./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a31fd051 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 366d45071e2a444aa552f231e24508af3eb704e415c6b738128a0398e54b53a7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:49:46,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:49:46,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:49:46,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:49:46,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:49:46,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:49:46,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:49:46,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:49:46,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:49:46,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:49:46,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:49:46,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:49:46,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:49:46,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:49:46,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:49:46,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:49:46,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:49:46,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:49:46,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:49:46,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:49:46,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:49:46,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:49:46,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:49:46,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:49:46,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:49:46,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:49:46,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:49:46,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:49:46,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:49:46,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:49:46,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:49:46,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:49:46,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:49:46,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:49:46,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:49:46,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:49:46,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:49:46,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:49:46,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:49:46,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:49:46,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:49:46,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 13:49:46,453 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:49:46,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:49:46,453 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:49:46,453 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:49:46,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:49:46,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:49:46,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:49:46,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:49:46,455 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:49:46,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:49:46,455 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 13:49:46,456 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:49:46,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:49:46,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 13:49:46,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:49:46,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 13:49:46,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:49:46,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 13:49:46,457 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 13:49:46,457 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 13:49:46,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 13:49:46,457 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:49:46,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 13:49:46,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:49:46,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:49:46,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:49:46,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:49:46,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:49:46,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:49:46,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 13:49:46,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 13:49:46,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 13:49:46,459 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:49:46,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 13:49:46,460 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:49:46,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:49:46,460 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:49:46,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 366d45071e2a444aa552f231e24508af3eb704e415c6b738128a0398e54b53a7 [2023-02-15 13:49:46,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:49:46,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:49:46,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:49:46,674 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:49:46,675 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:49:46,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i [2023-02-15 13:49:47,817 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:49:48,023 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:49:48,023 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i [2023-02-15 13:49:48,027 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d46f0391/842d77e054574c5cafebb8604b0acf8e/FLAGcfe47cf62 [2023-02-15 13:49:48,040 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d46f0391/842d77e054574c5cafebb8604b0acf8e [2023-02-15 13:49:48,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:49:48,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:49:48,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:49:48,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:49:48,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:49:48,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4442d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48, skipping insertion in model container [2023-02-15 13:49:48,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:49:48,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:49:48,174 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i[873,886] [2023-02-15 13:49:48,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:49:48,195 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:49:48,205 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i[873,886] [2023-02-15 13:49:48,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:49:48,216 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:49:48,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48 WrapperNode [2023-02-15 13:49:48,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:49:48,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:49:48,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:49:48,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:49:48,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,242 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2023-02-15 13:49:48,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:49:48,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:49:48,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:49:48,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:49:48,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:49:48,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:49:48,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:49:48,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:49:48,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (1/1) ... [2023-02-15 13:49:48,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:49:48,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:48,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 13:49:48,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 13:49:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 13:49:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 13:49:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:49:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:49:48,382 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:49:48,388 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:49:48,549 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:49:48,557 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:49:48,560 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 13:49:48,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:49:48 BoogieIcfgContainer [2023-02-15 13:49:48,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:49:48,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:49:48,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:49:48,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:49:48,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:49:48" (1/3) ... [2023-02-15 13:49:48,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133f9226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:49:48, skipping insertion in model container [2023-02-15 13:49:48,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:49:48" (2/3) ... [2023-02-15 13:49:48,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133f9226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:49:48, skipping insertion in model container [2023-02-15 13:49:48,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:49:48" (3/3) ... [2023-02-15 13:49:48,571 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark38_conjunctive.i [2023-02-15 13:49:48,588 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:49:48,589 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-15 13:49:48,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:49:48,659 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;@7e8f447a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:49:48,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-15 13:49:48,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:48,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 13:49:48,671 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:48,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 13:49:48,673 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)] === [2023-02-15 13:49:48,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:48,680 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-15 13:49:48,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:48,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963033618] [2023-02-15 13:49:48,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:48,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:48,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:48,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:48,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963033618] [2023-02-15 13:49:48,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963033618] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:49:48,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:49:48,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:49:48,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372859706] [2023-02-15 13:49:48,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:49:48,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:49:48,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:48,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:49:48,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:49:48,914 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:48,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:48,939 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-02-15 13:49:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:49:48,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 13:49:48,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:48,952 INFO L225 Difference]: With dead ends: 30 [2023-02-15 13:49:48,953 INFO L226 Difference]: Without dead ends: 15 [2023-02-15 13:49:48,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:49:48,974 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 16 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 [2023-02-15 13:49:48,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:48,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-15 13:49:49,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-15 13:49:49,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.5) 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) [2023-02-15 13:49:49,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-15 13:49:49,024 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2023-02-15 13:49:49,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:49,024 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-15 13:49:49,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,025 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-15 13:49:49,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 13:49:49,025 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:49,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 13:49:49,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 13:49:49,026 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:49,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:49,027 INFO L85 PathProgramCache]: Analyzing trace with hash 28695922, now seen corresponding path program 1 times [2023-02-15 13:49:49,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:49,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328810275] [2023-02-15 13:49:49,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:49,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:49,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:49,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:49,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328810275] [2023-02-15 13:49:49,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328810275] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:49:49,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:49:49,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:49:49,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541111273] [2023-02-15 13:49:49,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:49:49,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:49:49,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:49,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:49:49,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:49:49,099 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:49,118 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2023-02-15 13:49:49,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:49:49,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 13:49:49,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:49,119 INFO L225 Difference]: With dead ends: 26 [2023-02-15 13:49:49,119 INFO L226 Difference]: Without dead ends: 25 [2023-02-15 13:49:49,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:49:49,121 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:49,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:49,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-15 13:49:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2023-02-15 13:49:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 16 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) [2023-02-15 13:49:49,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2023-02-15 13:49:49,126 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 5 [2023-02-15 13:49:49,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:49,127 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2023-02-15 13:49:49,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,127 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-02-15 13:49:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 13:49:49,127 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:49,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 13:49:49,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 13:49:49,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:49,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-15 13:49:49,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:49,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146708690] [2023-02-15 13:49:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:49,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:49,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:49,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:49,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146708690] [2023-02-15 13:49:49,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146708690] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:49:49,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:49:49,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:49:49,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196699223] [2023-02-15 13:49:49,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:49:49,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:49:49,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:49,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:49:49,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:49:49,199 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:49,213 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2023-02-15 13:49:49,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:49:49,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 13:49:49,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:49,214 INFO L225 Difference]: With dead ends: 22 [2023-02-15 13:49:49,214 INFO L226 Difference]: Without dead ends: 21 [2023-02-15 13:49:49,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:49:49,216 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:49,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 23 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:49,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-15 13:49:49,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2023-02-15 13:49:49,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.4285714285714286) 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) [2023-02-15 13:49:49,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2023-02-15 13:49:49,220 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 6 [2023-02-15 13:49:49,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:49,221 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2023-02-15 13:49:49,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,221 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2023-02-15 13:49:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 13:49:49,221 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:49,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 13:49:49,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 13:49:49,222 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:49,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:49,222 INFO L85 PathProgramCache]: Analyzing trace with hash 889573643, now seen corresponding path program 1 times [2023-02-15 13:49:49,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:49,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465151427] [2023-02-15 13:49:49,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:49,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:49,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:49,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465151427] [2023-02-15 13:49:49,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465151427] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:49:49,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:49:49,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:49:49,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734950534] [2023-02-15 13:49:49,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:49:49,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:49:49,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:49,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:49:49,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:49:49,261 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:49,274 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2023-02-15 13:49:49,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:49:49,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 13:49:49,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:49,276 INFO L225 Difference]: With dead ends: 25 [2023-02-15 13:49:49,276 INFO L226 Difference]: Without dead ends: 22 [2023-02-15 13:49:49,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:49:49,277 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:49,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:49,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-15 13:49:49,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2023-02-15 13:49:49,282 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) [2023-02-15 13:49:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-15 13:49:49,282 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2023-02-15 13:49:49,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:49,283 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-15 13:49:49,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,283 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-15 13:49:49,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 13:49:49,283 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:49,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:49:49,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 13:49:49,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:49,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:49,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-15 13:49:49,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:49,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813289805] [2023-02-15 13:49:49,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:49,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:49,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:49,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813289805] [2023-02-15 13:49:49,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813289805] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:49:49,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:49:49,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:49:49,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681153159] [2023-02-15 13:49:49,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:49:49,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:49:49,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:49,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:49:49,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:49:49,325 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:49,347 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-02-15 13:49:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:49:49,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 13:49:49,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:49,348 INFO L225 Difference]: With dead ends: 18 [2023-02-15 13:49:49,348 INFO L226 Difference]: Without dead ends: 16 [2023-02-15 13:49:49,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:49:49,350 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 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 [2023-02-15 13:49:49,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:49,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-15 13:49:49,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-15 13:49:49,354 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) [2023-02-15 13:49:49,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-15 13:49:49,354 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2023-02-15 13:49:49,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:49,355 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-15 13:49:49,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-15 13:49:49,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 13:49:49,355 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:49,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:49:49,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 13:49:49,356 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:49,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:49,364 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-15 13:49:49,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:49,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235674676] [2023-02-15 13:49:49,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:49,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:49,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:49,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235674676] [2023-02-15 13:49:49,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235674676] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:49:49,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:49:49,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:49:49,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131225712] [2023-02-15 13:49:49,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:49:49,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:49:49,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:49,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:49:49,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:49:49,421 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:49,440 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2023-02-15 13:49:49,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:49:49,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 13:49:49,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:49,442 INFO L225 Difference]: With dead ends: 19 [2023-02-15 13:49:49,442 INFO L226 Difference]: Without dead ends: 18 [2023-02-15 13:49:49,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:49:49,443 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:49,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:49,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-15 13:49:49,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-15 13:49:49,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2) 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) [2023-02-15 13:49:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-15 13:49:49,447 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2023-02-15 13:49:49,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:49,448 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-15 13:49:49,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,448 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-15 13:49:49,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 13:49:49,449 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:49,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:49:49,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 13:49:49,449 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)] === [2023-02-15 13:49:49,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:49,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1472766433, now seen corresponding path program 1 times [2023-02-15 13:49:49,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:49,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896453394] [2023-02-15 13:49:49,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:49,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:49,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:49,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896453394] [2023-02-15 13:49:49,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896453394] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:49:49,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440373664] [2023-02-15 13:49:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:49,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:49,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:49,513 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:49:49,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 13:49:49,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:49,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 13:49:49,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:49:49,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:49,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:49:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:49,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440373664] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:49:49,677 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:49:49,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 13:49:49,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872755439] [2023-02-15 13:49:49,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:49:49,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 13:49:49,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:49,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 13:49:49,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:49:49,681 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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) [2023-02-15 13:49:49,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:49,722 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2023-02-15 13:49:49,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:49:49,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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) Word has length 11 [2023-02-15 13:49:49,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:49,724 INFO L225 Difference]: With dead ends: 43 [2023-02-15 13:49:49,726 INFO L226 Difference]: Without dead ends: 42 [2023-02-15 13:49:49,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:49:49,728 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:49,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 41 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:49,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-15 13:49:49,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2023-02-15 13:49:49,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:49,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-02-15 13:49:49,747 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 11 [2023-02-15 13:49:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:49,747 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-02-15 13:49:49,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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) [2023-02-15 13:49:49,747 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-02-15 13:49:49,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 13:49:49,748 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:49,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:49:49,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 13:49:49,953 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 [2023-02-15 13:49:49,954 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:49,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:49,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1472764863, now seen corresponding path program 1 times [2023-02-15 13:49:49,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:49,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865238233] [2023-02-15 13:49:49,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:49,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:50,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:50,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:50,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865238233] [2023-02-15 13:49:50,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865238233] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:49:50,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405674790] [2023-02-15 13:49:50,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:50,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:50,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:50,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:49:50,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 13:49:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:50,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 13:49:50,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:49:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:50,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:49:50,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:50,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405674790] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:49:50,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:49:50,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-15 13:49:50,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028317356] [2023-02-15 13:49:50,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:49:50,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 13:49:50,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:50,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 13:49:50,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-15 13:49:50,114 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 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) [2023-02-15 13:49:50,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:50,149 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-02-15 13:49:50,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 13:49:50,150 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 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) Word has length 11 [2023-02-15 13:49:50,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:50,150 INFO L225 Difference]: With dead ends: 38 [2023-02-15 13:49:50,150 INFO L226 Difference]: Without dead ends: 32 [2023-02-15 13:49:50,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-02-15 13:49:50,151 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:50,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 37 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:50,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-15 13:49:50,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-02-15 13:49:50,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:50,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-02-15 13:49:50,156 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 11 [2023-02-15 13:49:50,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:50,156 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-02-15 13:49:50,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 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) [2023-02-15 13:49:50,157 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-02-15 13:49:50,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 13:49:50,157 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:50,157 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-02-15 13:49:50,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 13:49:50,363 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 [2023-02-15 13:49:50,364 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:50,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:50,364 INFO L85 PathProgramCache]: Analyzing trace with hash -555665681, now seen corresponding path program 1 times [2023-02-15 13:49:50,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:50,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965276616] [2023-02-15 13:49:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:50,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:50,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:50,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965276616] [2023-02-15 13:49:50,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965276616] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:49:50,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583266219] [2023-02-15 13:49:50,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:50,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:50,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:50,441 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:49:50,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 13:49:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:50,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 13:49:50,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:49:50,535 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:50,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:49:50,618 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:50,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583266219] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:49:50,619 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:49:50,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-15 13:49:50,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996614044] [2023-02-15 13:49:50,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:49:50,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 13:49:50,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:50,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 13:49:50,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-02-15 13:49:50,621 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:50,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:50,735 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2023-02-15 13:49:50,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-15 13:49:50,737 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-15 13:49:50,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:50,739 INFO L225 Difference]: With dead ends: 55 [2023-02-15 13:49:50,740 INFO L226 Difference]: Without dead ends: 54 [2023-02-15 13:49:50,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-02-15 13:49:50,742 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:50,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 48 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:50,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-15 13:49:50,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 43. [2023-02-15 13:49:50,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.2) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:50,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2023-02-15 13:49:50,759 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 18 [2023-02-15 13:49:50,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:50,759 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2023-02-15 13:49:50,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:50,760 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2023-02-15 13:49:50,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 13:49:50,760 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:50,760 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-15 13:49:50,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 13:49:50,969 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 [2023-02-15 13:49:50,970 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:50,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:50,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1032299713, now seen corresponding path program 2 times [2023-02-15 13:49:50,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:50,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146538718] [2023-02-15 13:49:50,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:50,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:51,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:51,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146538718] [2023-02-15 13:49:51,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146538718] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:49:51,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035814571] [2023-02-15 13:49:51,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:49:51,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:51,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:51,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:49:51,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 13:49:51,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:49:51,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:49:51,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 13:49:51,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:49:51,143 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:51,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:49:51,237 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:51,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035814571] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:49:51,238 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:49:51,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-02-15 13:49:51,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916697303] [2023-02-15 13:49:51,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:49:51,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 13:49:51,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:51,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 13:49:51,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-02-15 13:49:51,245 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:51,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:51,345 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2023-02-15 13:49:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 13:49:51,348 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 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 21 [2023-02-15 13:49:51,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:51,350 INFO L225 Difference]: With dead ends: 61 [2023-02-15 13:49:51,350 INFO L226 Difference]: Without dead ends: 52 [2023-02-15 13:49:51,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2023-02-15 13:49:51,352 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 38 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:51,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 56 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:51,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-15 13:49:51,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2023-02-15 13:49:51,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 43 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:51,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2023-02-15 13:49:51,364 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 21 [2023-02-15 13:49:51,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:51,364 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2023-02-15 13:49:51,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:51,365 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2023-02-15 13:49:51,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-15 13:49:51,365 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:51,366 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2023-02-15 13:49:51,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 13:49:51,577 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 [2023-02-15 13:49:51,577 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)] === [2023-02-15 13:49:51,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:51,578 INFO L85 PathProgramCache]: Analyzing trace with hash 924342317, now seen corresponding path program 2 times [2023-02-15 13:49:51,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:51,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458421486] [2023-02-15 13:49:51,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:51,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:51,703 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:51,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:51,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458421486] [2023-02-15 13:49:51,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458421486] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:49:51,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387599722] [2023-02-15 13:49:51,703 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:49:51,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:51,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:51,705 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:49:51,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 13:49:51,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:49:51,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:49:51,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 13:49:51,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:49:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:51,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:49:51,884 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:51,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387599722] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:49:51,884 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:49:51,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 13:49:51,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742232676] [2023-02-15 13:49:51,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:49:51,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 13:49:51,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:51,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 13:49:51,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 13:49:51,885 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:51,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:51,920 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2023-02-15 13:49:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 13:49:51,922 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 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 26 [2023-02-15 13:49:51,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:51,922 INFO L225 Difference]: With dead ends: 74 [2023-02-15 13:49:51,922 INFO L226 Difference]: Without dead ends: 73 [2023-02-15 13:49:51,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 13:49:51,923 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 22 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:51,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 70 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:51,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-02-15 13:49:51,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2023-02-15 13:49:51,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 60 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:51,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2023-02-15 13:49:51,927 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 26 [2023-02-15 13:49:51,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:51,927 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2023-02-15 13:49:51,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2023-02-15 13:49:51,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-15 13:49:51,928 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:51,928 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1] [2023-02-15 13:49:51,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 13:49:52,129 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 [2023-02-15 13:49:52,129 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:52,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:52,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1547319279, now seen corresponding path program 2 times [2023-02-15 13:49:52,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:52,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294360583] [2023-02-15 13:49:52,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:52,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:52,350 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:52,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:52,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294360583] [2023-02-15 13:49:52,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294360583] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:49:52,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381876046] [2023-02-15 13:49:52,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:49:52,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:52,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:52,352 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:49:52,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 13:49:52,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:49:52,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:49:52,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 13:49:52,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:49:52,458 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:52,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:49:52,700 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:52,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381876046] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:49:52,700 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:49:52,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 29 [2023-02-15 13:49:52,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535713964] [2023-02-15 13:49:52,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:49:52,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-02-15 13:49:52,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:52,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-02-15 13:49:52,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2023-02-15 13:49:52,705 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 30 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 30 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:53,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:53,016 INFO L93 Difference]: Finished difference Result 109 states and 116 transitions. [2023-02-15 13:49:53,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-15 13:49:53,017 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 30 states have internal predecessors, (74), 0 states have call successors, (0), 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 38 [2023-02-15 13:49:53,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:53,017 INFO L225 Difference]: With dead ends: 109 [2023-02-15 13:49:53,017 INFO L226 Difference]: Without dead ends: 108 [2023-02-15 13:49:53,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=568, Invalid=1324, Unknown=0, NotChecked=0, Total=1892 [2023-02-15 13:49:53,019 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 114 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:53,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 86 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:49:53,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-02-15 13:49:53,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 83. [2023-02-15 13:49:53,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 80 states have (on average 1.175) internal successors, (94), 82 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:53,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2023-02-15 13:49:53,025 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 38 [2023-02-15 13:49:53,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:53,025 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2023-02-15 13:49:53,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 30 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2023-02-15 13:49:53,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-02-15 13:49:53,026 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:53,026 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2023-02-15 13:49:53,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 13:49:53,232 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 [2023-02-15 13:49:53,233 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:53,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:53,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1695303105, now seen corresponding path program 3 times [2023-02-15 13:49:53,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:53,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991836727] [2023-02-15 13:49:53,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:53,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:53,493 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:53,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:53,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991836727] [2023-02-15 13:49:53,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991836727] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:49:53,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906930848] [2023-02-15 13:49:53,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 13:49:53,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:53,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:53,495 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:49:53,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 13:49:53,543 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-15 13:49:53,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:49:53,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-15 13:49:53,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:49:53,607 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:53,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:49:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:53,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906930848] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:49:53,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:49:53,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2023-02-15 13:49:53,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35082950] [2023-02-15 13:49:53,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:49:53,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-15 13:49:53,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:53,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-15 13:49:53,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2023-02-15 13:49:53,870 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:54,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:54,135 INFO L93 Difference]: Finished difference Result 111 states and 118 transitions. [2023-02-15 13:49:54,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-15 13:49:54,136 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 0 states have call successors, (0), 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 41 [2023-02-15 13:49:54,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:54,136 INFO L225 Difference]: With dead ends: 111 [2023-02-15 13:49:54,137 INFO L226 Difference]: Without dead ends: 94 [2023-02-15 13:49:54,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=1447, Unknown=0, NotChecked=0, Total=2070 [2023-02-15 13:49:54,138 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 114 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:54,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 107 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:49:54,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-02-15 13:49:54,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2023-02-15 13:49:54,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 81 states have (on average 1.0864197530864197) internal successors, (88), 83 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:54,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2023-02-15 13:49:54,144 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 41 [2023-02-15 13:49:54,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:54,144 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2023-02-15 13:49:54,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:54,145 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2023-02-15 13:49:54,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-15 13:49:54,146 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:54,146 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2023-02-15 13:49:54,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 13:49:54,352 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 [2023-02-15 13:49:54,352 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:54,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:54,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1183028819, now seen corresponding path program 3 times [2023-02-15 13:49:54,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:54,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030661138] [2023-02-15 13:49:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:54,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:54,527 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:54,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:54,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030661138] [2023-02-15 13:49:54,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030661138] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:49:54,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719511237] [2023-02-15 13:49:54,528 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 13:49:54,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:54,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:54,529 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:49:54,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 13:49:54,589 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 13:49:54,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:49:54,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 13:49:54,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:49:54,652 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:54,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:49:54,880 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:54,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719511237] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:49:54,881 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:49:54,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 13:49:54,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779487503] [2023-02-15 13:49:54,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:49:54,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 13:49:54,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:54,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 13:49:54,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 13:49:54,882 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:54,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:54,939 INFO L93 Difference]: Finished difference Result 150 states and 161 transitions. [2023-02-15 13:49:54,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 13:49:54,939 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 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 56 [2023-02-15 13:49:54,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:54,941 INFO L225 Difference]: With dead ends: 150 [2023-02-15 13:49:54,941 INFO L226 Difference]: Without dead ends: 149 [2023-02-15 13:49:54,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 13:49:54,942 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 66 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:54,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 115 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:49:54,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-02-15 13:49:54,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 121. [2023-02-15 13:49:54,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 118 states have (on average 1.1440677966101696) internal successors, (135), 120 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:54,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 135 transitions. [2023-02-15 13:49:54,956 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 135 transitions. Word has length 56 [2023-02-15 13:49:54,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:54,956 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 135 transitions. [2023-02-15 13:49:54,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:54,957 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 135 transitions. [2023-02-15 13:49:54,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-02-15 13:49:54,958 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:54,958 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 1, 1, 1, 1] [2023-02-15 13:49:54,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 13:49:55,163 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 [2023-02-15 13:49:55,164 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:55,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:55,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1552726511, now seen corresponding path program 3 times [2023-02-15 13:49:55,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:55,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396460619] [2023-02-15 13:49:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:55,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:55,775 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:55,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:55,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396460619] [2023-02-15 13:49:55,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396460619] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:49:55,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71990741] [2023-02-15 13:49:55,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 13:49:55,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:55,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:55,778 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:49:55,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 13:49:55,863 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-15 13:49:55,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:49:55,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-15 13:49:55,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:49:55,988 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:55,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:49:56,824 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:56,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71990741] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:49:56,825 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:49:56,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 61 [2023-02-15 13:49:56,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960301699] [2023-02-15 13:49:56,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:49:56,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2023-02-15 13:49:56,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:56,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2023-02-15 13:49:56,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=991, Invalid=2791, Unknown=0, NotChecked=0, Total=3782 [2023-02-15 13:49:56,828 INFO L87 Difference]: Start difference. First operand 121 states and 135 transitions. Second operand has 62 states, 61 states have (on average 2.5245901639344264) internal successors, (154), 62 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:57,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:49:57,577 INFO L93 Difference]: Finished difference Result 217 states and 232 transitions. [2023-02-15 13:49:57,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-02-15 13:49:57,578 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 2.5245901639344264) internal successors, (154), 62 states have internal predecessors, (154), 0 states have call successors, (0), 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 78 [2023-02-15 13:49:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:49:57,579 INFO L225 Difference]: With dead ends: 217 [2023-02-15 13:49:57,579 INFO L226 Difference]: Without dead ends: 216 [2023-02-15 13:49:57,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1654 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2416, Invalid=5956, Unknown=0, NotChecked=0, Total=8372 [2023-02-15 13:49:57,581 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 298 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:49:57,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 120 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:49:57,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-02-15 13:49:57,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 163. [2023-02-15 13:49:57,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 160 states have (on average 1.1625) internal successors, (186), 162 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:57,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 186 transitions. [2023-02-15 13:49:57,593 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 186 transitions. Word has length 78 [2023-02-15 13:49:57,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:49:57,594 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 186 transitions. [2023-02-15 13:49:57,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 2.5245901639344264) internal successors, (154), 62 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:49:57,595 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 186 transitions. [2023-02-15 13:49:57,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-15 13:49:57,599 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:49:57,600 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1] [2023-02-15 13:49:57,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 13:49:57,809 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 [2023-02-15 13:49:57,809 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:49:57,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:49:57,810 INFO L85 PathProgramCache]: Analyzing trace with hash 477755455, now seen corresponding path program 4 times [2023-02-15 13:49:57,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:49:57,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106958857] [2023-02-15 13:49:57,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:49:57,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:49:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:49:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:58,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:49:58,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106958857] [2023-02-15 13:49:58,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106958857] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:49:58,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112817028] [2023-02-15 13:49:58,392 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 13:49:58,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:49:58,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:49:58,394 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:49:58,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 13:49:58,449 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 13:49:58,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:49:58,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-15 13:49:58,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:49:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:58,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:49:59,435 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:49:59,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112817028] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:49:59,435 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:49:59,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2023-02-15 13:49:59,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393381349] [2023-02-15 13:49:59,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:49:59,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-15 13:49:59,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:49:59,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-15 13:49:59,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2023-02-15 13:49:59,438 INFO L87 Difference]: Start difference. First operand 163 states and 186 transitions. Second operand has 64 states, 63 states have (on average 2.5396825396825395) internal successors, (160), 64 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:00,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:50:00,167 INFO L93 Difference]: Finished difference Result 211 states and 226 transitions. [2023-02-15 13:50:00,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-02-15 13:50:00,167 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 2.5396825396825395) internal successors, (160), 64 states have internal predecessors, (160), 0 states have call successors, (0), 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 81 [2023-02-15 13:50:00,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:50:00,168 INFO L225 Difference]: With dead ends: 211 [2023-02-15 13:50:00,168 INFO L226 Difference]: Without dead ends: 178 [2023-02-15 13:50:00,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1726 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2527, Invalid=6215, Unknown=0, NotChecked=0, Total=8742 [2023-02-15 13:50:00,171 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 274 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:50:00,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 151 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:50:00,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-02-15 13:50:00,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 164. [2023-02-15 13:50:00,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 161 states have (on average 1.0683229813664596) internal successors, (172), 163 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) [2023-02-15 13:50:00,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 172 transitions. [2023-02-15 13:50:00,177 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 172 transitions. Word has length 81 [2023-02-15 13:50:00,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:50:00,177 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 172 transitions. [2023-02-15 13:50:00,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 2.5396825396825395) internal successors, (160), 64 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:00,178 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 172 transitions. [2023-02-15 13:50:00,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-02-15 13:50:00,179 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:50:00,179 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2023-02-15 13:50:00,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 13:50:00,384 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 [2023-02-15 13:50:00,384 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)] === [2023-02-15 13:50:00,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:50:00,385 INFO L85 PathProgramCache]: Analyzing trace with hash 493726893, now seen corresponding path program 4 times [2023-02-15 13:50:00,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:50:00,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763477709] [2023-02-15 13:50:00,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:50:00,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:50:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:50:00,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:00,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:50:00,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763477709] [2023-02-15 13:50:00,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763477709] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:50:00,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405596972] [2023-02-15 13:50:00,934 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 13:50:00,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:50:00,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:50:00,936 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:50:00,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 13:50:01,002 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 13:50:01,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:50:01,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 13:50:01,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:50:01,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:01,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:50:01,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:01,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405596972] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:50:01,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:50:01,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-15 13:50:01,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773134962] [2023-02-15 13:50:01,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:50:01,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 13:50:01,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:50:01,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 13:50:01,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 13:50:01,889 INFO L87 Difference]: Start difference. First operand 164 states and 172 transitions. Second operand has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:02,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:50:02,015 INFO L93 Difference]: Finished difference Result 302 states and 325 transitions. [2023-02-15 13:50:02,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 13:50:02,016 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 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 116 [2023-02-15 13:50:02,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:50:02,018 INFO L225 Difference]: With dead ends: 302 [2023-02-15 13:50:02,018 INFO L226 Difference]: Without dead ends: 301 [2023-02-15 13:50:02,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 13:50:02,019 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 154 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:50:02,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 235 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:50:02,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-02-15 13:50:02,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 241. [2023-02-15 13:50:02,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 238 states have (on average 1.138655462184874) internal successors, (271), 240 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:02,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 271 transitions. [2023-02-15 13:50:02,028 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 271 transitions. Word has length 116 [2023-02-15 13:50:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:50:02,028 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 271 transitions. [2023-02-15 13:50:02,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:02,029 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 271 transitions. [2023-02-15 13:50:02,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-02-15 13:50:02,030 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:50:02,030 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 30, 1, 1, 1, 1] [2023-02-15 13:50:02,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 13:50:02,236 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 [2023-02-15 13:50:02,236 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:50:02,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:50:02,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1565278737, now seen corresponding path program 4 times [2023-02-15 13:50:02,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:50:02,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593881271] [2023-02-15 13:50:02,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:50:02,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:50:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:50:04,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:04,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:50:04,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593881271] [2023-02-15 13:50:04,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593881271] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:50:04,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731298457] [2023-02-15 13:50:04,007 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 13:50:04,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:50:04,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:50:04,008 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:50:04,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 13:50:04,084 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 13:50:04,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:50:04,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 63 conjunts are in the unsatisfiable core [2023-02-15 13:50:04,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:50:04,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:04,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:50:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:07,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731298457] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:50:07,015 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:50:07,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 125 [2023-02-15 13:50:07,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664102869] [2023-02-15 13:50:07,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:50:07,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2023-02-15 13:50:07,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:50:07,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2023-02-15 13:50:07,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4031, Invalid=11719, Unknown=0, NotChecked=0, Total=15750 [2023-02-15 13:50:07,022 INFO L87 Difference]: Start difference. First operand 241 states and 271 transitions. Second operand has 126 states, 125 states have (on average 2.512) internal successors, (314), 126 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:09,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:50:09,376 INFO L93 Difference]: Finished difference Result 433 states and 464 transitions. [2023-02-15 13:50:09,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-02-15 13:50:09,380 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 125 states have (on average 2.512) internal successors, (314), 126 states have internal predecessors, (314), 0 states have call successors, (0), 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 158 [2023-02-15 13:50:09,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:50:09,382 INFO L225 Difference]: With dead ends: 433 [2023-02-15 13:50:09,382 INFO L226 Difference]: Without dead ends: 432 [2023-02-15 13:50:09,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7382 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=9952, Invalid=25204, Unknown=0, NotChecked=0, Total=35156 [2023-02-15 13:50:09,386 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 891 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 13:50:09,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 226 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 13:50:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-02-15 13:50:09,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 323. [2023-02-15 13:50:09,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 320 states have (on average 1.15625) internal successors, (370), 322 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:09,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 370 transitions. [2023-02-15 13:50:09,395 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 370 transitions. Word has length 158 [2023-02-15 13:50:09,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:50:09,395 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 370 transitions. [2023-02-15 13:50:09,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 125 states have (on average 2.512) internal successors, (314), 126 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:09,396 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 370 transitions. [2023-02-15 13:50:09,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-02-15 13:50:09,397 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:50:09,397 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1] [2023-02-15 13:50:09,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 13:50:09,602 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 [2023-02-15 13:50:09,603 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:50:09,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:50:09,603 INFO L85 PathProgramCache]: Analyzing trace with hash -758877121, now seen corresponding path program 5 times [2023-02-15 13:50:09,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:50:09,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237744439] [2023-02-15 13:50:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:50:09,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:50:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:50:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:11,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:50:11,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237744439] [2023-02-15 13:50:11,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237744439] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:50:11,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754999711] [2023-02-15 13:50:11,388 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 13:50:11,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:50:11,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:50:11,390 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:50:11,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 13:50:11,553 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-15 13:50:11,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:50:11,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 64 conjunts are in the unsatisfiable core [2023-02-15 13:50:11,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:50:11,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:11,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:50:14,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:14,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754999711] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:50:14,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:50:14,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2023-02-15 13:50:14,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849799416] [2023-02-15 13:50:14,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:50:14,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2023-02-15 13:50:14,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:50:14,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2023-02-15 13:50:14,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4160, Invalid=12096, Unknown=0, NotChecked=0, Total=16256 [2023-02-15 13:50:14,571 INFO L87 Difference]: Start difference. First operand 323 states and 370 transitions. Second operand has 128 states, 127 states have (on average 2.5196850393700787) internal successors, (320), 128 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:16,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:50:16,873 INFO L93 Difference]: Finished difference Result 411 states and 442 transitions. [2023-02-15 13:50:16,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-02-15 13:50:16,874 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 2.5196850393700787) internal successors, (320), 128 states have internal predecessors, (320), 0 states have call successors, (0), 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 161 [2023-02-15 13:50:16,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:50:16,875 INFO L225 Difference]: With dead ends: 411 [2023-02-15 13:50:16,875 INFO L226 Difference]: Without dead ends: 346 [2023-02-15 13:50:16,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7534 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=10175, Invalid=25735, Unknown=0, NotChecked=0, Total=35910 [2023-02-15 13:50:16,879 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 707 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 13:50:16,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 240 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 13:50:16,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-02-15 13:50:16,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 324. [2023-02-15 13:50:16,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 321 states have (on average 1.0591900311526479) internal successors, (340), 323 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:16,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 340 transitions. [2023-02-15 13:50:16,893 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 340 transitions. Word has length 161 [2023-02-15 13:50:16,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:50:16,894 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 340 transitions. [2023-02-15 13:50:16,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 2.5196850393700787) internal successors, (320), 128 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:16,895 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 340 transitions. [2023-02-15 13:50:16,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-02-15 13:50:16,897 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:50:16,898 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1] [2023-02-15 13:50:16,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-15 13:50:17,103 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 [2023-02-15 13:50:17,104 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:50:17,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:50:17,104 INFO L85 PathProgramCache]: Analyzing trace with hash 982823597, now seen corresponding path program 5 times [2023-02-15 13:50:17,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:50:17,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196144495] [2023-02-15 13:50:17,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:50:17,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:50:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:50:18,773 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:18,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:50:18,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196144495] [2023-02-15 13:50:18,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196144495] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:50:18,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442819854] [2023-02-15 13:50:18,774 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 13:50:18,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:50:18,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:50:18,775 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:50:18,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 13:50:19,202 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 13:50:19,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:50:19,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 49 conjunts are in the unsatisfiable core [2023-02-15 13:50:19,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:50:19,492 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:19,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:50:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:21,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442819854] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:50:21,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:50:21,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-15 13:50:21,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714701203] [2023-02-15 13:50:21,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:50:21,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-15 13:50:21,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:50:21,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-15 13:50:21,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 13:50:21,850 INFO L87 Difference]: Start difference. First operand 324 states and 340 transitions. Second operand has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:22,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:50:22,248 INFO L93 Difference]: Finished difference Result 606 states and 653 transitions. [2023-02-15 13:50:22,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 13:50:22,248 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 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 236 [2023-02-15 13:50:22,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:50:22,250 INFO L225 Difference]: With dead ends: 606 [2023-02-15 13:50:22,251 INFO L226 Difference]: Without dead ends: 605 [2023-02-15 13:50:22,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 13:50:22,252 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 286 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 13:50:22,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 450 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 13:50:22,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2023-02-15 13:50:22,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 481. [2023-02-15 13:50:22,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 478 states have (on average 1.1359832635983265) internal successors, (543), 480 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:22,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 543 transitions. [2023-02-15 13:50:22,265 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 543 transitions. Word has length 236 [2023-02-15 13:50:22,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:50:22,266 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 543 transitions. [2023-02-15 13:50:22,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:22,267 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 543 transitions. [2023-02-15 13:50:22,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-02-15 13:50:22,269 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:50:22,270 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 62, 1, 1, 1, 1] [2023-02-15 13:50:22,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 13:50:22,476 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 [2023-02-15 13:50:22,476 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:50:22,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:50:22,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1123432977, now seen corresponding path program 5 times [2023-02-15 13:50:22,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:50:22,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763570612] [2023-02-15 13:50:22,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:50:22,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:50:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:50:29,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:29,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:50:29,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763570612] [2023-02-15 13:50:29,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763570612] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:50:29,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868679918] [2023-02-15 13:50:29,179 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 13:50:29,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:50:29,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:50:29,181 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:50:29,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 13:50:29,895 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2023-02-15 13:50:29,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:50:29,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 127 conjunts are in the unsatisfiable core [2023-02-15 13:50:29,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:50:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:30,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:50:40,424 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:40,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868679918] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:50:40,425 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:50:40,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [127, 127, 127] total 253 [2023-02-15 13:50:40,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485694607] [2023-02-15 13:50:40,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:50:40,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 254 states [2023-02-15 13:50:40,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:50:40,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 254 interpolants. [2023-02-15 13:50:40,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16255, Invalid=48007, Unknown=0, NotChecked=0, Total=64262 [2023-02-15 13:50:40,432 INFO L87 Difference]: Start difference. First operand 481 states and 543 transitions. Second operand has 254 states, 253 states have (on average 2.505928853754941) internal successors, (634), 254 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:50,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:50:50,277 INFO L93 Difference]: Finished difference Result 865 states and 928 transitions. [2023-02-15 13:50:50,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 254 states. [2023-02-15 13:50:50,278 INFO L78 Accepts]: Start accepts. Automaton has has 254 states, 253 states have (on average 2.505928853754941) internal successors, (634), 254 states have internal predecessors, (634), 0 states have call successors, (0), 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 318 [2023-02-15 13:50:50,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:50:50,283 INFO L225 Difference]: With dead ends: 865 [2023-02-15 13:50:50,283 INFO L226 Difference]: Without dead ends: 864 [2023-02-15 13:50:50,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 378 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31126 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=40384, Invalid=103636, Unknown=0, NotChecked=0, Total=144020 [2023-02-15 13:50:50,292 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1916 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 13:50:50,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1916 Valid, 411 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-15 13:50:50,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2023-02-15 13:50:50,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 643. [2023-02-15 13:50:50,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 640 states have (on average 1.153125) internal successors, (738), 642 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:50,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 738 transitions. [2023-02-15 13:50:50,312 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 738 transitions. Word has length 318 [2023-02-15 13:50:50,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:50:50,313 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 738 transitions. [2023-02-15 13:50:50,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 254 states, 253 states have (on average 2.505928853754941) internal successors, (634), 254 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:50:50,313 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 738 transitions. [2023-02-15 13:50:50,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-02-15 13:50:50,316 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:50:50,316 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1] [2023-02-15 13:50:50,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-02-15 13:50:50,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:50:50,523 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:50:50,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:50:50,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1806603201, now seen corresponding path program 6 times [2023-02-15 13:50:50,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:50:50,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691797976] [2023-02-15 13:50:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:50:50,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:50:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:50:56,923 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:56,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:50:56,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691797976] [2023-02-15 13:50:56,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691797976] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:50:56,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316245377] [2023-02-15 13:50:56,924 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 13:50:56,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:50:56,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:50:56,926 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:50:56,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 13:50:57,357 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-02-15 13:50:57,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:50:57,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 128 conjunts are in the unsatisfiable core [2023-02-15 13:50:57,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:50:57,700 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:50:57,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:08,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316245377] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:08,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:08,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 255 [2023-02-15 13:51:08,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147699590] [2023-02-15 13:51:08,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:08,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2023-02-15 13:51:08,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:08,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2023-02-15 13:51:08,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16512, Invalid=48768, Unknown=0, NotChecked=0, Total=65280 [2023-02-15 13:51:08,026 INFO L87 Difference]: Start difference. First operand 643 states and 738 transitions. Second operand has 256 states, 255 states have (on average 2.5098039215686274) internal successors, (640), 256 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:51:17,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:17,570 INFO L93 Difference]: Finished difference Result 811 states and 874 transitions. [2023-02-15 13:51:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2023-02-15 13:51:17,571 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 255 states have (on average 2.5098039215686274) internal successors, (640), 256 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2023-02-15 13:51:17,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:17,573 INFO L225 Difference]: With dead ends: 811 [2023-02-15 13:51:17,574 INFO L226 Difference]: Without dead ends: 682 [2023-02-15 13:51:17,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 894 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31438 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=40831, Invalid=104711, Unknown=0, NotChecked=0, Total=145542 [2023-02-15 13:51:17,580 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2143 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:17,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 424 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 13:51:17,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-02-15 13:51:17,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 644. [2023-02-15 13:51:17,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 641 states have (on average 1.0546021840873634) internal successors, (676), 643 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:51:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 676 transitions. [2023-02-15 13:51:17,596 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 676 transitions. Word has length 321 [2023-02-15 13:51:17,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:17,597 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 676 transitions. [2023-02-15 13:51:17,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 255 states have (on average 2.5098039215686274) internal successors, (640), 256 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:51:17,598 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 676 transitions. [2023-02-15 13:51:17,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2023-02-15 13:51:17,603 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:17,603 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1] [2023-02-15 13:51:17,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-15 13:51:17,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-02-15 13:51:17,810 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:17,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:17,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1056226989, now seen corresponding path program 6 times [2023-02-15 13:51:17,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:17,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845588430] [2023-02-15 13:51:17,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:17,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:51:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:23,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:51:23,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845588430] [2023-02-15 13:51:23,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845588430] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:51:23,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968799258] [2023-02-15 13:51:23,022 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 13:51:23,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:23,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:51:23,029 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:51:23,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 13:51:23,940 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 13:51:23,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:51:23,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 97 conjunts are in the unsatisfiable core [2023-02-15 13:51:23,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:51:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:24,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:51:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:51:33,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968799258] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:51:33,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:51:33,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-15 13:51:33,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424970222] [2023-02-15 13:51:33,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:51:33,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-15 13:51:33,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:51:33,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-15 13:51:33,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 13:51:33,107 INFO L87 Difference]: Start difference. First operand 644 states and 676 transitions. Second operand has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:51:34,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:51:34,208 INFO L93 Difference]: Finished difference Result 1214 states and 1309 transitions. [2023-02-15 13:51:34,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-15 13:51:34,212 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 0 states have call successors, (0), 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 476 [2023-02-15 13:51:34,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:51:34,216 INFO L225 Difference]: With dead ends: 1214 [2023-02-15 13:51:34,216 INFO L226 Difference]: Without dead ends: 1213 [2023-02-15 13:51:34,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1046 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 13:51:34,218 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 866 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 13:51:34,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 864 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 13:51:34,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2023-02-15 13:51:34,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 961. [2023-02-15 13:51:34,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 958 states have (on average 1.1346555323590815) internal successors, (1087), 960 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:51:34,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1087 transitions. [2023-02-15 13:51:34,242 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1087 transitions. Word has length 476 [2023-02-15 13:51:34,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:51:34,242 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1087 transitions. [2023-02-15 13:51:34,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:51:34,243 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1087 transitions. [2023-02-15 13:51:34,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2023-02-15 13:51:34,247 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:51:34,247 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 126, 1, 1, 1, 1] [2023-02-15 13:51:34,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-15 13:51:34,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:51:34,455 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 13:51:34,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:51:34,456 INFO L85 PathProgramCache]: Analyzing trace with hash -371862033, now seen corresponding path program 6 times [2023-02-15 13:51:34,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:51:34,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952466947] [2023-02-15 13:51:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:51:34,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:51:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:52:00,807 INFO L134 CoverageAnalysis]: Checked inductivity of 40005 backedges. 0 proven. 40005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:52:00,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:52:00,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952466947] [2023-02-15 13:52:00,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952466947] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:52:00,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104995539] [2023-02-15 13:52:00,808 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 13:52:00,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:52:00,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:52:00,809 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:52:00,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-15 13:52:03,963 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 127 check-sat command(s) [2023-02-15 13:52:03,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:52:03,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 255 conjunts are in the unsatisfiable core [2023-02-15 13:52:03,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:52:04,604 INFO L134 CoverageAnalysis]: Checked inductivity of 40005 backedges. 0 proven. 40005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:52:04,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:52:44,398 INFO L134 CoverageAnalysis]: Checked inductivity of 40005 backedges. 0 proven. 40005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:52:44,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104995539] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:52:44,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:52:44,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [255, 255, 255] total 509 [2023-02-15 13:52:44,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557713783] [2023-02-15 13:52:44,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:52:44,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 510 states [2023-02-15 13:52:44,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:52:44,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 510 interpolants. [2023-02-15 13:52:44,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65279, Invalid=194311, Unknown=0, NotChecked=0, Total=259590 [2023-02-15 13:52:44,430 INFO L87 Difference]: Start difference. First operand 961 states and 1087 transitions. Second operand has 510 states, 509 states have (on average 2.5029469548133596) internal successors, (1274), 510 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)