09:17:35,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 09:17:35,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 09:17:35,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 09:17:35,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 09:17:34" (1/3) ... [2023-02-17 09:17:35,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c341cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:17:35, skipping insertion in model container [2023-02-17 09:17:35,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:17:35" (2/3) ... [2023-02-17 09:17:35,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c341cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:17:35, skipping insertion in model container [2023-02-17 09:17:35,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:17:35" (3/3) ... [2023-02-17 09:17:35,500 INFO L112 eAbstractionObserver]: Analyzing ICFG McCarthy91_Iteration.c [2023-02-17 09:17:35,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 09:17:35,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-17 09:17:35,555 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 09:17:35,564 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;@6e823016, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 09:17:35,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-17 09:17:35,569 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) [2023-02-17 09:17:35,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-17 09:17:35,575 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:35,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-17 09:17:35,577 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)] === [2023-02-17 09:17:35,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:35,587 INFO L85 PathProgramCache]: Analyzing trace with hash 28700073, now seen corresponding path program 1 times [2023-02-17 09:17:35,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:35,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247813455] [2023-02-17 09:17:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:35,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:35,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:35,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247813455] [2023-02-17 09:17:35,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247813455] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:35,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:17:35,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 09:17:35,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428569725] [2023-02-17 09:17:35,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:35,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 09:17:35,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:35,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 09:17:35,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:17:35,729 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) [2023-02-17 09:17:35,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:35,776 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2023-02-17 09:17:35,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 09:17:35,779 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 [2023-02-17 09:17:35,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:35,787 INFO L225 Difference]: With dead ends: 41 [2023-02-17 09:17:35,787 INFO L226 Difference]: Without dead ends: 28 [2023-02-17 09:17:35,789 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 [2023-02-17 09:17:35,792 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 [2023-02-17 09:17:35,793 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] [2023-02-17 09:17:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-17 09:17:35,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2023-02-17 09:17:35,833 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) [2023-02-17 09:17:35,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-02-17 09:17:35,850 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 5 [2023-02-17 09:17:35,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:35,850 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-02-17 09:17:35,851 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) [2023-02-17 09:17:35,851 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-02-17 09:17:35,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-17 09:17:35,851 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:35,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-17 09:17:35,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 09:17:35,852 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)] === [2023-02-17 09:17:35,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:35,853 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2023-02-17 09:17:35,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:35,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338396445] [2023-02-17 09:17:35,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:35,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:35,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:35,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338396445] [2023-02-17 09:17:35,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338396445] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:35,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:17:35,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 09:17:35,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100347919] [2023-02-17 09:17:35,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:35,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 09:17:35,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:35,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 09:17:35,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:17:35,899 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) [2023-02-17 09:17:35,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:35,923 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2023-02-17 09:17:35,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 09:17:35,924 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 [2023-02-17 09:17:35,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:35,925 INFO L225 Difference]: With dead ends: 26 [2023-02-17 09:17:35,925 INFO L226 Difference]: Without dead ends: 25 [2023-02-17 09:17:35,925 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 [2023-02-17 09:17:35,927 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 [2023-02-17 09:17:35,927 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] [2023-02-17 09:17:35,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-17 09:17:35,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-17 09:17:35,931 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) [2023-02-17 09:17:35,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2023-02-17 09:17:35,932 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 5 [2023-02-17 09:17:35,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:35,932 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2023-02-17 09:17:35,932 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) [2023-02-17 09:17:35,932 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-02-17 09:17:35,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 09:17:35,933 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:35,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 09:17:35,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 09:17:35,933 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)] === [2023-02-17 09:17:35,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:35,934 INFO L85 PathProgramCache]: Analyzing trace with hash 889702321, now seen corresponding path program 1 times [2023-02-17 09:17:35,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:35,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624062970] [2023-02-17 09:17:35,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:35,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:35,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:35,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624062970] [2023-02-17 09:17:35,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624062970] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:35,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:17:35,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 09:17:35,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497396553] [2023-02-17 09:17:35,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:35,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 09:17:35,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:35,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 09:17:35,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:17:35,964 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) [2023-02-17 09:17:35,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:35,978 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2023-02-17 09:17:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 09:17:35,979 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 [2023-02-17 09:17:35,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:35,979 INFO L225 Difference]: With dead ends: 25 [2023-02-17 09:17:35,980 INFO L226 Difference]: Without dead ends: 24 [2023-02-17 09:17:35,980 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 [2023-02-17 09:17:35,981 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 [2023-02-17 09:17:35,982 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] [2023-02-17 09:17:35,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-17 09:17:35,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-17 09:17:35,985 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) [2023-02-17 09:17:35,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-02-17 09:17:35,986 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 6 [2023-02-17 09:17:35,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:35,987 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-02-17 09:17:35,987 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) [2023-02-17 09:17:35,987 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-02-17 09:17:35,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 09:17:35,987 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:35,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 09:17:35,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 09:17:35,988 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)] === [2023-02-17 09:17:35,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:35,989 INFO L85 PathProgramCache]: Analyzing trace with hash 889692391, now seen corresponding path program 1 times [2023-02-17 09:17:35,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:35,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769656980] [2023-02-17 09:17:35,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:35,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:36,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:36,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:36,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769656980] [2023-02-17 09:17:36,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769656980] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:36,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:17:36,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 09:17:36,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289773072] [2023-02-17 09:17:36,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:36,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 09:17:36,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:36,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 09:17:36,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:17:36,025 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) [2023-02-17 09:17:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:36,046 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2023-02-17 09:17:36,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 09:17:36,047 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 [2023-02-17 09:17:36,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:36,048 INFO L225 Difference]: With dead ends: 24 [2023-02-17 09:17:36,048 INFO L226 Difference]: Without dead ends: 23 [2023-02-17 09:17:36,048 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 [2023-02-17 09:17:36,050 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 [2023-02-17 09:17:36,050 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] [2023-02-17 09:17:36,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-17 09:17:36,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-17 09:17:36,054 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) [2023-02-17 09:17:36,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-02-17 09:17:36,055 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 6 [2023-02-17 09:17:36,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:36,055 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-02-17 09:17:36,055 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) [2023-02-17 09:17:36,055 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-02-17 09:17:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 09:17:36,056 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:36,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:36,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-17 09:17:36,057 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)] === [2023-02-17 09:17:36,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:36,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1810968235, now seen corresponding path program 1 times [2023-02-17 09:17:36,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:36,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232012770] [2023-02-17 09:17:36,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:36,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:36,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:36,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232012770] [2023-02-17 09:17:36,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232012770] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:36,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:17:36,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 09:17:36,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119739947] [2023-02-17 09:17:36,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:36,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 09:17:36,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:36,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 09:17:36,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:17:36,103 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) [2023-02-17 09:17:36,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:36,139 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2023-02-17 09:17:36,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 09:17:36,139 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 [2023-02-17 09:17:36,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:36,140 INFO L225 Difference]: With dead ends: 24 [2023-02-17 09:17:36,140 INFO L226 Difference]: Without dead ends: 22 [2023-02-17 09:17:36,141 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 [2023-02-17 09:17:36,142 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 [2023-02-17 09:17:36,142 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] [2023-02-17 09:17:36,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-17 09:17:36,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2023-02-17 09:17:36,146 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) [2023-02-17 09:17:36,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2023-02-17 09:17:36,146 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 7 [2023-02-17 09:17:36,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:36,147 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2023-02-17 09:17:36,147 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) [2023-02-17 09:17:36,147 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-02-17 09:17:36,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-17 09:17:36,148 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:36,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:36,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-17 09:17:36,148 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)] === [2023-02-17 09:17:36,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:36,155 INFO L85 PathProgramCache]: Analyzing trace with hash 305440499, now seen corresponding path program 1 times [2023-02-17 09:17:36,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:36,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958386582] [2023-02-17 09:17:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:36,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:36,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:36,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:36,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958386582] [2023-02-17 09:17:36,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958386582] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:36,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:17:36,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 09:17:36,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786239211] [2023-02-17 09:17:36,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:36,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 09:17:36,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:36,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 09:17:36,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:17:36,216 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) [2023-02-17 09:17:36,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:36,237 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2023-02-17 09:17:36,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 09:17:36,238 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 [2023-02-17 09:17:36,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:36,241 INFO L225 Difference]: With dead ends: 40 [2023-02-17 09:17:36,241 INFO L226 Difference]: Without dead ends: 38 [2023-02-17 09:17:36,241 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 [2023-02-17 09:17:36,243 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 [2023-02-17 09:17:36,247 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] [2023-02-17 09:17:36,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-17 09:17:36,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2023-02-17 09:17:36,261 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) [2023-02-17 09:17:36,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2023-02-17 09:17:36,263 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 8 [2023-02-17 09:17:36,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:36,263 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2023-02-17 09:17:36,264 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) [2023-02-17 09:17:36,264 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2023-02-17 09:17:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-17 09:17:36,265 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:36,265 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:36,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-17 09:17:36,266 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)] === [2023-02-17 09:17:36,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:36,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1808052898, now seen corresponding path program 1 times [2023-02-17 09:17:36,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:36,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040679480] [2023-02-17 09:17:36,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:36,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:36,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:36,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:36,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040679480] [2023-02-17 09:17:36,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040679480] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:36,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:17:36,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 09:17:36,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923586788] [2023-02-17 09:17:36,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:36,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 09:17:36,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:36,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 09:17:36,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-17 09:17:36,319 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) [2023-02-17 09:17:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:36,349 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2023-02-17 09:17:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 09:17:36,349 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 [2023-02-17 09:17:36,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:36,350 INFO L225 Difference]: With dead ends: 55 [2023-02-17 09:17:36,350 INFO L226 Difference]: Without dead ends: 27 [2023-02-17 09:17:36,351 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 [2023-02-17 09:17:36,352 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 [2023-02-17 09:17:36,352 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] [2023-02-17 09:17:36,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-17 09:17:36,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-17 09:17:36,356 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) [2023-02-17 09:17:36,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-17 09:17:36,356 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 11 [2023-02-17 09:17:36,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:36,357 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-17 09:17:36,357 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) [2023-02-17 09:17:36,357 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-17 09:17:36,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-17 09:17:36,358 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:36,358 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-02-17 09:17:36,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-17 09:17:36,358 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)] === [2023-02-17 09:17:36,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:36,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1697931620, now seen corresponding path program 1 times [2023-02-17 09:17:36,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:36,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076319621] [2023-02-17 09:17:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:36,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:36,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:36,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076319621] [2023-02-17 09:17:36,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076319621] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:36,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744453844] [2023-02-17 09:17:36,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:36,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:36,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:36,405 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) [2023-02-17 09:17:36,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 09:17:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:36,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-17 09:17:36,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:36,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:17:36,540 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:36,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744453844] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:17:36,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:17:36,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-17 09:17:36,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481877193] [2023-02-17 09:17:36,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:17:36,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 09:17:36,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:36,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 09:17:36,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-17 09:17:36,547 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) [2023-02-17 09:17:36,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:36,617 INFO L93 Difference]: Finished difference Result 91 states and 110 transitions. [2023-02-17 09:17:36,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 09:17:36,618 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 [2023-02-17 09:17:36,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:36,619 INFO L225 Difference]: With dead ends: 91 [2023-02-17 09:17:36,619 INFO L226 Difference]: Without dead ends: 89 [2023-02-17 09:17:36,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-17 09:17:36,620 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:36,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 45 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:17:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-02-17 09:17:36,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 77. [2023-02-17 09:17:36,630 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) [2023-02-17 09:17:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2023-02-17 09:17:36,631 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 14 [2023-02-17 09:17:36,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:36,632 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2023-02-17 09:17:36,632 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) [2023-02-17 09:17:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2023-02-17 09:17:36,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-17 09:17:36,633 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:36,633 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:17:36,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-17 09:17:36,838 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 [2023-02-17 09:17:36,839 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)] === [2023-02-17 09:17:36,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:36,840 INFO L85 PathProgramCache]: Analyzing trace with hash 421926545, now seen corresponding path program 1 times [2023-02-17 09:17:36,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:36,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990519706] [2023-02-17 09:17:36,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:36,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 09:17:36,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:36,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990519706] [2023-02-17 09:17:36,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990519706] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:17:36,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:17:36,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 09:17:36,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915305638] [2023-02-17 09:17:36,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:17:36,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 09:17:36,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:36,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 09:17:36,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-17 09:17:36,913 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) [2023-02-17 09:17:36,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:36,952 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2023-02-17 09:17:36,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 09:17:36,953 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 [2023-02-17 09:17:36,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:36,954 INFO L225 Difference]: With dead ends: 104 [2023-02-17 09:17:36,954 INFO L226 Difference]: Without dead ends: 47 [2023-02-17 09:17:36,955 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 [2023-02-17 09:17:36,959 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 [2023-02-17 09:17:36,960 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] [2023-02-17 09:17:36,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-17 09:17:36,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2023-02-17 09:17:36,970 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) [2023-02-17 09:17:36,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2023-02-17 09:17:36,971 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 17 [2023-02-17 09:17:36,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:36,972 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2023-02-17 09:17:36,972 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) [2023-02-17 09:17:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2023-02-17 09:17:36,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-17 09:17:36,973 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:36,973 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1] [2023-02-17 09:17:36,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-17 09:17:36,973 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)] === [2023-02-17 09:17:36,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:36,974 INFO L85 PathProgramCache]: Analyzing trace with hash -383140809, now seen corresponding path program 2 times [2023-02-17 09:17:36,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:36,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596286889] [2023-02-17 09:17:36,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:36,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:37,085 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:37,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:37,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596286889] [2023-02-17 09:17:37,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596286889] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:37,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808670243] [2023-02-17 09:17:37,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 09:17:37,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:37,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:37,089 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) [2023-02-17 09:17:37,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 09:17:37,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 09:17:37,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:17:37,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-17 09:17:37,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:37,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:17:37,241 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:37,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808670243] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:17:37,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:17:37,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-17 09:17:37,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726109203] [2023-02-17 09:17:37,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:17:37,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-17 09:17:37,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:37,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-17 09:17:37,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-17 09:17:37,245 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) [2023-02-17 09:17:37,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:37,343 INFO L93 Difference]: Finished difference Result 188 states and 227 transitions. [2023-02-17 09:17:37,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-17 09:17:37,346 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 [2023-02-17 09:17:37,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:37,349 INFO L225 Difference]: With dead ends: 188 [2023-02-17 09:17:37,349 INFO L226 Difference]: Without dead ends: 82 [2023-02-17 09:17:37,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-17 09:17:37,354 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 56 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-02-17 09:17:37,358 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] [2023-02-17 09:17:37,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-02-17 09:17:37,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-02-17 09:17:37,372 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) [2023-02-17 09:17:37,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 85 transitions. [2023-02-17 09:17:37,374 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 85 transitions. Word has length 32 [2023-02-17 09:17:37,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:37,375 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 85 transitions. [2023-02-17 09:17:37,375 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) [2023-02-17 09:17:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 85 transitions. [2023-02-17 09:17:37,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-02-17 09:17:37,378 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:37,378 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 1, 1, 1] [2023-02-17 09:17:37,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 09:17:37,586 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 [2023-02-17 09:17:37,587 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)] === [2023-02-17 09:17:37,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:37,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1154405789, now seen corresponding path program 3 times [2023-02-17 09:17:37,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:37,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164871064] [2023-02-17 09:17:37,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:37,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:37,811 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:37,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:37,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164871064] [2023-02-17 09:17:37,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164871064] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:37,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647992699] [2023-02-17 09:17:37,812 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 09:17:37,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:37,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:37,814 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) [2023-02-17 09:17:37,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 09:17:37,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-17 09:17:37,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:17:37,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-17 09:17:37,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:37,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:17:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:38,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647992699] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:17:38,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:17:38,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-17 09:17:38,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213183585] [2023-02-17 09:17:38,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:17:38,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-17 09:17:38,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:38,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-17 09:17:38,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-17 09:17:38,146 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) [2023-02-17 09:17:38,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:38,340 INFO L93 Difference]: Finished difference Result 404 states and 491 transitions. [2023-02-17 09:17:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-17 09:17:38,341 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 [2023-02-17 09:17:38,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:38,344 INFO L225 Difference]: With dead ends: 404 [2023-02-17 09:17:38,344 INFO L226 Difference]: Without dead ends: 154 [2023-02-17 09:17:38,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 114 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-17 09:17:38,348 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 [2023-02-17 09:17:38,349 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] [2023-02-17 09:17:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-02-17 09:17:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2023-02-17 09:17:38,368 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) [2023-02-17 09:17:38,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 157 transitions. [2023-02-17 09:17:38,370 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 157 transitions. Word has length 68 [2023-02-17 09:17:38,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:38,371 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 157 transitions. [2023-02-17 09:17:38,371 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) [2023-02-17 09:17:38,371 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 157 transitions. [2023-02-17 09:17:38,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-02-17 09:17:38,380 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:38,380 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 1, 1, 1] [2023-02-17 09:17:38,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-17 09:17:38,588 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 [2023-02-17 09:17:38,589 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)] === [2023-02-17 09:17:38,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:38,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1634457449, now seen corresponding path program 4 times [2023-02-17 09:17:38,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:38,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256620257] [2023-02-17 09:17:38,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:38,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:39,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:39,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256620257] [2023-02-17 09:17:39,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256620257] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:39,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366062249] [2023-02-17 09:17:39,171 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 09:17:39,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:39,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:39,172 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) [2023-02-17 09:17:39,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 09:17:39,257 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 09:17:39,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:17:39,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-17 09:17:39,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:39,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:39,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:17:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1518 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:40,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366062249] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:17:40,230 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:17:40,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-17 09:17:40,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307888993] [2023-02-17 09:17:40,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:17:40,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-17 09:17:40,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:40,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-17 09:17:40,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-17 09:17:40,233 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) [2023-02-17 09:17:40,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:40,648 INFO L93 Difference]: Finished difference Result 836 states and 1019 transitions. [2023-02-17 09:17:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-17 09:17:40,648 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 [2023-02-17 09:17:40,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:40,650 INFO L225 Difference]: With dead ends: 836 [2023-02-17 09:17:40,650 INFO L226 Difference]: Without dead ends: 298 [2023-02-17 09:17:40,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 234 SyntacticMatches, 22 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-17 09:17:40,652 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, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:40,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 478 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 09:17:40,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-02-17 09:17:40,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2023-02-17 09:17:40,662 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) [2023-02-17 09:17:40,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 301 transitions. [2023-02-17 09:17:40,663 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 301 transitions. Word has length 140 [2023-02-17 09:17:40,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:40,664 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 301 transitions. [2023-02-17 09:17:40,664 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) [2023-02-17 09:17:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 301 transitions. [2023-02-17 09:17:40,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-02-17 09:17:40,666 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:40,666 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 1, 1, 1] [2023-02-17 09:17:40,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-17 09:17:40,872 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 [2023-02-17 09:17:40,872 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)] === [2023-02-17 09:17:40,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:40,873 INFO L85 PathProgramCache]: Analyzing trace with hash -623175935, now seen corresponding path program 5 times [2023-02-17 09:17:40,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:40,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480491188] [2023-02-17 09:17:40,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:40,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:42,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:42,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480491188] [2023-02-17 09:17:42,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480491188] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:42,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196577097] [2023-02-17 09:17:42,767 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 09:17:42,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:42,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:42,770 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) [2023-02-17 09:17:42,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 09:17:42,899 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-17 09:17:42,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:17:42,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-17 09:17:42,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:43,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:17:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6486 backedges. 0 proven. 6486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:46,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196577097] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:17:46,263 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:17:46,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-17 09:17:46,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260851940] [2023-02-17 09:17:46,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:17:46,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-17 09:17:46,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:17:46,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-17 09:17:46,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-17 09:17:46,271 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) [2023-02-17 09:17:47,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:17:47,545 INFO L93 Difference]: Finished difference Result 1700 states and 2075 transitions. [2023-02-17 09:17:47,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-17 09:17:47,546 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 [2023-02-17 09:17:47,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:17:47,549 INFO L225 Difference]: With dead ends: 1700 [2023-02-17 09:17:47,549 INFO L226 Difference]: Without dead ends: 586 [2023-02-17 09:17:47,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 474 SyntacticMatches, 46 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-17 09:17:47,553 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 884 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-02-17 09:17:47,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1126 Invalid, 1116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-17 09:17:47,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-02-17 09:17:47,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2023-02-17 09:17:47,564 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) [2023-02-17 09:17:47,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 589 transitions. [2023-02-17 09:17:47,566 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 589 transitions. Word has length 284 [2023-02-17 09:17:47,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:17:47,567 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 589 transitions. [2023-02-17 09:17:47,568 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) [2023-02-17 09:17:47,568 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 589 transitions. [2023-02-17 09:17:47,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2023-02-17 09:17:47,578 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:17:47,579 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 1, 1, 1] [2023-02-17 09:17:47,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-17 09:17:47,787 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 [2023-02-17 09:17:47,788 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)] === [2023-02-17 09:17:47,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:17:47,788 INFO L85 PathProgramCache]: Analyzing trace with hash 534677041, now seen corresponding path program 6 times [2023-02-17 09:17:47,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:17:47,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368235541] [2023-02-17 09:17:47,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:17:47,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:17:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:17:54,090 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:54,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:17:54,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368235541] [2023-02-17 09:17:54,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368235541] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:17:54,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053544834] [2023-02-17 09:17:54,090 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 09:17:54,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:17:54,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:17:54,092 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) [2023-02-17 09:17:54,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-17 09:17:54,326 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-17 09:17:54,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:17:54,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-17 09:17:54,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:17:57,329 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:17:57,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:18:05,800 INFO L134 CoverageAnalysis]: Checked inductivity of 26790 backedges. 0 proven. 26790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:18:05,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053544834] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:18:05,801 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:18:05,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-17 09:18:05,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489834926] [2023-02-17 09:18:05,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:18:05,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-17 09:18:05,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:18:05,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-17 09:18:05,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-17 09:18:05,816 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) [2023-02-17 09:18:11,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:18:11,369 INFO L93 Difference]: Finished difference Result 3428 states and 4187 transitions. [2023-02-17 09:18:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-17 09:18:11,370 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 [2023-02-17 09:18:11,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:18:11,375 INFO L225 Difference]: With dead ends: 3428 [2023-02-17 09:18:11,375 INFO L226 Difference]: Without dead ends: 1162 [2023-02-17 09:18:11,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1238 GetRequests, 954 SyntacticMatches, 94 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4371 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-17 09:18:11,380 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1856 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 563 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.2s IncrementalHoareTripleChecker+Time [2023-02-17 09:18:11,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 2385 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-17 09:18:11,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2023-02-17 09:18:11,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2023-02-17 09:18:11,400 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) [2023-02-17 09:18:11,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1165 transitions. [2023-02-17 09:18:11,403 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1165 transitions. Word has length 572 [2023-02-17 09:18:11,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:18:11,403 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1165 transitions. [2023-02-17 09:18:11,404 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) [2023-02-17 09:18:11,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1165 transitions. [2023-02-17 09:18:11,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2023-02-17 09:18:11,436 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:18:11,436 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 191, 190, 1, 1, 1] [2023-02-17 09:18:11,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-17 09:18:11,643 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 [2023-02-17 09:18:11,644 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)] === [2023-02-17 09:18:11,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:18:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash 486089873, now seen corresponding path program 7 times [2023-02-17 09:18:11,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:18:11,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480017454] [2023-02-17 09:18:11,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:18:11,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:18:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:18:35,332 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:18:35,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:18:35,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480017454] [2023-02-17 09:18:35,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480017454] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:18:35,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141186861] [2023-02-17 09:18:35,333 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-17 09:18:35,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:18:35,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:18:35,341 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) [2023-02-17 09:18:35,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-17 09:18:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:18:35,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-17 09:18:35,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:18:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:18:46,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:19:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 108870 backedges. 0 proven. 108870 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:19:20,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141186861] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:19:20,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:19:20,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-17 09:19:20,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749652464] [2023-02-17 09:19:20,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:19:20,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-17 09:19:20,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:19:20,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-17 09:19:20,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-17 09:19:20,578 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) [2023-02-17 09:20:09,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:20:09,467 INFO L93 Difference]: Finished difference Result 6884 states and 8411 transitions. [2023-02-17 09:20:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-17 09:20:09,469 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 [2023-02-17 09:20:09,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:20:09,477 INFO L225 Difference]: With dead ends: 6884 [2023-02-17 09:20:09,478 INFO L226 Difference]: Without dead ends: 2314 [2023-02-17 09:20:09,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2486 GetRequests, 1914 SyntacticMatches, 190 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17955 ImplicationChecksByTransitivity, 55.5s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-17 09:20:09,490 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 4632 mSDsluCounter, 4700 mSDsCounter, 0 mSdLazyCounter, 3905 mSolverCounterSat, 1354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.7s IncrementalHoareTripleChecker+Time [2023-02-17 09:20:09,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4632 Valid, 5280 Invalid, 5259 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1354 Valid, 3905 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-02-17 09:20:09,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2023-02-17 09:20:09,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2314. [2023-02-17 09:20:09,529 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) [2023-02-17 09:20:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2317 transitions. [2023-02-17 09:20:09,533 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2317 transitions. Word has length 1148 [2023-02-17 09:20:09,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:20:09,535 INFO L495 AbstractCegarLoop]: Abstraction has 2314 states and 2317 transitions. [2023-02-17 09:20:09,536 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) [2023-02-17 09:20:09,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2317 transitions. [2023-02-17 09:20:09,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2301 [2023-02-17 09:20:09,569 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:20:09,569 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 383, 382, 1, 1, 1] [2023-02-17 09:20:09,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-17 09:20:09,785 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 [2023-02-17 09:20:09,785 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)] === [2023-02-17 09:20:09,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:20:09,786 INFO L85 PathProgramCache]: Analyzing trace with hash 930963793, now seen corresponding path program 8 times [2023-02-17 09:20:09,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:20:09,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151699628] [2023-02-17 09:20:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:20:09,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:20:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat