./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/rec_counter1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/rec_counter1.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 de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 09:27:13,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 09:27:13,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 09:27:13,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 09:27:13,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 09:27:13,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 09:27:13,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 09:27:13,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 09:27:13,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 09:27:13,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 09:27:13,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 09:27:13,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 09:27:13,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 09:27:13,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 09:27:13,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 09:27:13,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 09:27:13,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 09:27:13,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 09:27:13,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 09:27:13,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 09:27:13,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 09:27:13,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 09:27:13,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 09:27:13,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 09:27:13,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 09:27:13,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 09:27:13,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 09:27:13,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 09:27:13,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 09:27:13,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 09:27:13,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 09:27:13,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 09:27:13,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 09:27:13,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 09:27:13,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 09:27:13,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 09:27:13,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 09:27:13,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 09:27:13,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 09:27:13,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 09:27:13,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 09:27:13,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-17 09:27:13,957 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 09:27:13,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 09:27:13,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 09:27:13,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 09:27:13,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 09:27:13,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 09:27:13,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 09:27:13,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 09:27:13,959 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 09:27:13,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 09:27:13,960 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 09:27:13,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 09:27:13,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 09:27:13,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 09:27:13,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 09:27:13,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 09:27:13,961 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-17 09:27:13,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 09:27:13,961 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 09:27:13,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 09:27:13,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 09:27:13,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 09:27:13,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 09:27:13,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:27:13,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 09:27:13,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 09:27:13,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 09:27:13,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 09:27:13,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 09:27:13,963 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 09:27:13,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 09:27:13,963 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 09:27:13,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 09:27:13,979 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 09:27:13,979 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b [2023-02-17 09:27:14,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 09:27:14,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 09:27:14,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 09:27:14,152 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 09:27:14,154 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 09:27:14,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/rec_counter1.c [2023-02-17 09:27:15,102 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 09:27:15,278 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 09:27:15,278 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter1.c [2023-02-17 09:27:15,283 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab3e99f20/0494b4d14d014a82bc8c63693f0ad145/FLAGaa78a8927 [2023-02-17 09:27:15,294 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab3e99f20/0494b4d14d014a82bc8c63693f0ad145 [2023-02-17 09:27:15,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 09:27:15,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 09:27:15,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 09:27:15,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 09:27:15,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 09:27:15,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c83a53d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15, skipping insertion in model container [2023-02-17 09:27:15,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 09:27:15,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 09:27:15,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:27:15,438 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 09:27:15,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:27:15,461 INFO L208 MainTranslator]: Completed translation [2023-02-17 09:27:15,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15 WrapperNode [2023-02-17 09:27:15,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 09:27:15,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 09:27:15,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 09:27:15,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 09:27:15,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,485 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2023-02-17 09:27:15,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 09:27:15,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 09:27:15,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 09:27:15,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 09:27:15,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,506 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 09:27:15,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 09:27:15,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 09:27:15,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 09:27:15,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (1/1) ... [2023-02-17 09:27:15,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:27:15,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:15,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-17 09:27:15,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-17 09:27:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2023-02-17 09:27:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2023-02-17 09:27:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 09:27:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 09:27:15,605 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 09:27:15,606 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 09:27:15,678 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 09:27:15,683 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 09:27:15,683 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 09:27:15,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:27:15 BoogieIcfgContainer [2023-02-17 09:27:15,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 09:27:15,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 09:27:15,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 09:27:15,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 09:27:15,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 09:27:15" (1/3) ... [2023-02-17 09:27:15,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10346b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:27:15, skipping insertion in model container [2023-02-17 09:27:15,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:27:15" (2/3) ... [2023-02-17 09:27:15,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10346b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:27:15, skipping insertion in model container [2023-02-17 09:27:15,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:27:15" (3/3) ... [2023-02-17 09:27:15,690 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_counter1.c [2023-02-17 09:27:15,701 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 09:27:15,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-17 09:27:15,743 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 09:27:15,752 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;@46a7238b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 09:27:15,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-17 09:27:15,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 17 states have (on average 1.588235294117647) internal successors, (27), 23 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:27:15,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 09:27:15,763 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:15,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:15,764 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:15,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:15,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1088965814, now seen corresponding path program 1 times [2023-02-17 09:27:15,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:15,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634460716] [2023-02-17 09:27:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:15,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:16,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:27:16,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:16,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634460716] [2023-02-17 09:27:16,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634460716] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:27:16,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:27:16,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 09:27:16,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750386824] [2023-02-17 09:27:16,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:27:16,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 09:27:16,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:16,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 09:27:16,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:27:16,053 INFO L87 Difference]: Start difference. First operand has 27 states, 17 states have (on average 1.588235294117647) internal successors, (27), 23 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:27:16,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:16,161 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2023-02-17 09:27:16,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 09:27:16,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-17 09:27:16,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:16,169 INFO L225 Difference]: With dead ends: 65 [2023-02-17 09:27:16,169 INFO L226 Difference]: Without dead ends: 39 [2023-02-17 09:27:16,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 09:27:16,174 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 35 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:16,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 98 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:27:16,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-17 09:27:16,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2023-02-17 09:27:16,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 29 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:27:16,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2023-02-17 09:27:16,205 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2023-02-17 09:27:16,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:16,205 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-02-17 09:27:16,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:27:16,206 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-02-17 09:27:16,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-17 09:27:16,206 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:16,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:16,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 09:27:16,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:16,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:16,209 INFO L85 PathProgramCache]: Analyzing trace with hash -601798096, now seen corresponding path program 1 times [2023-02-17 09:27:16,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:16,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514054613] [2023-02-17 09:27:16,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:16,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:27:16,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:16,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514054613] [2023-02-17 09:27:16,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514054613] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:27:16,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:27:16,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 09:27:16,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976350320] [2023-02-17 09:27:16,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:27:16,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 09:27:16,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:16,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 09:27:16,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:27:16,295 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:27:16,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:16,337 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2023-02-17 09:27:16,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 09:27:16,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-17 09:27:16,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:16,339 INFO L225 Difference]: With dead ends: 34 [2023-02-17 09:27:16,340 INFO L226 Difference]: Without dead ends: 33 [2023-02-17 09:27:16,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 09:27:16,342 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 33 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:16,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 33 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:27:16,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-17 09:27:16,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-02-17 09:27:16,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:27:16,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-02-17 09:27:16,353 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 8 [2023-02-17 09:27:16,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:16,354 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-02-17 09:27:16,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:27:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-02-17 09:27:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-17 09:27:16,356 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:16,356 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:16,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 09:27:16,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:16,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:16,363 INFO L85 PathProgramCache]: Analyzing trace with hash -114082075, now seen corresponding path program 1 times [2023-02-17 09:27:16,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:16,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749215423] [2023-02-17 09:27:16,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:16,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:16,463 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 09:27:16,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:16,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749215423] [2023-02-17 09:27:16,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749215423] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:16,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26269087] [2023-02-17 09:27:16,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:16,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:16,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:16,479 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:27:16,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 09:27:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:16,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-17 09:27:16,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:16,600 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 09:27:16,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:16,654 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 09:27:16,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26269087] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:16,655 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:16,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-17 09:27:16,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678322506] [2023-02-17 09:27:16,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:16,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-17 09:27:16,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:16,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-17 09:27:16,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-17 09:27:16,662 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:27:16,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:16,740 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2023-02-17 09:27:16,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 09:27:16,741 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 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 09:27:16,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:16,743 INFO L225 Difference]: With dead ends: 39 [2023-02-17 09:27:16,744 INFO L226 Difference]: Without dead ends: 38 [2023-02-17 09:27:16,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-02-17 09:27:16,747 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 90 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:16,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 75 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:27:16,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-17 09:27:16,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2023-02-17 09:27:16,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:27:16,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-02-17 09:27:16,760 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 12 [2023-02-17 09:27:16,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:16,761 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-02-17 09:27:16,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 09:27:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-02-17 09:27:16,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-17 09:27:16,763 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:16,763 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:16,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-17 09:27:16,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:16,972 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:16,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1647452250, now seen corresponding path program 1 times [2023-02-17 09:27:16,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:16,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886428528] [2023-02-17 09:27:16,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:16,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 09:27:17,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:17,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886428528] [2023-02-17 09:27:17,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886428528] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:27:17,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:27:17,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 09:27:17,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075868473] [2023-02-17 09:27:17,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:27:17,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 09:27:17,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:17,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 09:27:17,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:27:17,027 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:27:17,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:17,034 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2023-02-17 09:27:17,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 09:27:17,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-02-17 09:27:17,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:17,035 INFO L225 Difference]: With dead ends: 34 [2023-02-17 09:27:17,036 INFO L226 Difference]: Without dead ends: 33 [2023-02-17 09:27:17,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:27:17,037 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:17,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 34 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:27:17,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-17 09:27:17,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2023-02-17 09:27:17,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 26 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:27:17,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-02-17 09:27:17,053 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 16 [2023-02-17 09:27:17,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:17,054 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-02-17 09:27:17,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:27:17,054 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-02-17 09:27:17,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-17 09:27:17,055 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:17,055 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:17,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-17 09:27:17,056 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:17,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:17,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1647452195, now seen corresponding path program 1 times [2023-02-17 09:27:17,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:17,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941083357] [2023-02-17 09:27:17,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:17,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 09:27:17,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:17,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941083357] [2023-02-17 09:27:17,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941083357] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:27:17,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:27:17,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 09:27:17,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427374464] [2023-02-17 09:27:17,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:27:17,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 09:27:17,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:17,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 09:27:17,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:27:17,107 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:27:17,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:17,114 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2023-02-17 09:27:17,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 09:27:17,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-02-17 09:27:17,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:17,117 INFO L225 Difference]: With dead ends: 31 [2023-02-17 09:27:17,117 INFO L226 Difference]: Without dead ends: 30 [2023-02-17 09:27:17,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:27:17,118 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:17,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:27:17,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-17 09:27:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-17 09:27:17,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:27:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-02-17 09:27:17,123 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 16 [2023-02-17 09:27:17,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:17,124 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-02-17 09:27:17,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:27:17,124 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-02-17 09:27:17,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-17 09:27:17,125 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:17,125 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:17,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-17 09:27:17,127 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:17,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:17,127 INFO L85 PathProgramCache]: Analyzing trace with hash 468587862, now seen corresponding path program 1 times [2023-02-17 09:27:17,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:17,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651756673] [2023-02-17 09:27:17,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:17,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 09:27:17,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:17,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651756673] [2023-02-17 09:27:17,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651756673] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:27:17,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:27:17,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 09:27:17,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678584822] [2023-02-17 09:27:17,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:27:17,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 09:27:17,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:17,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 09:27:17,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 09:27:17,165 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:27:17,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:17,190 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2023-02-17 09:27:17,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 09:27:17,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-02-17 09:27:17,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:17,193 INFO L225 Difference]: With dead ends: 44 [2023-02-17 09:27:17,195 INFO L226 Difference]: Without dead ends: 41 [2023-02-17 09:27:17,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 09:27:17,196 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 9 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:17,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 51 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:27:17,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-17 09:27:17,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2023-02-17 09:27:17,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.25) internal successors, (35), 29 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-17 09:27:17,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2023-02-17 09:27:17,202 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 17 [2023-02-17 09:27:17,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:17,202 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2023-02-17 09:27:17,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:27:17,203 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2023-02-17 09:27:17,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-17 09:27:17,203 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:17,203 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:17,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-17 09:27:17,204 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:17,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:17,204 INFO L85 PathProgramCache]: Analyzing trace with hash 468589560, now seen corresponding path program 1 times [2023-02-17 09:27:17,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:17,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8977873] [2023-02-17 09:27:17,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:17,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-17 09:27:17,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:17,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8977873] [2023-02-17 09:27:17,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8977873] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:27:17,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:27:17,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 09:27:17,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547379691] [2023-02-17 09:27:17,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:27:17,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 09:27:17,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:17,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 09:27:17,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:27:17,262 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:27:17,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:17,277 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2023-02-17 09:27:17,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 09:27:17,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-02-17 09:27:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:17,278 INFO L225 Difference]: With dead ends: 60 [2023-02-17 09:27:17,278 INFO L226 Difference]: Without dead ends: 38 [2023-02-17 09:27:17,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-17 09:27:17,279 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 73 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 09:27:17,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 73 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:27:17,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-17 09:27:17,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-02-17 09:27:17,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 09:27:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2023-02-17 09:27:17,285 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 17 [2023-02-17 09:27:17,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:17,285 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2023-02-17 09:27:17,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-17 09:27:17,286 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2023-02-17 09:27:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-17 09:27:17,286 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:17,287 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:17,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-17 09:27:17,287 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:17,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:17,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1297249887, now seen corresponding path program 1 times [2023-02-17 09:27:17,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:17,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147824862] [2023-02-17 09:27:17,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:17,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,475 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 09:27:17,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:17,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147824862] [2023-02-17 09:27:17,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147824862] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:17,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819278958] [2023-02-17 09:27:17,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:17,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:17,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:17,494 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:27:17,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 09:27:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-17 09:27:17,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:17,587 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 09:27:17,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 09:27:17,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819278958] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:27:17,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 09:27:17,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2023-02-17 09:27:17,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180137042] [2023-02-17 09:27:17,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:27:17,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 09:27:17,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:17,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 09:27:17,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-02-17 09:27:17,591 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-17 09:27:17,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:17,625 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-02-17 09:27:17,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-17 09:27:17,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-02-17 09:27:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:17,626 INFO L225 Difference]: With dead ends: 38 [2023-02-17 09:27:17,626 INFO L226 Difference]: Without dead ends: 37 [2023-02-17 09:27:17,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-02-17 09:27:17,627 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 7 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:17,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 73 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:27:17,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-17 09:27:17,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-02-17 09:27:17,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-17 09:27:17,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2023-02-17 09:27:17,638 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 28 [2023-02-17 09:27:17,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:17,638 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2023-02-17 09:27:17,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-17 09:27:17,639 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-02-17 09:27:17,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-17 09:27:17,640 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:17,640 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:17,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 09:27:17,844 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 09:27:17,844 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:17,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:17,845 INFO L85 PathProgramCache]: Analyzing trace with hash 255701234, now seen corresponding path program 1 times [2023-02-17 09:27:17,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:17,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125613519] [2023-02-17 09:27:17,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:17,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,918 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-17 09:27:17,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:17,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125613519] [2023-02-17 09:27:17,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125613519] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:17,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499930494] [2023-02-17 09:27:17,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:17,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:17,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:17,920 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:27:17,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 09:27:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:17,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-17 09:27:17,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:17,971 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-17 09:27:17,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-17 09:27:18,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499930494] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:18,009 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:18,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2023-02-17 09:27:18,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975552995] [2023-02-17 09:27:18,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:18,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-17 09:27:18,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:18,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-17 09:27:18,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-02-17 09:27:18,010 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-17 09:27:18,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:18,078 INFO L93 Difference]: Finished difference Result 82 states and 97 transitions. [2023-02-17 09:27:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-17 09:27:18,078 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2023-02-17 09:27:18,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:18,079 INFO L225 Difference]: With dead ends: 82 [2023-02-17 09:27:18,079 INFO L226 Difference]: Without dead ends: 65 [2023-02-17 09:27:18,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2023-02-17 09:27:18,080 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:18,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 158 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:27:18,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-02-17 09:27:18,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2023-02-17 09:27:18,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 47 states have internal predecessors, (56), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-17 09:27:18,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2023-02-17 09:27:18,085 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 31 [2023-02-17 09:27:18,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:18,086 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2023-02-17 09:27:18,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-17 09:27:18,086 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2023-02-17 09:27:18,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-02-17 09:27:18,087 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:18,087 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:18,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-17 09:27:18,292 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 09:27:18,292 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:18,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:18,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1077552402, now seen corresponding path program 2 times [2023-02-17 09:27:18,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:18,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018692454] [2023-02-17 09:27:18,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:18,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:18,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:27:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:18,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:18,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:18,518 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 34 proven. 19 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-02-17 09:27:18,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:18,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018692454] [2023-02-17 09:27:18,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018692454] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:18,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42586366] [2023-02-17 09:27:18,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 09:27:18,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:18,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:18,520 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:27:18,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 09:27:18,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 09:27:18,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:27:18,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-17 09:27:18,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:18,591 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 43 proven. 8 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-02-17 09:27:18,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:18,641 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-02-17 09:27:18,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42586366] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:18,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:18,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 15 [2023-02-17 09:27:18,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317267842] [2023-02-17 09:27:18,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:18,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-17 09:27:18,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:18,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-17 09:27:18,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-02-17 09:27:18,644 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-17 09:27:18,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:18,737 INFO L93 Difference]: Finished difference Result 103 states and 123 transitions. [2023-02-17 09:27:18,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-17 09:27:18,738 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2023-02-17 09:27:18,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:18,739 INFO L225 Difference]: With dead ends: 103 [2023-02-17 09:27:18,739 INFO L226 Difference]: Without dead ends: 66 [2023-02-17 09:27:18,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 135 SyntacticMatches, 12 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2023-02-17 09:27:18,740 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 20 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:18,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 191 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:27:18,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-02-17 09:27:18,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2023-02-17 09:27:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 56 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-17 09:27:18,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2023-02-17 09:27:18,745 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 69 [2023-02-17 09:27:18,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:18,745 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2023-02-17 09:27:18,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-17 09:27:18,746 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2023-02-17 09:27:18,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-02-17 09:27:18,746 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:18,747 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:18,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-17 09:27:18,951 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 09:27:18,951 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:18,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:18,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1613309538, now seen corresponding path program 3 times [2023-02-17 09:27:18,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:18,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90056878] [2023-02-17 09:27:18,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:18,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:27:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-02-17 09:27:19,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:19,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90056878] [2023-02-17 09:27:19,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90056878] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:19,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013003514] [2023-02-17 09:27:19,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 09:27:19,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:19,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:19,111 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:27:19,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 09:27:19,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-17 09:27:19,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:27:19,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-17 09:27:19,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:19,213 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-02-17 09:27:19,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:19,292 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-02-17 09:27:19,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013003514] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:19,292 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:19,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 24 [2023-02-17 09:27:19,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697018627] [2023-02-17 09:27:19,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:19,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-17 09:27:19,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:19,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-17 09:27:19,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2023-02-17 09:27:19,295 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 25 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-17 09:27:19,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:19,469 INFO L93 Difference]: Finished difference Result 121 states and 141 transitions. [2023-02-17 09:27:19,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-02-17 09:27:19,470 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 75 [2023-02-17 09:27:19,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:19,472 INFO L225 Difference]: With dead ends: 121 [2023-02-17 09:27:19,472 INFO L226 Difference]: Without dead ends: 103 [2023-02-17 09:27:19,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=511, Invalid=1559, Unknown=0, NotChecked=0, Total=2070 [2023-02-17 09:27:19,476 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 60 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:19,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 172 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:27:19,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-02-17 09:27:19,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2023-02-17 09:27:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 88 states have (on average 1.125) internal successors, (99), 88 states have internal predecessors, (99), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-17 09:27:19,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2023-02-17 09:27:19,487 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 75 [2023-02-17 09:27:19,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:19,487 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2023-02-17 09:27:19,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-17 09:27:19,487 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2023-02-17 09:27:19,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-02-17 09:27:19,491 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:19,492 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:19,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-17 09:27:19,696 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 09:27:19,697 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:19,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:19,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1842269305, now seen corresponding path program 4 times [2023-02-17 09:27:19,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:19,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728112356] [2023-02-17 09:27:19,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:19,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:27:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:19,931 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-02-17 09:27:19,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:19,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728112356] [2023-02-17 09:27:19,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728112356] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:19,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049070217] [2023-02-17 09:27:19,932 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 09:27:19,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:19,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:19,933 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:27:19,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-17 09:27:19,990 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 09:27:19,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:27:19,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-17 09:27:20,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 132 proven. 68 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-02-17 09:27:20,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:20,213 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 132 proven. 68 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-02-17 09:27:20,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049070217] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:20,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:20,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 34 [2023-02-17 09:27:20,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078634054] [2023-02-17 09:27:20,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:20,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-02-17 09:27:20,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:20,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-02-17 09:27:20,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=987, Unknown=0, NotChecked=0, Total=1190 [2023-02-17 09:27:20,216 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 35 states, 34 states have (on average 2.5294117647058822) internal successors, (86), 29 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2023-02-17 09:27:20,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:20,644 INFO L93 Difference]: Finished difference Result 212 states and 246 transitions. [2023-02-17 09:27:20,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-02-17 09:27:20,644 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.5294117647058822) internal successors, (86), 29 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 104 [2023-02-17 09:27:20,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:20,647 INFO L225 Difference]: With dead ends: 212 [2023-02-17 09:27:20,647 INFO L226 Difference]: Without dead ends: 165 [2023-02-17 09:27:20,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 197 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2439 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1620, Invalid=5186, Unknown=0, NotChecked=0, Total=6806 [2023-02-17 09:27:20,650 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 132 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:20,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 179 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:27:20,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-02-17 09:27:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 154. [2023-02-17 09:27:20,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 143 states have (on average 1.1538461538461537) internal successors, (165), 143 states have internal predecessors, (165), 3 states have call successors, (3), 2 states have call predecessors, (3), 7 states have return successors, (8), 8 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-17 09:27:20,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 176 transitions. [2023-02-17 09:27:20,667 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 176 transitions. Word has length 104 [2023-02-17 09:27:20,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:20,668 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 176 transitions. [2023-02-17 09:27:20,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.5294117647058822) internal successors, (86), 29 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2023-02-17 09:27:20,668 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 176 transitions. [2023-02-17 09:27:20,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-02-17 09:27:20,670 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:20,670 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 10, 9, 9, 9, 9, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:20,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-17 09:27:20,875 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 09:27:20,875 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:20,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:20,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1788602346, now seen corresponding path program 5 times [2023-02-17 09:27:20,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:20,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684640451] [2023-02-17 09:27:20,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:20,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:21,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:27:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:21,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:21,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:21,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:21,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:21,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:21,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 553 proven. 410 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-02-17 09:27:21,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:21,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684640451] [2023-02-17 09:27:21,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684640451] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:21,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154672693] [2023-02-17 09:27:21,568 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 09:27:21,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:21,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:21,586 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:27:21,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-17 09:27:21,646 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2023-02-17 09:27:21,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:27:21,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 27 conjunts are in the unsatisfiable core [2023-02-17 09:27:21,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:21,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 806 proven. 105 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-02-17 09:27:21,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:22,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 806 proven. 105 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-02-17 09:27:22,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154672693] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:22,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:22,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 27, 27] total 55 [2023-02-17 09:27:22,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829458195] [2023-02-17 09:27:22,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:22,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-02-17 09:27:22,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:22,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-02-17 09:27:22,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=2639, Unknown=0, NotChecked=0, Total=2970 [2023-02-17 09:27:22,313 INFO L87 Difference]: Start difference. First operand 154 states and 176 transitions. Second operand has 55 states, 55 states have (on average 2.1818181818181817) internal successors, (120), 48 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-17 09:27:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:23,168 INFO L93 Difference]: Finished difference Result 329 states and 381 transitions. [2023-02-17 09:27:23,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-02-17 09:27:23,168 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 2.1818181818181817) internal successors, (120), 48 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 165 [2023-02-17 09:27:23,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:23,171 INFO L225 Difference]: With dead ends: 329 [2023-02-17 09:27:23,171 INFO L226 Difference]: Without dead ends: 199 [2023-02-17 09:27:23,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 302 SyntacticMatches, 18 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4349 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2253, Invalid=10629, Unknown=0, NotChecked=0, Total=12882 [2023-02-17 09:27:23,177 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 476 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:23,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 286 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 09:27:23,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-02-17 09:27:23,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2023-02-17 09:27:23,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 186 states have (on average 1.1344086021505377) internal successors, (211), 186 states have internal predecessors, (211), 3 states have call successors, (3), 2 states have call predecessors, (3), 9 states have return successors, (10), 10 states have call predecessors, (10), 2 states have call successors, (10) [2023-02-17 09:27:23,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 224 transitions. [2023-02-17 09:27:23,187 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 224 transitions. Word has length 165 [2023-02-17 09:27:23,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:23,188 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 224 transitions. [2023-02-17 09:27:23,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 2.1818181818181817) internal successors, (120), 48 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-17 09:27:23,189 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 224 transitions. [2023-02-17 09:27:23,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-02-17 09:27:23,191 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:23,191 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:23,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-17 09:27:23,397 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 09:27:23,397 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:23,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:23,398 INFO L85 PathProgramCache]: Analyzing trace with hash 167579417, now seen corresponding path program 6 times [2023-02-17 09:27:23,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:23,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840271129] [2023-02-17 09:27:23,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:23,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:23,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:24,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:24,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:24,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:24,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:24,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:24,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:24,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:24,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 0 proven. 2050 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-02-17 09:27:24,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:24,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840271129] [2023-02-17 09:27:24,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840271129] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:24,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935389625] [2023-02-17 09:27:24,881 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 09:27:24,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:24,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:24,899 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 09:27:24,900 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 09:27:25,002 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2023-02-17 09:27:25,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:27:25,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-17 09:27:25,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 696 proven. 70 refuted. 0 times theorem prover too weak. 1748 trivial. 0 not checked. [2023-02-17 09:27:25,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:25,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 696 proven. 70 refuted. 0 times theorem prover too weak. 1748 trivial. 0 not checked. [2023-02-17 09:27:25,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935389625] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:25,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:25,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 17, 17] total 59 [2023-02-17 09:27:25,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942659967] [2023-02-17 09:27:25,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:25,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2023-02-17 09:27:25,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:25,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2023-02-17 09:27:25,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=2945, Unknown=0, NotChecked=0, Total=3540 [2023-02-17 09:27:25,561 INFO L87 Difference]: Start difference. First operand 199 states and 224 transitions. Second operand has 60 states, 59 states have (on average 2.288135593220339) internal successors, (135), 51 states have internal predecessors, (135), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-17 09:27:26,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:26,911 INFO L93 Difference]: Finished difference Result 316 states and 370 transitions. [2023-02-17 09:27:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-02-17 09:27:26,912 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 2.288135593220339) internal successors, (135), 51 states have internal predecessors, (135), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 210 [2023-02-17 09:27:26,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:26,913 INFO L225 Difference]: With dead ends: 316 [2023-02-17 09:27:26,913 INFO L226 Difference]: Without dead ends: 283 [2023-02-17 09:27:26,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 405 SyntacticMatches, 1 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9780 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=6371, Invalid=19389, Unknown=0, NotChecked=0, Total=25760 [2023-02-17 09:27:26,918 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 417 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:26,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 197 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 09:27:26,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-02-17 09:27:26,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 277. [2023-02-17 09:27:26,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 263 states have (on average 1.1520912547528517) internal successors, (303), 263 states have internal predecessors, (303), 3 states have call successors, (3), 2 states have call predecessors, (3), 10 states have return successors, (11), 11 states have call predecessors, (11), 2 states have call successors, (11) [2023-02-17 09:27:26,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 317 transitions. [2023-02-17 09:27:26,928 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 317 transitions. Word has length 210 [2023-02-17 09:27:26,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:26,928 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 317 transitions. [2023-02-17 09:27:26,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 2.288135593220339) internal successors, (135), 51 states have internal predecessors, (135), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-17 09:27:26,929 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 317 transitions. [2023-02-17 09:27:26,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-02-17 09:27:26,931 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:26,931 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:26,947 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 09:27:27,136 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 09:27:27,136 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:27,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:27,137 INFO L85 PathProgramCache]: Analyzing trace with hash -2102321518, now seen corresponding path program 7 times [2023-02-17 09:27:27,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:27,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066681561] [2023-02-17 09:27:27,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:27,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:27,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:27,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:27,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:28,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:28,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 4850 backedges. 0 proven. 3987 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2023-02-17 09:27:28,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:28,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066681561] [2023-02-17 09:27:28,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066681561] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:28,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802964945] [2023-02-17 09:27:28,299 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-17 09:27:28,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:28,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:28,300 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 09:27:28,330 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 09:27:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:28,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 30 conjunts are in the unsatisfiable core [2023-02-17 09:27:28,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:28,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4850 backedges. 27 proven. 3960 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2023-02-17 09:27:28,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 4850 backedges. 27 proven. 3960 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2023-02-17 09:27:29,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802964945] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:29,181 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:29,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30, 30] total 62 [2023-02-17 09:27:29,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684102597] [2023-02-17 09:27:29,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:29,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-02-17 09:27:29,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:29,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-02-17 09:27:29,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=688, Invalid=3218, Unknown=0, NotChecked=0, Total=3906 [2023-02-17 09:27:29,183 INFO L87 Difference]: Start difference. First operand 277 states and 317 transitions. Second operand has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 44 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 20 states have return successors, (20), 20 states have call predecessors, (20), 1 states have call successors, (20) [2023-02-17 09:27:29,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:29,629 INFO L93 Difference]: Finished difference Result 3082 states and 3580 transitions. [2023-02-17 09:27:29,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-02-17 09:27:29,629 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 44 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 20 states have return successors, (20), 20 states have call predecessors, (20), 1 states have call successors, (20) Word has length 269 [2023-02-17 09:27:29,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:29,636 INFO L225 Difference]: With dead ends: 3082 [2023-02-17 09:27:29,636 INFO L226 Difference]: Without dead ends: 2591 [2023-02-17 09:27:29,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 535 SyntacticMatches, 9 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5294 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=2167, Invalid=9605, Unknown=0, NotChecked=0, Total=11772 [2023-02-17 09:27:29,640 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 158 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:29,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 231 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:27:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2023-02-17 09:27:29,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 1297. [2023-02-17 09:27:29,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 1233 states have (on average 1.154095701540957) internal successors, (1423), 1233 states have internal predecessors, (1423), 3 states have call successors, (3), 2 states have call predecessors, (3), 60 states have return successors, (61), 61 states have call predecessors, (61), 2 states have call successors, (61) [2023-02-17 09:27:29,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1487 transitions. [2023-02-17 09:27:29,696 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1487 transitions. Word has length 269 [2023-02-17 09:27:29,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:29,697 INFO L495 AbstractCegarLoop]: Abstraction has 1297 states and 1487 transitions. [2023-02-17 09:27:29,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 44 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 20 states have return successors, (20), 20 states have call predecessors, (20), 1 states have call successors, (20) [2023-02-17 09:27:29,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1487 transitions. [2023-02-17 09:27:29,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2023-02-17 09:27:29,703 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:29,703 INFO L195 NwaCegarLoop]: trace histogram [71, 71, 71, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:29,721 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 09:27:29,908 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 09:27:29,909 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:29,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:29,910 INFO L85 PathProgramCache]: Analyzing trace with hash -57524158, now seen corresponding path program 8 times [2023-02-17 09:27:29,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:29,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654171672] [2023-02-17 09:27:29,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:29,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:27:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:30,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:30,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:30,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:30,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:31,266 INFO L134 CoverageAnalysis]: Checked inductivity of 11214 backedges. 5044 proven. 26 refuted. 0 times theorem prover too weak. 6144 trivial. 0 not checked. [2023-02-17 09:27:31,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:31,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654171672] [2023-02-17 09:27:31,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654171672] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:31,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682450502] [2023-02-17 09:27:31,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 09:27:31,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:31,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:31,268 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 09:27:31,284 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 09:27:31,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 09:27:31,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:27:31,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-17 09:27:31,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:31,541 INFO L134 CoverageAnalysis]: Checked inductivity of 11214 backedges. 1728 proven. 36 refuted. 0 times theorem prover too weak. 9450 trivial. 0 not checked. [2023-02-17 09:27:31,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:32,210 INFO L134 CoverageAnalysis]: Checked inductivity of 11214 backedges. 1732 proven. 32 refuted. 0 times theorem prover too weak. 9450 trivial. 0 not checked. [2023-02-17 09:27:32,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682450502] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:32,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:32,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 17 [2023-02-17 09:27:32,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81147410] [2023-02-17 09:27:32,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:32,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-17 09:27:32,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:32,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-17 09:27:32,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-02-17 09:27:32,213 INFO L87 Difference]: Start difference. First operand 1297 states and 1487 transitions. Second operand has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-17 09:27:32,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:32,449 INFO L93 Difference]: Finished difference Result 2303 states and 2657 transitions. [2023-02-17 09:27:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-17 09:27:32,449 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 449 [2023-02-17 09:27:32,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:32,454 INFO L225 Difference]: With dead ends: 2303 [2023-02-17 09:27:32,454 INFO L226 Difference]: Without dead ends: 1147 [2023-02-17 09:27:32,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 923 SyntacticMatches, 19 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2023-02-17 09:27:32,460 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:32,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 202 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:27:32,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2023-02-17 09:27:32,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2023-02-17 09:27:32,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1093 states have (on average 1.121683440073193) internal successors, (1226), 1093 states have internal predecessors, (1226), 3 states have call successors, (3), 2 states have call predecessors, (3), 50 states have return successors, (51), 51 states have call predecessors, (51), 2 states have call successors, (51) [2023-02-17 09:27:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1280 transitions. [2023-02-17 09:27:32,510 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1280 transitions. Word has length 449 [2023-02-17 09:27:32,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:32,511 INFO L495 AbstractCegarLoop]: Abstraction has 1147 states and 1280 transitions. [2023-02-17 09:27:32,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-17 09:27:32,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1280 transitions. [2023-02-17 09:27:32,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2023-02-17 09:27:32,521 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:32,522 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:32,541 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 09:27:32,728 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 09:27:32,728 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:32,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:32,729 INFO L85 PathProgramCache]: Analyzing trace with hash 582393234, now seen corresponding path program 9 times [2023-02-17 09:27:32,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:32,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895164435] [2023-02-17 09:27:32,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:32,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:33,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:33,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:33,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:33,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:34,779 INFO L134 CoverageAnalysis]: Checked inductivity of 13470 backedges. 6988 proven. 53 refuted. 0 times theorem prover too weak. 6429 trivial. 0 not checked. [2023-02-17 09:27:34,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:34,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895164435] [2023-02-17 09:27:34,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895164435] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:34,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537515887] [2023-02-17 09:27:34,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 09:27:34,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:34,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:34,783 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 09:27:34,836 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 09:27:35,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2023-02-17 09:27:35,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:27:35,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-17 09:27:35,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:35,600 INFO L134 CoverageAnalysis]: Checked inductivity of 13470 backedges. 4697 proven. 478 refuted. 0 times theorem prover too weak. 8295 trivial. 0 not checked. [2023-02-17 09:27:35,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:36,116 INFO L134 CoverageAnalysis]: Checked inductivity of 13470 backedges. 4697 proven. 478 refuted. 0 times theorem prover too weak. 8295 trivial. 0 not checked. [2023-02-17 09:27:36,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537515887] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:36,117 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:36,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22, 22] total 59 [2023-02-17 09:27:36,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216124392] [2023-02-17 09:27:36,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:36,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-02-17 09:27:36,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:36,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-02-17 09:27:36,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=476, Invalid=2946, Unknown=0, NotChecked=0, Total=3422 [2023-02-17 09:27:36,121 INFO L87 Difference]: Start difference. First operand 1147 states and 1280 transitions. Second operand has 59 states, 59 states have (on average 2.0677966101694913) internal successors, (122), 56 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-17 09:27:38,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:38,564 INFO L93 Difference]: Finished difference Result 3649 states and 4284 transitions. [2023-02-17 09:27:38,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2023-02-17 09:27:38,564 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.0677966101694913) internal successors, (122), 56 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 469 [2023-02-17 09:27:38,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:38,571 INFO L225 Difference]: With dead ends: 3649 [2023-02-17 09:27:38,571 INFO L226 Difference]: Without dead ends: 2537 [2023-02-17 09:27:38,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1120 GetRequests, 943 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9681 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5995, Invalid=25867, Unknown=0, NotChecked=0, Total=31862 [2023-02-17 09:27:38,579 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 584 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:38,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 465 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 09:27:38,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2023-02-17 09:27:38,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 1012. [2023-02-17 09:27:38,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 968 states have (on average 1.103305785123967) internal successors, (1068), 968 states have internal predecessors, (1068), 3 states have call successors, (3), 2 states have call predecessors, (3), 40 states have return successors, (41), 41 states have call predecessors, (41), 2 states have call successors, (41) [2023-02-17 09:27:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1112 transitions. [2023-02-17 09:27:38,665 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1112 transitions. Word has length 469 [2023-02-17 09:27:38,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:38,665 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1112 transitions. [2023-02-17 09:27:38,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.0677966101694913) internal successors, (122), 56 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-17 09:27:38,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1112 transitions. [2023-02-17 09:27:38,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2023-02-17 09:27:38,673 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:38,673 INFO L195 NwaCegarLoop]: trace histogram [104, 104, 104, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:38,689 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 09:27:38,879 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 09:27:38,879 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:38,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:38,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1114671363, now seen corresponding path program 10 times [2023-02-17 09:27:38,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:38,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986913373] [2023-02-17 09:27:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:38,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:27:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:39,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:40,746 INFO L134 CoverageAnalysis]: Checked inductivity of 20487 backedges. 10930 proven. 89 refuted. 0 times theorem prover too weak. 9468 trivial. 0 not checked. [2023-02-17 09:27:40,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:40,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986913373] [2023-02-17 09:27:40,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986913373] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:40,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690491697] [2023-02-17 09:27:40,747 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 09:27:40,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:40,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:40,748 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 09:27:40,768 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 09:27:41,183 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 09:27:41,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:27:41,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-17 09:27:41,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:41,273 INFO L134 CoverageAnalysis]: Checked inductivity of 20487 backedges. 10147 proven. 89 refuted. 0 times theorem prover too weak. 10251 trivial. 0 not checked. [2023-02-17 09:27:41,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 20487 backedges. 10157 proven. 79 refuted. 0 times theorem prover too weak. 10251 trivial. 0 not checked. [2023-02-17 09:27:41,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690491697] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:41,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:41,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 28 [2023-02-17 09:27:41,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331443063] [2023-02-17 09:27:41,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:41,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-17 09:27:41,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:41,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-17 09:27:41,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=646, Unknown=0, NotChecked=0, Total=756 [2023-02-17 09:27:41,709 INFO L87 Difference]: Start difference. First operand 1012 states and 1112 transitions. Second operand has 28 states, 28 states have (on average 2.392857142857143) internal successors, (67), 27 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-17 09:27:42,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:42,014 INFO L93 Difference]: Finished difference Result 1673 states and 1856 transitions. [2023-02-17 09:27:42,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-17 09:27:42,015 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.392857142857143) internal successors, (67), 27 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 548 [2023-02-17 09:27:42,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:42,022 INFO L225 Difference]: With dead ends: 1673 [2023-02-17 09:27:42,022 INFO L226 Difference]: Without dead ends: 802 [2023-02-17 09:27:42,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 1108 SyntacticMatches, 27 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=440, Invalid=1630, Unknown=0, NotChecked=0, Total=2070 [2023-02-17 09:27:42,032 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 52 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:42,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 230 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:27:42,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2023-02-17 09:27:42,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 802. [2023-02-17 09:27:42,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 768 states have (on average 1.0846354166666667) internal successors, (833), 768 states have internal predecessors, (833), 3 states have call successors, (3), 2 states have call predecessors, (3), 30 states have return successors, (31), 31 states have call predecessors, (31), 2 states have call successors, (31) [2023-02-17 09:27:42,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 867 transitions. [2023-02-17 09:27:42,095 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 867 transitions. Word has length 548 [2023-02-17 09:27:42,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:42,096 INFO L495 AbstractCegarLoop]: Abstraction has 802 states and 867 transitions. [2023-02-17 09:27:42,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.392857142857143) internal successors, (67), 27 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-17 09:27:42,096 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 867 transitions. [2023-02-17 09:27:42,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-02-17 09:27:42,101 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:42,102 INFO L195 NwaCegarLoop]: trace histogram [114, 114, 114, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:42,112 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 09:27:42,309 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 09:27:42,310 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:42,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:42,310 INFO L85 PathProgramCache]: Analyzing trace with hash -399128115, now seen corresponding path program 11 times [2023-02-17 09:27:42,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:42,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220724984] [2023-02-17 09:27:42,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:42,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:43,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:44,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:45,315 INFO L134 CoverageAnalysis]: Checked inductivity of 23733 backedges. 13028 proven. 134 refuted. 0 times theorem prover too weak. 10571 trivial. 0 not checked. [2023-02-17 09:27:45,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:45,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220724984] [2023-02-17 09:27:45,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220724984] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:45,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562907443] [2023-02-17 09:27:45,315 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 09:27:45,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:45,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:45,317 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 09:27:45,348 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 09:27:45,883 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2023-02-17 09:27:45,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:27:45,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-17 09:27:45,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 23733 backedges. 7520 proven. 134 refuted. 0 times theorem prover too weak. 16079 trivial. 0 not checked. [2023-02-17 09:27:46,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 23733 backedges. 7533 proven. 121 refuted. 0 times theorem prover too weak. 16079 trivial. 0 not checked. [2023-02-17 09:27:46,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562907443] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:46,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:46,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 34 [2023-02-17 09:27:46,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914115593] [2023-02-17 09:27:46,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:46,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-02-17 09:27:46,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:46,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-02-17 09:27:46,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=966, Unknown=0, NotChecked=0, Total=1122 [2023-02-17 09:27:46,864 INFO L87 Difference]: Start difference. First operand 802 states and 867 transitions. Second operand has 34 states, 34 states have (on average 2.235294117647059) internal successors, (76), 33 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-17 09:27:47,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:47,241 INFO L93 Difference]: Finished difference Result 1223 states and 1339 transitions. [2023-02-17 09:27:47,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-17 09:27:47,242 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.235294117647059) internal successors, (76), 33 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 568 [2023-02-17 09:27:47,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:47,244 INFO L225 Difference]: With dead ends: 1223 [2023-02-17 09:27:47,244 INFO L226 Difference]: Without dead ends: 562 [2023-02-17 09:27:47,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1226 GetRequests, 1140 SyntacticMatches, 32 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 798 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=632, Invalid=2448, Unknown=0, NotChecked=0, Total=3080 [2023-02-17 09:27:47,246 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 66 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:47,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 328 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 09:27:47,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-02-17 09:27:47,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2023-02-17 09:27:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 538 states have (on average 1.0762081784386617) internal successors, (579), 538 states have internal predecessors, (579), 3 states have call successors, (3), 2 states have call predecessors, (3), 20 states have return successors, (21), 21 states have call predecessors, (21), 2 states have call successors, (21) [2023-02-17 09:27:47,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 603 transitions. [2023-02-17 09:27:47,271 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 603 transitions. Word has length 568 [2023-02-17 09:27:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:47,271 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 603 transitions. [2023-02-17 09:27:47,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.235294117647059) internal successors, (76), 33 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-17 09:27:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 603 transitions. [2023-02-17 09:27:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2023-02-17 09:27:47,275 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:47,275 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:47,290 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 09:27:47,482 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 09:27:47,482 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:47,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:47,483 INFO L85 PathProgramCache]: Analyzing trace with hash 880619485, now seen corresponding path program 12 times [2023-02-17 09:27:47,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:47,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875990034] [2023-02-17 09:27:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:47,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:48,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:27:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:48,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:49,720 INFO L134 CoverageAnalysis]: Checked inductivity of 27697 backedges. 14700 proven. 188 refuted. 0 times theorem prover too weak. 12809 trivial. 0 not checked. [2023-02-17 09:27:49,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:49,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875990034] [2023-02-17 09:27:49,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875990034] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:49,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105621903] [2023-02-17 09:27:49,721 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 09:27:49,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:49,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:49,722 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 09:27:49,749 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 09:27:50,508 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2023-02-17 09:27:50,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:27:50,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-17 09:27:50,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:27:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 27697 backedges. 12454 proven. 2784 refuted. 0 times theorem prover too weak. 12459 trivial. 0 not checked. [2023-02-17 09:27:50,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:27:51,593 INFO L134 CoverageAnalysis]: Checked inductivity of 27697 backedges. 12454 proven. 2784 refuted. 0 times theorem prover too weak. 12459 trivial. 0 not checked. [2023-02-17 09:27:51,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105621903] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:27:51,593 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:27:51,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 24, 24] total 75 [2023-02-17 09:27:51,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074292854] [2023-02-17 09:27:51,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:27:51,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-02-17 09:27:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:27:51,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-02-17 09:27:51,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=537, Invalid=5013, Unknown=0, NotChecked=0, Total=5550 [2023-02-17 09:27:51,598 INFO L87 Difference]: Start difference. First operand 562 states and 603 transitions. Second operand has 75 states, 75 states have (on average 2.1333333333333333) internal successors, (160), 68 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-17 09:27:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:27:55,725 INFO L93 Difference]: Finished difference Result 2376 states and 2722 transitions. [2023-02-17 09:27:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2023-02-17 09:27:55,725 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.1333333333333333) internal successors, (160), 68 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 608 [2023-02-17 09:27:55,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:27:55,730 INFO L225 Difference]: With dead ends: 2376 [2023-02-17 09:27:55,730 INFO L226 Difference]: Without dead ends: 1845 [2023-02-17 09:27:55,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1483 GetRequests, 1214 SyntacticMatches, 0 SemanticMatches, 269 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24172 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=8949, Invalid=64221, Unknown=0, NotChecked=0, Total=73170 [2023-02-17 09:27:55,739 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1321 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-17 09:27:55,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 557 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-17 09:27:55,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2023-02-17 09:27:55,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 622. [2023-02-17 09:27:55,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 598 states have (on average 1.080267558528428) internal successors, (646), 598 states have internal predecessors, (646), 3 states have call successors, (3), 2 states have call predecessors, (3), 20 states have return successors, (21), 21 states have call predecessors, (21), 2 states have call successors, (21) [2023-02-17 09:27:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 670 transitions. [2023-02-17 09:27:55,784 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 670 transitions. Word has length 608 [2023-02-17 09:27:55,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:27:55,784 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 670 transitions. [2023-02-17 09:27:55,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.1333333333333333) internal successors, (160), 68 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-17 09:27:55,784 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 670 transitions. [2023-02-17 09:27:55,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2023-02-17 09:27:55,788 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:27:55,788 INFO L195 NwaCegarLoop]: trace histogram [144, 144, 144, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:27:55,807 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 09:27:56,007 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 09:27:56,007 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:27:56,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:27:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash -516638227, now seen corresponding path program 13 times [2023-02-17 09:27:56,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:27:56,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161363965] [2023-02-17 09:27:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:27:56,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:27:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:56,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:27:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:57,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:57,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:58,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:58,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:27:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:27:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 35898 backedges. 20250 proven. 251 refuted. 0 times theorem prover too weak. 15397 trivial. 0 not checked. [2023-02-17 09:27:59,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:27:59,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161363965] [2023-02-17 09:27:59,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161363965] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:27:59,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653788361] [2023-02-17 09:27:59,186 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-17 09:27:59,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:27:59,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:27:59,187 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 09:27:59,189 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 09:28:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:00,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 39 conjunts are in the unsatisfiable core [2023-02-17 09:28:00,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:28:00,385 INFO L134 CoverageAnalysis]: Checked inductivity of 35898 backedges. 14725 proven. 776 refuted. 0 times theorem prover too weak. 20397 trivial. 0 not checked. [2023-02-17 09:28:00,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:28:02,466 INFO L134 CoverageAnalysis]: Checked inductivity of 35898 backedges. 14759 proven. 742 refuted. 0 times theorem prover too weak. 20397 trivial. 0 not checked. [2023-02-17 09:28:02,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653788361] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:28:02,466 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:28:02,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 39, 39] total 52 [2023-02-17 09:28:02,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148811035] [2023-02-17 09:28:02,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:28:02,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-02-17 09:28:02,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:28:02,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-02-17 09:28:02,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=2389, Unknown=0, NotChecked=0, Total=2652 [2023-02-17 09:28:02,478 INFO L87 Difference]: Start difference. First operand 622 states and 670 transitions. Second operand has 52 states, 52 states have (on average 2.4038461538461537) internal successors, (125), 45 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-17 09:28:04,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:28:04,368 INFO L93 Difference]: Finished difference Result 1097 states and 1198 transitions. [2023-02-17 09:28:04,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-02-17 09:28:04,368 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.4038461538461537) internal successors, (125), 45 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 658 [2023-02-17 09:28:04,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:28:04,374 INFO L225 Difference]: With dead ends: 1097 [2023-02-17 09:28:04,374 INFO L226 Difference]: Without dead ends: 646 [2023-02-17 09:28:04,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1475 GetRequests, 1288 SyntacticMatches, 54 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6191 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2750, Invalid=15340, Unknown=0, NotChecked=0, Total=18090 [2023-02-17 09:28:04,378 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 80 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 2443 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-17 09:28:04,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 516 Invalid, 2450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2443 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-17 09:28:04,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-02-17 09:28:04,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2023-02-17 09:28:04,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 622 states have (on average 1.0707395498392283) internal successors, (666), 622 states have internal predecessors, (666), 3 states have call successors, (3), 2 states have call predecessors, (3), 20 states have return successors, (21), 21 states have call predecessors, (21), 2 states have call successors, (21) [2023-02-17 09:28:04,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 690 transitions. [2023-02-17 09:28:04,451 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 690 transitions. Word has length 658 [2023-02-17 09:28:04,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:28:04,451 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 690 transitions. [2023-02-17 09:28:04,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.4038461538461537) internal successors, (125), 45 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-17 09:28:04,452 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 690 transitions. [2023-02-17 09:28:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2023-02-17 09:28:04,456 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:28:04,457 INFO L195 NwaCegarLoop]: trace histogram [152, 152, 152, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:28:04,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-17 09:28:04,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:28:04,667 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:28:04,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:28:04,668 INFO L85 PathProgramCache]: Analyzing trace with hash 988892365, now seen corresponding path program 14 times [2023-02-17 09:28:04,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:28:04,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188665380] [2023-02-17 09:28:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:28:04,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:28:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:05,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:28:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:06,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:06,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:07,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:07,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:08,334 INFO L134 CoverageAnalysis]: Checked inductivity of 39807 backedges. 22489 proven. 323 refuted. 0 times theorem prover too weak. 16995 trivial. 0 not checked. [2023-02-17 09:28:08,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:28:08,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188665380] [2023-02-17 09:28:08,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188665380] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:28:08,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326572552] [2023-02-17 09:28:08,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 09:28:08,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:28:08,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:28:08,336 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:28:08,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-17 09:28:09,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 09:28:09,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:28:09,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-17 09:28:09,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:28:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 39807 backedges. 18507 proven. 1107 refuted. 0 times theorem prover too weak. 20193 trivial. 0 not checked. [2023-02-17 09:28:10,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:28:12,313 INFO L134 CoverageAnalysis]: Checked inductivity of 39807 backedges. 18550 proven. 1064 refuted. 0 times theorem prover too weak. 20193 trivial. 0 not checked. [2023-02-17 09:28:12,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326572552] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:28:12,314 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:28:12,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 44, 44] total 59 [2023-02-17 09:28:12,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879155027] [2023-02-17 09:28:12,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:28:12,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-02-17 09:28:12,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:28:12,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-02-17 09:28:12,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=3094, Unknown=0, NotChecked=0, Total=3422 [2023-02-17 09:28:12,316 INFO L87 Difference]: Start difference. First operand 646 states and 690 transitions. Second operand has 59 states, 59 states have (on average 2.3559322033898304) internal successors, (139), 51 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-17 09:28:14,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:28:14,551 INFO L93 Difference]: Finished difference Result 1172 states and 1266 transitions. [2023-02-17 09:28:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2023-02-17 09:28:14,553 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.3559322033898304) internal successors, (139), 51 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 692 [2023-02-17 09:28:14,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:28:14,555 INFO L225 Difference]: With dead ends: 1172 [2023-02-17 09:28:14,555 INFO L226 Difference]: Without dead ends: 700 [2023-02-17 09:28:14,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1567 GetRequests, 1346 SyntacticMatches, 61 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9029 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3881, Invalid=22201, Unknown=0, NotChecked=0, Total=26082 [2023-02-17 09:28:14,560 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 92 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-17 09:28:14,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 516 Invalid, 2602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2593 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-17 09:28:14,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-02-17 09:28:14,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 678. [2023-02-17 09:28:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 653 states have (on average 1.0627871362940275) internal successors, (694), 653 states have internal predecessors, (694), 3 states have call successors, (3), 2 states have call predecessors, (3), 21 states have return successors, (22), 22 states have call predecessors, (22), 2 states have call successors, (22) [2023-02-17 09:28:14,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 719 transitions. [2023-02-17 09:28:14,657 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 719 transitions. Word has length 692 [2023-02-17 09:28:14,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:28:14,667 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 719 transitions. [2023-02-17 09:28:14,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.3559322033898304) internal successors, (139), 51 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-17 09:28:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 719 transitions. [2023-02-17 09:28:14,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2023-02-17 09:28:14,672 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:28:14,672 INFO L195 NwaCegarLoop]: trace histogram [159, 159, 159, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:28:14,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-17 09:28:14,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-02-17 09:28:14,881 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:28:14,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:28:14,882 INFO L85 PathProgramCache]: Analyzing trace with hash -875973678, now seen corresponding path program 15 times [2023-02-17 09:28:14,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:28:14,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201585876] [2023-02-17 09:28:14,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:28:14,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:28:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:15,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:28:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:16,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:17,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:17,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 43202 backedges. 24563 proven. 404 refuted. 0 times theorem prover too weak. 18235 trivial. 0 not checked. [2023-02-17 09:28:18,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:28:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201585876] [2023-02-17 09:28:18,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201585876] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:28:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54568858] [2023-02-17 09:28:18,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 09:28:18,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:28:18,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:28:18,774 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:28:18,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-17 09:28:20,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-17 09:28:20,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:28:20,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 33 conjunts are in the unsatisfiable core [2023-02-17 09:28:20,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:28:21,057 INFO L134 CoverageAnalysis]: Checked inductivity of 43202 backedges. 20532 proven. 6087 refuted. 0 times theorem prover too weak. 16583 trivial. 0 not checked. [2023-02-17 09:28:21,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:28:21,997 INFO L134 CoverageAnalysis]: Checked inductivity of 43202 backedges. 20532 proven. 6087 refuted. 0 times theorem prover too weak. 16583 trivial. 0 not checked. [2023-02-17 09:28:21,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54568858] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:28:21,997 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:28:21,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 33, 33] total 105 [2023-02-17 09:28:21,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571826075] [2023-02-17 09:28:21,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:28:22,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2023-02-17 09:28:22,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:28:22,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2023-02-17 09:28:22,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1010, Invalid=9910, Unknown=0, NotChecked=0, Total=10920 [2023-02-17 09:28:22,016 INFO L87 Difference]: Start difference. First operand 678 states and 719 transitions. Second operand has 105 states, 105 states have (on average 2.019047619047619) internal successors, (212), 96 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-17 09:28:30,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:28:30,124 INFO L93 Difference]: Finished difference Result 3851 states and 4336 transitions. [2023-02-17 09:28:30,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 344 states. [2023-02-17 09:28:30,124 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 2.019047619047619) internal successors, (212), 96 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 713 [2023-02-17 09:28:30,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:28:30,131 INFO L225 Difference]: With dead ends: 3851 [2023-02-17 09:28:30,131 INFO L226 Difference]: Without dead ends: 3112 [2023-02-17 09:28:30,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1849 GetRequests, 1407 SyntacticMatches, 0 SemanticMatches, 442 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69937 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=21284, Invalid=175408, Unknown=0, NotChecked=0, Total=196692 [2023-02-17 09:28:30,146 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 2210 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 2758 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 2835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-17 09:28:30,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 779 Invalid, 2835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2758 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-17 09:28:30,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3112 states. [2023-02-17 09:28:30,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3112 to 821. [2023-02-17 09:28:30,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 794 states have (on average 1.0806045340050379) internal successors, (858), 794 states have internal predecessors, (858), 3 states have call successors, (3), 2 states have call predecessors, (3), 23 states have return successors, (24), 24 states have call predecessors, (24), 2 states have call successors, (24) [2023-02-17 09:28:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 885 transitions. [2023-02-17 09:28:30,254 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 885 transitions. Word has length 713 [2023-02-17 09:28:30,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:28:30,255 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 885 transitions. [2023-02-17 09:28:30,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 2.019047619047619) internal successors, (212), 96 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-17 09:28:30,255 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 885 transitions. [2023-02-17 09:28:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2023-02-17 09:28:30,261 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:28:30,261 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 190, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:28:30,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-17 09:28:30,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:28:30,473 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:28:30,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:28:30,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1240873645, now seen corresponding path program 16 times [2023-02-17 09:28:30,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:28:30,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896531988] [2023-02-17 09:28:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:28:30,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:28:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:31,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:28:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:32,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:34,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:35,632 INFO L134 CoverageAnalysis]: Checked inductivity of 59795 backedges. 34564 proven. 494 refuted. 0 times theorem prover too weak. 24737 trivial. 0 not checked. [2023-02-17 09:28:35,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:28:35,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896531988] [2023-02-17 09:28:35,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896531988] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:28:35,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105241416] [2023-02-17 09:28:35,633 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 09:28:35,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:28:35,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:28:35,634 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:28:35,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-17 09:28:37,490 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 09:28:37,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:28:37,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 1804 conjuncts, 81 conjunts are in the unsatisfiable core [2023-02-17 09:28:37,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:28:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 59795 backedges. 32986 proven. 1709 refuted. 0 times theorem prover too weak. 25100 trivial. 0 not checked. [2023-02-17 09:28:38,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:28:41,554 INFO L134 CoverageAnalysis]: Checked inductivity of 59795 backedges. 33041 proven. 1654 refuted. 0 times theorem prover too weak. 25100 trivial. 0 not checked. [2023-02-17 09:28:41,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105241416] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:28:41,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:28:41,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 81, 81] total 121 [2023-02-17 09:28:41,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390176663] [2023-02-17 09:28:41,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:28:41,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2023-02-17 09:28:41,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:28:41,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2023-02-17 09:28:41,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1649, Invalid=12871, Unknown=0, NotChecked=0, Total=14520 [2023-02-17 09:28:41,559 INFO L87 Difference]: Start difference. First operand 821 states and 885 transitions. Second operand has 121 states, 121 states have (on average 1.7355371900826446) internal successors, (210), 119 states have internal predecessors, (210), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-17 09:28:44,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:28:44,286 INFO L93 Difference]: Finished difference Result 2558 states and 2843 transitions. [2023-02-17 09:28:44,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2023-02-17 09:28:44,286 INFO L78 Accepts]: Start accepts. Automaton has has 121 states, 121 states have (on average 1.7355371900826446) internal successors, (210), 119 states have internal predecessors, (210), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 796 [2023-02-17 09:28:44,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:28:44,291 INFO L225 Difference]: With dead ends: 2558 [2023-02-17 09:28:44,291 INFO L226 Difference]: Without dead ends: 1963 [2023-02-17 09:28:44,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1798 GetRequests, 1490 SyntacticMatches, 72 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19975 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=9061, Invalid=47345, Unknown=0, NotChecked=0, Total=56406 [2023-02-17 09:28:44,297 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 288 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-17 09:28:44,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 754 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-17 09:28:44,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2023-02-17 09:28:44,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1723. [2023-02-17 09:28:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1685 states have (on average 1.058160237388724) internal successors, (1783), 1685 states have internal predecessors, (1783), 3 states have call successors, (3), 2 states have call predecessors, (3), 34 states have return successors, (35), 35 states have call predecessors, (35), 2 states have call successors, (35) [2023-02-17 09:28:44,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 1821 transitions. [2023-02-17 09:28:44,545 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 1821 transitions. Word has length 796 [2023-02-17 09:28:44,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:28:44,546 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 1821 transitions. [2023-02-17 09:28:44,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 121 states, 121 states have (on average 1.7355371900826446) internal successors, (210), 119 states have internal predecessors, (210), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-17 09:28:44,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 1821 transitions. [2023-02-17 09:28:44,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2023-02-17 09:28:44,553 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:28:44,553 INFO L195 NwaCegarLoop]: trace histogram [198, 198, 198, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:28:44,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-02-17 09:28:44,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:28:44,769 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:28:44,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:28:44,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1723462029, now seen corresponding path program 17 times [2023-02-17 09:28:44,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:28:44,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502266475] [2023-02-17 09:28:44,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:28:44,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:28:44,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:46,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:28:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:47,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:48,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:48,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:49,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:50,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:51,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 64808 backedges. 37612 proven. 593 refuted. 0 times theorem prover too weak. 26603 trivial. 0 not checked. [2023-02-17 09:28:51,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:28:51,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502266475] [2023-02-17 09:28:51,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502266475] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:28:51,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891822076] [2023-02-17 09:28:51,006 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 09:28:51,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:28:51,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:28:51,022 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:28:51,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-17 09:28:52,800 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2023-02-17 09:28:52,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:28:52,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 50 conjunts are in the unsatisfiable core [2023-02-17 09:28:52,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:28:53,164 INFO L134 CoverageAnalysis]: Checked inductivity of 64808 backedges. 35686 proven. 1260 refuted. 0 times theorem prover too weak. 27862 trivial. 0 not checked. [2023-02-17 09:28:53,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:28:55,088 INFO L134 CoverageAnalysis]: Checked inductivity of 64808 backedges. 36032 proven. 914 refuted. 0 times theorem prover too weak. 27862 trivial. 0 not checked. [2023-02-17 09:28:55,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891822076] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:28:55,089 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:28:55,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 50, 50] total 71 [2023-02-17 09:28:55,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275376199] [2023-02-17 09:28:55,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:28:55,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-02-17 09:28:55,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:28:55,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-02-17 09:28:55,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=601, Invalid=4369, Unknown=0, NotChecked=0, Total=4970 [2023-02-17 09:28:55,092 INFO L87 Difference]: Start difference. First operand 1723 states and 1821 transitions. Second operand has 71 states, 71 states have (on average 1.9154929577464788) internal successors, (136), 69 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-17 09:28:56,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:28:56,759 INFO L93 Difference]: Finished difference Result 3029 states and 3200 transitions. [2023-02-17 09:28:56,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-02-17 09:28:56,759 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 1.9154929577464788) internal successors, (136), 69 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 830 [2023-02-17 09:28:56,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:28:56,763 INFO L225 Difference]: With dead ends: 3029 [2023-02-17 09:28:56,763 INFO L226 Difference]: Without dead ends: 1879 [2023-02-17 09:28:56,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1820 GetRequests, 1620 SyntacticMatches, 64 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5506 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3578, Invalid=15328, Unknown=0, NotChecked=0, Total=18906 [2023-02-17 09:28:56,769 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 143 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-17 09:28:56,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 553 Invalid, 1849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-17 09:28:56,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2023-02-17 09:28:57,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1879. [2023-02-17 09:28:57,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 1837 states have (on average 1.0511703864997277) internal successors, (1931), 1837 states have internal predecessors, (1931), 3 states have call successors, (3), 2 states have call predecessors, (3), 38 states have return successors, (39), 39 states have call predecessors, (39), 2 states have call successors, (39) [2023-02-17 09:28:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 1973 transitions. [2023-02-17 09:28:57,068 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 1973 transitions. Word has length 830 [2023-02-17 09:28:57,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:28:57,068 INFO L495 AbstractCegarLoop]: Abstraction has 1879 states and 1973 transitions. [2023-02-17 09:28:57,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 1.9154929577464788) internal successors, (136), 69 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-17 09:28:57,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 1973 transitions. [2023-02-17 09:28:57,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2023-02-17 09:28:57,078 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:28:57,078 INFO L195 NwaCegarLoop]: trace histogram [201, 201, 201, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-17 09:28:57,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-02-17 09:28:57,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:28:57,291 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:28:57,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:28:57,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1152397758, now seen corresponding path program 18 times [2023-02-17 09:28:57,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:28:57,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636017791] [2023-02-17 09:28:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:28:57,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:28:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:28:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:28:59,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:28:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:00,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:01,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:02,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:02,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 66450 backedges. 39111 proven. 701 refuted. 0 times theorem prover too weak. 26638 trivial. 0 not checked. [2023-02-17 09:29:03,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:29:03,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636017791] [2023-02-17 09:29:03,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636017791] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:29:03,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869557799] [2023-02-17 09:29:03,380 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 09:29:03,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:29:03,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:29:03,381 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:29:03,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-17 09:29:05,449 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2023-02-17 09:29:05,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:29:05,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 50 conjunts are in the unsatisfiable core [2023-02-17 09:29:05,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:29:06,886 INFO L134 CoverageAnalysis]: Checked inductivity of 66450 backedges. 23667 proven. 34375 refuted. 0 times theorem prover too weak. 8408 trivial. 0 not checked. [2023-02-17 09:29:06,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:29:09,682 INFO L134 CoverageAnalysis]: Checked inductivity of 66450 backedges. 23667 proven. 34375 refuted. 0 times theorem prover too weak. 8408 trivial. 0 not checked. [2023-02-17 09:29:09,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869557799] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:29:09,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:29:09,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 50, 50] total 151 [2023-02-17 09:29:09,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079672305] [2023-02-17 09:29:09,684 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:29:09,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 151 states [2023-02-17 09:29:09,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:29:09,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2023-02-17 09:29:09,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1875, Invalid=20775, Unknown=0, NotChecked=0, Total=22650 [2023-02-17 09:29:09,696 INFO L87 Difference]: Start difference. First operand 1879 states and 1973 transitions. Second operand has 151 states, 151 states have (on average 2.0927152317880795) internal successors, (316), 132 states have internal predecessors, (316), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21) [2023-02-17 09:29:34,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:29:34,736 INFO L93 Difference]: Finished difference Result 8155 states and 8591 transitions. [2023-02-17 09:29:34,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 731 states. [2023-02-17 09:29:34,737 INFO L78 Accepts]: Start accepts. Automaton has has 151 states, 151 states have (on average 2.0927152317880795) internal successors, (316), 132 states have internal predecessors, (316), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21) Word has length 829 [2023-02-17 09:29:34,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:29:34,749 INFO L225 Difference]: With dead ends: 8155 [2023-02-17 09:29:34,749 INFO L226 Difference]: Without dead ends: 6123 [2023-02-17 09:29:34,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2480 GetRequests, 1606 SyntacticMatches, 0 SemanticMatches, 874 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303266 ImplicationChecksByTransitivity, 25.7s TimeCoverageRelationStatistics Valid=59624, Invalid=706876, Unknown=0, NotChecked=0, Total=766500 [2023-02-17 09:29:34,798 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 5129 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 3319 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5129 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 3319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:29:34,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5129 Valid, 840 Invalid, 3460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 3319 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-02-17 09:29:34,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6123 states. [2023-02-17 09:29:35,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6123 to 2050. [2023-02-17 09:29:35,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2008 states have (on average 1.0453187250996017) internal successors, (2099), 2008 states have internal predecessors, (2099), 3 states have call successors, (3), 2 states have call predecessors, (3), 38 states have return successors, (39), 39 states have call predecessors, (39), 2 states have call successors, (39) [2023-02-17 09:29:35,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2141 transitions. [2023-02-17 09:29:35,685 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2141 transitions. Word has length 829 [2023-02-17 09:29:35,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:29:35,686 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 2141 transitions. [2023-02-17 09:29:35,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 151 states, 151 states have (on average 2.0927152317880795) internal successors, (316), 132 states have internal predecessors, (316), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21) [2023-02-17 09:29:35,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2141 transitions. [2023-02-17 09:29:35,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1328 [2023-02-17 09:29:35,700 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:29:35,700 INFO L195 NwaCegarLoop]: trace histogram [345, 345, 345, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 1, 1, 1, 1, 1, 1] [2023-02-17 09:29:35,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-17 09:29:35,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-02-17 09:29:35,913 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:29:35,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:29:35,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1936591374, now seen corresponding path program 19 times [2023-02-17 09:29:35,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:29:35,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56408329] [2023-02-17 09:29:35,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:29:35,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:29:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:38,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:29:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:41,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:43,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:45,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:47,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:48,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:50,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:51,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:52,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:53,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:54,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:55,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:55,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:56,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:56,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:56,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:29:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:29:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 190617 backedges. 30580 proven. 1316 refuted. 0 times theorem prover too weak. 158721 trivial. 0 not checked. [2023-02-17 09:29:57,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:29:57,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56408329] [2023-02-17 09:29:57,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56408329] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:29:57,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451889156] [2023-02-17 09:29:57,929 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-17 09:29:57,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:29:57,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:29:57,941 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:29:57,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-17 09:30:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:00,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 39 conjunts are in the unsatisfiable core [2023-02-17 09:30:00,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:30:00,575 INFO L134 CoverageAnalysis]: Checked inductivity of 190617 backedges. 30601 proven. 1295 refuted. 0 times theorem prover too weak. 158721 trivial. 0 not checked. [2023-02-17 09:30:00,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:30:03,828 INFO L134 CoverageAnalysis]: Checked inductivity of 190617 backedges. 30601 proven. 1295 refuted. 0 times theorem prover too weak. 158721 trivial. 0 not checked. [2023-02-17 09:30:03,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451889156] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:30:03,829 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:30:03,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39, 39] total 43 [2023-02-17 09:30:03,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843130604] [2023-02-17 09:30:03,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:30:03,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-02-17 09:30:03,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:30:03,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-02-17 09:30:03,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=1587, Unknown=0, NotChecked=0, Total=1806 [2023-02-17 09:30:03,832 INFO L87 Difference]: Start difference. First operand 2050 states and 2141 transitions. Second operand has 43 states, 43 states have (on average 2.372093023255814) internal successors, (102), 35 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-17 09:30:04,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:30:04,906 INFO L93 Difference]: Finished difference Result 3929 states and 4109 transitions. [2023-02-17 09:30:04,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-02-17 09:30:04,906 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.372093023255814) internal successors, (102), 35 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 1327 [2023-02-17 09:30:04,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:30:04,911 INFO L225 Difference]: With dead ends: 3929 [2023-02-17 09:30:04,911 INFO L226 Difference]: Without dead ends: 2050 [2023-02-17 09:30:04,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2833 GetRequests, 2678 SyntacticMatches, 50 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5473 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1923, Invalid=9419, Unknown=0, NotChecked=0, Total=11342 [2023-02-17 09:30:04,916 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 269 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:30:04,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 203 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:30:04,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2023-02-17 09:30:05,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2023-02-17 09:30:05,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2008 states have (on average 1.044820717131474) internal successors, (2098), 2008 states have internal predecessors, (2098), 3 states have call successors, (3), 2 states have call predecessors, (3), 38 states have return successors, (39), 39 states have call predecessors, (39), 2 states have call successors, (39) [2023-02-17 09:30:05,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2140 transitions. [2023-02-17 09:30:05,779 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2140 transitions. Word has length 1327 [2023-02-17 09:30:05,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:30:05,780 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 2140 transitions. [2023-02-17 09:30:05,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.372093023255814) internal successors, (102), 35 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-17 09:30:05,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2140 transitions. [2023-02-17 09:30:05,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1360 [2023-02-17 09:30:05,793 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:30:05,794 INFO L195 NwaCegarLoop]: trace histogram [352, 352, 352, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 26, 1, 1, 1, 1, 1, 1] [2023-02-17 09:30:05,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-02-17 09:30:06,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-02-17 09:30:06,013 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:30:06,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:30:06,014 INFO L85 PathProgramCache]: Analyzing trace with hash 676401222, now seen corresponding path program 20 times [2023-02-17 09:30:06,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:30:06,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578032701] [2023-02-17 09:30:06,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:30:06,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:30:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:08,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 09:30:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:11,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:14,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:16,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:18,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:20,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:21,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:24,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:25,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:27,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:27,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:28,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:28,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:29,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:29,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:29,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:30,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:30,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:30,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:30,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:30,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:30,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:30,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 198747 backedges. 38664 proven. 2126 refuted. 0 times theorem prover too weak. 157957 trivial. 0 not checked. [2023-02-17 09:30:30,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:30:30,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578032701] [2023-02-17 09:30:30,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578032701] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:30:30,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755583477] [2023-02-17 09:30:30,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 09:30:30,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:30:30,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:30:30,896 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:30:30,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-02-17 09:30:34,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 09:30:34,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:30:34,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 3099 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-17 09:30:34,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:30:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 198747 backedges. 38688 proven. 2102 refuted. 0 times theorem prover too weak. 157957 trivial. 0 not checked. [2023-02-17 09:30:34,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:30:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 198747 backedges. 38688 proven. 2102 refuted. 0 times theorem prover too weak. 157957 trivial. 0 not checked. [2023-02-17 09:30:38,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755583477] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:30:38,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:30:38,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 44, 44] total 48 [2023-02-17 09:30:38,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837931057] [2023-02-17 09:30:38,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:30:38,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-17 09:30:38,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:30:38,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-17 09:30:38,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=1988, Unknown=0, NotChecked=0, Total=2256 [2023-02-17 09:30:38,479 INFO L87 Difference]: Start difference. First operand 2050 states and 2140 transitions. Second operand has 48 states, 48 states have (on average 2.3541666666666665) internal successors, (113), 39 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-17 09:30:39,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:30:39,786 INFO L93 Difference]: Finished difference Result 3896 states and 4074 transitions. [2023-02-17 09:30:39,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2023-02-17 09:30:39,786 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.3541666666666665) internal successors, (113), 39 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 1359 [2023-02-17 09:30:39,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:30:39,791 INFO L225 Difference]: With dead ends: 3896 [2023-02-17 09:30:39,791 INFO L226 Difference]: Without dead ends: 2050 [2023-02-17 09:30:39,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2922 GetRequests, 2738 SyntacticMatches, 57 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8136 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2834, Invalid=13678, Unknown=0, NotChecked=0, Total=16512 [2023-02-17 09:30:39,797 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 244 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 09:30:39,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 223 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 09:30:39,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2023-02-17 09:30:40,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2023-02-17 09:30:40,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2008 states have (on average 1.0443227091633467) internal successors, (2097), 2008 states have internal predecessors, (2097), 3 states have call successors, (3), 2 states have call predecessors, (3), 38 states have return successors, (39), 39 states have call predecessors, (39), 2 states have call successors, (39) [2023-02-17 09:30:40,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2139 transitions. [2023-02-17 09:30:40,565 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2139 transitions. Word has length 1359 [2023-02-17 09:30:40,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:30:40,565 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 2139 transitions. [2023-02-17 09:30:40,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.3541666666666665) internal successors, (113), 39 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-17 09:30:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2139 transitions. [2023-02-17 09:30:40,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1405 [2023-02-17 09:30:40,578 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:30:40,579 INFO L195 NwaCegarLoop]: trace histogram [360, 360, 360, 31, 30, 30, 30, 30, 28, 28, 28, 28, 28, 27, 1, 1, 1, 1, 1, 1] [2023-02-17 09:30:40,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-02-17 09:30:40,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-02-17 09:30:40,785 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:30:40,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:30:40,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1645557619, now seen corresponding path program 21 times [2023-02-17 09:30:40,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:30:40,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800933810] [2023-02-17 09:30:40,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:30:40,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:30:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:43,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:30:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:51,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:54,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:56,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:57,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:30:59,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:30:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:00,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:01,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:03,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:05,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:06,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:06,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:07,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:07,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:07,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:07,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:07,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:07,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:08,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:08,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:08,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 208443 backedges. 47664 proven. 3267 refuted. 0 times theorem prover too weak. 157512 trivial. 0 not checked. [2023-02-17 09:31:08,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:31:08,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800933810] [2023-02-17 09:31:08,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800933810] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 09:31:08,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751106334] [2023-02-17 09:31:08,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 09:31:08,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:31:08,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:31:08,154 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 09:31:08,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-02-17 09:31:12,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2023-02-17 09:31:12,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 09:31:12,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 45 conjunts are in the unsatisfiable core [2023-02-17 09:31:12,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 09:31:13,812 INFO L134 CoverageAnalysis]: Checked inductivity of 208443 backedges. 22344 proven. 651 refuted. 0 times theorem prover too weak. 185448 trivial. 0 not checked. [2023-02-17 09:31:13,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 09:31:15,230 INFO L134 CoverageAnalysis]: Checked inductivity of 208443 backedges. 22344 proven. 651 refuted. 0 times theorem prover too weak. 185448 trivial. 0 not checked. [2023-02-17 09:31:15,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751106334] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 09:31:15,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 09:31:15,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 45, 45] total 138 [2023-02-17 09:31:15,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898364045] [2023-02-17 09:31:15,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 09:31:15,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2023-02-17 09:31:15,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:31:15,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2023-02-17 09:31:15,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2779, Invalid=16127, Unknown=0, NotChecked=0, Total=18906 [2023-02-17 09:31:15,236 INFO L87 Difference]: Start difference. First operand 2050 states and 2139 transitions. Second operand has 138 states, 138 states have (on average 1.8768115942028984) internal successors, (259), 128 states have internal predecessors, (259), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2023-02-17 09:31:19,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:31:19,567 INFO L93 Difference]: Finished difference Result 5500 states and 6113 transitions. [2023-02-17 09:31:19,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2023-02-17 09:31:19,567 INFO L78 Accepts]: Start accepts. Automaton has has 138 states, 138 states have (on average 1.8768115942028984) internal successors, (259), 128 states have internal predecessors, (259), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) Word has length 1404 [2023-02-17 09:31:19,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:31:19,580 INFO L225 Difference]: With dead ends: 5500 [2023-02-17 09:31:19,580 INFO L226 Difference]: Without dead ends: 3686 [2023-02-17 09:31:19,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3094 GetRequests, 2794 SyntacticMatches, 0 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29852 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=21648, Invalid=69254, Unknown=0, NotChecked=0, Total=90902 [2023-02-17 09:31:19,593 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1139 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-17 09:31:19,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 355 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-17 09:31:19,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2023-02-17 09:31:20,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 2182. [2023-02-17 09:31:20,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2140 states have (on average 1.0514018691588785) internal successors, (2250), 2140 states have internal predecessors, (2250), 3 states have call successors, (3), 2 states have call predecessors, (3), 38 states have return successors, (39), 39 states have call predecessors, (39), 2 states have call successors, (39) [2023-02-17 09:31:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2292 transitions. [2023-02-17 09:31:20,396 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2292 transitions. Word has length 1404 [2023-02-17 09:31:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:31:20,396 INFO L495 AbstractCegarLoop]: Abstraction has 2182 states and 2292 transitions. [2023-02-17 09:31:20,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 1.8768115942028984) internal successors, (259), 128 states have internal predecessors, (259), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2023-02-17 09:31:20,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2292 transitions. [2023-02-17 09:31:20,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1509 [2023-02-17 09:31:20,464 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:31:20,465 INFO L195 NwaCegarLoop]: trace histogram [391, 391, 391, 32, 31, 31, 31, 31, 29, 29, 29, 29, 29, 28, 1, 1, 1, 1, 1, 1] [2023-02-17 09:31:20,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-02-17 09:31:20,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 09:31:20,665 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-17 09:31:20,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:31:20,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1428129289, now seen corresponding path program 22 times [2023-02-17 09:31:20,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:31:20,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911112663] [2023-02-17 09:31:20,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:31:20,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:31:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:24,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 09:31:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:27,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:30,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:31:33,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-17 09:31:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat