./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/easy2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5317dae 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/easy2-1.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 a611c66c14ab07fcb466e336a12a38ea58a5e4dd276e08fd17165595fe5eadfb --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:12:28,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:12:28,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:12:28,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:12:28,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:12:28,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:12:28,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:12:28,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:12:28,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:12:28,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:12:28,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:12:28,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:12:28,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:12:28,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:12:28,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:12:28,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:12:28,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:12:28,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:12:28,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:12:28,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:12:28,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:12:28,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:12:28,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:12:28,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:12:28,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:12:28,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:12:28,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:12:28,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:12:28,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:12:28,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:12:28,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:12:28,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:12:28,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:12:28,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:12:28,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:12:28,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:12:28,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:12:28,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:12:28,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:12:28,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:12:28,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:12:28,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-16 04:12:28,407 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:12:28,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:12:28,409 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:12:28,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:12:28,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 04:12:28,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 04:12:28,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:12:28,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:12:28,411 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:12:28,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:12:28,412 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:12:28,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:12:28,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:12:28,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 04:12:28,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 04:12:28,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 04:12:28,413 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-16 04:12:28,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:12:28,413 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:12:28,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 04:12:28,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:12:28,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:12:28,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 04:12:28,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:12:28,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:12:28,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 04:12:28,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 04:12:28,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:12:28,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 04:12:28,415 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 04:12:28,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 04:12:28,416 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 04:12:28,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 04:12:28,416 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 04:12:28,416 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a611c66c14ab07fcb466e336a12a38ea58a5e4dd276e08fd17165595fe5eadfb [2023-02-16 04:12:28,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:12:28,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:12:28,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:12:28,649 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:12:28,649 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:12:28,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/easy2-1.c [2023-02-16 04:12:29,824 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:12:29,995 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:12:29,995 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/easy2-1.c [2023-02-16 04:12:30,000 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f403d68/0383574b4d4f44508e8c57db76ab51e9/FLAG3fef5fa98 [2023-02-16 04:12:30,014 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5f403d68/0383574b4d4f44508e8c57db76ab51e9 [2023-02-16 04:12:30,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:12:30,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:12:30,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:12:30,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:12:30,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:12:30,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d800a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30, skipping insertion in model container [2023-02-16 04:12:30,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:12:30,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:12:30,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:12:30,155 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:12:30,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:12:30,174 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:12:30,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30 WrapperNode [2023-02-16 04:12:30,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:12:30,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:12:30,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:12:30,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:12:30,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,195 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-02-16 04:12:30,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:12:30,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:12:30,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:12:30,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:12:30,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,207 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:12:30,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:12:30,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:12:30,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:12:30,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (1/1) ... [2023-02-16 04:12:30,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:12:30,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:30,233 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) [2023-02-16 04:12:30,236 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 [2023-02-16 04:12:30,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:12:30,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:12:30,334 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:12:30,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:12:30,455 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:12:30,459 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:12:30,460 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-16 04:12:30,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:12:30 BoogieIcfgContainer [2023-02-16 04:12:30,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:12:30,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 04:12:30,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 04:12:30,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 04:12:30,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 04:12:30" (1/3) ... [2023-02-16 04:12:30,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7284e302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:12:30, skipping insertion in model container [2023-02-16 04:12:30,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:12:30" (2/3) ... [2023-02-16 04:12:30,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7284e302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:12:30, skipping insertion in model container [2023-02-16 04:12:30,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:12:30" (3/3) ... [2023-02-16 04:12:30,484 INFO L112 eAbstractionObserver]: Analyzing ICFG easy2-1.c [2023-02-16 04:12:30,498 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 04:12:30,499 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-16 04:12:30,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 04:12:30,538 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;@2a57fcb4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 04:12:30,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-16 04:12:30,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:30,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-16 04:12:30,547 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:30,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-16 04:12:30,548 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:30,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:30,552 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-02-16 04:12:30,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:30,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854331772] [2023-02-16 04:12:30,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:30,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:30,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:30,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:30,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854331772] [2023-02-16 04:12:30,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854331772] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:12:30,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:12:30,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:12:30,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892157126] [2023-02-16 04:12:30,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:12:30,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:12:30,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:30,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:12:30,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:12:30,779 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:30,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:30,813 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2023-02-16 04:12:30,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:12:30,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-02-16 04:12:30,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:30,822 INFO L225 Difference]: With dead ends: 23 [2023-02-16 04:12:30,823 INFO L226 Difference]: Without dead ends: 14 [2023-02-16 04:12:30,825 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 [2023-02-16 04:12:30,830 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:30,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 16 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:30,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-16 04:12:30,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-16 04:12:30,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:30,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-02-16 04:12:30,862 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2023-02-16 04:12:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:30,862 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-02-16 04:12:30,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:30,863 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-02-16 04:12:30,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-16 04:12:30,863 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:30,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-16 04:12:30,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 04:12:30,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:30,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:30,868 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2023-02-16 04:12:30,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:30,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32499334] [2023-02-16 04:12:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:30,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:30,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:30,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:30,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32499334] [2023-02-16 04:12:30,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32499334] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:12:30,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:12:30,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:12:30,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084295175] [2023-02-16 04:12:30,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:12:30,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:12:30,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:30,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:12:30,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:12:30,921 INFO L87 Difference]: Start difference. First operand 14 states and 14 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) [2023-02-16 04:12:30,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:30,946 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-02-16 04:12:30,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:12:30,946 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 [2023-02-16 04:12:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:30,947 INFO L225 Difference]: With dead ends: 18 [2023-02-16 04:12:30,947 INFO L226 Difference]: Without dead ends: 17 [2023-02-16 04:12:30,948 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 [2023-02-16 04:12:30,949 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:30,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:30,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-16 04:12:30,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-16 04:12:30,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:30,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-02-16 04:12:30,957 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 5 [2023-02-16 04:12:30,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:30,958 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-02-16 04:12:30,958 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) [2023-02-16 04:12:30,958 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-02-16 04:12:30,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-16 04:12:30,959 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:30,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-16 04:12:30,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 04:12:30,960 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:30,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2023-02-16 04:12:30,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:30,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302952044] [2023-02-16 04:12:30,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:30,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:31,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:31,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:31,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302952044] [2023-02-16 04:12:31,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302952044] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:12:31,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:12:31,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:12:31,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305968580] [2023-02-16 04:12:31,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:12:31,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:12:31,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:31,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:12:31,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:12:31,021 INFO L87 Difference]: Start difference. First operand 17 states and 17 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) [2023-02-16 04:12:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:31,042 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-02-16 04:12:31,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:12:31,043 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 [2023-02-16 04:12:31,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:31,045 INFO L225 Difference]: With dead ends: 20 [2023-02-16 04:12:31,045 INFO L226 Difference]: Without dead ends: 19 [2023-02-16 04:12:31,046 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 [2023-02-16 04:12:31,047 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:31,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:31,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-16 04:12:31,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2023-02-16 04:12:31,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-16 04:12:31,056 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2023-02-16 04:12:31,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:31,056 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-16 04:12:31,057 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) [2023-02-16 04:12:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-16 04:12:31,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-16 04:12:31,057 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:31,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:12:31,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-16 04:12:31,058 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:31,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2023-02-16 04:12:31,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:31,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28439641] [2023-02-16 04:12:31,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:31,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:31,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:31,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:31,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28439641] [2023-02-16 04:12:31,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28439641] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:12:31,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:12:31,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:12:31,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546039419] [2023-02-16 04:12:31,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:12:31,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:12:31,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:31,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:12:31,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:12:31,111 INFO L87 Difference]: Start difference. First operand 18 states and 18 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) [2023-02-16 04:12:31,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:31,128 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-02-16 04:12:31,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:12:31,128 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 [2023-02-16 04:12:31,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:31,129 INFO L225 Difference]: With dead ends: 18 [2023-02-16 04:12:31,129 INFO L226 Difference]: Without dead ends: 17 [2023-02-16 04:12:31,129 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 [2023-02-16 04:12:31,130 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:31,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:31,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-16 04:12:31,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-16 04:12:31,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-02-16 04:12:31,135 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2023-02-16 04:12:31,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:31,136 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-02-16 04:12:31,136 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) [2023-02-16 04:12:31,136 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-02-16 04:12:31,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-16 04:12:31,136 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:31,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:12:31,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 04:12:31,137 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:31,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:31,138 INFO L85 PathProgramCache]: Analyzing trace with hash 294943144, now seen corresponding path program 1 times [2023-02-16 04:12:31,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:31,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463262538] [2023-02-16 04:12:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:31,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:31,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:31,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:31,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463262538] [2023-02-16 04:12:31,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463262538] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:12:31,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:12:31,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:12:31,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829735163] [2023-02-16 04:12:31,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:12:31,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:12:31,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:31,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:12:31,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:12:31,166 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:31,173 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-02-16 04:12:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:12:31,174 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 [2023-02-16 04:12:31,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:31,175 INFO L225 Difference]: With dead ends: 17 [2023-02-16 04:12:31,175 INFO L226 Difference]: Without dead ends: 16 [2023-02-16 04:12:31,175 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 [2023-02-16 04:12:31,176 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:31,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:31,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-16 04:12:31,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-16 04:12:31,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 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) [2023-02-16 04:12:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-16 04:12:31,180 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 8 [2023-02-16 04:12:31,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:31,180 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-16 04:12:31,181 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) [2023-02-16 04:12:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-16 04:12:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-16 04:12:31,181 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:31,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:12:31,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-16 04:12:31,182 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:31,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:31,183 INFO L85 PathProgramCache]: Analyzing trace with hash 553302925, now seen corresponding path program 1 times [2023-02-16 04:12:31,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:31,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745816909] [2023-02-16 04:12:31,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:31,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:31,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:31,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745816909] [2023-02-16 04:12:31,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745816909] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:12:31,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:12:31,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:12:31,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544611292] [2023-02-16 04:12:31,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:12:31,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:12:31,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:31,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:12:31,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:12:31,212 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:31,218 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-16 04:12:31,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:12:31,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-02-16 04:12:31,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:31,219 INFO L225 Difference]: With dead ends: 16 [2023-02-16 04:12:31,220 INFO L226 Difference]: Without dead ends: 15 [2023-02-16 04:12:31,220 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 [2023-02-16 04:12:31,221 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:31,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:31,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-16 04:12:31,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-16 04:12:31,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-16 04:12:31,225 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2023-02-16 04:12:31,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:31,225 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-16 04:12:31,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,225 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-16 04:12:31,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 04:12:31,226 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:31,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:12:31,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-16 04:12:31,227 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:31,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:31,227 INFO L85 PathProgramCache]: Analyzing trace with hash -637002594, now seen corresponding path program 1 times [2023-02-16 04:12:31,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:31,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638721823] [2023-02-16 04:12:31,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:31,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:31,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:31,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:31,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638721823] [2023-02-16 04:12:31,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638721823] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:31,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125356885] [2023-02-16 04:12:31,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:31,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:31,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:31,268 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) [2023-02-16 04:12:31,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 04:12:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:31,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:12:31,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:31,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:31,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:12:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:31,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125356885] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:12:31,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:12:31,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-16 04:12:31,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872052916] [2023-02-16 04:12:31,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:12:31,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 04:12:31,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:31,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 04:12:31,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:12:31,390 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:31,410 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-02-16 04:12:31,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:12:31,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-16 04:12:31,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:31,411 INFO L225 Difference]: With dead ends: 38 [2023-02-16 04:12:31,412 INFO L226 Difference]: Without dead ends: 37 [2023-02-16 04:12:31,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:12:31,413 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:31,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 35 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:31,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-16 04:12:31,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2023-02-16 04:12:31,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.121212121212121) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2023-02-16 04:12:31,419 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 12 [2023-02-16 04:12:31,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:31,419 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2023-02-16 04:12:31,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,420 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2023-02-16 04:12:31,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-16 04:12:31,420 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:31,420 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:12:31,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 04:12:31,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:31,633 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:31,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1727756113, now seen corresponding path program 1 times [2023-02-16 04:12:31,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:31,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915408800] [2023-02-16 04:12:31,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:31,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:31,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:31,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915408800] [2023-02-16 04:12:31,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915408800] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:31,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453973934] [2023-02-16 04:12:31,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:31,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:31,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:31,678 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) [2023-02-16 04:12:31,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 04:12:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:31,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:12:31,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:31,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:12:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:31,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453973934] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:12:31,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:12:31,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-16 04:12:31,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989487706] [2023-02-16 04:12:31,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:12:31,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 04:12:31,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:31,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 04:12:31,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:12:31,759 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:31,776 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2023-02-16 04:12:31,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:12:31,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-16 04:12:31,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:31,777 INFO L225 Difference]: With dead ends: 37 [2023-02-16 04:12:31,777 INFO L226 Difference]: Without dead ends: 36 [2023-02-16 04:12:31,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:12:31,778 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:31,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:31,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-16 04:12:31,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-02-16 04:12:31,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2023-02-16 04:12:31,784 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 13 [2023-02-16 04:12:31,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:31,784 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2023-02-16 04:12:31,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:31,785 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2023-02-16 04:12:31,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-16 04:12:31,785 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:31,786 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1] [2023-02-16 04:12:31,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 04:12:31,991 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,SelfDestructingSolverStorable7 [2023-02-16 04:12:31,991 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:31,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:31,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1634791159, now seen corresponding path program 2 times [2023-02-16 04:12:31,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:31,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855607179] [2023-02-16 04:12:31,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:31,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:32,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:32,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855607179] [2023-02-16 04:12:32,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855607179] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:32,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095749065] [2023-02-16 04:12:32,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:12:32,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:32,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:32,170 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) [2023-02-16 04:12:32,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 04:12:32,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:12:32,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:12:32,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 04:12:32,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:32,252 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:32,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:12:32,334 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:32,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095749065] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:12:32,335 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:12:32,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-16 04:12:32,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755426983] [2023-02-16 04:12:32,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:12:32,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-16 04:12:32,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:32,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-16 04:12:32,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-16 04:12:32,337 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:32,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:32,371 INFO L93 Difference]: Finished difference Result 83 states and 88 transitions. [2023-02-16 04:12:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-16 04:12:32,371 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2023-02-16 04:12:32,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:32,373 INFO L225 Difference]: With dead ends: 83 [2023-02-16 04:12:32,373 INFO L226 Difference]: Without dead ends: 82 [2023-02-16 04:12:32,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-16 04:12:32,385 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:32,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 69 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:32,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-02-16 04:12:32,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2023-02-16 04:12:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.0933333333333333) internal successors, (82), 76 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:32,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2023-02-16 04:12:32,394 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 33 [2023-02-16 04:12:32,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:32,394 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2023-02-16 04:12:32,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:32,395 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2023-02-16 04:12:32,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-16 04:12:32,395 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:32,408 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2023-02-16 04:12:32,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 04:12:32,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:32,615 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:32,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:32,616 INFO L85 PathProgramCache]: Analyzing trace with hash 861081670, now seen corresponding path program 2 times [2023-02-16 04:12:32,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:32,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221050170] [2023-02-16 04:12:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:32,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:32,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:32,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221050170] [2023-02-16 04:12:32,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221050170] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:32,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873284370] [2023-02-16 04:12:32,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:12:32,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:32,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:32,738 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) [2023-02-16 04:12:32,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 04:12:32,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:12:32,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:12:32,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 04:12:32,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:32,854 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:32,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:12:32,958 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:32,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873284370] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:12:32,958 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:12:32,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-16 04:12:32,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288818113] [2023-02-16 04:12:32,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:12:32,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-16 04:12:32,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:32,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-16 04:12:32,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-16 04:12:32,964 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:33,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:33,019 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2023-02-16 04:12:33,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-16 04:12:33,019 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-02-16 04:12:33,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:33,023 INFO L225 Difference]: With dead ends: 79 [2023-02-16 04:12:33,024 INFO L226 Difference]: Without dead ends: 78 [2023-02-16 04:12:33,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-16 04:12:33,031 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:33,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 67 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:33,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-02-16 04:12:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-02-16 04:12:33,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 1.0263157894736843) internal successors, (78), 77 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:33,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2023-02-16 04:12:33,048 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 34 [2023-02-16 04:12:33,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:33,049 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2023-02-16 04:12:33,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:33,049 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2023-02-16 04:12:33,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-02-16 04:12:33,051 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:33,051 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1] [2023-02-16 04:12:33,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-16 04:12:33,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:33,256 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:33,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:33,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1501766615, now seen corresponding path program 3 times [2023-02-16 04:12:33,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:33,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520235531] [2023-02-16 04:12:33,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:33,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:33,524 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:33,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:33,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520235531] [2023-02-16 04:12:33,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520235531] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:33,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913484267] [2023-02-16 04:12:33,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 04:12:33,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:33,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:33,526 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) [2023-02-16 04:12:33,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 04:12:33,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-16 04:12:33,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:12:33,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-16 04:12:33,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:33,700 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:33,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:12:33,958 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:33,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913484267] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:12:33,959 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:12:33,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-16 04:12:33,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483653516] [2023-02-16 04:12:33,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:12:33,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-16 04:12:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:33,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-16 04:12:33,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-16 04:12:33,962 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand has 24 states, 23 states have (on average 6.478260869565218) internal successors, (149), 24 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:34,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:34,039 INFO L93 Difference]: Finished difference Result 173 states and 184 transitions. [2023-02-16 04:12:34,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-16 04:12:34,039 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.478260869565218) internal successors, (149), 24 states have internal predecessors, (149), 0 states have call successors, (0), 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 75 [2023-02-16 04:12:34,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:34,040 INFO L225 Difference]: With dead ends: 173 [2023-02-16 04:12:34,041 INFO L226 Difference]: Without dead ends: 172 [2023-02-16 04:12:34,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-16 04:12:34,042 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:34,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 139 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:34,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-02-16 04:12:34,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 161. [2023-02-16 04:12:34,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 159 states have (on average 1.0817610062893082) internal successors, (172), 160 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:34,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 172 transitions. [2023-02-16 04:12:34,053 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 172 transitions. Word has length 75 [2023-02-16 04:12:34,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:34,053 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 172 transitions. [2023-02-16 04:12:34,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.478260869565218) internal successors, (149), 24 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 172 transitions. [2023-02-16 04:12:34,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-02-16 04:12:34,055 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:34,056 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1] [2023-02-16 04:12:34,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 04:12:34,262 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,SelfDestructingSolverStorable10 [2023-02-16 04:12:34,262 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:34,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:34,262 INFO L85 PathProgramCache]: Analyzing trace with hash 689875238, now seen corresponding path program 3 times [2023-02-16 04:12:34,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:34,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349173865] [2023-02-16 04:12:34,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:34,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:34,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:34,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349173865] [2023-02-16 04:12:34,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349173865] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:34,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371710897] [2023-02-16 04:12:34,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 04:12:34,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:34,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:34,442 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) [2023-02-16 04:12:34,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 04:12:34,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-16 04:12:34,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:12:34,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-16 04:12:34,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:34,588 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:34,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:12:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:34,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371710897] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:12:34,836 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:12:34,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-16 04:12:34,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108977227] [2023-02-16 04:12:34,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:12:34,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-16 04:12:34,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:34,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-16 04:12:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-16 04:12:34,839 INFO L87 Difference]: Start difference. First operand 161 states and 172 transitions. Second operand has 24 states, 23 states have (on average 6.565217391304348) internal successors, (151), 24 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:34,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:34,905 INFO L93 Difference]: Finished difference Result 163 states and 174 transitions. [2023-02-16 04:12:34,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-16 04:12:34,906 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.565217391304348) internal successors, (151), 24 states have internal predecessors, (151), 0 states have call successors, (0), 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 76 [2023-02-16 04:12:34,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:34,908 INFO L225 Difference]: With dead ends: 163 [2023-02-16 04:12:34,908 INFO L226 Difference]: Without dead ends: 162 [2023-02-16 04:12:34,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-16 04:12:34,909 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:34,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 131 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:12:34,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-02-16 04:12:34,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-02-16 04:12:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.0125) internal successors, (162), 161 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:34,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2023-02-16 04:12:34,934 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 76 [2023-02-16 04:12:34,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:34,935 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2023-02-16 04:12:34,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.565217391304348) internal successors, (151), 24 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:34,936 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2023-02-16 04:12:34,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-02-16 04:12:34,941 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:34,941 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1] [2023-02-16 04:12:34,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 04:12:35,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:35,147 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:35,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:35,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1627044457, now seen corresponding path program 4 times [2023-02-16 04:12:35,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:35,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661334794] [2023-02-16 04:12:35,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:35,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:35,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:35,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:35,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661334794] [2023-02-16 04:12:35,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661334794] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:35,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553149917] [2023-02-16 04:12:35,737 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 04:12:35,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:35,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:35,740 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) [2023-02-16 04:12:35,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 04:12:35,809 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 04:12:35,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:12:35,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-16 04:12:35,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:35,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:35,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:12:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:36,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553149917] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:12:36,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:12:36,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-16 04:12:36,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829896742] [2023-02-16 04:12:36,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:12:36,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-16 04:12:36,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:36,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-16 04:12:36,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-16 04:12:36,771 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand has 48 states, 47 states have (on average 6.74468085106383) internal successors, (317), 48 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:36,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:36,919 INFO L93 Difference]: Finished difference Result 353 states and 376 transitions. [2023-02-16 04:12:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-16 04:12:36,920 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.74468085106383) internal successors, (317), 48 states have internal predecessors, (317), 0 states have call successors, (0), 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 159 [2023-02-16 04:12:36,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:36,922 INFO L225 Difference]: With dead ends: 353 [2023-02-16 04:12:36,922 INFO L226 Difference]: Without dead ends: 352 [2023-02-16 04:12:36,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-16 04:12:36,923 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 68 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:36,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 273 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:12:36,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-02-16 04:12:36,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 329. [2023-02-16 04:12:36,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 327 states have (on average 1.0764525993883791) internal successors, (352), 328 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:36,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 352 transitions. [2023-02-16 04:12:36,934 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 352 transitions. Word has length 159 [2023-02-16 04:12:36,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:36,934 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 352 transitions. [2023-02-16 04:12:36,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.74468085106383) internal successors, (317), 48 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:36,934 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 352 transitions. [2023-02-16 04:12:36,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-02-16 04:12:36,936 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:36,936 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1] [2023-02-16 04:12:36,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-16 04:12:37,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:37,142 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:37,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1101229338, now seen corresponding path program 4 times [2023-02-16 04:12:37,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:37,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597723330] [2023-02-16 04:12:37,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:37,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:37,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:37,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:37,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597723330] [2023-02-16 04:12:37,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597723330] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:37,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492982296] [2023-02-16 04:12:37,829 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 04:12:37,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:37,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:37,831 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:12:37,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 04:12:37,909 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 04:12:37,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:12:37,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-16 04:12:37,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:38,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:12:38,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:38,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492982296] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:12:38,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:12:38,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-16 04:12:38,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822019066] [2023-02-16 04:12:38,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:12:38,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-16 04:12:38,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:38,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-16 04:12:38,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-16 04:12:38,970 INFO L87 Difference]: Start difference. First operand 329 states and 352 transitions. Second operand has 48 states, 47 states have (on average 6.787234042553192) internal successors, (319), 48 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:39,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:39,110 INFO L93 Difference]: Finished difference Result 331 states and 354 transitions. [2023-02-16 04:12:39,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-16 04:12:39,111 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.787234042553192) internal successors, (319), 48 states have internal predecessors, (319), 0 states have call successors, (0), 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 160 [2023-02-16 04:12:39,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:39,113 INFO L225 Difference]: With dead ends: 331 [2023-02-16 04:12:39,113 INFO L226 Difference]: Without dead ends: 330 [2023-02-16 04:12:39,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-16 04:12:39,114 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:39,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 249 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:12:39,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-02-16 04:12:39,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2023-02-16 04:12:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 328 states have (on average 1.0060975609756098) internal successors, (330), 329 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 330 transitions. [2023-02-16 04:12:39,125 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 330 transitions. Word has length 160 [2023-02-16 04:12:39,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:39,125 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 330 transitions. [2023-02-16 04:12:39,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.787234042553192) internal successors, (319), 48 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:39,126 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 330 transitions. [2023-02-16 04:12:39,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-02-16 04:12:39,133 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:39,133 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 1, 1, 1] [2023-02-16 04:12:39,144 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-16 04:12:39,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-16 04:12:39,345 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:39,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:39,345 INFO L85 PathProgramCache]: Analyzing trace with hash 62363369, now seen corresponding path program 5 times [2023-02-16 04:12:39,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:39,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318468286] [2023-02-16 04:12:39,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:39,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:41,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:41,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318468286] [2023-02-16 04:12:41,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318468286] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:41,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946933228] [2023-02-16 04:12:41,357 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 04:12:41,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:41,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:41,359 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:12:41,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 04:12:41,516 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-16 04:12:41,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:12:41,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-16 04:12:41,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:41,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:41,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:12:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:44,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946933228] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:12:44,554 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:12:44,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-16 04:12:44,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296666938] [2023-02-16 04:12:44,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:12:44,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-16 04:12:44,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:44,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-16 04:12:44,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-16 04:12:44,562 INFO L87 Difference]: Start difference. First operand 330 states and 330 transitions. Second operand has 96 states, 95 states have (on average 6.873684210526315) internal successors, (653), 96 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:44,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:44,923 INFO L93 Difference]: Finished difference Result 713 states and 760 transitions. [2023-02-16 04:12:44,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-16 04:12:44,925 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.873684210526315) internal successors, (653), 96 states have internal predecessors, (653), 0 states have call successors, (0), 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 327 [2023-02-16 04:12:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:44,927 INFO L225 Difference]: With dead ends: 713 [2023-02-16 04:12:44,927 INFO L226 Difference]: Without dead ends: 712 [2023-02-16 04:12:44,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-16 04:12:44,930 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 148 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:44,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 538 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:12:44,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-02-16 04:12:44,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 665. [2023-02-16 04:12:44,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 663 states have (on average 1.0739064856711915) internal successors, (712), 664 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:44,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 712 transitions. [2023-02-16 04:12:44,947 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 712 transitions. Word has length 327 [2023-02-16 04:12:44,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:44,948 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 712 transitions. [2023-02-16 04:12:44,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.873684210526315) internal successors, (653), 96 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:44,949 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 712 transitions. [2023-02-16 04:12:44,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-02-16 04:12:44,952 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:44,952 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1] [2023-02-16 04:12:44,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-02-16 04:12:45,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-16 04:12:45,159 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:45,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:45,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1933264486, now seen corresponding path program 5 times [2023-02-16 04:12:45,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:45,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929365701] [2023-02-16 04:12:45,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:45,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:46,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:46,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929365701] [2023-02-16 04:12:46,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929365701] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:46,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910156756] [2023-02-16 04:12:46,989 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 04:12:46,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:46,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:46,990 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:12:46,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 04:12:47,122 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-16 04:12:47,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:12:47,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-16 04:12:47,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:47,529 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:47,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:12:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:49,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910156756] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:12:49,994 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:12:49,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-16 04:12:49,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407993532] [2023-02-16 04:12:49,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:12:49,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-16 04:12:49,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:12:49,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-16 04:12:50,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-16 04:12:50,000 INFO L87 Difference]: Start difference. First operand 665 states and 712 transitions. Second operand has 96 states, 95 states have (on average 6.894736842105263) internal successors, (655), 96 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:50,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:12:50,311 INFO L93 Difference]: Finished difference Result 667 states and 714 transitions. [2023-02-16 04:12:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-16 04:12:50,312 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.894736842105263) internal successors, (655), 96 states have internal predecessors, (655), 0 states have call successors, (0), 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 328 [2023-02-16 04:12:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:12:50,314 INFO L225 Difference]: With dead ends: 667 [2023-02-16 04:12:50,315 INFO L226 Difference]: Without dead ends: 666 [2023-02-16 04:12:50,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-16 04:12:50,317 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:12:50,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 487 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:12:50,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2023-02-16 04:12:50,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2023-02-16 04:12:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 664 states have (on average 1.0030120481927711) internal successors, (666), 665 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:50,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 666 transitions. [2023-02-16 04:12:50,333 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 666 transitions. Word has length 328 [2023-02-16 04:12:50,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:12:50,334 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 666 transitions. [2023-02-16 04:12:50,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.894736842105263) internal successors, (655), 96 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:12:50,334 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 666 transitions. [2023-02-16 04:12:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-02-16 04:12:50,345 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:12:50,345 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 1, 1, 1] [2023-02-16 04:12:50,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-16 04:12:50,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-16 04:12:50,551 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:12:50,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:12:50,552 INFO L85 PathProgramCache]: Analyzing trace with hash 636866537, now seen corresponding path program 6 times [2023-02-16 04:12:50,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:12:50,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948714059] [2023-02-16 04:12:50,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:12:50,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:12:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:12:57,087 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:57,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:12:57,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948714059] [2023-02-16 04:12:57,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948714059] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:12:57,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225058710] [2023-02-16 04:12:57,088 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-16 04:12:57,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:12:57,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:12:57,097 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:12:57,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-16 04:12:57,371 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-16 04:12:57,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:12:57,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-16 04:12:57,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:12:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:12:58,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:13:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:13:06,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225058710] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:13:06,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:13:06,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-16 04:13:06,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778712121] [2023-02-16 04:13:06,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:13:06,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-16 04:13:06,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:13:06,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-16 04:13:06,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-16 04:13:06,930 INFO L87 Difference]: Start difference. First operand 666 states and 666 transitions. Second operand has 192 states, 191 states have (on average 6.93717277486911) internal successors, (1325), 192 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:13:08,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:13:08,544 INFO L93 Difference]: Finished difference Result 1433 states and 1528 transitions. [2023-02-16 04:13:08,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-16 04:13:08,545 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.93717277486911) internal successors, (1325), 192 states have internal predecessors, (1325), 0 states have call successors, (0), 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 663 [2023-02-16 04:13:08,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:13:08,550 INFO L225 Difference]: With dead ends: 1433 [2023-02-16 04:13:08,550 INFO L226 Difference]: Without dead ends: 1432 [2023-02-16 04:13:08,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1420 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-16 04:13:08,553 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 385 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 04:13:08,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1064 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 04:13:08,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2023-02-16 04:13:08,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1337. [2023-02-16 04:13:08,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1335 states have (on average 1.0726591760299626) internal successors, (1432), 1336 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:13:08,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1432 transitions. [2023-02-16 04:13:08,581 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1432 transitions. Word has length 663 [2023-02-16 04:13:08,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:13:08,582 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1432 transitions. [2023-02-16 04:13:08,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.93717277486911) internal successors, (1325), 192 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:13:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1432 transitions. [2023-02-16 04:13:08,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2023-02-16 04:13:08,595 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:13:08,595 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1, 1] [2023-02-16 04:13:08,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-16 04:13:08,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-16 04:13:08,805 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:13:08,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:13:08,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1731973786, now seen corresponding path program 6 times [2023-02-16 04:13:08,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:13:08,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650394013] [2023-02-16 04:13:08,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:13:08,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:13:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:13:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:13:14,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:13:14,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650394013] [2023-02-16 04:13:14,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650394013] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:13:14,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405069704] [2023-02-16 04:13:14,476 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-16 04:13:14,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:13:14,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:13:14,477 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:13:14,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-16 04:13:14,726 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-16 04:13:14,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:13:14,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-16 04:13:14,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:13:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:13:15,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:13:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:13:24,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405069704] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:13:24,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:13:24,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-16 04:13:24,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231736714] [2023-02-16 04:13:24,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:13:24,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-16 04:13:24,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:13:24,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-16 04:13:24,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-16 04:13:24,585 INFO L87 Difference]: Start difference. First operand 1337 states and 1432 transitions. Second operand has 192 states, 191 states have (on average 6.947643979057592) internal successors, (1327), 192 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:13:25,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:13:25,733 INFO L93 Difference]: Finished difference Result 1339 states and 1434 transitions. [2023-02-16 04:13:25,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-16 04:13:25,734 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.947643979057592) internal successors, (1327), 192 states have internal predecessors, (1327), 0 states have call successors, (0), 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 664 [2023-02-16 04:13:25,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:13:25,739 INFO L225 Difference]: With dead ends: 1339 [2023-02-16 04:13:25,739 INFO L226 Difference]: Without dead ends: 1338 [2023-02-16 04:13:25,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1422 GetRequests, 1232 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-16 04:13:25,742 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 04:13:25,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 967 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 04:13:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2023-02-16 04:13:25,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1338. [2023-02-16 04:13:25,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1336 states have (on average 1.001497005988024) internal successors, (1338), 1337 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:13:25,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1338 transitions. [2023-02-16 04:13:25,771 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1338 transitions. Word has length 664 [2023-02-16 04:13:25,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:13:25,772 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 1338 transitions. [2023-02-16 04:13:25,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.947643979057592) internal successors, (1327), 192 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:13:25,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1338 transitions. [2023-02-16 04:13:25,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1336 [2023-02-16 04:13:25,787 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:13:25,787 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 1, 1, 1] [2023-02-16 04:13:25,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-16 04:13:25,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-16 04:13:25,994 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:13:25,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:13:25,995 INFO L85 PathProgramCache]: Analyzing trace with hash -880524823, now seen corresponding path program 7 times [2023-02-16 04:13:25,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:13:25,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458883734] [2023-02-16 04:13:25,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:13:25,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:13:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:13:51,353 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:13:51,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:13:51,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458883734] [2023-02-16 04:13:51,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458883734] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:13:51,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034775147] [2023-02-16 04:13:51,354 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-16 04:13:51,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:13:51,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:13:51,356 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:13:51,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-16 04:13:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:13:51,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 2482 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-16 04:13:51,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:13:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:13:52,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:14:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:14:27,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034775147] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:14:27,335 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:14:27,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-16 04:14:27,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160204104] [2023-02-16 04:14:27,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:14:27,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-16 04:14:27,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:14:27,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-16 04:14:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-16 04:14:27,365 INFO L87 Difference]: Start difference. First operand 1338 states and 1338 transitions. Second operand has 384 states, 383 states have (on average 6.968668407310705) internal successors, (2669), 384 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:14:39,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:14:39,295 INFO L93 Difference]: Finished difference Result 2873 states and 3064 transitions. [2023-02-16 04:14:39,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-16 04:14:39,297 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.968668407310705) internal successors, (2669), 384 states have internal predecessors, (2669), 0 states have call successors, (0), 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 1335 [2023-02-16 04:14:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:14:39,306 INFO L225 Difference]: With dead ends: 2873 [2023-02-16 04:14:39,307 INFO L226 Difference]: Without dead ends: 2872 [2023-02-16 04:14:39,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2860 GetRequests, 2478 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-16 04:14:39,314 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 864 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-16 04:14:39,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 2125 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-16 04:14:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2023-02-16 04:14:39,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2681. [2023-02-16 04:14:39,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2679 states have (on average 1.0720418066442703) internal successors, (2872), 2680 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:14:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 2872 transitions. [2023-02-16 04:14:39,366 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 2872 transitions. Word has length 1335 [2023-02-16 04:14:39,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:14:39,367 INFO L495 AbstractCegarLoop]: Abstraction has 2681 states and 2872 transitions. [2023-02-16 04:14:39,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.968668407310705) internal successors, (2669), 384 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:14:39,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 2872 transitions. [2023-02-16 04:14:39,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2023-02-16 04:14:39,381 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:14:39,382 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 190, 190, 1, 1, 1] [2023-02-16 04:14:39,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-16 04:14:39,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:14:39,591 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:14:39,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:14:39,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1526465690, now seen corresponding path program 7 times [2023-02-16 04:14:39,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:14:39,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195316347] [2023-02-16 04:14:39,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:14:39,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:14:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:15:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:15:05,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:15:05,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195316347] [2023-02-16 04:15:05,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195316347] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:15:05,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137756682] [2023-02-16 04:15:05,455 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-16 04:15:05,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:15:05,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:15:05,457 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:15:05,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-16 04:15:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:15:05,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-16 04:15:05,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:15:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:15:07,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:15:42,233 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:15:42,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137756682] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:15:42,233 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:15:42,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-16 04:15:42,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992511325] [2023-02-16 04:15:42,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:15:42,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-16 04:15:42,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:15:42,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-16 04:15:42,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-16 04:15:42,256 INFO L87 Difference]: Start difference. First operand 2681 states and 2872 transitions. Second operand has 384 states, 383 states have (on average 6.973890339425587) internal successors, (2671), 384 states have internal predecessors, (2671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:15:48,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:15:48,940 INFO L93 Difference]: Finished difference Result 2683 states and 2874 transitions. [2023-02-16 04:15:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-16 04:15:48,942 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.973890339425587) internal successors, (2671), 384 states have internal predecessors, (2671), 0 states have call successors, (0), 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 1336 [2023-02-16 04:15:48,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:15:48,950 INFO L225 Difference]: With dead ends: 2683 [2023-02-16 04:15:48,950 INFO L226 Difference]: Without dead ends: 2682 [2023-02-16 04:15:48,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2862 GetRequests, 2480 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 45.2s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-16 04:15:48,958 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-16 04:15:48,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1923 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-16 04:15:48,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2023-02-16 04:15:49,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2682. [2023-02-16 04:15:49,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 2680 states have (on average 1.0007462686567163) internal successors, (2682), 2681 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:15:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 2682 transitions. [2023-02-16 04:15:49,074 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 2682 transitions. Word has length 1336 [2023-02-16 04:15:49,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:15:49,075 INFO L495 AbstractCegarLoop]: Abstraction has 2682 states and 2682 transitions. [2023-02-16 04:15:49,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.973890339425587) internal successors, (2671), 384 states have internal predecessors, (2671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:15:49,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 2682 transitions. [2023-02-16 04:15:49,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2680 [2023-02-16 04:15:49,122 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:15:49,123 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 382, 382, 382, 382, 382, 1, 1, 1] [2023-02-16 04:15:49,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-16 04:15:49,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:15:49,325 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:15:49,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:15:49,326 INFO L85 PathProgramCache]: Analyzing trace with hash 183051753, now seen corresponding path program 8 times [2023-02-16 04:15:49,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:15:49,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001729956] [2023-02-16 04:15:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:15:49,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:15:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat