./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/twisted.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/twisted.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:44:45,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:44:45,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:44:45,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:44:45,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:44:45,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:44:45,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:44:45,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:44:45,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:44:45,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:44:45,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:44:45,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:44:45,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:44:45,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:44:45,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:44:45,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:44:45,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:44:45,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:44:45,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:44:45,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:44:45,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:44:45,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:44:45,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:44:45,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:44:45,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:44:45,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:44:45,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:44:45,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:44:45,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:44:45,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:44:45,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:44:45,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:44:45,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:44:45,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:44:45,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:44:45,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:44:45,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:44:45,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:44:45,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:44:45,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:44:45,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:44:45,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 23:44:45,571 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:44:45,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:44:45,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:44:45,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:44:45,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:44:45,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:44:45,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:44:45,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:44:45,573 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:44:45,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:44:45,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:44:45,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:44:45,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:44:45,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:44:45,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:44:45,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:44:45,575 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:44:45,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:44:45,575 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:44:45,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:44:45,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:44:45,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:44:45,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:44:45,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:44:45,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:44:45,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:44:45,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:44:45,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:44:45,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:44:45,576 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:44:45,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:44:45,577 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:44:45,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:44:45,577 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:44:45,577 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b68c797f7da07f29717590596e5fa31674f85e16d7b32a9335da92aff43a272 [2023-02-18 23:44:45,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:44:45,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:44:45,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:44:45,789 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:44:45,789 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:44:45,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/twisted.c [2023-02-18 23:44:46,705 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:44:46,897 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:44:46,898 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/twisted.c [2023-02-18 23:44:46,902 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51716e920/7b94804347244112b4336b07c1a21667/FLAG9a479a9fa [2023-02-18 23:44:46,924 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51716e920/7b94804347244112b4336b07c1a21667 [2023-02-18 23:44:46,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:44:46,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:44:46,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:44:46,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:44:46,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:44:46,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:44:46" (1/1) ... [2023-02-18 23:44:46,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eac8e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:46, skipping insertion in model container [2023-02-18 23:44:46,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:44:46" (1/1) ... [2023-02-18 23:44:46,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:44:46,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:44:47,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:44:47,062 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:44:47,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:44:47,084 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:44:47,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47 WrapperNode [2023-02-18 23:44:47,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:44:47,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:44:47,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:44:47,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:44:47,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,107 INFO L138 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2023-02-18 23:44:47,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:44:47,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:44:47,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:44:47,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:44:47,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,124 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:44:47,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:44:47,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:44:47,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:44:47,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (1/1) ... [2023-02-18 23:44:47,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:44:47,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:47,154 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) [2023-02-18 23:44:47,176 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 [2023-02-18 23:44:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:44:47,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:44:47,225 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:44:47,227 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:44:47,342 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:44:47,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:44:47,347 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-18 23:44:47,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:44:47 BoogieIcfgContainer [2023-02-18 23:44:47,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:44:47,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:44:47,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:44:47,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:44:47,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:44:46" (1/3) ... [2023-02-18 23:44:47,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132a285e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:44:47, skipping insertion in model container [2023-02-18 23:44:47,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:47" (2/3) ... [2023-02-18 23:44:47,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@132a285e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:44:47, skipping insertion in model container [2023-02-18 23:44:47,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:44:47" (3/3) ... [2023-02-18 23:44:47,354 INFO L112 eAbstractionObserver]: Analyzing ICFG twisted.c [2023-02-18 23:44:47,364 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:44:47,365 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-18 23:44:47,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:44:47,403 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;@66587421, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:44:47,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-18 23:44:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:44:47,410 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:47,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:44:47,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:47,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:47,416 INFO L85 PathProgramCache]: Analyzing trace with hash 28711221, now seen corresponding path program 1 times [2023-02-18 23:44:47,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:47,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935741743] [2023-02-18 23:44:47,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:47,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:47,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:47,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935741743] [2023-02-18 23:44:47,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935741743] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:47,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:47,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:44:47,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837861195] [2023-02-18 23:44:47,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:47,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 23:44:47,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:47,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 23:44:47,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 23:44:47,521 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:47,540 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2023-02-18 23:44:47,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 23:44:47,543 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 23:44:47,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:47,551 INFO L225 Difference]: With dead ends: 46 [2023-02-18 23:44:47,551 INFO L226 Difference]: Without dead ends: 20 [2023-02-18 23:44:47,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 23:44:47,560 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:47,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:47,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-18 23:44:47,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-18 23:44:47,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-02-18 23:44:47,587 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 5 [2023-02-18 23:44:47,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:47,588 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-02-18 23:44:47,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,588 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-02-18 23:44:47,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:44:47,589 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:47,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:44:47,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:44:47,590 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:47,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:47,591 INFO L85 PathProgramCache]: Analyzing trace with hash 28694852, now seen corresponding path program 1 times [2023-02-18 23:44:47,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:47,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486577254] [2023-02-18 23:44:47,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:47,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:47,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:47,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:47,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486577254] [2023-02-18 23:44:47,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486577254] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:47,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:47,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:44:47,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853100326] [2023-02-18 23:44:47,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:47,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:44:47,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:47,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:44:47,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:44:47,669 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:47,718 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2023-02-18 23:44:47,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:44:47,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 23:44:47,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:47,719 INFO L225 Difference]: With dead ends: 20 [2023-02-18 23:44:47,719 INFO L226 Difference]: Without dead ends: 19 [2023-02-18 23:44:47,719 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 [2023-02-18 23:44:47,720 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:47,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 20 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:47,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-18 23:44:47,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-02-18 23:44:47,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2023-02-18 23:44:47,723 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 5 [2023-02-18 23:44:47,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:47,724 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2023-02-18 23:44:47,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,724 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-02-18 23:44:47,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:44:47,725 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:47,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:44:47,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:44:47,725 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)] === [2023-02-18 23:44:47,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:47,726 INFO L85 PathProgramCache]: Analyzing trace with hash 889540457, now seen corresponding path program 1 times [2023-02-18 23:44:47,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:47,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748682185] [2023-02-18 23:44:47,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:47,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:47,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:47,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748682185] [2023-02-18 23:44:47,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748682185] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:47,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:47,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:44:47,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662554831] [2023-02-18 23:44:47,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:47,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:44:47,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:47,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:44:47,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:44:47,764 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:47,803 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2023-02-18 23:44:47,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:44:47,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 23:44:47,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:47,804 INFO L225 Difference]: With dead ends: 35 [2023-02-18 23:44:47,804 INFO L226 Difference]: Without dead ends: 34 [2023-02-18 23:44:47,804 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 [2023-02-18 23:44:47,805 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:47,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 35 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:47,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-18 23:44:47,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2023-02-18 23:44:47,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.565217391304348) internal successors, (36), 27 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2023-02-18 23:44:47,809 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 6 [2023-02-18 23:44:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:47,809 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2023-02-18 23:44:47,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,810 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-02-18 23:44:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:44:47,810 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:47,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:47,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 23:44:47,810 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:47,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:47,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903811, now seen corresponding path program 1 times [2023-02-18 23:44:47,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:47,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242763223] [2023-02-18 23:44:47,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:47,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:47,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:47,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:47,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242763223] [2023-02-18 23:44:47,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242763223] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:47,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:47,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:44:47,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759100708] [2023-02-18 23:44:47,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:47,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:44:47,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:47,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:44:47,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:44:47,851 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:47,887 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2023-02-18 23:44:47,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:44:47,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 23:44:47,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:47,888 INFO L225 Difference]: With dead ends: 41 [2023-02-18 23:44:47,889 INFO L226 Difference]: Without dead ends: 40 [2023-02-18 23:44:47,889 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 [2023-02-18 23:44:47,890 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:47,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:47,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-18 23:44:47,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2023-02-18 23:44:47,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2023-02-18 23:44:47,896 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 7 [2023-02-18 23:44:47,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:47,896 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2023-02-18 23:44:47,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,896 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2023-02-18 23:44:47,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:44:47,896 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:47,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:47,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:44:47,897 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)] === [2023-02-18 23:44:47,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:47,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1805903861, now seen corresponding path program 1 times [2023-02-18 23:44:47,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:47,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878417329] [2023-02-18 23:44:47,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:47,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:47,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:47,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:47,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878417329] [2023-02-18 23:44:47,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878417329] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:47,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:47,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:44:47,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360843161] [2023-02-18 23:44:47,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:47,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:44:47,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:47,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:44:47,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:44:47,952 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:47,970 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2023-02-18 23:44:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:44:47,971 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 [2023-02-18 23:44:47,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:47,971 INFO L225 Difference]: With dead ends: 33 [2023-02-18 23:44:47,971 INFO L226 Difference]: Without dead ends: 32 [2023-02-18 23:44:47,972 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 [2023-02-18 23:44:47,972 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:47,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:47,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-18 23:44:47,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-18 23:44:47,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:47,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2023-02-18 23:44:47,977 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 7 [2023-02-18 23:44:47,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:47,977 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2023-02-18 23:44:47,978 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) [2023-02-18 23:44:47,978 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2023-02-18 23:44:47,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 23:44:47,978 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:47,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:47,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 23:44:47,979 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:47,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:47,979 INFO L85 PathProgramCache]: Analyzing trace with hash 148443370, now seen corresponding path program 1 times [2023-02-18 23:44:47,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:47,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357306880] [2023-02-18 23:44:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:47,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:48,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:48,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:48,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357306880] [2023-02-18 23:44:48,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357306880] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:48,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:48,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:44:48,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079148000] [2023-02-18 23:44:48,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:48,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:44:48,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:48,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:44:48,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:44:48,020 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:48,050 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2023-02-18 23:44:48,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:44:48,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 23:44:48,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:48,051 INFO L225 Difference]: With dead ends: 39 [2023-02-18 23:44:48,051 INFO L226 Difference]: Without dead ends: 36 [2023-02-18 23:44:48,051 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 [2023-02-18 23:44:48,052 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:48,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 23 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:48,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-18 23:44:48,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2023-02-18 23:44:48,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 30 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2023-02-18 23:44:48,056 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 8 [2023-02-18 23:44:48,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:48,056 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2023-02-18 23:44:48,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,056 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2023-02-18 23:44:48,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 23:44:48,057 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:48,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:48,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 23:44:48,057 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:48,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:48,057 INFO L85 PathProgramCache]: Analyzing trace with hash 148444908, now seen corresponding path program 1 times [2023-02-18 23:44:48,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:48,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202792375] [2023-02-18 23:44:48,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:48,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:48,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:48,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:48,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202792375] [2023-02-18 23:44:48,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202792375] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:48,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:48,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:44:48,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360654497] [2023-02-18 23:44:48,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:48,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:44:48,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:48,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:44:48,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:44:48,099 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:48,131 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2023-02-18 23:44:48,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:44:48,131 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 [2023-02-18 23:44:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:48,132 INFO L225 Difference]: With dead ends: 49 [2023-02-18 23:44:48,132 INFO L226 Difference]: Without dead ends: 48 [2023-02-18 23:44:48,132 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 [2023-02-18 23:44:48,133 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:48,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 40 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:48,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-02-18 23:44:48,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2023-02-18 23:44:48,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2023-02-18 23:44:48,138 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 8 [2023-02-18 23:44:48,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:48,139 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2023-02-18 23:44:48,139 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) [2023-02-18 23:44:48,139 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2023-02-18 23:44:48,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 23:44:48,139 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:48,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:48,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 23:44:48,140 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:48,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:48,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1985747964, now seen corresponding path program 1 times [2023-02-18 23:44:48,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:48,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477469528] [2023-02-18 23:44:48,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:48,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:48,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:48,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:48,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477469528] [2023-02-18 23:44:48,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477469528] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:48,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936358927] [2023-02-18 23:44:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:48,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:48,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:48,195 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) [2023-02-18 23:44:48,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 23:44:48,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:48,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:44:48,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:48,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:48,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:48,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:48,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936358927] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:48,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:48,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-18 23:44:48,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136731868] [2023-02-18 23:44:48,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:48,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 23:44:48,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:48,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 23:44:48,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-18 23:44:48,273 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:48,379 INFO L93 Difference]: Finished difference Result 119 states and 152 transitions. [2023-02-18 23:44:48,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 23:44:48,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 23:44:48,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:48,385 INFO L225 Difference]: With dead ends: 119 [2023-02-18 23:44:48,386 INFO L226 Difference]: Without dead ends: 118 [2023-02-18 23:44:48,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-18 23:44:48,389 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 74 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:48,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 76 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:48,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-02-18 23:44:48,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 78. [2023-02-18 23:44:48,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.4324324324324325) internal successors, (106), 77 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 106 transitions. [2023-02-18 23:44:48,402 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 106 transitions. Word has length 10 [2023-02-18 23:44:48,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:48,402 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 106 transitions. [2023-02-18 23:44:48,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,402 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 106 transitions. [2023-02-18 23:44:48,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 23:44:48,403 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:48,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:48,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:48,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:48,606 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:48,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:48,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1985673441, now seen corresponding path program 1 times [2023-02-18 23:44:48,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:48,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187109987] [2023-02-18 23:44:48,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:48,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:48,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:48,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187109987] [2023-02-18 23:44:48,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187109987] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:48,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:48,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 23:44:48,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231480818] [2023-02-18 23:44:48,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:48,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:44:48,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:48,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:44:48,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:44:48,639 INFO L87 Difference]: Start difference. First operand 78 states and 106 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:48,685 INFO L93 Difference]: Finished difference Result 83 states and 111 transitions. [2023-02-18 23:44:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:44:48,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 23:44:48,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:48,687 INFO L225 Difference]: With dead ends: 83 [2023-02-18 23:44:48,687 INFO L226 Difference]: Without dead ends: 82 [2023-02-18 23:44:48,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-18 23:44:48,688 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:48,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 36 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-02-18 23:44:48,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2023-02-18 23:44:48,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 78 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 107 transitions. [2023-02-18 23:44:48,707 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 107 transitions. Word has length 10 [2023-02-18 23:44:48,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:48,707 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 107 transitions. [2023-02-18 23:44:48,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,707 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 107 transitions. [2023-02-18 23:44:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 23:44:48,708 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:48,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:48,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-18 23:44:48,709 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:48,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:48,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1493993400, now seen corresponding path program 1 times [2023-02-18 23:44:48,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:48,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180247696] [2023-02-18 23:44:48,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:48,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:48,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:48,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:48,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180247696] [2023-02-18 23:44:48,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180247696] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:48,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398610684] [2023-02-18 23:44:48,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:48,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:48,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:48,745 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) [2023-02-18 23:44:48,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 23:44:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:48,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:44:48,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:48,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:48,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 23:44:48,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398610684] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:48,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 23:44:48,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-02-18 23:44:48,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865674930] [2023-02-18 23:44:48,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:48,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:44:48,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:48,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:44:48,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-02-18 23:44:48,786 INFO L87 Difference]: Start difference. First operand 79 states and 107 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:48,828 INFO L93 Difference]: Finished difference Result 95 states and 125 transitions. [2023-02-18 23:44:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:44:48,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-18 23:44:48,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:48,829 INFO L225 Difference]: With dead ends: 95 [2023-02-18 23:44:48,829 INFO L226 Difference]: Without dead ends: 94 [2023-02-18 23:44:48,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-02-18 23:44:48,830 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:48,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 39 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:48,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-02-18 23:44:48,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2023-02-18 23:44:48,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.4285714285714286) internal successors, (120), 87 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2023-02-18 23:44:48,835 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 11 [2023-02-18 23:44:48,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:48,836 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2023-02-18 23:44:48,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:48,836 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2023-02-18 23:44:48,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 23:44:48,836 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:48,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:48,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:49,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-18 23:44:49,041 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:49,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:49,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1426334450, now seen corresponding path program 1 times [2023-02-18 23:44:49,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:49,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037243197] [2023-02-18 23:44:49,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:49,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:49,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:49,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037243197] [2023-02-18 23:44:49,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037243197] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:49,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:49,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 23:44:49,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878392101] [2023-02-18 23:44:49,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:49,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:44:49,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:49,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:44:49,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:44:49,073 INFO L87 Difference]: Start difference. First operand 88 states and 120 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:49,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:49,109 INFO L93 Difference]: Finished difference Result 91 states and 122 transitions. [2023-02-18 23:44:49,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:44:49,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-18 23:44:49,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:49,110 INFO L225 Difference]: With dead ends: 91 [2023-02-18 23:44:49,110 INFO L226 Difference]: Without dead ends: 88 [2023-02-18 23:44:49,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:44:49,111 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:49,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 33 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:49,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-02-18 23:44:49,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2023-02-18 23:44:49,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 87 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:49,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2023-02-18 23:44:49,116 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 11 [2023-02-18 23:44:49,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:49,116 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2023-02-18 23:44:49,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:49,117 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2023-02-18 23:44:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 23:44:49,117 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:49,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:49,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-02-18 23:44:49,118 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:49,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:49,118 INFO L85 PathProgramCache]: Analyzing trace with hash 930844933, now seen corresponding path program 1 times [2023-02-18 23:44:49,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:49,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838775462] [2023-02-18 23:44:49,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:49,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:49,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:49,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838775462] [2023-02-18 23:44:49,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838775462] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:49,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320186525] [2023-02-18 23:44:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:49,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:49,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:49,151 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) [2023-02-18 23:44:49,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 23:44:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:49,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:44:49,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:49,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:49,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320186525] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:49,239 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:49,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-02-18 23:44:49,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591141899] [2023-02-18 23:44:49,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:49,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-18 23:44:49,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:49,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-18 23:44:49,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-02-18 23:44:49,241 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:49,354 INFO L93 Difference]: Finished difference Result 131 states and 171 transitions. [2023-02-18 23:44:49,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 23:44:49,354 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-18 23:44:49,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:49,355 INFO L225 Difference]: With dead ends: 131 [2023-02-18 23:44:49,355 INFO L226 Difference]: Without dead ends: 122 [2023-02-18 23:44:49,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2023-02-18 23:44:49,357 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 55 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:49,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 52 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:49,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-02-18 23:44:49,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 104. [2023-02-18 23:44:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.42) internal successors, (142), 103 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:49,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 142 transitions. [2023-02-18 23:44:49,363 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 142 transitions. Word has length 12 [2023-02-18 23:44:49,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:49,363 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 142 transitions. [2023-02-18 23:44:49,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:49,364 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 142 transitions. [2023-02-18 23:44:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 23:44:49,364 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:49,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:49,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:49,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:49,572 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:49,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:49,572 INFO L85 PathProgramCache]: Analyzing trace with hash 930846471, now seen corresponding path program 1 times [2023-02-18 23:44:49,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:49,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530794420] [2023-02-18 23:44:49,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:49,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:49,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:49,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:49,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530794420] [2023-02-18 23:44:49,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530794420] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:49,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691911452] [2023-02-18 23:44:49,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:49,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:49,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:49,598 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) [2023-02-18 23:44:49,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 23:44:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:49,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:44:49,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:49,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:49,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:49,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691911452] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:49,653 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:49,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-18 23:44:49,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894528993] [2023-02-18 23:44:49,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:49,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-18 23:44:49,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:49,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-18 23:44:49,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-18 23:44:49,657 INFO L87 Difference]: Start difference. First operand 104 states and 142 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:49,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:49,702 INFO L93 Difference]: Finished difference Result 271 states and 375 transitions. [2023-02-18 23:44:49,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 23:44:49,703 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-18 23:44:49,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:49,704 INFO L225 Difference]: With dead ends: 271 [2023-02-18 23:44:49,704 INFO L226 Difference]: Without dead ends: 270 [2023-02-18 23:44:49,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-18 23:44:49,705 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 79 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:49,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 87 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:49,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-02-18 23:44:49,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 251. [2023-02-18 23:44:49,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 247 states have (on average 1.4008097165991902) internal successors, (346), 250 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 346 transitions. [2023-02-18 23:44:49,715 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 346 transitions. Word has length 12 [2023-02-18 23:44:49,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:49,715 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 346 transitions. [2023-02-18 23:44:49,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:49,716 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 346 transitions. [2023-02-18 23:44:49,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-18 23:44:49,716 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:49,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:49,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:49,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:49,921 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:49,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:49,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1772254812, now seen corresponding path program 1 times [2023-02-18 23:44:49,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:49,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798427272] [2023-02-18 23:44:49,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:49,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:49,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:49,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:49,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798427272] [2023-02-18 23:44:49,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798427272] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:49,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:49,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:44:49,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251619987] [2023-02-18 23:44:49,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:49,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:44:49,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:49,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:44:49,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:44:49,940 INFO L87 Difference]: Start difference. First operand 251 states and 346 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:49,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:49,988 INFO L93 Difference]: Finished difference Result 493 states and 680 transitions. [2023-02-18 23:44:49,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:44:49,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-18 23:44:49,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:49,990 INFO L225 Difference]: With dead ends: 493 [2023-02-18 23:44:49,990 INFO L226 Difference]: Without dead ends: 331 [2023-02-18 23:44:49,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:44:49,991 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:49,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 27 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:49,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-02-18 23:44:50,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 310. [2023-02-18 23:44:50,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 306 states have (on average 1.3594771241830066) internal successors, (416), 309 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 416 transitions. [2023-02-18 23:44:50,011 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 416 transitions. Word has length 14 [2023-02-18 23:44:50,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:50,011 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 416 transitions. [2023-02-18 23:44:50,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:50,011 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 416 transitions. [2023-02-18 23:44:50,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 23:44:50,012 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:50,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:50,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-02-18 23:44:50,012 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash 449875085, now seen corresponding path program 1 times [2023-02-18 23:44:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:50,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027650764] [2023-02-18 23:44:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:50,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:50,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027650764] [2023-02-18 23:44:50,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027650764] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:50,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044140865] [2023-02-18 23:44:50,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:50,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:50,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:50,043 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) [2023-02-18 23:44:50,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 23:44:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:50,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 23:44:50,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:50,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 23:44:50,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044140865] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:50,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 23:44:50,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-02-18 23:44:50,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317894993] [2023-02-18 23:44:50,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:50,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 23:44:50,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:50,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 23:44:50,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:44:50,099 INFO L87 Difference]: Start difference. First operand 310 states and 416 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 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) [2023-02-18 23:44:50,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:50,201 INFO L93 Difference]: Finished difference Result 526 states and 709 transitions. [2023-02-18 23:44:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 23:44:50,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 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) Word has length 15 [2023-02-18 23:44:50,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:50,203 INFO L225 Difference]: With dead ends: 526 [2023-02-18 23:44:50,203 INFO L226 Difference]: Without dead ends: 525 [2023-02-18 23:44:50,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-02-18 23:44:50,204 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 34 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:50,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 39 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:50,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-02-18 23:44:50,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 517. [2023-02-18 23:44:50,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 513 states have (on average 1.3723196881091617) internal successors, (704), 516 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:50,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 704 transitions. [2023-02-18 23:44:50,233 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 704 transitions. Word has length 15 [2023-02-18 23:44:50,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:50,234 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 704 transitions. [2023-02-18 23:44:50,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 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) [2023-02-18 23:44:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 704 transitions. [2023-02-18 23:44:50,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 23:44:50,234 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:50,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:50,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:50,439 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,SelfDestructingSolverStorable14 [2023-02-18 23:44:50,439 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)] === [2023-02-18 23:44:50,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:50,439 INFO L85 PathProgramCache]: Analyzing trace with hash 517534035, now seen corresponding path program 1 times [2023-02-18 23:44:50,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:50,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877099651] [2023-02-18 23:44:50,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:50,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:50,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:50,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877099651] [2023-02-18 23:44:50,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877099651] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:50,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811631314] [2023-02-18 23:44:50,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:50,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:50,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:50,479 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) [2023-02-18 23:44:50,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 23:44:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:50,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 23:44:50,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:50,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:50,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:50,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811631314] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:50,552 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:50,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-02-18 23:44:50,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790634832] [2023-02-18 23:44:50,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:50,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-18 23:44:50,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:50,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-18 23:44:50,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-02-18 23:44:50,554 INFO L87 Difference]: Start difference. First operand 517 states and 704 transitions. Second operand has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:50,622 INFO L93 Difference]: Finished difference Result 532 states and 720 transitions. [2023-02-18 23:44:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 23:44:50,622 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-18 23:44:50,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:50,624 INFO L225 Difference]: With dead ends: 532 [2023-02-18 23:44:50,624 INFO L226 Difference]: Without dead ends: 525 [2023-02-18 23:44:50,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2023-02-18 23:44:50,625 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 55 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:50,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 39 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:50,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-02-18 23:44:50,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 521. [2023-02-18 23:44:50,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 517 states have (on average 1.3655705996131529) internal successors, (706), 520 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 706 transitions. [2023-02-18 23:44:50,653 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 706 transitions. Word has length 15 [2023-02-18 23:44:50,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:50,653 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 706 transitions. [2023-02-18 23:44:50,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.6875) internal successors, (43), 17 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:50,653 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 706 transitions. [2023-02-18 23:44:50,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 23:44:50,654 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:50,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:50,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:50,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-18 23:44:50,859 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:50,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1061225824, now seen corresponding path program 1 times [2023-02-18 23:44:50,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:50,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888016145] [2023-02-18 23:44:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:50,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:50,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:50,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:50,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888016145] [2023-02-18 23:44:50,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888016145] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:50,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931891682] [2023-02-18 23:44:50,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:50,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:50,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:50,906 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) [2023-02-18 23:44:50,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 23:44:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:50,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 23:44:50,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:50,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:50,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:50,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931891682] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:50,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:50,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2023-02-18 23:44:50,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702090532] [2023-02-18 23:44:50,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:50,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-18 23:44:50,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:50,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-18 23:44:50,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-02-18 23:44:50,999 INFO L87 Difference]: Start difference. First operand 521 states and 706 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:51,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:51,164 INFO L93 Difference]: Finished difference Result 635 states and 850 transitions. [2023-02-18 23:44:51,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-02-18 23:44:51,165 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-18 23:44:51,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:51,167 INFO L225 Difference]: With dead ends: 635 [2023-02-18 23:44:51,167 INFO L226 Difference]: Without dead ends: 624 [2023-02-18 23:44:51,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2023-02-18 23:44:51,168 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 65 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:51,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 60 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:51,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-02-18 23:44:51,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 580. [2023-02-18 23:44:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 576 states have (on average 1.3524305555555556) internal successors, (779), 579 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:51,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 779 transitions. [2023-02-18 23:44:51,200 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 779 transitions. Word has length 16 [2023-02-18 23:44:51,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:51,200 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 779 transitions. [2023-02-18 23:44:51,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:51,201 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 779 transitions. [2023-02-18 23:44:51,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 23:44:51,201 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:51,201 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:51,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:51,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:51,407 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:51,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:51,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1239822903, now seen corresponding path program 1 times [2023-02-18 23:44:51,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:51,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873716138] [2023-02-18 23:44:51,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:51,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:51,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:51,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873716138] [2023-02-18 23:44:51,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873716138] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:51,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:51,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:44:51,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524765523] [2023-02-18 23:44:51,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:51,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:44:51,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:51,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:44:51,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:44:51,432 INFO L87 Difference]: Start difference. First operand 580 states and 779 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:51,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:51,475 INFO L93 Difference]: Finished difference Result 900 states and 1205 transitions. [2023-02-18 23:44:51,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:44:51,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-18 23:44:51,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:51,478 INFO L225 Difference]: With dead ends: 900 [2023-02-18 23:44:51,478 INFO L226 Difference]: Without dead ends: 434 [2023-02-18 23:44:51,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:44:51,482 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 27 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 [2023-02-18 23:44:51,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 27 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:51,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-02-18 23:44:51,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 309. [2023-02-18 23:44:51,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 306 states have (on average 1.2941176470588236) internal successors, (396), 308 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:51,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 396 transitions. [2023-02-18 23:44:51,502 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 396 transitions. Word has length 17 [2023-02-18 23:44:51,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:51,502 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 396 transitions. [2023-02-18 23:44:51,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:51,503 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 396 transitions. [2023-02-18 23:44:51,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 23:44:51,503 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:51,504 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:51,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-02-18 23:44:51,504 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)] === [2023-02-18 23:44:51,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:51,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1021728234, now seen corresponding path program 2 times [2023-02-18 23:44:51,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:51,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718009566] [2023-02-18 23:44:51,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:51,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:51,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:51,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718009566] [2023-02-18 23:44:51,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718009566] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:51,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458651456] [2023-02-18 23:44:51,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:44:51,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:51,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:51,618 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) [2023-02-18 23:44:51,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 23:44:51,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:44:51,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:51,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 23:44:51,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:51,713 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:51,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:51,814 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:51,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458651456] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:51,815 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:51,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2023-02-18 23:44:51,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609961350] [2023-02-18 23:44:51,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:51,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-02-18 23:44:51,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:51,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-02-18 23:44:51,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2023-02-18 23:44:51,816 INFO L87 Difference]: Start difference. First operand 309 states and 396 transitions. Second operand has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:52,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:52,066 INFO L93 Difference]: Finished difference Result 435 states and 547 transitions. [2023-02-18 23:44:52,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-18 23:44:52,067 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-02-18 23:44:52,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:52,068 INFO L225 Difference]: With dead ends: 435 [2023-02-18 23:44:52,068 INFO L226 Difference]: Without dead ends: 422 [2023-02-18 23:44:52,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2023-02-18 23:44:52,069 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 161 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:52,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 69 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:52,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-02-18 23:44:52,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 395. [2023-02-18 23:44:52,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 392 states have (on average 1.2627551020408163) internal successors, (495), 394 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:52,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 495 transitions. [2023-02-18 23:44:52,092 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 495 transitions. Word has length 24 [2023-02-18 23:44:52,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:52,093 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 495 transitions. [2023-02-18 23:44:52,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.5) internal successors, (70), 29 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:52,093 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 495 transitions. [2023-02-18 23:44:52,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-18 23:44:52,093 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:52,093 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:52,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:52,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:52,300 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:52,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:52,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1838398870, now seen corresponding path program 3 times [2023-02-18 23:44:52,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:52,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289290783] [2023-02-18 23:44:52,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:52,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,377 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:52,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:52,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289290783] [2023-02-18 23:44:52,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289290783] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:52,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465770533] [2023-02-18 23:44:52,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:44:52,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:52,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:52,392 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) [2023-02-18 23:44:52,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 23:44:52,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-18 23:44:52,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:52,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-18 23:44:52,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:52,476 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 23:44:52,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:52,634 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 23:44:52,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465770533] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:52,634 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:52,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 7] total 23 [2023-02-18 23:44:52,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451558944] [2023-02-18 23:44:52,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:52,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-18 23:44:52,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:52,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-18 23:44:52,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2023-02-18 23:44:52,636 INFO L87 Difference]: Start difference. First operand 395 states and 495 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:53,239 INFO L93 Difference]: Finished difference Result 597 states and 747 transitions. [2023-02-18 23:44:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-02-18 23:44:53,239 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-02-18 23:44:53,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:53,241 INFO L225 Difference]: With dead ends: 597 [2023-02-18 23:44:53,241 INFO L226 Difference]: Without dead ends: 440 [2023-02-18 23:44:53,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=672, Invalid=2190, Unknown=0, NotChecked=0, Total=2862 [2023-02-18 23:44:53,242 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 249 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:53,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 100 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:44:53,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-02-18 23:44:53,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 391. [2023-02-18 23:44:53,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 388 states have (on average 1.268041237113402) internal successors, (492), 390 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:53,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 492 transitions. [2023-02-18 23:44:53,283 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 492 transitions. Word has length 24 [2023-02-18 23:44:53,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:53,283 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 492 transitions. [2023-02-18 23:44:53,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:53,283 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 492 transitions. [2023-02-18 23:44:53,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-18 23:44:53,285 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:53,285 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:53,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:53,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:53,490 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)] === [2023-02-18 23:44:53,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:53,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1077131827, now seen corresponding path program 1 times [2023-02-18 23:44:53,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:53,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132412931] [2023-02-18 23:44:53,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:53,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:53,547 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 23:44:53,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:53,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132412931] [2023-02-18 23:44:53,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132412931] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:53,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285389028] [2023-02-18 23:44:53,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:53,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:53,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:53,549 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) [2023-02-18 23:44:53,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 23:44:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:53,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 23:44:53,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 23:44:53,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:53,666 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 23:44:53,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285389028] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:53,666 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:53,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2023-02-18 23:44:53,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653222276] [2023-02-18 23:44:53,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:53,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-18 23:44:53,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:53,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-18 23:44:53,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-02-18 23:44:53,668 INFO L87 Difference]: Start difference. First operand 391 states and 492 transitions. Second operand has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:53,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:53,857 INFO L93 Difference]: Finished difference Result 877 states and 1155 transitions. [2023-02-18 23:44:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-18 23:44:53,858 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-02-18 23:44:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:53,861 INFO L225 Difference]: With dead ends: 877 [2023-02-18 23:44:53,861 INFO L226 Difference]: Without dead ends: 876 [2023-02-18 23:44:53,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2023-02-18 23:44:53,862 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 240 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:53,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 152 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:53,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2023-02-18 23:44:53,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 841. [2023-02-18 23:44:53,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 838 states have (on average 1.298329355608592) internal successors, (1088), 840 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:53,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1088 transitions. [2023-02-18 23:44:53,931 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1088 transitions. Word has length 28 [2023-02-18 23:44:53,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:53,931 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1088 transitions. [2023-02-18 23:44:53,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.619047619047619) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:53,932 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1088 transitions. [2023-02-18 23:44:53,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 23:44:53,932 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:53,932 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:53,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:54,137 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,SelfDestructingSolverStorable20 [2023-02-18 23:44:54,137 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)] === [2023-02-18 23:44:54,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:54,137 INFO L85 PathProgramCache]: Analyzing trace with hash -330995228, now seen corresponding path program 1 times [2023-02-18 23:44:54,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:54,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628001020] [2023-02-18 23:44:54,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:54,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:54,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:54,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628001020] [2023-02-18 23:44:54,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628001020] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:54,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235517864] [2023-02-18 23:44:54,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:54,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:54,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:54,222 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) [2023-02-18 23:44:54,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 23:44:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:54,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-18 23:44:54,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:54,325 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:54,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:54,450 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:54,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235517864] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:54,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:54,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2023-02-18 23:44:54,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913774201] [2023-02-18 23:44:54,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:54,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-02-18 23:44:54,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:54,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-02-18 23:44:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=922, Unknown=0, NotChecked=0, Total=1190 [2023-02-18 23:44:54,452 INFO L87 Difference]: Start difference. First operand 841 states and 1088 transitions. Second operand has 35 states, 34 states have (on average 2.5) internal successors, (85), 35 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:54,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:54,969 INFO L93 Difference]: Finished difference Result 1001 states and 1280 transitions. [2023-02-18 23:44:54,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-18 23:44:54,970 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.5) internal successors, (85), 35 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-02-18 23:44:54,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:54,972 INFO L225 Difference]: With dead ends: 1001 [2023-02-18 23:44:54,972 INFO L226 Difference]: Without dead ends: 984 [2023-02-18 23:44:54,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1347 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=991, Invalid=3431, Unknown=0, NotChecked=0, Total=4422 [2023-02-18 23:44:54,974 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 247 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:54,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 79 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:44:54,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2023-02-18 23:44:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 881. [2023-02-18 23:44:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 878 states have (on average 1.29498861047836) internal successors, (1137), 880 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:55,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1137 transitions. [2023-02-18 23:44:55,043 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1137 transitions. Word has length 29 [2023-02-18 23:44:55,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:55,043 INFO L495 AbstractCegarLoop]: Abstraction has 881 states and 1137 transitions. [2023-02-18 23:44:55,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.5) internal successors, (85), 35 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:55,043 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1137 transitions. [2023-02-18 23:44:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 23:44:55,044 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:55,044 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:55,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-18 23:44:55,248 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,SelfDestructingSolverStorable21 [2023-02-18 23:44:55,249 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:55,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash -900361078, now seen corresponding path program 1 times [2023-02-18 23:44:55,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:55,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360939442] [2023-02-18 23:44:55,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:55,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:55,351 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:55,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:55,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360939442] [2023-02-18 23:44:55,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360939442] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:55,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337864951] [2023-02-18 23:44:55,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:55,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:55,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:55,353 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) [2023-02-18 23:44:55,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 23:44:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:55,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-18 23:44:55,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:55,482 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:55,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:55,624 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:55,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337864951] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:55,624 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:55,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 40 [2023-02-18 23:44:55,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126220986] [2023-02-18 23:44:55,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:55,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-02-18 23:44:55,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:55,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-02-18 23:44:55,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=334, Invalid=1306, Unknown=0, NotChecked=0, Total=1640 [2023-02-18 23:44:55,626 INFO L87 Difference]: Start difference. First operand 881 states and 1137 transitions. Second operand has 41 states, 40 states have (on average 2.5) internal successors, (100), 41 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:56,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:56,239 INFO L93 Difference]: Finished difference Result 1393 states and 1752 transitions. [2023-02-18 23:44:56,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-02-18 23:44:56,239 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.5) internal successors, (100), 41 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-02-18 23:44:56,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:56,243 INFO L225 Difference]: With dead ends: 1393 [2023-02-18 23:44:56,243 INFO L226 Difference]: Without dead ends: 1378 [2023-02-18 23:44:56,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2081 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1447, Invalid=5033, Unknown=0, NotChecked=0, Total=6480 [2023-02-18 23:44:56,245 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 289 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:56,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 89 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:44:56,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2023-02-18 23:44:56,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1096. [2023-02-18 23:44:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1093 states have (on average 1.2854528819762123) internal successors, (1405), 1095 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:56,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1405 transitions. [2023-02-18 23:44:56,342 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1405 transitions. Word has length 34 [2023-02-18 23:44:56,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:56,343 INFO L495 AbstractCegarLoop]: Abstraction has 1096 states and 1405 transitions. [2023-02-18 23:44:56,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.5) internal successors, (100), 41 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1405 transitions. [2023-02-18 23:44:56,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 23:44:56,343 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:56,343 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-02-18 23:44:56,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:56,548 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,SelfDestructingSolverStorable22 [2023-02-18 23:44:56,548 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:56,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:56,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1099490695, now seen corresponding path program 1 times [2023-02-18 23:44:56,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:56,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259714992] [2023-02-18 23:44:56,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:56,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:56,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:56,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259714992] [2023-02-18 23:44:56,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259714992] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:56,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254957177] [2023-02-18 23:44:56,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:56,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:56,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:56,607 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) [2023-02-18 23:44:56,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-18 23:44:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:56,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 23:44:56,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:56,654 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:56,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:56,731 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:56,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254957177] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:56,732 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:56,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2023-02-18 23:44:56,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993071200] [2023-02-18 23:44:56,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:56,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-18 23:44:56,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:56,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-18 23:44:56,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-02-18 23:44:56,733 INFO L87 Difference]: Start difference. First operand 1096 states and 1405 transitions. Second operand has 22 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 22 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) [2023-02-18 23:44:57,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:57,108 INFO L93 Difference]: Finished difference Result 2838 states and 3636 transitions. [2023-02-18 23:44:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-18 23:44:57,109 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 22 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-02-18 23:44:57,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:57,116 INFO L225 Difference]: With dead ends: 2838 [2023-02-18 23:44:57,116 INFO L226 Difference]: Without dead ends: 2837 [2023-02-18 23:44:57,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2023-02-18 23:44:57,118 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 160 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:57,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 133 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:57,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2023-02-18 23:44:57,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 1495. [2023-02-18 23:44:57,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1492 states have (on average 1.3096514745308312) internal successors, (1954), 1494 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:57,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1954 transitions. [2023-02-18 23:44:57,254 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1954 transitions. Word has length 34 [2023-02-18 23:44:57,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:57,254 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 1954 transitions. [2023-02-18 23:44:57,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 22 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) [2023-02-18 23:44:57,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1954 transitions. [2023-02-18 23:44:57,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-02-18 23:44:57,255 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:57,255 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:57,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:57,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-02-18 23:44:57,460 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:57,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:57,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1530537373, now seen corresponding path program 4 times [2023-02-18 23:44:57,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:57,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141133548] [2023-02-18 23:44:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:57,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:57,651 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:57,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:57,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141133548] [2023-02-18 23:44:57,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141133548] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:57,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478304599] [2023-02-18 23:44:57,652 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:44:57,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:57,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:57,653 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) [2023-02-18 23:44:57,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-18 23:44:57,684 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:44:57,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:57,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-18 23:44:57,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:57,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:58,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478304599] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:58,119 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:58,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2023-02-18 23:44:58,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605337339] [2023-02-18 23:44:58,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:58,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-02-18 23:44:58,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:58,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-02-18 23:44:58,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=756, Invalid=2666, Unknown=0, NotChecked=0, Total=3422 [2023-02-18 23:44:58,121 INFO L87 Difference]: Start difference. First operand 1495 states and 1954 transitions. Second operand has 59 states, 58 states have (on average 2.2413793103448274) internal successors, (130), 59 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:58,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:58,886 INFO L93 Difference]: Finished difference Result 1845 states and 2357 transitions. [2023-02-18 23:44:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-02-18 23:44:58,887 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.2413793103448274) internal successors, (130), 59 states have internal predecessors, (130), 0 states have call successors, (0), 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 44 [2023-02-18 23:44:58,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:58,891 INFO L225 Difference]: With dead ends: 1845 [2023-02-18 23:44:58,891 INFO L226 Difference]: Without dead ends: 1822 [2023-02-18 23:44:58,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3186 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=2377, Invalid=6935, Unknown=0, NotChecked=0, Total=9312 [2023-02-18 23:44:58,893 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 434 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:58,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 120 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:44:58,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2023-02-18 23:44:59,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1802. [2023-02-18 23:44:59,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1799 states have (on average 1.2762645914396886) internal successors, (2296), 1801 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:59,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2296 transitions. [2023-02-18 23:44:59,038 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2296 transitions. Word has length 44 [2023-02-18 23:44:59,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:59,038 INFO L495 AbstractCegarLoop]: Abstraction has 1802 states and 2296 transitions. [2023-02-18 23:44:59,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.2413793103448274) internal successors, (130), 59 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:59,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2296 transitions. [2023-02-18 23:44:59,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-18 23:44:59,043 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:59,043 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:59,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-02-18 23:44:59,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:59,248 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:59,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:59,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1280922085, now seen corresponding path program 2 times [2023-02-18 23:44:59,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:59,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916013281] [2023-02-18 23:44:59,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:59,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:59,422 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:59,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:59,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916013281] [2023-02-18 23:44:59,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916013281] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:59,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917610000] [2023-02-18 23:44:59,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:44:59,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:59,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:59,424 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) [2023-02-18 23:44:59,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-18 23:44:59,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:44:59,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:59,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-18 23:44:59,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:59,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:59,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917610000] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:59,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:59,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2023-02-18 23:44:59,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449479099] [2023-02-18 23:44:59,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:59,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-02-18 23:44:59,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:59,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-02-18 23:44:59,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=660, Invalid=2762, Unknown=0, NotChecked=0, Total=3422 [2023-02-18 23:44:59,888 INFO L87 Difference]: Start difference. First operand 1802 states and 2296 transitions. Second operand has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:01,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:01,039 INFO L93 Difference]: Finished difference Result 2720 states and 3388 transitions. [2023-02-18 23:45:01,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2023-02-18 23:45:01,040 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-02-18 23:45:01,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:01,045 INFO L225 Difference]: With dead ends: 2720 [2023-02-18 23:45:01,045 INFO L226 Difference]: Without dead ends: 2689 [2023-02-18 23:45:01,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4819 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=3109, Invalid=10933, Unknown=0, NotChecked=0, Total=14042 [2023-02-18 23:45:01,048 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 505 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:01,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 126 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:45:01,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2023-02-18 23:45:01,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 1731. [2023-02-18 23:45:01,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1728 states have (on average 1.2841435185185186) internal successors, (2219), 1730 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:01,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2219 transitions. [2023-02-18 23:45:01,189 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2219 transitions. Word has length 46 [2023-02-18 23:45:01,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:01,189 INFO L495 AbstractCegarLoop]: Abstraction has 1731 states and 2219 transitions. [2023-02-18 23:45:01,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.3448275862068964) internal successors, (136), 59 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2219 transitions. [2023-02-18 23:45:01,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-02-18 23:45:01,190 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:01,190 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-18 23:45:01,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:01,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-02-18 23:45:01,393 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:01,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:01,393 INFO L85 PathProgramCache]: Analyzing trace with hash -864116673, now seen corresponding path program 2 times [2023-02-18 23:45:01,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:01,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44324695] [2023-02-18 23:45:01,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:01,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:01,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:01,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44324695] [2023-02-18 23:45:01,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44324695] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:01,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768420657] [2023-02-18 23:45:01,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:45:01,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:01,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:01,585 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) [2023-02-18 23:45:01,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-18 23:45:01,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:45:01,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:01,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-18 23:45:01,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:01,831 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:01,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:02,132 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:02,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768420657] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:02,132 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:02,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 64 [2023-02-18 23:45:02,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708169484] [2023-02-18 23:45:02,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:02,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2023-02-18 23:45:02,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:02,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2023-02-18 23:45:02,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=862, Invalid=3298, Unknown=0, NotChecked=0, Total=4160 [2023-02-18 23:45:02,135 INFO L87 Difference]: Start difference. First operand 1731 states and 2219 transitions. Second operand has 65 states, 64 states have (on average 2.359375) internal successors, (151), 65 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:02,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:02,907 INFO L93 Difference]: Finished difference Result 2602 states and 3266 transitions. [2023-02-18 23:45:02,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-02-18 23:45:02,907 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.359375) internal successors, (151), 65 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-02-18 23:45:02,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:02,914 INFO L225 Difference]: With dead ends: 2602 [2023-02-18 23:45:02,914 INFO L226 Difference]: Without dead ends: 2581 [2023-02-18 23:45:02,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3420 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=2093, Invalid=7609, Unknown=0, NotChecked=0, Total=9702 [2023-02-18 23:45:02,915 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 371 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:02,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 115 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:45:02,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2023-02-18 23:45:03,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 2067. [2023-02-18 23:45:03,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2067 states, 2064 states have (on average 1.2926356589147288) internal successors, (2668), 2066 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:03,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 2668 transitions. [2023-02-18 23:45:03,080 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 2668 transitions. Word has length 51 [2023-02-18 23:45:03,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:03,080 INFO L495 AbstractCegarLoop]: Abstraction has 2067 states and 2668 transitions. [2023-02-18 23:45:03,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.359375) internal successors, (151), 65 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:03,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 2668 transitions. [2023-02-18 23:45:03,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-18 23:45:03,082 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:03,082 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:03,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:03,286 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,SelfDestructingSolverStorable26 [2023-02-18 23:45:03,287 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:03,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:03,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1203682475, now seen corresponding path program 2 times [2023-02-18 23:45:03,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:03,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549631252] [2023-02-18 23:45:03,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:03,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 23:45:03,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:03,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549631252] [2023-02-18 23:45:03,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549631252] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:03,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300367409] [2023-02-18 23:45:03,477 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:45:03,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:03,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:03,478 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) [2023-02-18 23:45:03,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-18 23:45:03,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-18 23:45:03,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:03,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:45:03,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:03,521 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-02-18 23:45:03,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-02-18 23:45:03,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300367409] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:03,546 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:03,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 3, 3] total 25 [2023-02-18 23:45:03,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188883309] [2023-02-18 23:45:03,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:03,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-18 23:45:03,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:03,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-18 23:45:03,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2023-02-18 23:45:03,547 INFO L87 Difference]: Start difference. First operand 2067 states and 2668 transitions. Second operand has 26 states, 25 states have (on average 2.68) internal successors, (67), 26 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) [2023-02-18 23:45:03,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:03,992 INFO L93 Difference]: Finished difference Result 2240 states and 2882 transitions. [2023-02-18 23:45:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-18 23:45:03,993 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.68) internal successors, (67), 26 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-02-18 23:45:03,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:03,998 INFO L225 Difference]: With dead ends: 2240 [2023-02-18 23:45:03,998 INFO L226 Difference]: Without dead ends: 2239 [2023-02-18 23:45:03,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=636, Invalid=1716, Unknown=0, NotChecked=0, Total=2352 [2023-02-18 23:45:03,999 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 325 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:03,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 161 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:45:04,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2023-02-18 23:45:04,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 838. [2023-02-18 23:45:04,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 836 states have (on average 1.2727272727272727) internal successors, (1064), 837 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:04,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1064 transitions. [2023-02-18 23:45:04,098 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1064 transitions. Word has length 52 [2023-02-18 23:45:04,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:04,098 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 1064 transitions. [2023-02-18 23:45:04,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.68) internal successors, (67), 26 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) [2023-02-18 23:45:04,098 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1064 transitions. [2023-02-18 23:45:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-18 23:45:04,099 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:04,099 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2023-02-18 23:45:04,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:04,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-02-18 23:45:04,300 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:04,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:04,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2049804678, now seen corresponding path program 3 times [2023-02-18 23:45:04,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:04,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078760982] [2023-02-18 23:45:04,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:04,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:04,547 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:04,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:04,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078760982] [2023-02-18 23:45:04,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078760982] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:04,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149385895] [2023-02-18 23:45:04,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:45:04,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:04,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:04,549 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) [2023-02-18 23:45:04,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-18 23:45:04,578 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-02-18 23:45:04,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:04,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-18 23:45:04,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:04,712 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 4 proven. 43 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-02-18 23:45:04,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:05,069 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-02-18 23:45:05,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149385895] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:05,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:05,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 8, 8] total 37 [2023-02-18 23:45:05,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303255611] [2023-02-18 23:45:05,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:05,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-02-18 23:45:05,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:05,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-02-18 23:45:05,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1177, Unknown=0, NotChecked=0, Total=1406 [2023-02-18 23:45:05,070 INFO L87 Difference]: Start difference. First operand 838 states and 1064 transitions. Second operand has 38 states, 37 states have (on average 2.675675675675676) internal successors, (99), 38 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:07,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:07,877 INFO L93 Difference]: Finished difference Result 1806 states and 2174 transitions. [2023-02-18 23:45:07,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-02-18 23:45:07,877 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.675675675675676) internal successors, (99), 38 states have internal predecessors, (99), 0 states have call successors, (0), 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 57 [2023-02-18 23:45:07,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:07,881 INFO L225 Difference]: With dead ends: 1806 [2023-02-18 23:45:07,881 INFO L226 Difference]: Without dead ends: 1648 [2023-02-18 23:45:07,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5997 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3595, Invalid=14765, Unknown=0, NotChecked=0, Total=18360 [2023-02-18 23:45:07,883 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 674 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:07,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 96 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 23:45:07,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2023-02-18 23:45:08,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 915. [2023-02-18 23:45:08,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 913 states have (on average 1.2453450164293538) internal successors, (1137), 914 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:08,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1137 transitions. [2023-02-18 23:45:08,002 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1137 transitions. Word has length 57 [2023-02-18 23:45:08,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:08,003 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1137 transitions. [2023-02-18 23:45:08,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.675675675675676) internal successors, (99), 38 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:08,003 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1137 transitions. [2023-02-18 23:45:08,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-18 23:45:08,005 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:08,005 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:08,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:08,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-02-18 23:45:08,206 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:08,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:08,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1469286131, now seen corresponding path program 1 times [2023-02-18 23:45:08,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:08,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785811888] [2023-02-18 23:45:08,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:08,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:08,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:08,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785811888] [2023-02-18 23:45:08,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785811888] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:08,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379306439] [2023-02-18 23:45:08,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:08,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:08,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:08,419 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:08,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-18 23:45:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:08,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-18 23:45:08,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:08,697 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:08,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:09,084 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:09,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379306439] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:09,084 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:09,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2023-02-18 23:45:09,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572690489] [2023-02-18 23:45:09,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:09,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-02-18 23:45:09,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:09,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-02-18 23:45:09,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=984, Invalid=3986, Unknown=0, NotChecked=0, Total=4970 [2023-02-18 23:45:09,089 INFO L87 Difference]: Start difference. First operand 915 states and 1137 transitions. Second operand has 71 states, 70 states have (on average 2.4571428571428573) internal successors, (172), 71 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) [2023-02-18 23:45:10,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:10,726 INFO L93 Difference]: Finished difference Result 2398 states and 2939 transitions. [2023-02-18 23:45:10,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-02-18 23:45:10,727 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 2.4571428571428573) internal successors, (172), 71 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) Word has length 58 [2023-02-18 23:45:10,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:10,732 INFO L225 Difference]: With dead ends: 2398 [2023-02-18 23:45:10,733 INFO L226 Difference]: Without dead ends: 2359 [2023-02-18 23:45:10,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8062 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=4599, Invalid=17453, Unknown=0, NotChecked=0, Total=22052 [2023-02-18 23:45:10,734 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 540 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:10,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 129 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:45:10,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2359 states. [2023-02-18 23:45:10,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2359 to 1143. [2023-02-18 23:45:10,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1141 states have (on average 1.2489044697633656) internal successors, (1425), 1142 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:10,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1425 transitions. [2023-02-18 23:45:10,922 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1425 transitions. Word has length 58 [2023-02-18 23:45:10,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:10,923 INFO L495 AbstractCegarLoop]: Abstraction has 1143 states and 1425 transitions. [2023-02-18 23:45:10,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 2.4571428571428573) internal successors, (172), 71 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) [2023-02-18 23:45:10,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1425 transitions. [2023-02-18 23:45:10,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-02-18 23:45:10,924 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:10,925 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:10,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:11,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:11,130 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:11,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:11,130 INFO L85 PathProgramCache]: Analyzing trace with hash -863864982, now seen corresponding path program 3 times [2023-02-18 23:45:11,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:11,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66765617] [2023-02-18 23:45:11,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:11,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:11,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:11,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66765617] [2023-02-18 23:45:11,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66765617] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:11,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357375539] [2023-02-18 23:45:11,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:45:11,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:11,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:11,385 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:11,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-18 23:45:11,423 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-02-18 23:45:11,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:11,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 20 conjunts are in the unsatisfiable core [2023-02-18 23:45:11,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:11,503 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 48 proven. 13 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-02-18 23:45:11,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:11,768 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-02-18 23:45:11,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357375539] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:11,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:11,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 9, 12] total 45 [2023-02-18 23:45:11,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968775077] [2023-02-18 23:45:11,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:11,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-02-18 23:45:11,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:11,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-02-18 23:45:11,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=1749, Unknown=0, NotChecked=0, Total=1980 [2023-02-18 23:45:11,770 INFO L87 Difference]: Start difference. First operand 1143 states and 1425 transitions. Second operand has 45 states, 45 states have (on average 3.022222222222222) internal successors, (136), 45 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:13,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:13,699 INFO L93 Difference]: Finished difference Result 2105 states and 2506 transitions. [2023-02-18 23:45:13,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-02-18 23:45:13,700 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.022222222222222) internal successors, (136), 45 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-02-18 23:45:13,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:13,701 INFO L225 Difference]: With dead ends: 2105 [2023-02-18 23:45:13,702 INFO L226 Difference]: Without dead ends: 739 [2023-02-18 23:45:13,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3165 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1435, Invalid=11447, Unknown=0, NotChecked=0, Total=12882 [2023-02-18 23:45:13,705 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 500 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1498 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:13,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 382 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 23:45:13,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2023-02-18 23:45:13,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 525. [2023-02-18 23:45:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 523 states have (on average 1.1376673040152965) internal successors, (595), 524 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 595 transitions. [2023-02-18 23:45:13,812 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 595 transitions. Word has length 60 [2023-02-18 23:45:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:13,812 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 595 transitions. [2023-02-18 23:45:13,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.022222222222222) internal successors, (136), 45 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:13,812 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 595 transitions. [2023-02-18 23:45:13,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-02-18 23:45:13,813 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:13,813 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:13,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:14,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-02-18 23:45:14,018 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:14,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash -2047235643, now seen corresponding path program 4 times [2023-02-18 23:45:14,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:14,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203593123] [2023-02-18 23:45:14,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:14,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:14,290 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:14,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:14,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203593123] [2023-02-18 23:45:14,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203593123] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:14,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942840477] [2023-02-18 23:45:14,291 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:45:14,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:14,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:14,292 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:14,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-18 23:45:14,326 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:45:14,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:14,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-18 23:45:14,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:14,646 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:14,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:15,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942840477] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:15,107 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:15,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 82 [2023-02-18 23:45:15,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938615108] [2023-02-18 23:45:15,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:15,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2023-02-18 23:45:15,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:15,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2023-02-18 23:45:15,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1276, Invalid=5530, Unknown=0, NotChecked=0, Total=6806 [2023-02-18 23:45:15,110 INFO L87 Difference]: Start difference. First operand 525 states and 595 transitions. Second operand has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:16,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:16,353 INFO L93 Difference]: Finished difference Result 1038 states and 1143 transitions. [2023-02-18 23:45:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-02-18 23:45:16,355 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-02-18 23:45:16,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:16,357 INFO L225 Difference]: With dead ends: 1038 [2023-02-18 23:45:16,357 INFO L226 Difference]: Without dead ends: 1019 [2023-02-18 23:45:16,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7520 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=4411, Invalid=16181, Unknown=0, NotChecked=0, Total=20592 [2023-02-18 23:45:16,359 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 591 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:16,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 138 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:45:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2023-02-18 23:45:16,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 600. [2023-02-18 23:45:16,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 598 states have (on average 1.12876254180602) internal successors, (675), 599 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 675 transitions. [2023-02-18 23:45:16,534 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 675 transitions. Word has length 64 [2023-02-18 23:45:16,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:16,534 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 675 transitions. [2023-02-18 23:45:16,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 2.317073170731707) internal successors, (190), 83 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 675 transitions. [2023-02-18 23:45:16,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-02-18 23:45:16,535 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:16,535 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 6, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2023-02-18 23:45:16,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:16,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:16,737 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:16,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:16,737 INFO L85 PathProgramCache]: Analyzing trace with hash 62712667, now seen corresponding path program 2 times [2023-02-18 23:45:16,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:16,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482904819] [2023-02-18 23:45:16,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:16,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:16,931 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:16,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:16,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482904819] [2023-02-18 23:45:16,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482904819] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:16,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685874151] [2023-02-18 23:45:16,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:45:16,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:16,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:16,933 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:16,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-02-18 23:45:16,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-18 23:45:16,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:16,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:45:16,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:17,000 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-02-18 23:45:17,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-02-18 23:45:17,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685874151] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:17,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:17,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 3, 3] total 25 [2023-02-18 23:45:17,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803597442] [2023-02-18 23:45:17,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:17,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-18 23:45:17,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:17,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-18 23:45:17,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2023-02-18 23:45:17,026 INFO L87 Difference]: Start difference. First operand 600 states and 675 transitions. Second operand has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:17,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:17,613 INFO L93 Difference]: Finished difference Result 1345 states and 1471 transitions. [2023-02-18 23:45:17,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-18 23:45:17,614 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-02-18 23:45:17,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:17,616 INFO L225 Difference]: With dead ends: 1345 [2023-02-18 23:45:17,616 INFO L226 Difference]: Without dead ends: 1344 [2023-02-18 23:45:17,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 135 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=636, Invalid=1716, Unknown=0, NotChecked=0, Total=2352 [2023-02-18 23:45:17,617 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 213 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:17,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 102 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:45:17,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2023-02-18 23:45:17,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 512. [2023-02-18 23:45:17,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 511 states have (on average 1.1174168297455969) internal successors, (571), 511 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:17,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 571 transitions. [2023-02-18 23:45:17,754 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 571 transitions. Word has length 70 [2023-02-18 23:45:17,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:17,754 INFO L495 AbstractCegarLoop]: Abstraction has 512 states and 571 transitions. [2023-02-18 23:45:17,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.4) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:17,755 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 571 transitions. [2023-02-18 23:45:17,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-02-18 23:45:17,755 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:17,755 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-18 23:45:17,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-02-18 23:45:17,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:17,957 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:17,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:17,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1832785828, now seen corresponding path program 4 times [2023-02-18 23:45:17,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:17,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616565675] [2023-02-18 23:45:17,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:17,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:18,311 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:18,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:18,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616565675] [2023-02-18 23:45:18,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616565675] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:18,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107530305] [2023-02-18 23:45:18,312 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:45:18,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:18,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:18,324 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:18,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-02-18 23:45:18,365 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:45:18,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:18,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 33 conjunts are in the unsatisfiable core [2023-02-18 23:45:18,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:18,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:19,396 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:19,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107530305] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:19,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:19,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2023-02-18 23:45:19,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247174864] [2023-02-18 23:45:19,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:19,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2023-02-18 23:45:19,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:19,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2023-02-18 23:45:19,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1728, Invalid=7202, Unknown=0, NotChecked=0, Total=8930 [2023-02-18 23:45:19,398 INFO L87 Difference]: Start difference. First operand 512 states and 571 transitions. Second operand has 95 states, 94 states have (on average 2.372340425531915) internal successors, (223), 95 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:21,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:21,654 INFO L93 Difference]: Finished difference Result 1314 states and 1494 transitions. [2023-02-18 23:45:21,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2023-02-18 23:45:21,655 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.372340425531915) internal successors, (223), 95 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-02-18 23:45:21,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:21,658 INFO L225 Difference]: With dead ends: 1314 [2023-02-18 23:45:21,658 INFO L226 Difference]: Without dead ends: 1265 [2023-02-18 23:45:21,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12457 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=6576, Invalid=26730, Unknown=0, NotChecked=0, Total=33306 [2023-02-18 23:45:21,660 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 660 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:21,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 138 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 23:45:21,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2023-02-18 23:45:21,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 752. [2023-02-18 23:45:21,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 751 states have (on average 1.1318242343541944) internal successors, (850), 751 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 850 transitions. [2023-02-18 23:45:21,858 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 850 transitions. Word has length 75 [2023-02-18 23:45:21,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:21,859 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 850 transitions. [2023-02-18 23:45:21,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.372340425531915) internal successors, (223), 95 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 850 transitions. [2023-02-18 23:45:21,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-02-18 23:45:21,860 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:21,860 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:21,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:22,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:22,065 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:22,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:22,066 INFO L85 PathProgramCache]: Analyzing trace with hash -617037781, now seen corresponding path program 5 times [2023-02-18 23:45:22,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:22,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248032611] [2023-02-18 23:45:22,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:22,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:22,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:22,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248032611] [2023-02-18 23:45:22,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248032611] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:22,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697471981] [2023-02-18 23:45:22,670 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:45:22,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:22,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:22,671 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:22,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-02-18 23:45:22,713 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2023-02-18 23:45:22,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:22,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-18 23:45:22,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:23,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 0 proven. 631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:24,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697471981] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:24,424 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:24,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2023-02-18 23:45:24,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143168686] [2023-02-18 23:45:24,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:24,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2023-02-18 23:45:24,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:24,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2023-02-18 23:45:24,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3096, Invalid=10946, Unknown=0, NotChecked=0, Total=14042 [2023-02-18 23:45:24,428 INFO L87 Difference]: Start difference. First operand 752 states and 850 transitions. Second operand has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:25,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:25,794 INFO L93 Difference]: Finished difference Result 1050 states and 1167 transitions. [2023-02-18 23:45:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2023-02-18 23:45:25,795 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-02-18 23:45:25,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:25,803 INFO L225 Difference]: With dead ends: 1050 [2023-02-18 23:45:25,803 INFO L226 Difference]: Without dead ends: 1011 [2023-02-18 23:45:25,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9966 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5767, Invalid=19039, Unknown=0, NotChecked=0, Total=24806 [2023-02-18 23:45:25,806 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 499 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:25,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 116 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:45:25,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2023-02-18 23:45:26,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 835. [2023-02-18 23:45:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 834 states have (on average 1.118705035971223) internal successors, (933), 834 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 933 transitions. [2023-02-18 23:45:26,041 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 933 transitions. Word has length 84 [2023-02-18 23:45:26,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:26,041 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 933 transitions. [2023-02-18 23:45:26,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.1186440677966103) internal successors, (250), 119 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:26,041 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 933 transitions. [2023-02-18 23:45:26,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-02-18 23:45:26,042 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:26,042 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 7, 7, 7, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:26,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:26,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:26,247 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:26,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:26,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1323124214, now seen corresponding path program 5 times [2023-02-18 23:45:26,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:26,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627160989] [2023-02-18 23:45:26,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:26,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:26,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:26,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627160989] [2023-02-18 23:45:26,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627160989] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:26,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871184559] [2023-02-18 23:45:26,744 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:45:26,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:26,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:26,745 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:26,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-02-18 23:45:26,783 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2023-02-18 23:45:26,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:26,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 39 conjunts are in the unsatisfiable core [2023-02-18 23:45:26,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:27,306 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:27,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:28,136 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:28,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871184559] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:28,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:28,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 112 [2023-02-18 23:45:28,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120451271] [2023-02-18 23:45:28,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:28,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2023-02-18 23:45:28,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:28,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2023-02-18 23:45:28,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2310, Invalid=10346, Unknown=0, NotChecked=0, Total=12656 [2023-02-18 23:45:28,140 INFO L87 Difference]: Start difference. First operand 835 states and 933 transitions. Second operand has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:30,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:30,800 INFO L93 Difference]: Finished difference Result 1926 states and 2106 transitions. [2023-02-18 23:45:30,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2023-02-18 23:45:30,800 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-02-18 23:45:30,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:30,803 INFO L225 Difference]: With dead ends: 1926 [2023-02-18 23:45:30,803 INFO L226 Difference]: Without dead ends: 1897 [2023-02-18 23:45:30,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15729 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=8856, Invalid=33374, Unknown=0, NotChecked=0, Total=42230 [2023-02-18 23:45:30,805 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 884 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:30,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 153 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 23:45:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2023-02-18 23:45:31,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1051. [2023-02-18 23:45:31,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1050 states have (on average 1.1247619047619049) internal successors, (1181), 1050 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1181 transitions. [2023-02-18 23:45:31,125 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1181 transitions. Word has length 86 [2023-02-18 23:45:31,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:31,125 INFO L495 AbstractCegarLoop]: Abstraction has 1051 states and 1181 transitions. [2023-02-18 23:45:31,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 2.2857142857142856) internal successors, (256), 113 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:31,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1181 transitions. [2023-02-18 23:45:31,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-02-18 23:45:31,127 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:31,127 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 9, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2023-02-18 23:45:31,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:31,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-02-18 23:45:31,332 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:31,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1490358653, now seen corresponding path program 5 times [2023-02-18 23:45:31,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:31,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574646169] [2023-02-18 23:45:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:31,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:32,002 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:32,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:32,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574646169] [2023-02-18 23:45:32,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574646169] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:32,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514890123] [2023-02-18 23:45:32,002 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:45:32,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:32,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:32,008 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:32,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-02-18 23:45:32,037 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-02-18 23:45:32,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:32,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-18 23:45:32,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-02-18 23:45:32,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 23:45:32,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514890123] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:45:32,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 23:45:32,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [46] total 50 [2023-02-18 23:45:32,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329275497] [2023-02-18 23:45:32,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:45:32,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:45:32,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:32,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:45:32,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=485, Invalid=1965, Unknown=0, NotChecked=0, Total=2450 [2023-02-18 23:45:32,107 INFO L87 Difference]: Start difference. First operand 1051 states and 1181 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:32,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:32,407 INFO L93 Difference]: Finished difference Result 1474 states and 1663 transitions. [2023-02-18 23:45:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:45:32,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 107 [2023-02-18 23:45:32,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:32,408 INFO L225 Difference]: With dead ends: 1474 [2023-02-18 23:45:32,408 INFO L226 Difference]: Without dead ends: 739 [2023-02-18 23:45:32,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=489, Invalid=2061, Unknown=0, NotChecked=0, Total=2550 [2023-02-18 23:45:32,409 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:32,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 43 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:45:32,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2023-02-18 23:45:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 736. [2023-02-18 23:45:32,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 735 states have (on average 1.0857142857142856) internal successors, (798), 735 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 798 transitions. [2023-02-18 23:45:32,714 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 798 transitions. Word has length 107 [2023-02-18 23:45:32,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:32,714 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 798 transitions. [2023-02-18 23:45:32,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:32,714 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 798 transitions. [2023-02-18 23:45:32,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-02-18 23:45:32,717 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:32,717 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 11, 9, 9, 9, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:32,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:32,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-02-18 23:45:32,923 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:32,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:32,923 INFO L85 PathProgramCache]: Analyzing trace with hash -887179862, now seen corresponding path program 6 times [2023-02-18 23:45:32,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:32,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39092344] [2023-02-18 23:45:32,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:32,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:33,745 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:33,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:33,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39092344] [2023-02-18 23:45:33,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39092344] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:33,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346320954] [2023-02-18 23:45:33,745 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:45:33,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:33,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:33,747 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:33,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-02-18 23:45:33,792 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2023-02-18 23:45:33,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:33,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 51 conjunts are in the unsatisfiable core [2023-02-18 23:45:33,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:34,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:36,020 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:36,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346320954] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:36,021 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:36,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 148 [2023-02-18 23:45:36,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255438926] [2023-02-18 23:45:36,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:36,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2023-02-18 23:45:36,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:36,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2023-02-18 23:45:36,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3970, Invalid=18082, Unknown=0, NotChecked=0, Total=22052 [2023-02-18 23:45:36,025 INFO L87 Difference]: Start difference. First operand 736 states and 798 transitions. Second operand has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:39,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:39,916 INFO L93 Difference]: Finished difference Result 1810 states and 1938 transitions. [2023-02-18 23:45:39,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2023-02-18 23:45:39,916 INFO L78 Accepts]: Start accepts. Automaton has has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2023-02-18 23:45:39,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:39,918 INFO L225 Difference]: With dead ends: 1810 [2023-02-18 23:45:39,919 INFO L226 Difference]: Without dead ends: 1773 [2023-02-18 23:45:39,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26451 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=14570, Invalid=54336, Unknown=0, NotChecked=0, Total=68906 [2023-02-18 23:45:39,921 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1082 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:39,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 181 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 23:45:39,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2023-02-18 23:45:40,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 883. [2023-02-18 23:45:40,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.0861678004535147) internal successors, (958), 882 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:40,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 958 transitions. [2023-02-18 23:45:40,248 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 958 transitions. Word has length 112 [2023-02-18 23:45:40,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:40,248 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 958 transitions. [2023-02-18 23:45:40,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 148 states have (on average 2.2567567567567566) internal successors, (334), 149 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:40,248 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 958 transitions. [2023-02-18 23:45:40,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-02-18 23:45:40,249 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:40,249 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 11, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2023-02-18 23:45:40,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-02-18 23:45:40,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-02-18 23:45:40,455 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:40,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:40,455 INFO L85 PathProgramCache]: Analyzing trace with hash -741217715, now seen corresponding path program 6 times [2023-02-18 23:45:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:40,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192888234] [2023-02-18 23:45:40,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:41,275 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:41,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:41,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192888234] [2023-02-18 23:45:41,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192888234] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:41,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265673324] [2023-02-18 23:45:41,276 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:45:41,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:41,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:41,277 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:41,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-02-18 23:45:41,310 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-02-18 23:45:41,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:41,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 23:45:41,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:41,426 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 140 proven. 4 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2023-02-18 23:45:41,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:41,482 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 140 proven. 4 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2023-02-18 23:45:41,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265673324] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:41,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:41,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 6, 6] total 55 [2023-02-18 23:45:41,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607963025] [2023-02-18 23:45:41,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:41,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-02-18 23:45:41,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:41,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-02-18 23:45:41,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=575, Invalid=2395, Unknown=0, NotChecked=0, Total=2970 [2023-02-18 23:45:41,485 INFO L87 Difference]: Start difference. First operand 883 states and 958 transitions. Second operand has 55 states, 55 states have (on average 2.5454545454545454) internal successors, (140), 55 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:43,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:43,210 INFO L93 Difference]: Finished difference Result 1365 states and 1461 transitions. [2023-02-18 23:45:43,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-02-18 23:45:43,213 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 2.5454545454545454) internal successors, (140), 55 states have internal predecessors, (140), 0 states have call successors, (0), 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 115 [2023-02-18 23:45:43,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:43,214 INFO L225 Difference]: With dead ends: 1365 [2023-02-18 23:45:43,214 INFO L226 Difference]: Without dead ends: 584 [2023-02-18 23:45:43,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3219 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2598, Invalid=11682, Unknown=0, NotChecked=0, Total=14280 [2023-02-18 23:45:43,216 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 421 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:43,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 121 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:45:43,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-02-18 23:45:43,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 520. [2023-02-18 23:45:43,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 519 states have (on average 1.0423892100192678) internal successors, (541), 519 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:43,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 541 transitions. [2023-02-18 23:45:43,527 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 541 transitions. Word has length 115 [2023-02-18 23:45:43,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:43,527 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 541 transitions. [2023-02-18 23:45:43,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 2.5454545454545454) internal successors, (140), 55 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:43,527 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 541 transitions. [2023-02-18 23:45:43,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-02-18 23:45:43,529 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:43,530 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:43,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:43,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-02-18 23:45:43,734 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:43,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1904594161, now seen corresponding path program 2 times [2023-02-18 23:45:43,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:43,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595138580] [2023-02-18 23:45:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:43,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:44,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:44,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595138580] [2023-02-18 23:45:44,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595138580] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:44,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560877172] [2023-02-18 23:45:44,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:45:44,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:44,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:44,694 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:44,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-02-18 23:45:44,739 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:45:44,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:44,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 57 conjunts are in the unsatisfiable core [2023-02-18 23:45:44,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:45,787 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:45,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:47,483 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:47,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560877172] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:47,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:47,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56, 56] total 166 [2023-02-18 23:45:47,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056767608] [2023-02-18 23:45:47,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:47,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2023-02-18 23:45:47,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:47,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2023-02-18 23:45:47,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5032, Invalid=22690, Unknown=0, NotChecked=0, Total=27722 [2023-02-18 23:45:47,486 INFO L87 Difference]: Start difference. First operand 520 states and 541 transitions. Second operand has 167 states, 166 states have (on average 2.4096385542168677) internal successors, (400), 167 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:52,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:52,198 INFO L93 Difference]: Finished difference Result 1245 states and 1321 transitions. [2023-02-18 23:45:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2023-02-18 23:45:52,198 INFO L78 Accepts]: Start accepts. Automaton has has 167 states, 166 states have (on average 2.4096385542168677) internal successors, (400), 167 states have internal predecessors, (400), 0 states have call successors, (0), 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 134 [2023-02-18 23:45:52,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:52,200 INFO L225 Difference]: With dead ends: 1245 [2023-02-18 23:45:52,200 INFO L226 Difference]: Without dead ends: 1188 [2023-02-18 23:45:52,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 305 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36979 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=18471, Invalid=75471, Unknown=0, NotChecked=0, Total=93942 [2023-02-18 23:45:52,204 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1295 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:52,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 209 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 23:45:52,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2023-02-18 23:45:52,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 660. [2023-02-18 23:45:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 659 states have (on average 1.062215477996965) internal successors, (700), 659 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 700 transitions. [2023-02-18 23:45:52,490 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 700 transitions. Word has length 134 [2023-02-18 23:45:52,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:52,490 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 700 transitions. [2023-02-18 23:45:52,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 166 states have (on average 2.4096385542168677) internal successors, (400), 167 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:45:52,491 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 700 transitions. [2023-02-18 23:45:52,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-02-18 23:45:52,492 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:52,493 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 15, 11, 11, 11, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:52,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-02-18 23:45:52,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-02-18 23:45:52,699 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:52,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:52,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1523760293, now seen corresponding path program 7 times [2023-02-18 23:45:52,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:52,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317768686] [2023-02-18 23:45:52,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:52,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:53,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:53,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317768686] [2023-02-18 23:45:53,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317768686] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:53,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59229996] [2023-02-18 23:45:53,989 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:45:53,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:53,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:53,990 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:53,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-02-18 23:45:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:54,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 65 conjunts are in the unsatisfiable core [2023-02-18 23:45:54,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:55,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 0 proven. 1041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:45:57,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59229996] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:57,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:57,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2023-02-18 23:45:57,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943353211] [2023-02-18 23:45:57,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:57,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2023-02-18 23:45:57,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:57,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2023-02-18 23:45:57,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6496, Invalid=29794, Unknown=0, NotChecked=0, Total=36290 [2023-02-18 23:45:57,740 INFO L87 Difference]: Start difference. First operand 660 states and 700 transitions. Second operand has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:03,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:46:03,241 INFO L93 Difference]: Finished difference Result 1716 states and 1798 transitions. [2023-02-18 23:46:03,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2023-02-18 23:46:03,242 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2023-02-18 23:46:03,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:46:03,244 INFO L225 Difference]: With dead ends: 1716 [2023-02-18 23:46:03,244 INFO L226 Difference]: Without dead ends: 1669 [2023-02-18 23:46:03,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 329 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42706 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=23693, Invalid=85537, Unknown=0, NotChecked=0, Total=109230 [2023-02-18 23:46:03,247 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 1891 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 23:46:03,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 233 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 23:46:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2023-02-18 23:46:03,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 750. [2023-02-18 23:46:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 749 states have (on average 1.054739652870494) internal successors, (790), 749 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:03,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 790 transitions. [2023-02-18 23:46:03,601 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 790 transitions. Word has length 142 [2023-02-18 23:46:03,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:46:03,601 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 790 transitions. [2023-02-18 23:46:03,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 2.231578947368421) internal successors, (424), 191 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:03,602 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 790 transitions. [2023-02-18 23:46:03,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-02-18 23:46:03,603 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:46:03,603 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 20, 13, 13, 13, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1] [2023-02-18 23:46:03,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-02-18 23:46:03,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-02-18 23:46:03,808 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:46:03,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:46:03,808 INFO L85 PathProgramCache]: Analyzing trace with hash -23699845, now seen corresponding path program 8 times [2023-02-18 23:46:03,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:46:03,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156723451] [2023-02-18 23:46:03,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:46:03,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:46:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:46:05,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:46:05,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156723451] [2023-02-18 23:46:05,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156723451] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:46:05,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789594890] [2023-02-18 23:46:05,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:46:05,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:46:05,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:46:05,692 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:46:05,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-02-18 23:46:05,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:46:05,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:46:05,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 81 conjunts are in the unsatisfiable core [2023-02-18 23:46:05,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:46:07,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:46:07,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:46:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1693 backedges. 0 proven. 1693 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:46:11,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789594890] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:46:11,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:46:11,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80, 80] total 238 [2023-02-18 23:46:11,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55851779] [2023-02-18 23:46:11,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:46:11,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 239 states [2023-02-18 23:46:11,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:46:11,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 239 interpolants. [2023-02-18 23:46:11,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10176, Invalid=46706, Unknown=0, NotChecked=0, Total=56882 [2023-02-18 23:46:11,478 INFO L87 Difference]: Start difference. First operand 750 states and 790 transitions. Second operand has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:46:20,167 INFO L93 Difference]: Finished difference Result 1893 states and 1987 transitions. [2023-02-18 23:46:20,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2023-02-18 23:46:20,168 INFO L78 Accepts]: Start accepts. Automaton has has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2023-02-18 23:46:20,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:46:20,170 INFO L225 Difference]: With dead ends: 1893 [2023-02-18 23:46:20,170 INFO L226 Difference]: Without dead ends: 1834 [2023-02-18 23:46:20,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 413 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67808 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=37458, Invalid=134352, Unknown=0, NotChecked=0, Total=171810 [2023-02-18 23:46:20,176 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2069 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-18 23:46:20,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 292 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-18 23:46:20,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2023-02-18 23:46:20,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 882. [2023-02-18 23:46:20,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 881 states have (on average 1.0465380249716232) internal successors, (922), 881 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:20,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 922 transitions. [2023-02-18 23:46:20,635 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 922 transitions. Word has length 176 [2023-02-18 23:46:20,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:46:20,635 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 922 transitions. [2023-02-18 23:46:20,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 239 states, 238 states have (on average 2.2100840336134455) internal successors, (526), 239 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:20,636 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 922 transitions. [2023-02-18 23:46:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-02-18 23:46:20,638 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:46:20,638 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 26, 15, 15, 15, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1] [2023-02-18 23:46:20,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-02-18 23:46:20,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:46:20,843 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:46:20,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:46:20,843 INFO L85 PathProgramCache]: Analyzing trace with hash 278452780, now seen corresponding path program 9 times [2023-02-18 23:46:20,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:46:20,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498600777] [2023-02-18 23:46:20,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:46:20,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:46:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:46:23,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:46:23,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498600777] [2023-02-18 23:46:23,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498600777] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:46:23,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033665644] [2023-02-18 23:46:23,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:46:23,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:46:23,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:46:23,824 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:46:23,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-02-18 23:46:23,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2023-02-18 23:46:23,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:46:23,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 99 conjunts are in the unsatisfiable core [2023-02-18 23:46:23,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:46:26,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:46:26,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:46:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2636 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:46:32,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033665644] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:46:32,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:46:32,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98, 98] total 292 [2023-02-18 23:46:32,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043528993] [2023-02-18 23:46:32,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:46:32,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 293 states [2023-02-18 23:46:32,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:46:32,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 293 interpolants. [2023-02-18 23:46:32,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15346, Invalid=70210, Unknown=0, NotChecked=0, Total=85556 [2023-02-18 23:46:32,321 INFO L87 Difference]: Start difference. First operand 882 states and 922 transitions. Second operand has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:46,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:46:46,167 INFO L93 Difference]: Finished difference Result 2269 states and 2377 transitions. [2023-02-18 23:46:46,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2023-02-18 23:46:46,168 INFO L78 Accepts]: Start accepts. Automaton has has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 214 [2023-02-18 23:46:46,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:46:46,171 INFO L225 Difference]: With dead ends: 2269 [2023-02-18 23:46:46,171 INFO L226 Difference]: Without dead ends: 2196 [2023-02-18 23:46:46,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 507 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102689 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=56723, Invalid=201849, Unknown=0, NotChecked=0, Total=258572 [2023-02-18 23:46:46,186 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2374 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2374 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-18 23:46:46,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2374 Valid, 333 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-18 23:46:46,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2023-02-18 23:46:46,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 1036. [2023-02-18 23:46:46,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 1035 states have (on average 1.0396135265700484) internal successors, (1076), 1035 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1076 transitions. [2023-02-18 23:46:46,755 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1076 transitions. Word has length 214 [2023-02-18 23:46:46,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:46:46,757 INFO L495 AbstractCegarLoop]: Abstraction has 1036 states and 1076 transitions. [2023-02-18 23:46:46,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 293 states, 292 states have (on average 2.191780821917808) internal successors, (640), 293 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:46:46,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1076 transitions. [2023-02-18 23:46:46,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-02-18 23:46:46,759 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:46:46,759 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 19, 19, 19, 16, 16, 16, 15, 15, 4, 1, 1, 1, 1, 1, 1] [2023-02-18 23:46:46,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-02-18 23:46:46,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:46:46,964 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:46:46,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:46:46,964 INFO L85 PathProgramCache]: Analyzing trace with hash 534161874, now seen corresponding path program 10 times [2023-02-18 23:46:46,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:46:46,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411960894] [2023-02-18 23:46:46,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:46:46,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:46:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:50,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2834 backedges. 0 proven. 2834 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:46:50,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:46:50,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411960894] [2023-02-18 23:46:50,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411960894] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:46:50,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660166348] [2023-02-18 23:46:50,098 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:46:50,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:46:50,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:46:50,099 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:46:50,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-02-18 23:46:50,173 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:46:50,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:46:50,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 103 conjunts are in the unsatisfiable core [2023-02-18 23:46:50,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:46:53,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2834 backedges. 0 proven. 2834 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:46:53,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:46:59,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2834 backedges. 0 proven. 2834 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:46:59,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660166348] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:46:59,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:46:59,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102, 102] total 304 [2023-02-18 23:46:59,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851182550] [2023-02-18 23:46:59,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:46:59,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 305 states [2023-02-18 23:46:59,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:46:59,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 305 interpolants. [2023-02-18 23:46:59,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16198, Invalid=76522, Unknown=0, NotChecked=0, Total=92720 [2023-02-18 23:46:59,142 INFO L87 Difference]: Start difference. First operand 1036 states and 1076 transitions. Second operand has 305 states, 304 states have (on average 2.3421052631578947) internal successors, (712), 305 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:47:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:47:16,079 INFO L93 Difference]: Finished difference Result 2347 states and 2477 transitions. [2023-02-18 23:47:16,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 359 states. [2023-02-18 23:47:16,079 INFO L78 Accepts]: Start accepts. Automaton has has 305 states, 304 states have (on average 2.3421052631578947) internal successors, (712), 305 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2023-02-18 23:47:16,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:47:16,082 INFO L225 Difference]: With dead ends: 2347 [2023-02-18 23:47:16,082 INFO L226 Difference]: Without dead ends: 2252 [2023-02-18 23:47:16,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 559 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126219 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=61960, Invalid=252200, Unknown=0, NotChecked=0, Total=314160 [2023-02-18 23:47:16,095 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2510 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2510 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-18 23:47:16,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2510 Valid, 353 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-18 23:47:16,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2252 states. [2023-02-18 23:47:16,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2252 to 1221. [2023-02-18 23:47:16,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1220 states have (on average 1.0540983606557377) internal successors, (1286), 1220 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:47:16,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1286 transitions. [2023-02-18 23:47:16,711 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1286 transitions. Word has length 238 [2023-02-18 23:47:16,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:47:16,711 INFO L495 AbstractCegarLoop]: Abstraction has 1221 states and 1286 transitions. [2023-02-18 23:47:16,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 305 states, 304 states have (on average 2.3421052631578947) internal successors, (712), 305 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:47:16,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1286 transitions. [2023-02-18 23:47:16,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-02-18 23:47:16,713 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:47:16,714 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 33, 17, 17, 17, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1] [2023-02-18 23:47:16,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-02-18 23:47:16,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2023-02-18 23:47:16,919 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:47:16,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:47:16,919 INFO L85 PathProgramCache]: Analyzing trace with hash -125592008, now seen corresponding path program 11 times [2023-02-18 23:47:16,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:47:16,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188590283] [2023-02-18 23:47:16,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:47:16,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:47:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:21,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:47:21,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:47:21,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188590283] [2023-02-18 23:47:21,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188590283] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:47:21,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896892024] [2023-02-18 23:47:21,126 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:47:21,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:47:21,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:47:21,127 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:47:21,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-02-18 23:47:21,226 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 34 check-sat command(s) [2023-02-18 23:47:21,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:47:21,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 119 conjunts are in the unsatisfiable core [2023-02-18 23:47:21,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:47:25,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:47:25,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:47:33,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3954 backedges. 0 proven. 3954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:47:33,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896892024] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:47:33,398 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:47:33,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 118, 118] total 352 [2023-02-18 23:47:33,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529377048] [2023-02-18 23:47:33,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:47:33,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 353 states [2023-02-18 23:47:33,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:47:33,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 353 interpolants. [2023-02-18 23:47:33,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22390, Invalid=101866, Unknown=0, NotChecked=0, Total=124256 [2023-02-18 23:47:33,412 INFO L87 Difference]: Start difference. First operand 1221 states and 1286 transitions. Second operand has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:47:54,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:47:54,897 INFO L93 Difference]: Finished difference Result 3496 states and 3645 transitions. [2023-02-18 23:47:54,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 379 states. [2023-02-18 23:47:54,898 INFO L78 Accepts]: Start accepts. Automaton has has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2023-02-18 23:47:54,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:47:54,902 INFO L225 Difference]: With dead ends: 3496 [2023-02-18 23:47:54,902 INFO L226 Difference]: Without dead ends: 3407 [2023-02-18 23:47:54,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 611 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149713 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=82835, Invalid=292321, Unknown=0, NotChecked=0, Total=375156 [2023-02-18 23:47:54,913 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3395 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3395 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 2139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:47:54,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3395 Valid, 398 Invalid, 2139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2121 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-02-18 23:47:54,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3407 states. [2023-02-18 23:47:55,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3407 to 1397. [2023-02-18 23:47:55,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1396 states have (on average 1.0472779369627507) internal successors, (1462), 1396 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:47:55,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 1462 transitions. [2023-02-18 23:47:55,660 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 1462 transitions. Word has length 256 [2023-02-18 23:47:55,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:47:55,660 INFO L495 AbstractCegarLoop]: Abstraction has 1397 states and 1462 transitions. [2023-02-18 23:47:55,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 353 states, 352 states have (on average 2.1761363636363638) internal successors, (766), 353 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:47:55,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 1462 transitions. [2023-02-18 23:47:55,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-02-18 23:47:55,662 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:47:55,662 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 41, 19, 19, 19, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1] [2023-02-18 23:47:55,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-02-18 23:47:55,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:47:55,863 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:47:55,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:47:55,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1315305313, now seen corresponding path program 12 times [2023-02-18 23:47:55,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:47:55,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418344345] [2023-02-18 23:47:55,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:47:55,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:47:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 5743 backedges. 0 proven. 5743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:01,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:01,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418344345] [2023-02-18 23:48:01,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418344345] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:48:01,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138412534] [2023-02-18 23:48:01,902 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:48:01,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:48:01,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:48:01,903 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:48:01,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-02-18 23:48:02,050 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 42 check-sat command(s) [2023-02-18 23:48:02,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:48:02,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 141 conjunts are in the unsatisfiable core [2023-02-18 23:48:02,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:48:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5743 backedges. 0 proven. 5743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:08,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:48:19,015 INFO L134 CoverageAnalysis]: Checked inductivity of 5743 backedges. 0 proven. 5743 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:48:19,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138412534] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:48:19,015 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:48:19,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [140, 140, 140] total 418 [2023-02-18 23:48:19,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876625650] [2023-02-18 23:48:19,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:48:19,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 419 states [2023-02-18 23:48:19,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:19,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 419 interpolants. [2023-02-18 23:48:19,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31740, Invalid=143402, Unknown=0, NotChecked=0, Total=175142 [2023-02-18 23:48:19,031 INFO L87 Difference]: Start difference. First operand 1397 states and 1462 transitions. Second operand has 419 states, 418 states have (on average 2.1626794258373208) internal successors, (904), 419 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:53,148 INFO L93 Difference]: Finished difference Result 3753 states and 3920 transitions. [2023-02-18 23:48:53,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 449 states. [2023-02-18 23:48:53,149 INFO L78 Accepts]: Start accepts. Automaton has has 419 states, 418 states have (on average 2.1626794258373208) internal successors, (904), 419 states have internal predecessors, (904), 0 states have call successors, (0), 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 302 [2023-02-18 23:48:53,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:53,153 INFO L225 Difference]: With dead ends: 3753 [2023-02-18 23:48:53,153 INFO L226 Difference]: Without dead ends: 3646 [2023-02-18 23:48:53,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 725 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211301 ImplicationChecksByTransitivity, 35.6s TimeCoverageRelationStatistics Valid=117294, Invalid=410508, Unknown=0, NotChecked=0, Total=527802 [2023-02-18 23:48:53,169 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4050 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4050 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 2644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:53,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4050 Valid, 488 Invalid, 2644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2620 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-18 23:48:53,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2023-02-18 23:48:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 1595. [2023-02-18 23:48:54,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1594 states have (on average 1.041405269761606) internal successors, (1660), 1594 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:54,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 1660 transitions. [2023-02-18 23:48:54,079 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 1660 transitions. Word has length 302 [2023-02-18 23:48:54,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:54,079 INFO L495 AbstractCegarLoop]: Abstraction has 1595 states and 1660 transitions. [2023-02-18 23:48:54,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 419 states, 418 states have (on average 2.1626794258373208) internal successors, (904), 419 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:48:54,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 1660 transitions. [2023-02-18 23:48:54,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-02-18 23:48:54,082 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:54,082 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 35, 35, 35, 20, 20, 20, 19, 19, 16, 1, 1, 1, 1, 1, 1] [2023-02-18 23:48:54,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-02-18 23:48:54,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-02-18 23:48:54,282 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:48:54,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:54,283 INFO L85 PathProgramCache]: Analyzing trace with hash 380180434, now seen corresponding path program 13 times [2023-02-18 23:48:54,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:54,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342962510] [2023-02-18 23:48:54,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:54,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:01,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5798 backedges. 0 proven. 5798 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:49:01,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:49:01,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342962510] [2023-02-18 23:49:01,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342962510] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:49:01,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050686975] [2023-02-18 23:49:01,441 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:49:01,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:49:01,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:49:01,443 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:49:01,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-02-18 23:49:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:01,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 151 conjunts are in the unsatisfiable core [2023-02-18 23:49:01,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:49:08,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5798 backedges. 0 proven. 5798 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:49:08,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:49:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 5798 backedges. 0 proven. 5798 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:49:20,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050686975] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:49:20,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:49:20,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [150, 150, 150] total 448 [2023-02-18 23:49:20,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836998283] [2023-02-18 23:49:20,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:49:20,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 449 states [2023-02-18 23:49:20,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:49:20,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 449 interpolants. [2023-02-18 23:49:20,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34230, Invalid=166922, Unknown=0, NotChecked=0, Total=201152 [2023-02-18 23:49:20,794 INFO L87 Difference]: Start difference. First operand 1595 states and 1660 transitions. Second operand has 449 states, 448 states have (on average 2.2857142857142856) internal successors, (1024), 449 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:50:05,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:50:05,400 INFO L93 Difference]: Finished difference Result 3693 states and 3862 transitions. [2023-02-18 23:50:05,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 519 states. [2023-02-18 23:50:05,401 INFO L78 Accepts]: Start accepts. Automaton has has 449 states, 448 states have (on average 2.2857142857142856) internal successors, (1024), 449 states have internal predecessors, (1024), 0 states have call successors, (0), 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 342 [2023-02-18 23:50:05,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:50:05,405 INFO L225 Difference]: With dead ends: 3693 [2023-02-18 23:50:05,405 INFO L226 Difference]: Without dead ends: 3584 [2023-02-18 23:50:05,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1200 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 815 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268342 ImplicationChecksByTransitivity, 43.1s TimeCoverageRelationStatistics Valid=134524, Invalid=532148, Unknown=0, NotChecked=0, Total=666672 [2023-02-18 23:50:05,431 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3843 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 2772 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3843 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 2816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:50:05,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3843 Valid, 511 Invalid, 2816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2772 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-02-18 23:50:05,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2023-02-18 23:50:06,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 1715. [2023-02-18 23:50:06,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 1.0478413068844807) internal successors, (1796), 1714 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:50:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 1796 transitions. [2023-02-18 23:50:06,451 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 1796 transitions. Word has length 342 [2023-02-18 23:50:06,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:50:06,451 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 1796 transitions. [2023-02-18 23:50:06,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 449 states, 448 states have (on average 2.2857142857142856) internal successors, (1024), 449 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:50:06,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 1796 transitions. [2023-02-18 23:50:06,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-02-18 23:50:06,453 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:50:06,454 INFO L195 NwaCegarLoop]: trace histogram [72, 72, 72, 62, 21, 21, 21, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2023-02-18 23:50:06,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-02-18 23:50:06,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:50:06,657 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:50:06,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:50:06,657 INFO L85 PathProgramCache]: Analyzing trace with hash 10392357, now seen corresponding path program 14 times [2023-02-18 23:50:06,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:50:06,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808763214] [2023-02-18 23:50:06,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:50:06,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:50:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:18,303 INFO L134 CoverageAnalysis]: Checked inductivity of 11267 backedges. 0 proven. 11267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:50:18,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:50:18,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808763214] [2023-02-18 23:50:18,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808763214] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:50:18,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46594130] [2023-02-18 23:50:18,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:50:18,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:50:18,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:50:18,305 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:50:18,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-02-18 23:50:18,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:50:18,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:50:18,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 189 conjunts are in the unsatisfiable core [2023-02-18 23:50:18,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:50:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 11267 backedges. 0 proven. 11267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:50:29,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:50:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 11267 backedges. 0 proven. 11267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:50:49,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46594130] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:50:49,433 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:50:49,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [188, 188, 188] total 562 [2023-02-18 23:50:49,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209340499] [2023-02-18 23:50:49,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:50:49,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 563 states [2023-02-18 23:50:49,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:50:49,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 563 interpolants. [2023-02-18 23:50:49,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58780, Invalid=257626, Unknown=0, NotChecked=0, Total=316406 [2023-02-18 23:50:49,462 INFO L87 Difference]: Start difference. First operand 1715 states and 1796 transitions. Second operand has 563 states, 562 states have (on average 2.131672597864769) internal successors, (1198), 563 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:52:09,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:52:09,617 INFO L93 Difference]: Finished difference Result 5495 states and 5722 transitions. [2023-02-18 23:52:09,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 597 states. [2023-02-18 23:52:09,618 INFO L78 Accepts]: Start accepts. Automaton has has 563 states, 562 states have (on average 2.131672597864769) internal successors, (1198), 563 states have internal predecessors, (1198), 0 states have call successors, (0), 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 400 [2023-02-18 23:52:09,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:52:09,624 INFO L225 Difference]: With dead ends: 5495 [2023-02-18 23:52:09,625 INFO L226 Difference]: Without dead ends: 5344 [2023-02-18 23:52:09,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1394 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 969 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378322 ImplicationChecksByTransitivity, 64.8s TimeCoverageRelationStatistics Valid=213767, Invalid=728103, Unknown=0, NotChecked=0, Total=941870 [2023-02-18 23:52:09,750 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5413 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 3436 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5413 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 3459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-02-18 23:52:09,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5413 Valid, 642 Invalid, 3459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3436 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-02-18 23:52:09,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2023-02-18 23:52:11,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 2199. [2023-02-18 23:52:11,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2199 states, 2198 states have (on average 1.0373066424021837) internal successors, (2280), 2198 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:52:11,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 2280 transitions. [2023-02-18 23:52:11,438 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 2280 transitions. Word has length 400 [2023-02-18 23:52:11,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:52:11,439 INFO L495 AbstractCegarLoop]: Abstraction has 2199 states and 2280 transitions. [2023-02-18 23:52:11,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 563 states, 562 states have (on average 2.131672597864769) internal successors, (1198), 563 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:52:11,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 2280 transitions. [2023-02-18 23:52:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2023-02-18 23:52:11,442 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:52:11,443 INFO L195 NwaCegarLoop]: trace histogram [55, 55, 55, 43, 43, 43, 34, 22, 22, 22, 21, 21, 1, 1, 1, 1, 1, 1] [2023-02-18 23:52:11,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-02-18 23:52:11,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-02-18 23:52:11,648 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:52:11,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:52:11,649 INFO L85 PathProgramCache]: Analyzing trace with hash 189659286, now seen corresponding path program 15 times [2023-02-18 23:52:11,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:52:11,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920055082] [2023-02-18 23:52:11,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:52:11,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:52:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 10112 backedges. 0 proven. 10112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:52:25,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:52:25,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920055082] [2023-02-18 23:52:25,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920055082] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:52:25,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021894901] [2023-02-18 23:52:25,200 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:52:25,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:52:25,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:52:25,201 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:52:25,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-02-18 23:52:25,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 35 check-sat command(s) [2023-02-18 23:52:25,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:52:25,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 199 conjunts are in the unsatisfiable core [2023-02-18 23:52:25,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:52:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 10112 backedges. 0 proven. 10112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:52:38,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:53:01,488 INFO L134 CoverageAnalysis]: Checked inductivity of 10112 backedges. 0 proven. 10112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:53:01,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021894901] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:53:01,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:53:01,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [198, 198, 198] total 592 [2023-02-18 23:53:01,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420817874] [2023-02-18 23:53:01,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:53:01,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 593 states [2023-02-18 23:53:01,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:53:01,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 593 interpolants. [2023-02-18 23:53:01,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59686, Invalid=291370, Unknown=0, NotChecked=0, Total=351056 [2023-02-18 23:53:01,524 INFO L87 Difference]: Start difference. First operand 2199 states and 2280 transitions. Second operand has 593 states, 592 states have (on average 2.2364864864864864) internal successors, (1324), 593 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:54:46,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:54:46,592 INFO L93 Difference]: Finished difference Result 5317 states and 5526 transitions. [2023-02-18 23:54:46,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 671 states. [2023-02-18 23:54:46,593 INFO L78 Accepts]: Start accepts. Automaton has has 593 states, 592 states have (on average 2.2364864864864864) internal successors, (1324), 593 states have internal predecessors, (1324), 0 states have call successors, (0), 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 442 [2023-02-18 23:54:46,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:54:46,597 INFO L225 Difference]: With dead ends: 5317 [2023-02-18 23:54:46,597 INFO L226 Difference]: Without dead ends: 5184 [2023-02-18 23:54:46,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1552 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 1063 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456647 ImplicationChecksByTransitivity, 79.0s TimeCoverageRelationStatistics Valid=235132, Invalid=898028, Unknown=0, NotChecked=0, Total=1133160 [2023-02-18 23:54:46,642 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 5725 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 3714 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5725 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 3765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 3714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:54:46,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5725 Valid, 687 Invalid, 3765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 3714 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-02-18 23:54:46,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2023-02-18 23:54:48,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 2259. [2023-02-18 23:54:48,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2259 states, 2258 states have (on average 1.0398582816651905) internal successors, (2348), 2258 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:54:48,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 2348 transitions. [2023-02-18 23:54:48,386 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 2348 transitions. Word has length 442 [2023-02-18 23:54:48,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:54:48,387 INFO L495 AbstractCegarLoop]: Abstraction has 2259 states and 2348 transitions. [2023-02-18 23:54:48,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 593 states, 592 states have (on average 2.2364864864864864) internal successors, (1324), 593 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:54:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 2348 transitions. [2023-02-18 23:54:48,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2023-02-18 23:54:48,390 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:54:48,391 INFO L195 NwaCegarLoop]: trace histogram [77, 77, 77, 55, 45, 45, 45, 23, 23, 23, 22, 22, 1, 1, 1, 1, 1, 1] [2023-02-18 23:54:48,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-02-18 23:54:48,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-02-18 23:54:48,595 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:54:48,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:54:48,596 INFO L85 PathProgramCache]: Analyzing trace with hash 969046812, now seen corresponding path program 16 times [2023-02-18 23:54:48,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:54:48,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823811851] [2023-02-18 23:54:48,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:54:48,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:54:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 16292 backedges. 0 proven. 16292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:55:10,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:55:10,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823811851] [2023-02-18 23:55:10,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823811851] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:55:10,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247487950] [2023-02-18 23:55:10,618 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:55:10,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:55:10,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:55:10,620 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:55:10,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-02-18 23:55:10,817 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:55:10,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:55:10,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 247 conjunts are in the unsatisfiable core [2023-02-18 23:55:10,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:55:31,482 INFO L134 CoverageAnalysis]: Checked inductivity of 16292 backedges. 0 proven. 16292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:55:31,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:56:05,347 INFO L134 CoverageAnalysis]: Checked inductivity of 16292 backedges. 0 proven. 16292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:56:05,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247487950] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:56:05,348 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:56:05,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [246, 246, 246] total 736 [2023-02-18 23:56:05,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496395056] [2023-02-18 23:56:05,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:56:05,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 737 states [2023-02-18 23:56:05,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:56:05,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 737 interpolants. [2023-02-18 23:56:05,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93558, Invalid=448874, Unknown=0, NotChecked=0, Total=542432 [2023-02-18 23:56:05,383 INFO L87 Difference]: Start difference. First operand 2259 states and 2348 transitions. Second operand has 737 states, 736 states have (on average 2.198369565217391) internal successors, (1618), 737 states have internal predecessors, (1618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)