./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3777e2ab1819fd82e3658352e2b99c7da6626d046ae65288a9623558224827f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:42:46,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:42:46,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:42:46,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:42:46,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:42:46,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:42:46,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:42:46,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:42:46,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:42:46,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:42:46,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:42:46,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:42:46,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:42:46,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:42:46,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:42:46,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:42:46,089 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:42:46,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:42:46,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:42:46,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:42:46,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:42:46,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:42:46,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:42:46,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:42:46,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:42:46,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:42:46,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:42:46,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:42:46,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:42:46,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:42:46,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:42:46,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:42:46,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:42:46,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:42:46,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:42:46,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:42:46,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:42:46,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:42:46,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:42:46,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:42:46,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:42:46,119 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 01:42:46,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:42:46,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:42:46,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:42:46,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:42:46,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:42:46,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:42:46,147 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:42:46,147 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:42:46,147 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:42:46,147 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:42:46,148 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:42:46,148 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:42:46,148 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:42:46,148 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:42:46,148 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:42:46,149 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:42:46,149 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:42:46,149 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:42:46,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:42:46,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:42:46,151 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:42:46,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:42:46,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:42:46,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:42:46,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:42:46,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:42:46,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:42:46,152 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 01:42:46,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:42:46,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:42:46,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:42:46,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:42:46,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:42:46,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:42:46,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:42:46,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:42:46,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:42:46,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:42:46,155 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:42:46,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:42:46,155 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:42:46,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:42:46,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:42:46,156 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3777e2ab1819fd82e3658352e2b99c7da6626d046ae65288a9623558224827f [2021-11-21 01:42:46,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:42:46,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:42:46,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:42:46,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:42:46,447 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:42:46,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c [2021-11-21 01:42:46,518 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/data/25c9aa249/a059aabf625347d8b26f15a8cab4499b/FLAG978dc57c9 [2021-11-21 01:42:46,974 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:42:46,975 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c [2021-11-21 01:42:46,995 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/data/25c9aa249/a059aabf625347d8b26f15a8cab4499b/FLAG978dc57c9 [2021-11-21 01:42:47,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/data/25c9aa249/a059aabf625347d8b26f15a8cab4499b [2021-11-21 01:42:47,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:42:47,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:42:47,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:42:47,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:42:47,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:42:47,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e1c58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47, skipping insertion in model container [2021-11-21 01:42:47,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:42:47,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:42:47,683 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2021-11-21 01:42:47,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:42:47,698 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:42:47,755 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2021-11-21 01:42:47,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:42:47,788 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:42:47,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47 WrapperNode [2021-11-21 01:42:47,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:42:47,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:42:47,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:42:47,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:42:47,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,878 INFO L137 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 525 [2021-11-21 01:42:47,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:42:47,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:42:47,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:42:47,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:42:47,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:42:47,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:42:47,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:42:47,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:42:47,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (1/1) ... [2021-11-21 01:42:47,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:42:47,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:42:47,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:42:47,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:42:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:42:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:42:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:42:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:42:48,095 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:42:48,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:42:48,112 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-21 01:42:48,644 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-21 01:42:48,645 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-21 01:42:48,645 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:42:48,762 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:42:48,762 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:42:48,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:42:48 BoogieIcfgContainer [2021-11-21 01:42:48,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:42:48,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:42:48,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:42:48,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:42:48,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:42:47" (1/3) ... [2021-11-21 01:42:48,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df679fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:42:48, skipping insertion in model container [2021-11-21 01:42:48,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:47" (2/3) ... [2021-11-21 01:42:48,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df679fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:42:48, skipping insertion in model container [2021-11-21 01:42:48,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:42:48" (3/3) ... [2021-11-21 01:42:48,775 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.BV.c.cil.c [2021-11-21 01:42:48,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:42:48,781 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-21 01:42:48,828 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:42:48,836 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:42:48,836 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-21 01:42:48,856 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 107 states have (on average 1.7757009345794392) internal successors, (190), 111 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:48,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:42:48,862 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:48,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:48,863 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:48,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:48,869 INFO L85 PathProgramCache]: Analyzing trace with hash 44407325, now seen corresponding path program 1 times [2021-11-21 01:42:48,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:48,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450511811] [2021-11-21 01:42:48,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:48,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:42:49,100 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:49,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450511811] [2021-11-21 01:42:49,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450511811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:49,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:49,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:42:49,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521708199] [2021-11-21 01:42:49,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:49,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:49,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:49,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:49,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:49,151 INFO L87 Difference]: Start difference. First operand has 112 states, 107 states have (on average 1.7757009345794392) internal successors, (190), 111 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:49,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:49,448 INFO L93 Difference]: Finished difference Result 243 states and 412 transitions. [2021-11-21 01:42:49,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:49,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 01:42:49,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:49,467 INFO L225 Difference]: With dead ends: 243 [2021-11-21 01:42:49,467 INFO L226 Difference]: Without dead ends: 126 [2021-11-21 01:42:49,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:49,476 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 27 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:49,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 249 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:42:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-21 01:42:49,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2021-11-21 01:42:49,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 120 states have (on average 1.4916666666666667) internal successors, (179), 123 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:49,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 179 transitions. [2021-11-21 01:42:49,543 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 179 transitions. Word has length 11 [2021-11-21 01:42:49,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:49,543 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 179 transitions. [2021-11-21 01:42:49,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:49,544 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 179 transitions. [2021-11-21 01:42:49,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-21 01:42:49,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:49,548 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:49,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:42:49,549 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:49,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:49,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1516539176, now seen corresponding path program 1 times [2021-11-21 01:42:49,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:49,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593927094] [2021-11-21 01:42:49,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:49,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:42:49,662 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:49,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593927094] [2021-11-21 01:42:49,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593927094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:49,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:49,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:49,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082434667] [2021-11-21 01:42:49,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:49,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:49,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:49,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:49,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:49,668 INFO L87 Difference]: Start difference. First operand 124 states and 179 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:49,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:49,902 INFO L93 Difference]: Finished difference Result 297 states and 445 transitions. [2021-11-21 01:42:49,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:49,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-21 01:42:49,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:49,909 INFO L225 Difference]: With dead ends: 297 [2021-11-21 01:42:49,910 INFO L226 Difference]: Without dead ends: 163 [2021-11-21 01:42:49,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:49,918 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 67 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:49,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 154 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:42:49,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-21 01:42:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 160. [2021-11-21 01:42:49,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 156 states have (on average 1.4615384615384615) internal successors, (228), 159 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 228 transitions. [2021-11-21 01:42:49,944 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 228 transitions. Word has length 25 [2021-11-21 01:42:49,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:49,946 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 228 transitions. [2021-11-21 01:42:49,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:49,946 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 228 transitions. [2021-11-21 01:42:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:42:49,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:49,953 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:49,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:42:49,955 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:49,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:49,956 INFO L85 PathProgramCache]: Analyzing trace with hash 585811026, now seen corresponding path program 1 times [2021-11-21 01:42:49,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:49,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815208731] [2021-11-21 01:42:49,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:49,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:42:50,025 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:50,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815208731] [2021-11-21 01:42:50,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815208731] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:50,026 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:50,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:50,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088929084] [2021-11-21 01:42:50,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:50,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:50,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:50,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:50,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:50,028 INFO L87 Difference]: Start difference. First operand 160 states and 228 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:50,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:50,216 INFO L93 Difference]: Finished difference Result 389 states and 573 transitions. [2021-11-21 01:42:50,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:50,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-21 01:42:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:50,219 INFO L225 Difference]: With dead ends: 389 [2021-11-21 01:42:50,220 INFO L226 Difference]: Without dead ends: 221 [2021-11-21 01:42:50,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:50,222 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 114 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:50,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 116 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:42:50,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-11-21 01:42:50,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 208. [2021-11-21 01:42:50,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 204 states have (on average 1.446078431372549) internal successors, (295), 207 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:50,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 295 transitions. [2021-11-21 01:42:50,241 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 295 transitions. Word has length 28 [2021-11-21 01:42:50,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:50,242 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 295 transitions. [2021-11-21 01:42:50,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 295 transitions. [2021-11-21 01:42:50,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-21 01:42:50,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:50,244 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:50,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:42:50,245 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:50,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:50,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1232252660, now seen corresponding path program 1 times [2021-11-21 01:42:50,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:50,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760719200] [2021-11-21 01:42:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:50,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:50,330 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 01:42:50,331 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:50,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760719200] [2021-11-21 01:42:50,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760719200] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:50,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:50,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:50,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25704059] [2021-11-21 01:42:50,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:50,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:50,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:50,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:50,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:50,334 INFO L87 Difference]: Start difference. First operand 208 states and 295 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:50,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:50,554 INFO L93 Difference]: Finished difference Result 488 states and 714 transitions. [2021-11-21 01:42:50,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:50,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-21 01:42:50,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:50,557 INFO L225 Difference]: With dead ends: 488 [2021-11-21 01:42:50,558 INFO L226 Difference]: Without dead ends: 279 [2021-11-21 01:42:50,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:50,560 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 120 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:50,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 106 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:42:50,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-21 01:42:50,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 275. [2021-11-21 01:42:50,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 271 states have (on average 1.4944649446494465) internal successors, (405), 274 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:50,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 405 transitions. [2021-11-21 01:42:50,578 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 405 transitions. Word has length 42 [2021-11-21 01:42:50,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:50,579 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 405 transitions. [2021-11-21 01:42:50,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:50,579 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 405 transitions. [2021-11-21 01:42:50,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-21 01:42:50,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:50,583 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:50,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:42:50,584 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:50,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:50,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1907067414, now seen corresponding path program 1 times [2021-11-21 01:42:50,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:50,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953279524] [2021-11-21 01:42:50,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:50,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-21 01:42:50,643 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:50,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953279524] [2021-11-21 01:42:50,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953279524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:50,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:50,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:50,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982850418] [2021-11-21 01:42:50,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:50,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:50,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:50,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:50,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:50,646 INFO L87 Difference]: Start difference. First operand 275 states and 405 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:50,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:50,894 INFO L93 Difference]: Finished difference Result 599 states and 890 transitions. [2021-11-21 01:42:50,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:50,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-21 01:42:50,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:50,898 INFO L225 Difference]: With dead ends: 599 [2021-11-21 01:42:50,898 INFO L226 Difference]: Without dead ends: 326 [2021-11-21 01:42:50,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:50,900 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 130 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:50,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 102 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:42:50,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-11-21 01:42:50,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 287. [2021-11-21 01:42:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 283 states have (on average 1.4840989399293287) internal successors, (420), 286 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:50,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 420 transitions. [2021-11-21 01:42:50,924 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 420 transitions. Word has length 70 [2021-11-21 01:42:50,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:50,925 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 420 transitions. [2021-11-21 01:42:50,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:50,925 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 420 transitions. [2021-11-21 01:42:50,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-21 01:42:50,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:50,946 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:50,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:42:50,946 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:50,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:50,947 INFO L85 PathProgramCache]: Analyzing trace with hash -961291751, now seen corresponding path program 1 times [2021-11-21 01:42:50,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:50,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303939156] [2021-11-21 01:42:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:50,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 01:42:51,089 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:51,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303939156] [2021-11-21 01:42:51,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303939156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:51,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:51,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:51,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683672723] [2021-11-21 01:42:51,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:51,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:51,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:51,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:51,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:51,091 INFO L87 Difference]: Start difference. First operand 287 states and 420 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:51,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:51,338 INFO L93 Difference]: Finished difference Result 626 states and 925 transitions. [2021-11-21 01:42:51,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:42:51,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-21 01:42:51,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:51,341 INFO L225 Difference]: With dead ends: 626 [2021-11-21 01:42:51,342 INFO L226 Difference]: Without dead ends: 341 [2021-11-21 01:42:51,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:51,343 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 77 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:51,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 243 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:42:51,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-21 01:42:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 332. [2021-11-21 01:42:51,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 328 states have (on average 1.399390243902439) internal successors, (459), 331 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:51,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 459 transitions. [2021-11-21 01:42:51,358 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 459 transitions. Word has length 79 [2021-11-21 01:42:51,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:51,358 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 459 transitions. [2021-11-21 01:42:51,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:51,359 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 459 transitions. [2021-11-21 01:42:51,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-21 01:42:51,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:51,363 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:51,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:42:51,363 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:51,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:51,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1948707583, now seen corresponding path program 1 times [2021-11-21 01:42:51,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:51,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488479704] [2021-11-21 01:42:51,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:51,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-21 01:42:51,436 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:51,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488479704] [2021-11-21 01:42:51,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488479704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:51,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:51,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:51,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653771609] [2021-11-21 01:42:51,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:51,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:51,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:51,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:51,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:51,438 INFO L87 Difference]: Start difference. First operand 332 states and 459 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:51,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:51,654 INFO L93 Difference]: Finished difference Result 671 states and 928 transitions. [2021-11-21 01:42:51,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:51,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-21 01:42:51,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:51,658 INFO L225 Difference]: With dead ends: 671 [2021-11-21 01:42:51,658 INFO L226 Difference]: Without dead ends: 340 [2021-11-21 01:42:51,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:51,660 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 125 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:51,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 102 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:42:51,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-11-21 01:42:51,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 335. [2021-11-21 01:42:51,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 331 states have (on average 1.392749244712991) internal successors, (461), 334 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:51,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 461 transitions. [2021-11-21 01:42:51,677 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 461 transitions. Word has length 80 [2021-11-21 01:42:51,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:51,678 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 461 transitions. [2021-11-21 01:42:51,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 461 transitions. [2021-11-21 01:42:51,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-21 01:42:51,684 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:51,684 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:51,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:42:51,686 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:51,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:51,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1329185286, now seen corresponding path program 1 times [2021-11-21 01:42:51,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:51,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551368173] [2021-11-21 01:42:51,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:51,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-11-21 01:42:51,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:51,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551368173] [2021-11-21 01:42:51,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551368173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:51,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:51,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:51,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559936473] [2021-11-21 01:42:51,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:51,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:51,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:51,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:51,821 INFO L87 Difference]: Start difference. First operand 335 states and 461 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:51,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:51,966 INFO L93 Difference]: Finished difference Result 701 states and 967 transitions. [2021-11-21 01:42:51,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:51,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-21 01:42:51,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:51,972 INFO L225 Difference]: With dead ends: 701 [2021-11-21 01:42:51,972 INFO L226 Difference]: Without dead ends: 368 [2021-11-21 01:42:51,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:51,974 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 22 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:51,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 212 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:42:51,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-11-21 01:42:51,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 358. [2021-11-21 01:42:51,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 354 states have (on average 1.3757062146892656) internal successors, (487), 357 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:51,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 487 transitions. [2021-11-21 01:42:51,988 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 487 transitions. Word has length 98 [2021-11-21 01:42:51,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:51,989 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 487 transitions. [2021-11-21 01:42:51,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:51,989 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 487 transitions. [2021-11-21 01:42:51,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-21 01:42:51,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:51,990 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:51,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:42:51,991 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:51,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:51,991 INFO L85 PathProgramCache]: Analyzing trace with hash 542871737, now seen corresponding path program 1 times [2021-11-21 01:42:51,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:51,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542002878] [2021-11-21 01:42:51,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:51,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:52,042 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-21 01:42:52,042 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:52,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542002878] [2021-11-21 01:42:52,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542002878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:52,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:52,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:52,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304768447] [2021-11-21 01:42:52,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:52,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:52,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:52,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:52,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:52,044 INFO L87 Difference]: Start difference. First operand 358 states and 487 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:52,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:52,164 INFO L93 Difference]: Finished difference Result 746 states and 1019 transitions. [2021-11-21 01:42:52,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:52,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-21 01:42:52,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:52,167 INFO L225 Difference]: With dead ends: 746 [2021-11-21 01:42:52,167 INFO L226 Difference]: Without dead ends: 390 [2021-11-21 01:42:52,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:52,169 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 15 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:52,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 212 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:42:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-11-21 01:42:52,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 383. [2021-11-21 01:42:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 379 states have (on average 1.358839050131926) internal successors, (515), 382 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:52,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 515 transitions. [2021-11-21 01:42:52,183 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 515 transitions. Word has length 122 [2021-11-21 01:42:52,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:52,183 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 515 transitions. [2021-11-21 01:42:52,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:52,184 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 515 transitions. [2021-11-21 01:42:52,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-21 01:42:52,185 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:52,185 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:52,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:42:52,186 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:52,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:52,186 INFO L85 PathProgramCache]: Analyzing trace with hash -9132918, now seen corresponding path program 1 times [2021-11-21 01:42:52,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:52,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025116511] [2021-11-21 01:42:52,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:52,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:52,233 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-21 01:42:52,233 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:52,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025116511] [2021-11-21 01:42:52,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025116511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:52,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:52,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:42:52,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280927117] [2021-11-21 01:42:52,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:52,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:42:52,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:52,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:42:52,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:52,235 INFO L87 Difference]: Start difference. First operand 383 states and 515 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:52,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:52,368 INFO L93 Difference]: Finished difference Result 794 states and 1068 transitions. [2021-11-21 01:42:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:42:52,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-21 01:42:52,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:52,372 INFO L225 Difference]: With dead ends: 794 [2021-11-21 01:42:52,372 INFO L226 Difference]: Without dead ends: 413 [2021-11-21 01:42:52,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:42:52,373 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 32 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:52,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 217 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:42:52,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-11-21 01:42:52,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 402. [2021-11-21 01:42:52,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 398 states have (on average 1.349246231155779) internal successors, (537), 401 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:52,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 537 transitions. [2021-11-21 01:42:52,390 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 537 transitions. Word has length 125 [2021-11-21 01:42:52,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:52,390 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 537 transitions. [2021-11-21 01:42:52,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:42:52,391 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 537 transitions. [2021-11-21 01:42:52,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-21 01:42:52,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:52,392 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:52,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:42:52,393 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:42:52,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:52,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1010092189, now seen corresponding path program 1 times [2021-11-21 01:42:52,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:52,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302699053] [2021-11-21 01:42:52,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:52,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 100 proven. 4 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-21 01:42:52,447 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:52,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302699053] [2021-11-21 01:42:52,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302699053] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:42:52,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366422638] [2021-11-21 01:42:52,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:52,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:42:52,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:42:52,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:42:52,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:42:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:52,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:42:52,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:42:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 100 proven. 4 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-21 01:42:52,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:42:53,218 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 100 proven. 4 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-21 01:42:53,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366422638] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:42:53,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [451434426] [2021-11-21 01:42:53,244 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2021-11-21 01:42:53,245 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:42:53,250 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:42:53,256 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:42:53,257 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:50:13,454 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:50:30,677 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:50:30,677 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:50:30,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-11-21 01:50:30,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958872055] [2021-11-21 01:50:30,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:50:30,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:50:30,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:50:30,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:50:30,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=474, Invalid=2282, Unknown=0, NotChecked=0, Total=2756 [2021-11-21 01:50:30,680 INFO L87 Difference]: Start difference. First operand 402 states and 537 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:50:31,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:50:31,468 INFO L93 Difference]: Finished difference Result 1695 states and 2294 transitions. [2021-11-21 01:50:31,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:50:31,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-21 01:50:31,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:50:31,479 INFO L225 Difference]: With dead ends: 1695 [2021-11-21 01:50:31,479 INFO L226 Difference]: Without dead ends: 1260 [2021-11-21 01:50:31,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 368 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1215 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=499, Invalid=2693, Unknown=0, NotChecked=0, Total=3192 [2021-11-21 01:50:31,483 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 624 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:50:31,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [624 Valid, 430 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 01:50:31,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2021-11-21 01:50:31,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1096. [2021-11-21 01:50:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1092 states have (on average 1.38003663003663) internal successors, (1507), 1095 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:50:31,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1507 transitions. [2021-11-21 01:50:31,533 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1507 transitions. Word has length 138 [2021-11-21 01:50:31,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:50:31,534 INFO L470 AbstractCegarLoop]: Abstraction has 1096 states and 1507 transitions. [2021-11-21 01:50:31,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:50:31,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1507 transitions. [2021-11-21 01:50:31,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-21 01:50:31,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:50:31,537 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:50:31,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:50:31,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-21 01:50:31,758 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-21 01:50:31,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:50:31,759 INFO L85 PathProgramCache]: Analyzing trace with hash -72110105, now seen corresponding path program 1 times [2021-11-21 01:50:31,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:50:31,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242782621] [2021-11-21 01:50:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:31,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:50:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:31,848 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-21 01:50:31,848 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:50:31,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242782621] [2021-11-21 01:50:31,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242782621] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:50:31,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790968702] [2021-11-21 01:50:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:50:31,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:50:31,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:50:31,850 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:50:31,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29863e55-de76-4f84-8d24-f5092b0925fb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:50:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:50:31,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:50:31,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:50:32,329 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-21 01:50:32,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:50:32,611 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 110 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-11-21 01:50:32,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790968702] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:50:32,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1961615738] [2021-11-21 01:50:32,622 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2021-11-21 01:50:32,622 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:50:32,623 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:50:32,623 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:50:32,624 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs