./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.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 01a4b84af22ba9336b377376d27423612474043c2c250fad1845bccdee580746 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-17 03:54:55,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 03:54:55,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 03:54:55,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 03:54:55,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 03:54:55,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 03:54:55,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 03:54:55,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 03:54:55,520 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 03:54:55,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 03:54:55,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 03:54:55,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 03:54:55,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 03:54:55,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 03:54:55,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 03:54:55,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 03:54:55,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 03:54:55,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 03:54:55,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 03:54:55,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 03:54:55,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 03:54:55,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 03:54:55,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 03:54:55,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 03:54:55,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 03:54:55,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 03:54:55,552 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 03:54:55,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 03:54:55,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 03:54:55,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 03:54:55,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 03:54:55,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 03:54:55,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 03:54:55,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 03:54:55,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 03:54:55,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 03:54:55,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 03:54:55,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 03:54:55,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 03:54:55,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 03:54:55,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 03:54:55,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-17 03:54:55,589 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 03:54:55,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 03:54:55,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 03:54:55,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 03:54:55,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 03:54:55,591 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 03:54:55,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 03:54:55,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 03:54:55,591 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 03:54:55,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 03:54:55,592 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 03:54:55,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 03:54:55,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 03:54:55,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 03:54:55,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 03:54:55,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 03:54:55,593 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-17 03:54:55,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 03:54:55,594 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 03:54:55,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 03:54:55,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 03:54:55,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 03:54:55,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 03:54:55,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 03:54:55,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 03:54:55,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 03:54:55,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 03:54:55,595 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 03:54:55,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 03:54:55,596 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 03:54:55,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 03:54:55,596 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 03:54:55,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 03:54:55,597 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 03:54:55,597 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01a4b84af22ba9336b377376d27423612474043c2c250fad1845bccdee580746 [2023-02-17 03:54:55,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 03:54:55,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 03:54:55,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 03:54:55,859 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 03:54:55,860 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 03:54:55,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c [2023-02-17 03:54:56,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 03:54:57,137 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 03:54:57,138 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c [2023-02-17 03:54:57,143 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e8b72b31/a0d46d38b8914273aa0780c3ad041789/FLAGdfe5b66e3 [2023-02-17 03:54:57,154 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e8b72b31/a0d46d38b8914273aa0780c3ad041789 [2023-02-17 03:54:57,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 03:54:57,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 03:54:57,158 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 03:54:57,158 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 03:54:57,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 03:54:57,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@543af856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57, skipping insertion in model container [2023-02-17 03:54:57,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 03:54:57,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 03:54:57,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 03:54:57,288 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 03:54:57,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 03:54:57,315 INFO L208 MainTranslator]: Completed translation [2023-02-17 03:54:57,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57 WrapperNode [2023-02-17 03:54:57,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 03:54:57,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 03:54:57,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 03:54:57,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 03:54:57,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,339 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-02-17 03:54:57,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 03:54:57,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 03:54:57,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 03:54:57,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 03:54:57,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,355 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 03:54:57,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 03:54:57,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 03:54:57,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 03:54:57,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (1/1) ... [2023-02-17 03:54:57,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 03:54:57,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:54:57,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-17 03:54:57,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-17 03:54:57,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 03:54:57,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 03:54:57,465 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 03:54:57,466 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 03:54:57,537 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 03:54:57,542 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 03:54:57,543 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-17 03:54:57,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 03:54:57 BoogieIcfgContainer [2023-02-17 03:54:57,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 03:54:57,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 03:54:57,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 03:54:57,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 03:54:57,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 03:54:57" (1/3) ... [2023-02-17 03:54:57,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756401e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 03:54:57, skipping insertion in model container [2023-02-17 03:54:57,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:54:57" (2/3) ... [2023-02-17 03:54:57,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756401e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 03:54:57, skipping insertion in model container [2023-02-17 03:54:57,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 03:54:57" (3/3) ... [2023-02-17 03:54:57,552 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c [2023-02-17 03:54:57,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 03:54:57,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-17 03:54:57,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 03:54:57,611 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;@2f123abf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 03:54:57,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-17 03:54:57,617 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.8125) internal successors, (29), 22 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) [2023-02-17 03:54:57,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 03:54:57,622 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:54:57,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 03:54:57,623 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)] === [2023-02-17 03:54:57,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:54:57,630 INFO L85 PathProgramCache]: Analyzing trace with hash 889513831, now seen corresponding path program 1 times [2023-02-17 03:54:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:54:57,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575004889] [2023-02-17 03:54:57,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:57,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:54:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:57,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:54:57,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575004889] [2023-02-17 03:54:57,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575004889] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:54:57,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:54:57,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 03:54:57,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264349498] [2023-02-17 03:54:57,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:54:57,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:54:57,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:54:57,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:54:57,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:54:57,857 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.8125) internal successors, (29), 22 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 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:54:57,933 INFO L93 Difference]: Finished difference Result 61 states and 79 transitions. [2023-02-17 03:54:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:54:57,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-17 03:54:57,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:54:57,968 INFO L225 Difference]: With dead ends: 61 [2023-02-17 03:54:57,968 INFO L226 Difference]: Without dead ends: 33 [2023-02-17 03:54:57,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:54:57,973 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 03:54:57,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 39 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 03:54:57,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-17 03:54:58,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23. [2023-02-17 03:54:58,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.588235294117647) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-02-17 03:54:58,007 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 6 [2023-02-17 03:54:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:54:58,007 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-02-17 03:54:58,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-02-17 03:54:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 03:54:58,008 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:54:58,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 03:54:58,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 03:54:58,009 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)] === [2023-02-17 03:54:58,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:54:58,010 INFO L85 PathProgramCache]: Analyzing trace with hash 889513869, now seen corresponding path program 1 times [2023-02-17 03:54:58,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:54:58,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376437961] [2023-02-17 03:54:58,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:58,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:54:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:58,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:58,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:54:58,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376437961] [2023-02-17 03:54:58,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376437961] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:54:58,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:54:58,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 03:54:58,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883181577] [2023-02-17 03:54:58,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:54:58,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:54:58,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:54:58,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:54:58,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:54:58,050 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:54:58,062 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2023-02-17 03:54:58,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:54:58,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-17 03:54:58,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:54:58,063 INFO L225 Difference]: With dead ends: 24 [2023-02-17 03:54:58,063 INFO L226 Difference]: Without dead ends: 23 [2023-02-17 03:54:58,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:54:58,065 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:54:58,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 18 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:54:58,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-17 03:54:58,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2023-02-17 03:54:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-02-17 03:54:58,076 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 6 [2023-02-17 03:54:58,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:54:58,077 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-02-17 03:54:58,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,077 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-02-17 03:54:58,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 03:54:58,078 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:54:58,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:54:58,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 03:54:58,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:54:58,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:54:58,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1805125066, now seen corresponding path program 1 times [2023-02-17 03:54:58,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:54:58,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093193737] [2023-02-17 03:54:58,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:58,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:54:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:58,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:58,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:54:58,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093193737] [2023-02-17 03:54:58,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093193737] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:54:58,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:54:58,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 03:54:58,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714906580] [2023-02-17 03:54:58,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:54:58,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:54:58,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:54:58,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:54:58,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:54:58,132 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:54:58,166 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2023-02-17 03:54:58,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:54:58,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-17 03:54:58,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:54:58,180 INFO L225 Difference]: With dead ends: 36 [2023-02-17 03:54:58,180 INFO L226 Difference]: Without dead ends: 35 [2023-02-17 03:54:58,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:54:58,181 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:54:58,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 27 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:54:58,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-17 03:54:58,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2023-02-17 03:54:58,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2023-02-17 03:54:58,192 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 7 [2023-02-17 03:54:58,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:54:58,193 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2023-02-17 03:54:58,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,193 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2023-02-17 03:54:58,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 03:54:58,194 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:54:58,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:54:58,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 03:54:58,195 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:54:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:54:58,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1805126220, now seen corresponding path program 1 times [2023-02-17 03:54:58,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:54:58,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285444216] [2023-02-17 03:54:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:58,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:54:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:58,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:54:58,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285444216] [2023-02-17 03:54:58,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285444216] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:54:58,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:54:58,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 03:54:58,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292969223] [2023-02-17 03:54:58,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:54:58,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:54:58,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:54:58,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:54:58,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:54:58,245 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:54:58,275 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-02-17 03:54:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:54:58,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-17 03:54:58,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:54:58,278 INFO L225 Difference]: With dead ends: 35 [2023-02-17 03:54:58,278 INFO L226 Difference]: Without dead ends: 34 [2023-02-17 03:54:58,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:54:58,280 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:54:58,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 31 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:54:58,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-17 03:54:58,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2023-02-17 03:54:58,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2023-02-17 03:54:58,290 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 7 [2023-02-17 03:54:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:54:58,290 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-02-17 03:54:58,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,290 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-02-17 03:54:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-17 03:54:58,291 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:54:58,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:54:58,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-17 03:54:58,292 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)] === [2023-02-17 03:54:58,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:54:58,293 INFO L85 PathProgramCache]: Analyzing trace with hash -440488050, now seen corresponding path program 1 times [2023-02-17 03:54:58,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:54:58,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24557190] [2023-02-17 03:54:58,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:58,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:54:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:58,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:58,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:54:58,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24557190] [2023-02-17 03:54:58,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24557190] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:54:58,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:54:58,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:54:58,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017285235] [2023-02-17 03:54:58,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:54:58,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 03:54:58,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:54:58,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 03:54:58,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 03:54:58,372 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:54:58,408 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-02-17 03:54:58,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 03:54:58,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-17 03:54:58,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:54:58,413 INFO L225 Difference]: With dead ends: 32 [2023-02-17 03:54:58,414 INFO L226 Difference]: Without dead ends: 30 [2023-02-17 03:54:58,415 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 [2023-02-17 03:54:58,416 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:54:58,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 16 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:54:58,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-17 03:54:58,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2023-02-17 03:54:58,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-02-17 03:54:58,425 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 9 [2023-02-17 03:54:58,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:54:58,425 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-02-17 03:54:58,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,426 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-02-17 03:54:58,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 03:54:58,426 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:54:58,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:54:58,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-17 03:54:58,427 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:54:58,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:54:58,427 INFO L85 PathProgramCache]: Analyzing trace with hash -770227592, now seen corresponding path program 1 times [2023-02-17 03:54:58,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:54:58,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877866934] [2023-02-17 03:54:58,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:58,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:54:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:58,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:58,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:54:58,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877866934] [2023-02-17 03:54:58,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877866934] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:54:58,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:54:58,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:54:58,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148674433] [2023-02-17 03:54:58,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:54:58,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 03:54:58,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:54:58,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 03:54:58,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 03:54:58,480 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2023-02-17 03:54:58,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:54:58,536 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2023-02-17 03:54:58,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 03:54:58,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 [2023-02-17 03:54:58,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:54:58,537 INFO L225 Difference]: With dead ends: 49 [2023-02-17 03:54:58,537 INFO L226 Difference]: Without dead ends: 47 [2023-02-17 03:54:58,537 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 [2023-02-17 03:54:58,538 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 28 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:54:58,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 34 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:54:58,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-17 03:54:58,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 32. [2023-02-17 03:54:58,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 31 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) [2023-02-17 03:54:58,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-02-17 03:54:58,544 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 10 [2023-02-17 03:54:58,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:54:58,545 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-02-17 03:54:58,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2023-02-17 03:54:58,545 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-02-17 03:54:58,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-17 03:54:58,545 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:54:58,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-02-17 03:54:58,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-17 03:54:58,546 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:54:58,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:54:58,547 INFO L85 PathProgramCache]: Analyzing trace with hash 826333811, now seen corresponding path program 1 times [2023-02-17 03:54:58,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:54:58,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652176676] [2023-02-17 03:54:58,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:58,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:54:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:58,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:54:58,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652176676] [2023-02-17 03:54:58,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652176676] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:54:58,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503746614] [2023-02-17 03:54:58,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:58,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:54:58,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:54:58,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 03:54:58,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 03:54:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:58,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-17 03:54:58,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:54:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:58,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:54:58,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:58,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503746614] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:54:58,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:54:58,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-17 03:54:58,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856383036] [2023-02-17 03:54:58,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:54:58,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 03:54:58,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:54:58,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 03:54:58,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-17 03:54:58,674 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:54:58,725 INFO L93 Difference]: Finished difference Result 77 states and 94 transitions. [2023-02-17 03:54:58,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 03:54:58,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-17 03:54:58,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:54:58,727 INFO L225 Difference]: With dead ends: 77 [2023-02-17 03:54:58,727 INFO L226 Difference]: Without dead ends: 76 [2023-02-17 03:54:58,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-17 03:54:58,728 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 48 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:54:58,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 50 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:54:58,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-02-17 03:54:58,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 44. [2023-02-17 03:54:58,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2023-02-17 03:54:58,735 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 11 [2023-02-17 03:54:58,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:54:58,736 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2023-02-17 03:54:58,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:58,736 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2023-02-17 03:54:58,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-17 03:54:58,737 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:54:58,737 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:54:58,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-17 03:54:58,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:54:58,942 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)] === [2023-02-17 03:54:58,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:54:58,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1456023871, now seen corresponding path program 1 times [2023-02-17 03:54:58,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:54:58,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374433214] [2023-02-17 03:54:58,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:58,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:54:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:58,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:58,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:54:58,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374433214] [2023-02-17 03:54:58,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374433214] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:54:58,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412908208] [2023-02-17 03:54:58,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:58,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:54:58,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:54:58,983 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 03:54:58,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 03:54:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:59,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-17 03:54:59,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:54:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:59,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:54:59,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:59,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412908208] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:54:59,027 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:54:59,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-17 03:54:59,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590591624] [2023-02-17 03:54:59,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:54:59,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 03:54:59,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:54:59,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 03:54:59,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-17 03:54:59,029 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:59,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:54:59,060 INFO L93 Difference]: Finished difference Result 114 states and 141 transitions. [2023-02-17 03:54:59,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 03:54:59,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 [2023-02-17 03:54:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:54:59,062 INFO L225 Difference]: With dead ends: 114 [2023-02-17 03:54:59,062 INFO L226 Difference]: Without dead ends: 113 [2023-02-17 03:54:59,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-17 03:54:59,063 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 38 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:54:59,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 58 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:54:59,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-02-17 03:54:59,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 86. [2023-02-17 03:54:59,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 83 states have (on average 1.3373493975903614) internal successors, (111), 85 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:59,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2023-02-17 03:54:59,076 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 12 [2023-02-17 03:54:59,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:54:59,076 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2023-02-17 03:54:59,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:59,076 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2023-02-17 03:54:59,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-17 03:54:59,077 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:54:59,077 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:54:59,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 03:54:59,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-02-17 03:54:59,282 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:54:59,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:54:59,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2134832436, now seen corresponding path program 1 times [2023-02-17 03:54:59,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:54:59,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239705660] [2023-02-17 03:54:59,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:59,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:54:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 03:54:59,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:54:59,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239705660] [2023-02-17 03:54:59,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239705660] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:54:59,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086628813] [2023-02-17 03:54:59,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:59,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:54:59,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:54:59,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 03:54:59,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 03:54:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:59,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 03:54:59,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:54:59,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:59,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:54:59,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:54:59,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086628813] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:54:59,411 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:54:59,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 8 [2023-02-17 03:54:59,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037480575] [2023-02-17 03:54:59,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:54:59,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-17 03:54:59,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:54:59,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-17 03:54:59,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-02-17 03:54:59,414 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 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) [2023-02-17 03:54:59,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:54:59,582 INFO L93 Difference]: Finished difference Result 265 states and 356 transitions. [2023-02-17 03:54:59,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-17 03:54:59,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 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 13 [2023-02-17 03:54:59,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:54:59,587 INFO L225 Difference]: With dead ends: 265 [2023-02-17 03:54:59,587 INFO L226 Difference]: Without dead ends: 263 [2023-02-17 03:54:59,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2023-02-17 03:54:59,590 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 157 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 03:54:59,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 68 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 03:54:59,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-02-17 03:54:59,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 123. [2023-02-17 03:54:59,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 121 states have (on average 1.3140495867768596) internal successors, (159), 122 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:59,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 159 transitions. [2023-02-17 03:54:59,623 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 159 transitions. Word has length 13 [2023-02-17 03:54:59,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:54:59,623 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 159 transitions. [2023-02-17 03:54:59,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 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) [2023-02-17 03:54:59,624 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 159 transitions. [2023-02-17 03:54:59,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-17 03:54:59,624 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:54:59,625 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:54:59,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-17 03:54:59,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:54:59,830 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:54:59,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:54:59,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2136076604, now seen corresponding path program 1 times [2023-02-17 03:54:59,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:54:59,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828375438] [2023-02-17 03:54:59,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:59,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:54:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 03:54:59,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:54:59,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828375438] [2023-02-17 03:54:59,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828375438] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:54:59,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776180973] [2023-02-17 03:54:59,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:54:59,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:54:59,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:54:59,873 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 03:54:59,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 03:54:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:54:59,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 03:54:59,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:54:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 03:54:59,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:54:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 03:54:59,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776180973] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:54:59,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:54:59,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2023-02-17 03:54:59,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812324962] [2023-02-17 03:54:59,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:54:59,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 03:54:59,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:54:59,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 03:54:59,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 03:54:59,954 INFO L87 Difference]: Start difference. First operand 123 states and 159 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:54:59,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:54:59,992 INFO L93 Difference]: Finished difference Result 196 states and 251 transitions. [2023-02-17 03:54:59,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 03:54:59,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 19 [2023-02-17 03:54:59,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:54:59,999 INFO L225 Difference]: With dead ends: 196 [2023-02-17 03:54:59,999 INFO L226 Difference]: Without dead ends: 136 [2023-02-17 03:55:00,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-02-17 03:55:00,002 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:55:00,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 55 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:55:00,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-02-17 03:55:00,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 129. [2023-02-17 03:55:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 127 states have (on average 1.2834645669291338) internal successors, (163), 128 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:00,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 163 transitions. [2023-02-17 03:55:00,026 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 163 transitions. Word has length 19 [2023-02-17 03:55:00,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:55:00,026 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 163 transitions. [2023-02-17 03:55:00,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:00,026 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 163 transitions. [2023-02-17 03:55:00,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-17 03:55:00,030 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:55:00,030 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:55:00,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-17 03:55:00,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:00,240 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)] === [2023-02-17 03:55:00,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:55:00,240 INFO L85 PathProgramCache]: Analyzing trace with hash 919182780, now seen corresponding path program 2 times [2023-02-17 03:55:00,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:55:00,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954824773] [2023-02-17 03:55:00,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:00,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:55:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-17 03:55:00,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:55:00,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954824773] [2023-02-17 03:55:00,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954824773] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:55:00,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568541068] [2023-02-17 03:55:00,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 03:55:00,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:00,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:55:00,268 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 03:55:00,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 03:55:00,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-17 03:55:00,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:55:00,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-17 03:55:00,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:55:00,300 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-17 03:55:00,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:55:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-17 03:55:00,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568541068] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:55:00,313 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:55:00,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-02-17 03:55:00,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101276443] [2023-02-17 03:55:00,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:55:00,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 03:55:00,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:55:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 03:55:00,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 03:55:00,314 INFO L87 Difference]: Start difference. First operand 129 states and 163 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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) [2023-02-17 03:55:00,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:55:00,332 INFO L93 Difference]: Finished difference Result 130 states and 163 transitions. [2023-02-17 03:55:00,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 03:55:00,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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 19 [2023-02-17 03:55:00,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:55:00,333 INFO L225 Difference]: With dead ends: 130 [2023-02-17 03:55:00,333 INFO L226 Difference]: Without dead ends: 111 [2023-02-17 03:55:00,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-17 03:55:00,334 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:55:00,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:55:00,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-02-17 03:55:00,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-02-17 03:55:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 110 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:00,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 141 transitions. [2023-02-17 03:55:00,342 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 141 transitions. Word has length 19 [2023-02-17 03:55:00,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:55:00,342 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 141 transitions. [2023-02-17 03:55:00,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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) [2023-02-17 03:55:00,343 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 141 transitions. [2023-02-17 03:55:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-17 03:55:00,343 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:55:00,344 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:55:00,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-17 03:55:00,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-17 03:55:00,548 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)] === [2023-02-17 03:55:00,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:55:00,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1391482387, now seen corresponding path program 1 times [2023-02-17 03:55:00,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:55:00,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051133028] [2023-02-17 03:55:00,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:00,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:55:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:00,629 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:00,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:55:00,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051133028] [2023-02-17 03:55:00,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051133028] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:55:00,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083341360] [2023-02-17 03:55:00,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:00,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:00,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:55:00,633 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 03:55:00,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-17 03:55:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:00,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-17 03:55:00,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:55:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:00,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:55:00,729 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:00,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083341360] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:55:00,730 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:55:00,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-17 03:55:00,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790262591] [2023-02-17 03:55:00,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:55:00,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-17 03:55:00,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:55:00,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-17 03:55:00,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-02-17 03:55:00,732 INFO L87 Difference]: Start difference. First operand 111 states and 141 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:01,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:55:01,107 INFO L93 Difference]: Finished difference Result 568 states and 708 transitions. [2023-02-17 03:55:01,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-02-17 03:55:01,108 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-17 03:55:01,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:55:01,110 INFO L225 Difference]: With dead ends: 568 [2023-02-17 03:55:01,111 INFO L226 Difference]: Without dead ends: 567 [2023-02-17 03:55:01,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=560, Invalid=1080, Unknown=0, NotChecked=0, Total=1640 [2023-02-17 03:55:01,112 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 313 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 03:55:01,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 88 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 03:55:01,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2023-02-17 03:55:01,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 215. [2023-02-17 03:55:01,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 213 states have (on average 1.2910798122065728) internal successors, (275), 214 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:01,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 275 transitions. [2023-02-17 03:55:01,129 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 275 transitions. Word has length 21 [2023-02-17 03:55:01,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:55:01,130 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 275 transitions. [2023-02-17 03:55:01,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:01,131 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 275 transitions. [2023-02-17 03:55:01,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 03:55:01,131 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:55:01,131 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-17 03:55:01,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-17 03:55:01,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:01,336 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:55:01,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:55:01,337 INFO L85 PathProgramCache]: Analyzing trace with hash 617489548, now seen corresponding path program 2 times [2023-02-17 03:55:01,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:55:01,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068362515] [2023-02-17 03:55:01,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:01,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:55:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-17 03:55:01,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:55:01,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068362515] [2023-02-17 03:55:01,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068362515] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:55:01,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411559225] [2023-02-17 03:55:01,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 03:55:01,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:01,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:55:01,366 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 03:55:01,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-17 03:55:01,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-17 03:55:01,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:55:01,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-17 03:55:01,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:55:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-17 03:55:01,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:55:01,407 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-17 03:55:01,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411559225] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:55:01,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:55:01,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-02-17 03:55:01,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951419526] [2023-02-17 03:55:01,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:55:01,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 03:55:01,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:55:01,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 03:55:01,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 03:55:01,410 INFO L87 Difference]: Start difference. First operand 215 states and 275 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:01,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:55:01,435 INFO L93 Difference]: Finished difference Result 215 states and 275 transitions. [2023-02-17 03:55:01,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 03:55:01,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 27 [2023-02-17 03:55:01,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:55:01,437 INFO L225 Difference]: With dead ends: 215 [2023-02-17 03:55:01,437 INFO L226 Difference]: Without dead ends: 214 [2023-02-17 03:55:01,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-17 03:55:01,439 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:55:01,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 21 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:55:01,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-02-17 03:55:01,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 69. [2023-02-17 03:55:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.2205882352941178) internal successors, (83), 68 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 83 transitions. [2023-02-17 03:55:01,448 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 83 transitions. Word has length 27 [2023-02-17 03:55:01,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:55:01,448 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 83 transitions. [2023-02-17 03:55:01,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 83 transitions. [2023-02-17 03:55:01,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-17 03:55:01,449 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:55:01,449 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:55:01,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-17 03:55:01,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:01,660 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:55:01,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:55:01,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1280724511, now seen corresponding path program 2 times [2023-02-17 03:55:01,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:55:01,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771621650] [2023-02-17 03:55:01,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:01,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:55:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-17 03:55:01,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:55:01,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771621650] [2023-02-17 03:55:01,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771621650] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:55:01,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882934381] [2023-02-17 03:55:01,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 03:55:01,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:01,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:55:01,722 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) [2023-02-17 03:55:01,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-17 03:55:01,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 03:55:01,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:55:01,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 03:55:01,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:55:01,784 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-17 03:55:01,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 03:55:01,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882934381] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:55:01,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 03:55:01,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-02-17 03:55:01,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885284700] [2023-02-17 03:55:01,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:55:01,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 03:55:01,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:55:01,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 03:55:01,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-02-17 03:55:01,786 INFO L87 Difference]: Start difference. First operand 69 states and 83 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:01,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:55:01,812 INFO L93 Difference]: Finished difference Result 136 states and 167 transitions. [2023-02-17 03:55:01,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 03:55:01,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-02-17 03:55:01,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:55:01,813 INFO L225 Difference]: With dead ends: 136 [2023-02-17 03:55:01,813 INFO L226 Difference]: Without dead ends: 81 [2023-02-17 03:55:01,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-02-17 03:55:01,815 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:55:01,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 23 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:55:01,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-02-17 03:55:01,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2023-02-17 03:55:01,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.2) internal successors, (90), 75 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:01,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 90 transitions. [2023-02-17 03:55:01,824 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 90 transitions. Word has length 34 [2023-02-17 03:55:01,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:55:01,825 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 90 transitions. [2023-02-17 03:55:01,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 90 transitions. [2023-02-17 03:55:01,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-17 03:55:01,827 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:55:01,827 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-17 03:55:01,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-17 03:55:02,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-17 03:55:02,033 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:55:02,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:55:02,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1245257587, now seen corresponding path program 3 times [2023-02-17 03:55:02,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:55:02,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116819411] [2023-02-17 03:55:02,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:02,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:55:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 03:55:02,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:55:02,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116819411] [2023-02-17 03:55:02,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116819411] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:55:02,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663034326] [2023-02-17 03:55:02,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 03:55:02,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:02,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:55:02,130 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) [2023-02-17 03:55:02,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-17 03:55:02,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-02-17 03:55:02,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:55:02,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 03:55:02,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:55:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-02-17 03:55:02,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:55:02,236 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-02-17 03:55:02,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663034326] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:55:02,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:55:02,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2023-02-17 03:55:02,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124723353] [2023-02-17 03:55:02,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:55:02,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-17 03:55:02,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:55:02,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-17 03:55:02,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-02-17 03:55:02,239 INFO L87 Difference]: Start difference. First operand 76 states and 90 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:02,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:55:02,531 INFO L93 Difference]: Finished difference Result 180 states and 204 transitions. [2023-02-17 03:55:02,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-17 03:55:02,531 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 0 states have call successors, (0), 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 36 [2023-02-17 03:55:02,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:55:02,531 INFO L225 Difference]: With dead ends: 180 [2023-02-17 03:55:02,532 INFO L226 Difference]: Without dead ends: 43 [2023-02-17 03:55:02,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=530, Invalid=1030, Unknown=0, NotChecked=0, Total=1560 [2023-02-17 03:55:02,533 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 257 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 03:55:02,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 61 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 03:55:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-17 03:55:02,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2023-02-17 03:55:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 39 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) [2023-02-17 03:55:02,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2023-02-17 03:55:02,539 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 36 [2023-02-17 03:55:02,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:55:02,539 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2023-02-17 03:55:02,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2023-02-17 03:55:02,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-17 03:55:02,540 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:55:02,540 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:55:02,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-17 03:55:02,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-17 03:55:02,745 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)] === [2023-02-17 03:55:02,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:55:02,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1735765953, now seen corresponding path program 3 times [2023-02-17 03:55:02,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:55:02,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145207103] [2023-02-17 03:55:02,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:02,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:55:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:02,888 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:02,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:55:02,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145207103] [2023-02-17 03:55:02,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145207103] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:55:02,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806719258] [2023-02-17 03:55:02,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 03:55:02,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:02,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:55:02,893 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) [2023-02-17 03:55:02,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-17 03:55:02,932 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2023-02-17 03:55:02,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:55:02,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-17 03:55:02,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:55:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:02,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:55:03,137 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:03,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806719258] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:55:03,138 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:55:03,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-17 03:55:03,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836744129] [2023-02-17 03:55:03,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:55:03,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-17 03:55:03,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:55:03,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-17 03:55:03,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=348, Unknown=0, NotChecked=0, Total=552 [2023-02-17 03:55:03,140 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 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) [2023-02-17 03:55:03,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:55:03,568 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2023-02-17 03:55:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-17 03:55:03,569 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 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 36 [2023-02-17 03:55:03,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:55:03,569 INFO L225 Difference]: With dead ends: 140 [2023-02-17 03:55:03,569 INFO L226 Difference]: Without dead ends: 73 [2023-02-17 03:55:03,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 52 SyntacticMatches, 8 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=904, Invalid=1748, Unknown=0, NotChecked=0, Total=2652 [2023-02-17 03:55:03,571 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 226 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 03:55:03,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 80 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 03:55:03,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-02-17 03:55:03,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2023-02-17 03:55:03,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 69 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:03,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2023-02-17 03:55:03,583 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 36 [2023-02-17 03:55:03,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:55:03,583 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2023-02-17 03:55:03,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 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) [2023-02-17 03:55:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2023-02-17 03:55:03,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-02-17 03:55:03,584 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:55:03,584 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:55:03,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-17 03:55:03,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-17 03:55:03,794 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)] === [2023-02-17 03:55:03,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:55:03,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1527112257, now seen corresponding path program 4 times [2023-02-17 03:55:03,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:55:03,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406407752] [2023-02-17 03:55:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:03,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:55:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:04,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:55:04,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406407752] [2023-02-17 03:55:04,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406407752] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:55:04,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460088378] [2023-02-17 03:55:04,141 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 03:55:04,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:04,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:55:04,142 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) [2023-02-17 03:55:04,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-17 03:55:04,185 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 03:55:04,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:55:04,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-17 03:55:04,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:55:04,395 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:04,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:55:04,878 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:04,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460088378] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:55:04,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:55:04,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 43 [2023-02-17 03:55:04,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057603082] [2023-02-17 03:55:04,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:55:04,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-02-17 03:55:04,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:55:04,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-02-17 03:55:04,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=794, Invalid=1098, Unknown=0, NotChecked=0, Total=1892 [2023-02-17 03:55:04,881 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand has 44 states, 43 states have (on average 3.0232558139534884) internal successors, (130), 44 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) [2023-02-17 03:55:06,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:55:06,222 INFO L93 Difference]: Finished difference Result 260 states and 300 transitions. [2023-02-17 03:55:06,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-02-17 03:55:06,223 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 3.0232558139534884) internal successors, (130), 44 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 66 [2023-02-17 03:55:06,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:55:06,223 INFO L225 Difference]: With dead ends: 260 [2023-02-17 03:55:06,223 INFO L226 Difference]: Without dead ends: 133 [2023-02-17 03:55:06,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 92 SyntacticMatches, 18 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2227 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3499, Invalid=6803, Unknown=0, NotChecked=0, Total=10302 [2023-02-17 03:55:06,227 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 456 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 03:55:06,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 128 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 03:55:06,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-02-17 03:55:06,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2023-02-17 03:55:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.0155038759689923) internal successors, (131), 129 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:06,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 131 transitions. [2023-02-17 03:55:06,246 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 131 transitions. Word has length 66 [2023-02-17 03:55:06,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:55:06,247 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 131 transitions. [2023-02-17 03:55:06,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 3.0232558139534884) internal successors, (130), 44 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) [2023-02-17 03:55:06,248 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 131 transitions. [2023-02-17 03:55:06,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-02-17 03:55:06,249 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:55:06,249 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:55:06,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-17 03:55:06,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-17 03:55:06,454 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:55:06,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:55:06,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1915738303, now seen corresponding path program 5 times [2023-02-17 03:55:06,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:55:06,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367279223] [2023-02-17 03:55:06,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:06,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:55:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:07,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 0 proven. 2148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:07,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:55:07,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367279223] [2023-02-17 03:55:07,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367279223] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:55:07,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163502876] [2023-02-17 03:55:07,479 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 03:55:07,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:07,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:55:07,485 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) [2023-02-17 03:55:07,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-17 03:55:07,560 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 40 check-sat command(s) [2023-02-17 03:55:07,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:55:07,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 42 conjunts are in the unsatisfiable core [2023-02-17 03:55:07,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:55:08,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 0 proven. 2148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:08,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:55:09,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 0 proven. 2148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:09,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163502876] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:55:09,975 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:55:09,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 83 [2023-02-17 03:55:09,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99097269] [2023-02-17 03:55:09,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:55:09,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2023-02-17 03:55:09,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:55:09,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2023-02-17 03:55:09,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3174, Invalid=3798, Unknown=0, NotChecked=0, Total=6972 [2023-02-17 03:55:09,980 INFO L87 Difference]: Start difference. First operand 130 states and 131 transitions. Second operand has 84 states, 83 states have (on average 3.0120481927710845) internal successors, (250), 84 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) [2023-02-17 03:55:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:55:14,027 INFO L93 Difference]: Finished difference Result 500 states and 580 transitions. [2023-02-17 03:55:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2023-02-17 03:55:14,028 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 83 states have (on average 3.0120481927710845) internal successors, (250), 84 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 126 [2023-02-17 03:55:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:55:14,029 INFO L225 Difference]: With dead ends: 500 [2023-02-17 03:55:14,030 INFO L226 Difference]: Without dead ends: 253 [2023-02-17 03:55:14,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 172 SyntacticMatches, 38 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9247 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=13789, Invalid=26813, Unknown=0, NotChecked=0, Total=40602 [2023-02-17 03:55:14,039 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1688 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 03:55:14,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 181 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 03:55:14,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-02-17 03:55:14,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 250. [2023-02-17 03:55:14,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 1.0080321285140563) internal successors, (251), 249 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:14,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 251 transitions. [2023-02-17 03:55:14,071 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 251 transitions. Word has length 126 [2023-02-17 03:55:14,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:55:14,072 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 251 transitions. [2023-02-17 03:55:14,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 83 states have (on average 3.0120481927710845) internal successors, (250), 84 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) [2023-02-17 03:55:14,072 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 251 transitions. [2023-02-17 03:55:14,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-02-17 03:55:14,074 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:55:14,074 INFO L195 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:55:14,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-17 03:55:14,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-17 03:55:14,280 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)] === [2023-02-17 03:55:14,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:55:14,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1335086783, now seen corresponding path program 6 times [2023-02-17 03:55:14,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:55:14,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544214835] [2023-02-17 03:55:14,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:14,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:55:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 9088 backedges. 0 proven. 9088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:18,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:55:18,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544214835] [2023-02-17 03:55:18,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544214835] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:55:18,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822905238] [2023-02-17 03:55:18,005 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 03:55:18,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:18,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:55:18,006 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) [2023-02-17 03:55:18,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-17 03:55:18,119 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 80 check-sat command(s) [2023-02-17 03:55:18,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:55:18,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 82 conjunts are in the unsatisfiable core [2023-02-17 03:55:18,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:55:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 9088 backedges. 0 proven. 9088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:20,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:55:26,267 INFO L134 CoverageAnalysis]: Checked inductivity of 9088 backedges. 0 proven. 9088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:26,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822905238] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:55:26,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:55:26,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82, 82] total 163 [2023-02-17 03:55:26,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208324979] [2023-02-17 03:55:26,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:55:26,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 164 states [2023-02-17 03:55:26,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:55:26,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2023-02-17 03:55:26,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12734, Invalid=13998, Unknown=0, NotChecked=0, Total=26732 [2023-02-17 03:55:26,276 INFO L87 Difference]: Start difference. First operand 250 states and 251 transitions. Second operand has 164 states, 163 states have (on average 3.0061349693251533) internal successors, (490), 164 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:41,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:55:41,977 INFO L93 Difference]: Finished difference Result 980 states and 1140 transitions. [2023-02-17 03:55:41,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2023-02-17 03:55:41,978 INFO L78 Accepts]: Start accepts. Automaton has has 164 states, 163 states have (on average 3.0061349693251533) internal successors, (490), 164 states have internal predecessors, (490), 0 states have call successors, (0), 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 246 [2023-02-17 03:55:41,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:55:41,980 INFO L225 Difference]: With dead ends: 980 [2023-02-17 03:55:41,980 INFO L226 Difference]: Without dead ends: 493 [2023-02-17 03:55:41,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 332 SyntacticMatches, 78 SemanticMatches, 400 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37687 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=54769, Invalid=106433, Unknown=0, NotChecked=0, Total=161202 [2023-02-17 03:55:41,993 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3461 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3461 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-17 03:55:41,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3461 Valid, 325 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-17 03:55:41,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-02-17 03:55:42,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 490. [2023-02-17 03:55:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 1.0040899795501022) internal successors, (491), 489 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:42,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 491 transitions. [2023-02-17 03:55:42,052 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 491 transitions. Word has length 246 [2023-02-17 03:55:42,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:55:42,053 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 491 transitions. [2023-02-17 03:55:42,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 164 states, 163 states have (on average 3.0061349693251533) internal successors, (490), 164 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:55:42,053 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 491 transitions. [2023-02-17 03:55:42,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2023-02-17 03:55:42,058 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:55:42,059 INFO L195 NwaCegarLoop]: trace histogram [158, 158, 158, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:55:42,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-17 03:55:42,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:42,264 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)] === [2023-02-17 03:55:42,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:55:42,264 INFO L85 PathProgramCache]: Analyzing trace with hash -750929217, now seen corresponding path program 7 times [2023-02-17 03:55:42,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:55:42,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691250639] [2023-02-17 03:55:42,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:55:42,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:55:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 37368 backedges. 0 proven. 37368 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:55:55,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:55:55,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691250639] [2023-02-17 03:55:55,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691250639] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:55:55,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192666866] [2023-02-17 03:55:55,345 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-17 03:55:55,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:55:55,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:55:55,346 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) [2023-02-17 03:55:55,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-17 03:55:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:55:55,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 162 conjunts are in the unsatisfiable core [2023-02-17 03:55:55,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:56:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 37368 backedges. 0 proven. 37368 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:56:03,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:56:27,071 INFO L134 CoverageAnalysis]: Checked inductivity of 37368 backedges. 0 proven. 37368 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:56:27,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192666866] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:56:27,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:56:27,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [162, 162, 162] total 323 [2023-02-17 03:56:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849685586] [2023-02-17 03:56:27,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:56:27,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 324 states [2023-02-17 03:56:27,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:56:27,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 324 interpolants. [2023-02-17 03:56:27,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51054, Invalid=53598, Unknown=0, NotChecked=0, Total=104652 [2023-02-17 03:56:27,088 INFO L87 Difference]: Start difference. First operand 490 states and 491 transitions. Second operand has 324 states, 323 states have (on average 3.003095975232198) internal successors, (970), 324 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:57:37,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:57:37,414 INFO L93 Difference]: Finished difference Result 1940 states and 2260 transitions. [2023-02-17 03:57:37,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 481 states. [2023-02-17 03:57:37,415 INFO L78 Accepts]: Start accepts. Automaton has has 324 states, 323 states have (on average 3.003095975232198) internal successors, (970), 324 states have internal predecessors, (970), 0 states have call successors, (0), 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 486 [2023-02-17 03:57:37,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:57:37,419 INFO L225 Difference]: With dead ends: 1940 [2023-02-17 03:57:37,419 INFO L226 Difference]: Without dead ends: 973 [2023-02-17 03:57:37,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1610 GetRequests, 652 SyntacticMatches, 158 SemanticMatches, 800 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152167 ImplicationChecksByTransitivity, 95.3s TimeCoverageRelationStatistics Valid=218329, Invalid=424073, Unknown=0, NotChecked=0, Total=642402 [2023-02-17 03:57:37,459 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6095 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6095 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-17 03:57:37,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6095 Valid, 577 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-17 03:57:37,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2023-02-17 03:57:37,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 970. [2023-02-17 03:57:37,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 969 states have (on average 1.0020639834881322) internal successors, (971), 969 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:57:37,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 971 transitions. [2023-02-17 03:57:37,597 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 971 transitions. Word has length 486 [2023-02-17 03:57:37,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:57:37,601 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 971 transitions. [2023-02-17 03:57:37,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 324 states, 323 states have (on average 3.003095975232198) internal successors, (970), 324 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 03:57:37,605 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 971 transitions. [2023-02-17 03:57:37,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 967 [2023-02-17 03:57:37,630 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:57:37,630 INFO L195 NwaCegarLoop]: trace histogram [318, 318, 318, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:57:37,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-02-17 03:57:37,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:57:37,836 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 03:57:37,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:57:37,836 INFO L85 PathProgramCache]: Analyzing trace with hash -434531649, now seen corresponding path program 8 times [2023-02-17 03:57:37,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:57:37,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131252549] [2023-02-17 03:57:37,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:57:37,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:57:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:58:35,464 INFO L134 CoverageAnalysis]: Checked inductivity of 151528 backedges. 0 proven. 151528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:58:35,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:58:35,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131252549] [2023-02-17 03:58:35,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131252549] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:58:35,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971783043] [2023-02-17 03:58:35,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 03:58:35,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:58:35,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:58:35,466 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) [2023-02-17 03:58:35,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-17 03:58:35,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 03:58:35,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:58:35,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 322 conjunts are in the unsatisfiable core [2023-02-17 03:58:35,802 INFO L286 TraceCheckSpWp]: Computing forward predicates...