./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/recHanoi03-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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/recursive/recHanoi03-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6256a35b65d93a8e45ad38c9510c3be689a890aeee58265a5723be13a7385a72 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:44:00,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:44:00,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:44:00,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:44:00,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:44:00,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:44:00,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:44:00,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:44:00,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:44:00,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:44:00,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:44:00,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:44:00,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:44:00,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:44:00,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:44:00,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:44:00,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:44:00,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:44:00,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:44:00,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:44:00,924 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:44:00,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:44:00,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:44:00,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:44:00,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:44:00,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:44:00,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:44:00,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:44:00,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:44:00,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:44:00,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:44:00,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:44:00,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:44:00,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:44:00,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:44:00,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:44:00,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:44:00,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:44:00,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:44:00,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:44:00,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:44:00,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:44:00,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 00:44:00,981 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:44:00,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:44:00,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:44:00,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:44:00,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:44:00,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:44:00,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:44:00,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:44:00,984 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:44:00,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:44:00,985 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 00:44:00,985 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:44:00,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:44:00,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 00:44:00,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:44:00,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:44:00,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:44:00,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:44:00,986 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:44:00,986 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 00:44:00,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:44:00,987 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:44:00,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:44:00,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:44:00,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:44:00,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:44:00,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:44:00,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:44:00,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:44:00,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:44:00,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:44:00,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:44:00,989 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:44:00,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6256a35b65d93a8e45ad38c9510c3be689a890aeee58265a5723be13a7385a72 [2022-07-22 00:44:01,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:44:01,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:44:01,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:44:01,270 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:44:01,270 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:44:01,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/recHanoi03-2.c [2022-07-22 00:44:01,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a20758d/03090bed126a4efc8f29fdf7f4e354f0/FLAGbdde611bc [2022-07-22 00:44:01,685 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:44:01,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi03-2.c [2022-07-22 00:44:01,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a20758d/03090bed126a4efc8f29fdf7f4e354f0/FLAGbdde611bc [2022-07-22 00:44:01,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9a20758d/03090bed126a4efc8f29fdf7f4e354f0 [2022-07-22 00:44:01,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:44:01,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:44:01,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:44:01,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:44:01,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:44:01,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1465d48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01, skipping insertion in model container [2022-07-22 00:44:01,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:44:01,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:44:01,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi03-2.c[769,782] [2022-07-22 00:44:01,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:44:01,871 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:44:01,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi03-2.c[769,782] [2022-07-22 00:44:01,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:44:01,929 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:44:01,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01 WrapperNode [2022-07-22 00:44:01,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:44:01,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:44:01,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:44:01,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:44:01,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,952 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-07-22 00:44:01,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:44:01,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:44:01,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:44:01,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:44:01,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,971 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:44:01,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:44:01,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:44:01,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:44:01,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (1/1) ... [2022-07-22 00:44:01,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:44:01,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:02,018 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) [2022-07-22 00:44:02,038 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 [2022-07-22 00:44:02,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 00:44:02,049 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2022-07-22 00:44:02,049 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2022-07-22 00:44:02,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:44:02,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:44:02,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 00:44:02,098 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:44:02,099 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:44:02,224 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:44:02,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:44:02,228 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 00:44:02,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:44:02 BoogieIcfgContainer [2022-07-22 00:44:02,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:44:02,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:44:02,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:44:02,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:44:02,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:44:01" (1/3) ... [2022-07-22 00:44:02,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d38baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:44:02, skipping insertion in model container [2022-07-22 00:44:02,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:01" (2/3) ... [2022-07-22 00:44:02,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d38baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:44:02, skipping insertion in model container [2022-07-22 00:44:02,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:44:02" (3/3) ... [2022-07-22 00:44:02,235 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2022-07-22 00:44:02,244 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:44:02,245 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-22 00:44:02,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:44:02,278 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@65c7c379, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@38533ad0 [2022-07-22 00:44:02,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-22 00:44:02,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 24 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) [2022-07-22 00:44:02,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-22 00:44:02,285 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:02,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:02,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:02,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:02,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1325924785, now seen corresponding path program 1 times [2022-07-22 00:44:02,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:02,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277399381] [2022-07-22 00:44:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:02,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:02,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:02,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277399381] [2022-07-22 00:44:02,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277399381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:44:02,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:44:02,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:44:02,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364086243] [2022-07-22 00:44:02,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:44:02,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:44:02,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:02,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:44:02,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:44:02,503 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 24 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) [2022-07-22 00:44:02,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:02,574 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-07-22 00:44:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:44:02,577 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 [2022-07-22 00:44:02,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:02,582 INFO L225 Difference]: With dead ends: 34 [2022-07-22 00:44:02,582 INFO L226 Difference]: Without dead ends: 21 [2022-07-22 00:44:02,585 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 [2022-07-22 00:44:02,589 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 35 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:02,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 52 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:44:02,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-07-22 00:44:02,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-07-22 00:44:02,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 states have internal predecessors, (19), 2 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) [2022-07-22 00:44:02,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-07-22 00:44:02,617 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2022-07-22 00:44:02,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:02,618 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-07-22 00:44:02,618 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) [2022-07-22 00:44:02,618 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-07-22 00:44:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-22 00:44:02,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:02,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:02,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:44:02,620 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:02,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:02,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1846004663, now seen corresponding path program 1 times [2022-07-22 00:44:02,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:02,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004496474] [2022-07-22 00:44:02,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:02,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:02,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:02,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:02,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004496474] [2022-07-22 00:44:02,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004496474] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:44:02,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:44:02,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:44:02,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263735364] [2022-07-22 00:44:02,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:44:02,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:44:02,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:02,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:44:02,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:44:02,662 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) 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) [2022-07-22 00:44:02,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:02,715 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-07-22 00:44:02,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:44:02,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) 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 [2022-07-22 00:44:02,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:02,718 INFO L225 Difference]: With dead ends: 40 [2022-07-22 00:44:02,718 INFO L226 Difference]: Without dead ends: 37 [2022-07-22 00:44:02,719 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 [2022-07-22 00:44:02,720 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:02,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 59 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:44:02,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-22 00:44:02,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2022-07-22 00:44:02,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 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) [2022-07-22 00:44:02,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2022-07-22 00:44:02,727 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 8 [2022-07-22 00:44:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:02,727 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-07-22 00:44:02,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) 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) [2022-07-22 00:44:02,727 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2022-07-22 00:44:02,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 00:44:02,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:02,728 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:02,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 00:44:02,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:02,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:02,729 INFO L85 PathProgramCache]: Analyzing trace with hash -498171083, now seen corresponding path program 1 times [2022-07-22 00:44:02,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:02,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698874556] [2022-07-22 00:44:02,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:02,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:02,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:02,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698874556] [2022-07-22 00:44:02,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698874556] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:02,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472057622] [2022-07-22 00:44:02,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:02,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:02,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:02,803 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) [2022-07-22 00:44:02,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 00:44:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:02,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-22 00:44:02,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:02,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:44:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:03,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472057622] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:44:03,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:44:03,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-22 00:44:03,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462389349] [2022-07-22 00:44:03,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:44:03,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 00:44:03,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:03,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 00:44:03,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:44:03,007 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 12 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 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) [2022-07-22 00:44:03,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:03,169 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2022-07-22 00:44:03,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 00:44:03,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 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 13 [2022-07-22 00:44:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:03,171 INFO L225 Difference]: With dead ends: 92 [2022-07-22 00:44:03,171 INFO L226 Difference]: Without dead ends: 91 [2022-07-22 00:44:03,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2022-07-22 00:44:03,173 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 164 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:03,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 132 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:44:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-07-22 00:44:03,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2022-07-22 00:44:03,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 56 states have internal predecessors, (76), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-22 00:44:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2022-07-22 00:44:03,182 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 13 [2022-07-22 00:44:03,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:03,182 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2022-07-22 00:44:03,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 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) [2022-07-22 00:44:03,182 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2022-07-22 00:44:03,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-22 00:44:03,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:03,183 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:03,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 00:44:03,390 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 [2022-07-22 00:44:03,391 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:03,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:03,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2001544150, now seen corresponding path program 1 times [2022-07-22 00:44:03,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:03,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531988607] [2022-07-22 00:44:03,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:03,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 00:44:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:03,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 00:44:03,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:03,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531988607] [2022-07-22 00:44:03,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531988607] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:44:03,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:44:03,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:44:03,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008169410] [2022-07-22 00:44:03,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:44:03,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:44:03,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:03,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:44:03,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:44:03,449 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-07-22 00:44:03,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:03,473 INFO L93 Difference]: Finished difference Result 104 states and 140 transitions. [2022-07-22 00:44:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:44:03,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 15 [2022-07-22 00:44:03,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:03,475 INFO L225 Difference]: With dead ends: 104 [2022-07-22 00:44:03,475 INFO L226 Difference]: Without dead ends: 93 [2022-07-22 00:44:03,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:44:03,477 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:03,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 45 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:44:03,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-22 00:44:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-07-22 00:44:03,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 78 states have internal predecessors, (98), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2022-07-22 00:44:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2022-07-22 00:44:03,489 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 15 [2022-07-22 00:44:03,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:03,489 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2022-07-22 00:44:03,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-07-22 00:44:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2022-07-22 00:44:03,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-22 00:44:03,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:03,491 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1] [2022-07-22 00:44:03,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 00:44:03,491 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:03,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:03,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1663195447, now seen corresponding path program 2 times [2022-07-22 00:44:03,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:03,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16166702] [2022-07-22 00:44:03,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:03,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:03,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:03,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16166702] [2022-07-22 00:44:03,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16166702] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:03,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903582314] [2022-07-22 00:44:03,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:44:03,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:03,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:03,667 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) [2022-07-22 00:44:03,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 00:44:03,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:44:03,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:44:03,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-22 00:44:03,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:03,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:44:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:03,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903582314] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:44:03,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:44:03,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-22 00:44:03,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026039104] [2022-07-22 00:44:03,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:44:03,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-22 00:44:03,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:03,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-22 00:44:03,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:44:03,971 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 14 states have internal predecessors, (44), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:44:04,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:04,287 INFO L93 Difference]: Finished difference Result 248 states and 263 transitions. [2022-07-22 00:44:04,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-22 00:44:04,288 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 14 states have internal predecessors, (44), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-22 00:44:04,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:04,296 INFO L225 Difference]: With dead ends: 248 [2022-07-22 00:44:04,296 INFO L226 Difference]: Without dead ends: 247 [2022-07-22 00:44:04,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=515, Invalid=1207, Unknown=0, NotChecked=0, Total=1722 [2022-07-22 00:44:04,298 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 529 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:04,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 271 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:44:04,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-07-22 00:44:04,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 207. [2022-07-22 00:44:04,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 171 states have (on average 1.3099415204678362) internal successors, (224), 174 states have internal predecessors, (224), 12 states have call successors, (12), 11 states have call predecessors, (12), 19 states have return successors, (21), 21 states have call predecessors, (21), 11 states have call successors, (21) [2022-07-22 00:44:04,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2022-07-22 00:44:04,325 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 28 [2022-07-22 00:44:04,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:04,325 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2022-07-22 00:44:04,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 14 states have internal predecessors, (44), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:44:04,325 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2022-07-22 00:44:04,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-22 00:44:04,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:04,326 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:04,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-22 00:44:04,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:04,536 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:04,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:04,536 INFO L85 PathProgramCache]: Analyzing trace with hash 907320634, now seen corresponding path program 1 times [2022-07-22 00:44:04,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:04,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679532832] [2022-07-22 00:44:04,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:04,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:04,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 00:44:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:04,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:04,621 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:44:04,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:04,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679532832] [2022-07-22 00:44:04,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679532832] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:04,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990182459] [2022-07-22 00:44:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:04,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:04,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:04,626 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) [2022-07-22 00:44:04,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 00:44:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:04,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:44:04,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:44:04,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:44:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:44:04,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990182459] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:44:04,808 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:44:04,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-07-22 00:44:04,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778186684] [2022-07-22 00:44:04,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:44:04,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 00:44:04,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:04,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 00:44:04,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:44:04,813 INFO L87 Difference]: Start difference. First operand 207 states and 257 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 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) [2022-07-22 00:44:04,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:04,874 INFO L93 Difference]: Finished difference Result 400 states and 549 transitions. [2022-07-22 00:44:04,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 00:44:04,875 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 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 27 [2022-07-22 00:44:04,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:04,881 INFO L225 Difference]: With dead ends: 400 [2022-07-22 00:44:04,881 INFO L226 Difference]: Without dead ends: 398 [2022-07-22 00:44:04,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:44:04,885 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:04,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 90 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:44:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-07-22 00:44:04,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 377. [2022-07-22 00:44:04,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 315 states have (on average 1.253968253968254) internal successors, (395), 314 states have internal predecessors, (395), 12 states have call successors, (12), 11 states have call predecessors, (12), 46 states have return successors, (51), 51 states have call predecessors, (51), 11 states have call successors, (51) [2022-07-22 00:44:04,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 458 transitions. [2022-07-22 00:44:04,927 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 458 transitions. Word has length 27 [2022-07-22 00:44:04,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:04,928 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 458 transitions. [2022-07-22 00:44:04,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 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) [2022-07-22 00:44:04,928 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 458 transitions. [2022-07-22 00:44:04,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-22 00:44:04,929 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:04,929 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:04,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 00:44:05,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:05,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:05,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:05,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1937831374, now seen corresponding path program 1 times [2022-07-22 00:44:05,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:05,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380420203] [2022-07-22 00:44:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:05,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:05,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 00:44:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:44:05,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:05,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380420203] [2022-07-22 00:44:05,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380420203] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:05,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104218966] [2022-07-22 00:44:05,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:05,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:05,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:05,217 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) [2022-07-22 00:44:05,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 00:44:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:05,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:44:05,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:05,271 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:44:05,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:44:05,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104218966] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:44:05,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:44:05,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-07-22 00:44:05,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305153245] [2022-07-22 00:44:05,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:44:05,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 00:44:05,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:05,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 00:44:05,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:44:05,274 INFO L87 Difference]: Start difference. First operand 377 states and 458 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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) [2022-07-22 00:44:05,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:05,302 INFO L93 Difference]: Finished difference Result 377 states and 458 transitions. [2022-07-22 00:44:05,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:44:05,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 [2022-07-22 00:44:05,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:05,304 INFO L225 Difference]: With dead ends: 377 [2022-07-22 00:44:05,304 INFO L226 Difference]: Without dead ends: 333 [2022-07-22 00:44:05,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 00:44:05,306 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:05,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 52 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:44:05,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-07-22 00:44:05,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2022-07-22 00:44:05,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 279 states have (on average 1.060931899641577) internal successors, (296), 276 states have internal predecessors, (296), 12 states have call successors, (12), 11 states have call predecessors, (12), 40 states have return successors, (45), 45 states have call predecessors, (45), 11 states have call successors, (45) [2022-07-22 00:44:05,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 353 transitions. [2022-07-22 00:44:05,322 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 353 transitions. Word has length 28 [2022-07-22 00:44:05,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:05,322 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 353 transitions. [2022-07-22 00:44:05,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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) [2022-07-22 00:44:05,323 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 353 transitions. [2022-07-22 00:44:05,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-22 00:44:05,328 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:05,335 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1, 1] [2022-07-22 00:44:05,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 00:44:05,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:05,548 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1017748105, now seen corresponding path program 3 times [2022-07-22 00:44:05,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:05,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999243808] [2022-07-22 00:44:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:05,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:05,790 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:05,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:05,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999243808] [2022-07-22 00:44:05,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999243808] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:05,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018613501] [2022-07-22 00:44:05,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:44:05,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:05,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:05,793 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) [2022-07-22 00:44:05,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 00:44:05,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-22 00:44:05,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:44:05,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-22 00:44:05,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:05,924 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:05,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:44:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:06,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018613501] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:44:06,403 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:44:06,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-22 00:44:06,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525359450] [2022-07-22 00:44:06,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:44:06,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-22 00:44:06,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:06,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-22 00:44:06,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2022-07-22 00:44:06,405 INFO L87 Difference]: Start difference. First operand 333 states and 353 transitions. Second operand has 48 states, 45 states have (on average 2.0444444444444443) internal successors, (92), 26 states have internal predecessors, (92), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:44:07,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:07,375 INFO L93 Difference]: Finished difference Result 800 states and 833 transitions. [2022-07-22 00:44:07,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-07-22 00:44:07,376 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.0444444444444443) internal successors, (92), 26 states have internal predecessors, (92), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-07-22 00:44:07,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:07,378 INFO L225 Difference]: With dead ends: 800 [2022-07-22 00:44:07,378 INFO L226 Difference]: Without dead ends: 799 [2022-07-22 00:44:07,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=2204, Invalid=5278, Unknown=0, NotChecked=0, Total=7482 [2022-07-22 00:44:07,381 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1049 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:07,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1051 Valid, 423 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 00:44:07,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2022-07-22 00:44:07,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 777. [2022-07-22 00:44:07,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 651 states have (on average 1.0629800307219661) internal successors, (692), 648 states have internal predecessors, (692), 24 states have call successors, (24), 23 states have call predecessors, (24), 100 states have return successors, (105), 105 states have call predecessors, (105), 23 states have call successors, (105) [2022-07-22 00:44:07,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 821 transitions. [2022-07-22 00:44:07,401 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 821 transitions. Word has length 58 [2022-07-22 00:44:07,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:07,401 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 821 transitions. [2022-07-22 00:44:07,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.0444444444444443) internal successors, (92), 26 states have internal predecessors, (92), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:44:07,402 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 821 transitions. [2022-07-22 00:44:07,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-22 00:44:07,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:07,403 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:07,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 00:44:07,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:07,619 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:07,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:07,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1496867286, now seen corresponding path program 2 times [2022-07-22 00:44:07,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:07,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921725517] [2022-07-22 00:44:07,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:07,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 00:44:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:07,743 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-22 00:44:07,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:07,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921725517] [2022-07-22 00:44:07,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921725517] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:07,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272192182] [2022-07-22 00:44:07,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:44:07,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:07,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:07,745 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) [2022-07-22 00:44:07,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 00:44:07,775 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:44:07,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:44:07,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-22 00:44:07,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-22 00:44:07,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:44:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-07-22 00:44:08,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272192182] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:44:08,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:44:08,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-07-22 00:44:08,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665185561] [2022-07-22 00:44:08,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:44:08,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-22 00:44:08,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:08,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-22 00:44:08,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:44:08,229 INFO L87 Difference]: Start difference. First operand 777 states and 821 transitions. Second operand has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 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) [2022-07-22 00:44:08,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:08,313 INFO L93 Difference]: Finished difference Result 1714 states and 1895 transitions. [2022-07-22 00:44:08,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 00:44:08,314 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 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 63 [2022-07-22 00:44:08,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:08,317 INFO L225 Difference]: With dead ends: 1714 [2022-07-22 00:44:08,317 INFO L226 Difference]: Without dead ends: 1416 [2022-07-22 00:44:08,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 119 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-07-22 00:44:08,319 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:08,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 94 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:44:08,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2022-07-22 00:44:08,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1416. [2022-07-22 00:44:08,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1203 states have (on average 1.029093931837074) internal successors, (1238), 1194 states have internal predecessors, (1238), 24 states have call successors, (24), 23 states have call predecessors, (24), 187 states have return successors, (198), 198 states have call predecessors, (198), 23 states have call successors, (198) [2022-07-22 00:44:08,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1460 transitions. [2022-07-22 00:44:08,345 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1460 transitions. Word has length 63 [2022-07-22 00:44:08,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:08,345 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 1460 transitions. [2022-07-22 00:44:08,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 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) [2022-07-22 00:44:08,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1460 transitions. [2022-07-22 00:44:08,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-22 00:44:08,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:08,358 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1, 1] [2022-07-22 00:44:08,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 00:44:08,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:08,571 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:08,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:08,572 INFO L85 PathProgramCache]: Analyzing trace with hash 255962615, now seen corresponding path program 4 times [2022-07-22 00:44:08,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:08,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034074023] [2022-07-22 00:44:08,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:08,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:09,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:09,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034074023] [2022-07-22 00:44:09,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034074023] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:09,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162924070] [2022-07-22 00:44:09,310 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 00:44:09,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:09,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:09,311 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) [2022-07-22 00:44:09,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 00:44:09,408 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 00:44:09,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:44:09,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-22 00:44:09,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:09,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:09,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:44:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:11,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162924070] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:44:11,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:44:11,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-22 00:44:11,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008092854] [2022-07-22 00:44:11,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:44:11,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-22 00:44:11,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:11,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-22 00:44:11,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2022-07-22 00:44:11,246 INFO L87 Difference]: Start difference. First operand 1416 states and 1460 transitions. Second operand has 96 states, 93 states have (on average 2.021505376344086) internal successors, (188), 50 states have internal predecessors, (188), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:44:14,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:14,415 INFO L93 Difference]: Finished difference Result 3359 states and 3428 transitions. [2022-07-22 00:44:14,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-07-22 00:44:14,421 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 2.021505376344086) internal successors, (188), 50 states have internal predecessors, (188), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-07-22 00:44:14,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:14,428 INFO L225 Difference]: With dead ends: 3359 [2022-07-22 00:44:14,429 INFO L226 Difference]: Without dead ends: 3358 [2022-07-22 00:44:14,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7136 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=9119, Invalid=22033, Unknown=0, NotChecked=0, Total=31152 [2022-07-22 00:44:14,435 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 3331 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:14,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3333 Valid, 1048 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 00:44:14,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2022-07-22 00:44:14,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3312. [2022-07-22 00:44:14,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 2811 states have (on average 1.0295268587691213) internal successors, (2894), 2802 states have internal predecessors, (2894), 48 states have call successors, (48), 47 states have call predecessors, (48), 451 states have return successors, (462), 462 states have call predecessors, (462), 47 states have call successors, (462) [2022-07-22 00:44:14,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 3404 transitions. [2022-07-22 00:44:14,491 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 3404 transitions. Word has length 118 [2022-07-22 00:44:14,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:14,492 INFO L495 AbstractCegarLoop]: Abstraction has 3312 states and 3404 transitions. [2022-07-22 00:44:14,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 2.021505376344086) internal successors, (188), 50 states have internal predecessors, (188), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:44:14,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 3404 transitions. [2022-07-22 00:44:14,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-22 00:44:14,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:14,496 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:14,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 00:44:14,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:14,713 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:14,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:14,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1973780778, now seen corresponding path program 3 times [2022-07-22 00:44:14,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:14,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748928502] [2022-07-22 00:44:14,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:14,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:14,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:14,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 00:44:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:14,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:14,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:14,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:14,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:14,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:15,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:15,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-22 00:44:15,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:15,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748928502] [2022-07-22 00:44:15,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748928502] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:15,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558713089] [2022-07-22 00:44:15,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-22 00:44:15,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:15,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:15,128 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) [2022-07-22 00:44:15,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 00:44:15,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-22 00:44:15,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:44:15,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-22 00:44:15,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:15,359 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-22 00:44:15,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:44:18,774 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-22 00:44:18,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558713089] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:44:18,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:44:18,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2022-07-22 00:44:18,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62972646] [2022-07-22 00:44:18,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:44:18,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-22 00:44:18,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:18,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-22 00:44:18,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2022-07-22 00:44:18,777 INFO L87 Difference]: Start difference. First operand 3312 states and 3404 transitions. Second operand has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-22 00:44:18,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:18,952 INFO L93 Difference]: Finished difference Result 7201 states and 7856 transitions. [2022-07-22 00:44:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-07-22 00:44:18,952 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2022-07-22 00:44:18,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:18,979 INFO L225 Difference]: With dead ends: 7201 [2022-07-22 00:44:18,980 INFO L226 Difference]: Without dead ends: 5850 [2022-07-22 00:44:18,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 257 SyntacticMatches, 10 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2022-07-22 00:44:18,987 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 99 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:18,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 108 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:44:18,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2022-07-22 00:44:19,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5850. [2022-07-22 00:44:19,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5850 states, 4995 states have (on average 1.0142142142142143) internal successors, (5066), 4974 states have internal predecessors, (5066), 48 states have call successors, (48), 47 states have call predecessors, (48), 805 states have return successors, (828), 828 states have call predecessors, (828), 47 states have call successors, (828) [2022-07-22 00:44:19,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5850 states to 5850 states and 5942 transitions. [2022-07-22 00:44:19,126 INFO L78 Accepts]: Start accepts. Automaton has 5850 states and 5942 transitions. Word has length 135 [2022-07-22 00:44:19,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:19,126 INFO L495 AbstractCegarLoop]: Abstraction has 5850 states and 5942 transitions. [2022-07-22 00:44:19,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2022-07-22 00:44:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 5850 states and 5942 transitions. [2022-07-22 00:44:19,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-22 00:44:19,135 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:19,135 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1, 1] [2022-07-22 00:44:19,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 00:44:19,355 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,SelfDestructingSolverStorable10 [2022-07-22 00:44:19,356 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:19,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:19,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1181417737, now seen corresponding path program 5 times [2022-07-22 00:44:19,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:19,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182243272] [2022-07-22 00:44:19,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:19,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:21,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:21,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182243272] [2022-07-22 00:44:21,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182243272] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:21,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430551348] [2022-07-22 00:44:21,950 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 00:44:21,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:21,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:21,952 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) [2022-07-22 00:44:21,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 00:44:22,129 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-22 00:44:22,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:44:22,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-22 00:44:22,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:22,453 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:22,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:44:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:28,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430551348] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:44:28,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:44:28,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-22 00:44:28,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341294720] [2022-07-22 00:44:28,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:44:28,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-22 00:44:28,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:28,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-22 00:44:28,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2022-07-22 00:44:28,191 INFO L87 Difference]: Start difference. First operand 5850 states and 5942 transitions. Second operand has 192 states, 189 states have (on average 2.0105820105820107) internal successors, (380), 98 states have internal predecessors, (380), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:44:42,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:42,015 INFO L93 Difference]: Finished difference Result 13769 states and 13910 transitions. [2022-07-22 00:44:42,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 264 states. [2022-07-22 00:44:42,016 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 2.0105820105820107) internal successors, (380), 98 states have internal predecessors, (380), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2022-07-22 00:44:42,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:42,045 INFO L225 Difference]: With dead ends: 13769 [2022-07-22 00:44:42,045 INFO L226 Difference]: Without dead ends: 13768 [2022-07-22 00:44:42,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 379 SyntacticMatches, 1 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30092 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=37097, Invalid=89995, Unknown=0, NotChecked=0, Total=127092 [2022-07-22 00:44:42,056 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 7168 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 1669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7170 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 3573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1669 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:42,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7170 Valid, 2124 Invalid, 3573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1669 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 00:44:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13768 states. [2022-07-22 00:44:42,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13768 to 13674. [2022-07-22 00:44:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13674 states, 11667 states have (on average 1.0143138767463786) internal successors, (11834), 11646 states have internal predecessors, (11834), 96 states have call successors, (96), 95 states have call predecessors, (96), 1909 states have return successors, (1932), 1932 states have call predecessors, (1932), 95 states have call successors, (1932) [2022-07-22 00:44:42,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13674 states to 13674 states and 13862 transitions. [2022-07-22 00:44:42,272 INFO L78 Accepts]: Start accepts. Automaton has 13674 states and 13862 transitions. Word has length 238 [2022-07-22 00:44:42,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:42,273 INFO L495 AbstractCegarLoop]: Abstraction has 13674 states and 13862 transitions. [2022-07-22 00:44:42,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 2.0105820105820107) internal successors, (380), 98 states have internal predecessors, (380), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:44:42,274 INFO L276 IsEmpty]: Start isEmpty. Operand 13674 states and 13862 transitions. [2022-07-22 00:44:42,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-22 00:44:42,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:42,280 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:42,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 00:44:42,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:42,505 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:44:42,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:42,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1518549206, now seen corresponding path program 4 times [2022-07-22 00:44:42,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:42,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606359609] [2022-07-22 00:44:42,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:42,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:42,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 00:44:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:42,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:42,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:42,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:42,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:42,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:44:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:43,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3016 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2022-07-22 00:44:43,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:43,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606359609] [2022-07-22 00:44:43,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606359609] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:44:43,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118916302] [2022-07-22 00:44:43,849 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-22 00:44:43,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:44:43,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:43,857 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) [2022-07-22 00:44:43,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 00:44:44,001 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-22 00:44:44,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:44:44,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 47 conjunts are in the unsatisfiable core [2022-07-22 00:44:44,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:44:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3016 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2022-07-22 00:44:44,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:45:14,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3016 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2022-07-22 00:45:14,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118916302] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:45:14,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:45:14,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 63 [2022-07-22 00:45:14,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018775755] [2022-07-22 00:45:14,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:45:14,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-07-22 00:45:14,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:45:14,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-07-22 00:45:14,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2022-07-22 00:45:14,894 INFO L87 Difference]: Start difference. First operand 13674 states and 13862 transitions. Second operand has 64 states, 63 states have (on average 3.0793650793650795) internal successors, (194), 64 states have internal predecessors, (194), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-22 00:45:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:45:15,163 INFO L93 Difference]: Finished difference Result 18955 states and 19902 transitions. [2022-07-22 00:45:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-07-22 00:45:15,163 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.0793650793650795) internal successors, (194), 64 states have internal predecessors, (194), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) Word has length 279 [2022-07-22 00:45:15,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:45:15,215 INFO L225 Difference]: With dead ends: 18955 [2022-07-22 00:45:15,215 INFO L226 Difference]: Without dead ends: 17494 [2022-07-22 00:45:15,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 549 SyntacticMatches, 38 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3263 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2022-07-22 00:45:15,227 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 90 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 00:45:15,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 151 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 00:45:15,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17494 states. [2022-07-22 00:45:15,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17494 to 17494. [2022-07-22 00:45:15,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17494 states, 14947 states have (on average 1.0106375861376864) internal successors, (15106), 14918 states have internal predecessors, (15106), 96 states have call successors, (96), 95 states have call predecessors, (96), 2449 states have return successors, (2480), 2480 states have call predecessors, (2480), 95 states have call successors, (2480) [2022-07-22 00:45:15,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17494 states to 17494 states and 17682 transitions. [2022-07-22 00:45:15,521 INFO L78 Accepts]: Start accepts. Automaton has 17494 states and 17682 transitions. Word has length 279 [2022-07-22 00:45:15,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:45:15,521 INFO L495 AbstractCegarLoop]: Abstraction has 17494 states and 17682 transitions. [2022-07-22 00:45:15,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.0793650793650795) internal successors, (194), 64 states have internal predecessors, (194), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-22 00:45:15,521 INFO L276 IsEmpty]: Start isEmpty. Operand 17494 states and 17682 transitions. [2022-07-22 00:45:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-07-22 00:45:15,533 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:45:15,533 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1] [2022-07-22 00:45:15,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 00:45:15,747 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,SelfDestructingSolverStorable12 [2022-07-22 00:45:15,747 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:45:15,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:45:15,748 INFO L85 PathProgramCache]: Analyzing trace with hash 56511274, now seen corresponding path program 5 times [2022-07-22 00:45:15,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:45:15,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413005116] [2022-07-22 00:45:15,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:45:15,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:45:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:15,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 00:45:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:15,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:16,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 00:45:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:45:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 5552 backedges. 3105 proven. 212 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2022-07-22 00:45:17,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:45:17,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413005116] [2022-07-22 00:45:17,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413005116] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:45:17,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819543822] [2022-07-22 00:45:17,651 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-22 00:45:17,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:45:17,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:45:17,653 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) [2022-07-22 00:45:17,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 00:45:18,357 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-07-22 00:45:18,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:45:18,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 66 conjunts are in the unsatisfiable core [2022-07-22 00:45:18,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:45:18,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5552 backedges. 3165 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2022-07-22 00:45:18,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:46:47,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5552 backedges. 3165 proven. 1922 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-07-22 00:46:47,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819543822] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:46:47,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:46:47,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 67] total 70 [2022-07-22 00:46:47,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903149722] [2022-07-22 00:46:47,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:46:47,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-07-22 00:46:47,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:47,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-07-22 00:46:47,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1164, Invalid=3666, Unknown=0, NotChecked=0, Total=4830 [2022-07-22 00:46:47,289 INFO L87 Difference]: Start difference. First operand 17494 states and 17682 transitions. Second operand has 70 states, 69 states have (on average 4.681159420289855) internal successors, (323), 69 states have internal predecessors, (323), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) [2022-07-22 00:46:48,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:48,055 INFO L93 Difference]: Finished difference Result 17964 states and 18153 transitions. [2022-07-22 00:46:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-22 00:46:48,055 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 4.681159420289855) internal successors, (323), 69 states have internal predecessors, (323), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) Word has length 375 [2022-07-22 00:46:48,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:48,058 INFO L225 Difference]: With dead ends: 17964 [2022-07-22 00:46:48,058 INFO L226 Difference]: Without dead ends: 480 [2022-07-22 00:46:48,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 878 GetRequests, 775 SyntacticMatches, 3 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3311, Invalid=6991, Unknown=0, NotChecked=0, Total=10302 [2022-07-22 00:46:48,077 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 183 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:46:48,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1205 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:46:48,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-07-22 00:46:48,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2022-07-22 00:46:48,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 383 states have (on average 1.0026109660574412) internal successors, (384), 383 states have internal predecessors, (384), 95 states have call successors, (95), 95 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 00:46:48,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 479 transitions. [2022-07-22 00:46:48,090 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 479 transitions. Word has length 375 [2022-07-22 00:46:48,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:48,090 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 479 transitions. [2022-07-22 00:46:48,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 4.681159420289855) internal successors, (323), 69 states have internal predecessors, (323), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) [2022-07-22 00:46:48,091 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 479 transitions. [2022-07-22 00:46:48,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-07-22 00:46:48,095 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:48,095 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 1, 1, 1, 1, 1] [2022-07-22 00:46:48,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:48,328 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,SelfDestructingSolverStorable13 [2022-07-22 00:46:48,328 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-22 00:46:48,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:48,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1135517943, now seen corresponding path program 6 times [2022-07-22 00:46:48,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:48,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189900808] [2022-07-22 00:46:48,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:48,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:57,072 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:57,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:57,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189900808] [2022-07-22 00:46:57,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189900808] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:57,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120524814] [2022-07-22 00:46:57,073 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-22 00:46:57,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:57,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:57,074 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) [2022-07-22 00:46:57,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 00:46:58,901 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-22 00:46:58,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:46:58,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-22 00:46:58,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:59,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:47:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:47:21,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120524814] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:47:21,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:47:21,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-22 00:47:21,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671836337] [2022-07-22 00:47:21,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:47:21,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-22 00:47:21,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:21,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-22 00:47:21,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2022-07-22 00:47:21,379 INFO L87 Difference]: Start difference. First operand 479 states and 479 transitions. Second operand has 384 states, 381 states have (on average 2.005249343832021) internal successors, (764), 194 states have internal predecessors, (764), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)