./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG --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 1f6e3ea051ad39822c46ff9cb12f1fe0324fb4c12be74e4be841016f2db74b5c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:32:58,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:32:58,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:32:58,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:32:58,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:32:58,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:32:58,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:32:58,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:32:58,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:32:58,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:32:58,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:32:58,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:32:58,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:32:58,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:32:58,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:32:58,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:32:58,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:32:58,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:32:58,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:32:58,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:32:58,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:32:58,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:32:58,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:32:58,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:32:58,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:32:58,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:32:58,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:32:58,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:32:58,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:32:58,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:32:58,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:32:58,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:32:58,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:32:58,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:32:58,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:32:58,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:32:58,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:32:58,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:32:58,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:32:58,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:32:58,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:32:58,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-29 05:32:59,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:32:59,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:32:59,009 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:32:59,009 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:32:59,009 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:32:59,009 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:32:59,010 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:32:59,010 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:32:59,010 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:32:59,010 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:32:59,018 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:32:59,018 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:32:59,019 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:32:59,019 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:32:59,019 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:32:59,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:32:59,020 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:32:59,020 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:32:59,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:32:59,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:32:59,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:32:59,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:32:59,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:32:59,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:32:59,022 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 05:32:59,022 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:32:59,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:32:59,023 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:32:59,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:32:59,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:32:59,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:32:59,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:32:59,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:32:59,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:32:59,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:32:59,027 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:32:59,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:32:59,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:32:59,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:32:59,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:32:59,028 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_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f6e3ea051ad39822c46ff9cb12f1fe0324fb4c12be74e4be841016f2db74b5c [2021-10-29 05:32:59,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:32:59,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:32:59,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:32:59,341 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:32:59,342 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:32:59,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2021-10-29 05:32:59,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/data/b52898155/a8c7726a8740409187060df3839891f0/FLAG7e4b9dfa1 [2021-10-29 05:32:59,908 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:32:59,909 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2021-10-29 05:32:59,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/data/b52898155/a8c7726a8740409187060df3839891f0/FLAG7e4b9dfa1 [2021-10-29 05:33:00,260 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/data/b52898155/a8c7726a8740409187060df3839891f0 [2021-10-29 05:33:00,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:33:00,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:33:00,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:33:00,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:33:00,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:33:00,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38398ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00, skipping insertion in model container [2021-10-29 05:33:00,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:33:00,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:33:00,488 WARN L228 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_b5841b87-b695-4484-b2e2-88b01f9dee2d/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[425,438] [2021-10-29 05:33:00,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:33:00,547 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:33:00,561 WARN L228 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_b5841b87-b695-4484-b2e2-88b01f9dee2d/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[425,438] [2021-10-29 05:33:00,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:33:00,609 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:33:00,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00 WrapperNode [2021-10-29 05:33:00,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:33:00,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:33:00,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:33:00,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:33:00,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:33:00,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:33:00,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:33:00,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:33:00,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:33:00,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:33:00,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:33:00,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:33:00,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (1/1) ... [2021-10-29 05:33:00,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:33:00,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:33:00,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:33:00,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:33:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:33:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:33:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:33:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:33:01,700 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:33:01,700 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-10-29 05:33:01,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:33:01 BoogieIcfgContainer [2021-10-29 05:33:01,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:33:01,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:33:01,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:33:01,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:33:01,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:33:00" (1/3) ... [2021-10-29 05:33:01,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3775e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:33:01, skipping insertion in model container [2021-10-29 05:33:01,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:33:00" (2/3) ... [2021-10-29 05:33:01,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3775e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:33:01, skipping insertion in model container [2021-10-29 05:33:01,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:33:01" (3/3) ... [2021-10-29 05:33:01,713 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2021-10-29 05:33:01,719 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:33:01,719 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2021-10-29 05:33:01,772 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:33:01,778 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 [2021-10-29 05:33:01,778 INFO L340 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2021-10-29 05:33:01,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 81 states have (on average 1.8641975308641976) internal successors, (151), 119 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:01,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:33:01,800 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:01,801 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:33:01,802 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:01,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:01,808 INFO L85 PathProgramCache]: Analyzing trace with hash 120809197, now seen corresponding path program 1 times [2021-10-29 05:33:01,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:01,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880461755] [2021-10-29 05:33:01,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:01,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:01,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:01,980 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:01,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880461755] [2021-10-29 05:33:01,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880461755] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:01,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:01,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:33:01,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615535202] [2021-10-29 05:33:01,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:33:01,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:02,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:33:02,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:33:02,029 INFO L87 Difference]: Start difference. First operand has 120 states, 81 states have (on average 1.8641975308641976) internal successors, (151), 119 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:02,056 INFO L93 Difference]: Finished difference Result 219 states and 277 transitions. [2021-10-29 05:33:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:33:02,057 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-29 05:33:02,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:02,068 INFO L225 Difference]: With dead ends: 219 [2021-10-29 05:33:02,068 INFO L226 Difference]: Without dead ends: 114 [2021-10-29 05:33:02,071 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:33:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-29 05:33:02,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-10-29 05:33:02,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 80 states have (on average 1.7) internal successors, (136), 113 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 136 transitions. [2021-10-29 05:33:02,116 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 136 transitions. Word has length 6 [2021-10-29 05:33:02,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:02,117 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 136 transitions. [2021-10-29 05:33:02,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,118 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 136 transitions. [2021-10-29 05:33:02,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:33:02,118 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:02,119 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:33:02,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:33:02,119 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash 119514283, now seen corresponding path program 1 times [2021-10-29 05:33:02,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:02,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464458190] [2021-10-29 05:33:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:02,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:02,172 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:02,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464458190] [2021-10-29 05:33:02,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464458190] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:02,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:02,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 05:33:02,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981032828] [2021-10-29 05:33:02,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:33:02,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:02,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:33:02,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:33:02,177 INFO L87 Difference]: Start difference. First operand 114 states and 136 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:02,277 INFO L93 Difference]: Finished difference Result 225 states and 266 transitions. [2021-10-29 05:33:02,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:33:02,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-29 05:33:02,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:02,280 INFO L225 Difference]: With dead ends: 225 [2021-10-29 05:33:02,280 INFO L226 Difference]: Without dead ends: 127 [2021-10-29 05:33:02,281 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:33:02,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-29 05:33:02,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2021-10-29 05:33:02,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 92 states have (on average 1.6195652173913044) internal successors, (149), 125 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 149 transitions. [2021-10-29 05:33:02,295 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 149 transitions. Word has length 6 [2021-10-29 05:33:02,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:02,295 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 149 transitions. [2021-10-29 05:33:02,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,296 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 149 transitions. [2021-10-29 05:33:02,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:33:02,297 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:02,297 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:02,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:33:02,298 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:02,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:02,298 INFO L85 PathProgramCache]: Analyzing trace with hash 608448269, now seen corresponding path program 1 times [2021-10-29 05:33:02,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:02,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668493876] [2021-10-29 05:33:02,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:02,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:02,360 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:02,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668493876] [2021-10-29 05:33:02,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668493876] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:02,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:02,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:33:02,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219378277] [2021-10-29 05:33:02,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:33:02,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:02,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:33:02,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:33:02,364 INFO L87 Difference]: Start difference. First operand 126 states and 149 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:02,520 INFO L93 Difference]: Finished difference Result 187 states and 218 transitions. [2021-10-29 05:33:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:33:02,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 05:33:02,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:02,528 INFO L225 Difference]: With dead ends: 187 [2021-10-29 05:33:02,528 INFO L226 Difference]: Without dead ends: 180 [2021-10-29 05:33:02,529 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:33:02,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-29 05:33:02,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 127. [2021-10-29 05:33:02,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 98 states have (on average 1.5408163265306123) internal successors, (151), 126 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 151 transitions. [2021-10-29 05:33:02,553 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 151 transitions. Word has length 8 [2021-10-29 05:33:02,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:02,553 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 151 transitions. [2021-10-29 05:33:02,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,554 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 151 transitions. [2021-10-29 05:33:02,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:33:02,559 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:02,560 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:02,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:33:02,560 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:02,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:02,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1682027289, now seen corresponding path program 1 times [2021-10-29 05:33:02,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:02,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424450855] [2021-10-29 05:33:02,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:02,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:02,647 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:02,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424450855] [2021-10-29 05:33:02,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424450855] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:02,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:02,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:33:02,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528857539] [2021-10-29 05:33:02,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:33:02,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:02,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:33:02,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:33:02,650 INFO L87 Difference]: Start difference. First operand 127 states and 151 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:02,735 INFO L93 Difference]: Finished difference Result 179 states and 207 transitions. [2021-10-29 05:33:02,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:33:02,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 05:33:02,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:02,738 INFO L225 Difference]: With dead ends: 179 [2021-10-29 05:33:02,738 INFO L226 Difference]: Without dead ends: 174 [2021-10-29 05:33:02,742 INFO L786 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 [2021-10-29 05:33:02,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-10-29 05:33:02,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 119. [2021-10-29 05:33:02,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 94 states have (on average 1.5212765957446808) internal successors, (143), 118 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 143 transitions. [2021-10-29 05:33:02,768 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 143 transitions. Word has length 9 [2021-10-29 05:33:02,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:02,769 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 143 transitions. [2021-10-29 05:33:02,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:02,771 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 143 transitions. [2021-10-29 05:33:02,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:33:02,773 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:02,773 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:02,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 05:33:02,774 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:02,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:02,774 INFO L85 PathProgramCache]: Analyzing trace with hash -161805896, now seen corresponding path program 1 times [2021-10-29 05:33:02,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:02,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693721159] [2021-10-29 05:33:02,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:02,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:02,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:02,967 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:02,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693721159] [2021-10-29 05:33:02,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693721159] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:02,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:02,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:33:02,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124087209] [2021-10-29 05:33:02,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:33:02,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:02,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:33:02,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:33:02,976 INFO L87 Difference]: Start difference. First operand 119 states and 143 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:03,080 INFO L93 Difference]: Finished difference Result 242 states and 281 transitions. [2021-10-29 05:33:03,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:33:03,081 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:33:03,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:03,083 INFO L225 Difference]: With dead ends: 242 [2021-10-29 05:33:03,083 INFO L226 Difference]: Without dead ends: 190 [2021-10-29 05:33:03,087 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:33:03,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-29 05:33:03,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 153. [2021-10-29 05:33:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 128 states have (on average 1.5078125) internal successors, (193), 152 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 193 transitions. [2021-10-29 05:33:03,116 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 193 transitions. Word has length 10 [2021-10-29 05:33:03,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:03,116 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 193 transitions. [2021-10-29 05:33:03,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 193 transitions. [2021-10-29 05:33:03,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:33:03,118 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:03,118 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:03,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 05:33:03,118 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:03,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:03,119 INFO L85 PathProgramCache]: Analyzing trace with hash -168160186, now seen corresponding path program 1 times [2021-10-29 05:33:03,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:03,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592481571] [2021-10-29 05:33:03,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:03,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:03,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:03,173 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:03,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592481571] [2021-10-29 05:33:03,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592481571] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:03,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:03,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:33:03,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108370669] [2021-10-29 05:33:03,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:33:03,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:03,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:33:03,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:33:03,183 INFO L87 Difference]: Start difference. First operand 153 states and 193 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:03,279 INFO L93 Difference]: Finished difference Result 233 states and 292 transitions. [2021-10-29 05:33:03,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:33:03,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:33:03,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:03,282 INFO L225 Difference]: With dead ends: 233 [2021-10-29 05:33:03,282 INFO L226 Difference]: Without dead ends: 231 [2021-10-29 05:33:03,283 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:33:03,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-10-29 05:33:03,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 160. [2021-10-29 05:33:03,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 136 states have (on average 1.4779411764705883) internal successors, (201), 159 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 201 transitions. [2021-10-29 05:33:03,295 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 201 transitions. Word has length 10 [2021-10-29 05:33:03,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:03,295 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 201 transitions. [2021-10-29 05:33:03,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,296 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 201 transitions. [2021-10-29 05:33:03,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:33:03,301 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:03,301 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:03,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 05:33:03,301 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:03,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:03,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1490686613, now seen corresponding path program 1 times [2021-10-29 05:33:03,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:03,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253644540] [2021-10-29 05:33:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:03,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:03,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:03,356 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:03,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253644540] [2021-10-29 05:33:03,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253644540] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:03,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:03,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:33:03,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413901866] [2021-10-29 05:33:03,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:33:03,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:03,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:33:03,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:33:03,359 INFO L87 Difference]: Start difference. First operand 160 states and 201 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:03,438 INFO L93 Difference]: Finished difference Result 233 states and 287 transitions. [2021-10-29 05:33:03,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:33:03,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:33:03,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:03,440 INFO L225 Difference]: With dead ends: 233 [2021-10-29 05:33:03,441 INFO L226 Difference]: Without dead ends: 231 [2021-10-29 05:33:03,441 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:33:03,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-10-29 05:33:03,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 162. [2021-10-29 05:33:03,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 139 states have (on average 1.460431654676259) internal successors, (203), 161 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 203 transitions. [2021-10-29 05:33:03,454 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 203 transitions. Word has length 10 [2021-10-29 05:33:03,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:03,455 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 203 transitions. [2021-10-29 05:33:03,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,455 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 203 transitions. [2021-10-29 05:33:03,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:33:03,458 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:03,458 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:03,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 05:33:03,459 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:03,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:03,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1775136523, now seen corresponding path program 1 times [2021-10-29 05:33:03,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:03,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462092914] [2021-10-29 05:33:03,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:03,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:03,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:03,510 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:03,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462092914] [2021-10-29 05:33:03,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462092914] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:03,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:03,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:33:03,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089810179] [2021-10-29 05:33:03,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:33:03,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:03,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:33:03,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:33:03,513 INFO L87 Difference]: Start difference. First operand 162 states and 203 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-10-29 05:33:03,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:03,624 INFO L93 Difference]: Finished difference Result 377 states and 466 transitions. [2021-10-29 05:33:03,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:33:03,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 [2021-10-29 05:33:03,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:03,626 INFO L225 Difference]: With dead ends: 377 [2021-10-29 05:33:03,626 INFO L226 Difference]: Without dead ends: 242 [2021-10-29 05:33:03,628 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:33:03,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-29 05:33:03,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 167. [2021-10-29 05:33:03,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 144 states have (on average 1.4513888888888888) internal successors, (209), 166 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 209 transitions. [2021-10-29 05:33:03,639 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 209 transitions. Word has length 11 [2021-10-29 05:33:03,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:03,640 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 209 transitions. [2021-10-29 05:33:03,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2021-10-29 05:33:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 209 transitions. [2021-10-29 05:33:03,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:33:03,642 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:03,642 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:03,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 05:33:03,642 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:03,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:03,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1800694034, now seen corresponding path program 1 times [2021-10-29 05:33:03,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:03,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736169532] [2021-10-29 05:33:03,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:03,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:03,704 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:03,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736169532] [2021-10-29 05:33:03,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736169532] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:03,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:03,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:33:03,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508581595] [2021-10-29 05:33:03,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:33:03,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:03,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:33:03,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:33:03,713 INFO L87 Difference]: Start difference. First operand 167 states and 209 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:03,807 INFO L93 Difference]: Finished difference Result 249 states and 305 transitions. [2021-10-29 05:33:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:33:03,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 05:33:03,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:03,809 INFO L225 Difference]: With dead ends: 249 [2021-10-29 05:33:03,810 INFO L226 Difference]: Without dead ends: 247 [2021-10-29 05:33:03,810 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:33:03,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-29 05:33:03,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 172. [2021-10-29 05:33:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 150 states have (on average 1.42) internal successors, (213), 171 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 213 transitions. [2021-10-29 05:33:03,828 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 213 transitions. Word has length 12 [2021-10-29 05:33:03,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:03,828 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 213 transitions. [2021-10-29 05:33:03,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 213 transitions. [2021-10-29 05:33:03,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:33:03,831 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:03,832 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:03,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 05:33:03,832 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:03,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:03,833 INFO L85 PathProgramCache]: Analyzing trace with hash -813309285, now seen corresponding path program 1 times [2021-10-29 05:33:03,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:03,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963341771] [2021-10-29 05:33:03,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:03,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:03,895 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:03,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963341771] [2021-10-29 05:33:03,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963341771] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 05:33:03,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109421496] [2021-10-29 05:33:03,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:03,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:33:03,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:33:03,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:33:03,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:33:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:03,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:33:03,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:33:04,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:04,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:33:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:04,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109421496] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:04,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-29 05:33:04,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [2] total 7 [2021-10-29 05:33:04,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173631335] [2021-10-29 05:33:04,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:33:04,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:04,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:33:04,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:33:04,156 INFO L87 Difference]: Start difference. First operand 172 states and 213 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:04,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:04,261 INFO L93 Difference]: Finished difference Result 337 states and 405 transitions. [2021-10-29 05:33:04,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:33:04,262 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 05:33:04,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:04,264 INFO L225 Difference]: With dead ends: 337 [2021-10-29 05:33:04,265 INFO L226 Difference]: Without dead ends: 334 [2021-10-29 05:33:04,265 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:33:04,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-10-29 05:33:04,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 155. [2021-10-29 05:33:04,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 136 states have (on average 1.411764705882353) internal successors, (192), 154 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:04,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 192 transitions. [2021-10-29 05:33:04,278 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 192 transitions. Word has length 12 [2021-10-29 05:33:04,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:04,279 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 192 transitions. [2021-10-29 05:33:04,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:04,279 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 192 transitions. [2021-10-29 05:33:04,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:33:04,280 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:04,280 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:04,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:33:04,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-29 05:33:04,503 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:04,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:04,503 INFO L85 PathProgramCache]: Analyzing trace with hash 936530270, now seen corresponding path program 1 times [2021-10-29 05:33:04,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:04,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892838124] [2021-10-29 05:33:04,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:04,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:04,540 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:04,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892838124] [2021-10-29 05:33:04,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892838124] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:04,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:04,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:33:04,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560948231] [2021-10-29 05:33:04,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:33:04,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:04,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:33:04,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:33:04,542 INFO L87 Difference]: Start difference. First operand 155 states and 192 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:04,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:04,642 INFO L93 Difference]: Finished difference Result 298 states and 361 transitions. [2021-10-29 05:33:04,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:33:04,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-29 05:33:04,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:04,645 INFO L225 Difference]: With dead ends: 298 [2021-10-29 05:33:04,646 INFO L226 Difference]: Without dead ends: 295 [2021-10-29 05:33:04,646 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:33:04,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-10-29 05:33:04,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 140. [2021-10-29 05:33:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.4193548387096775) internal successors, (176), 139 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:04,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 176 transitions. [2021-10-29 05:33:04,660 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 176 transitions. Word has length 13 [2021-10-29 05:33:04,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:04,660 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 176 transitions. [2021-10-29 05:33:04,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:04,660 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 176 transitions. [2021-10-29 05:33:04,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 05:33:04,661 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:04,661 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:04,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-29 05:33:04,662 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:04,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:04,662 INFO L85 PathProgramCache]: Analyzing trace with hash 409591337, now seen corresponding path program 1 times [2021-10-29 05:33:04,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:04,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973075509] [2021-10-29 05:33:04,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:04,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:04,822 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:04,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973075509] [2021-10-29 05:33:04,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973075509] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:04,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:04,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:33:04,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264904951] [2021-10-29 05:33:04,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:33:04,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:04,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:33:04,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:33:04,824 INFO L87 Difference]: Start difference. First operand 140 states and 176 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:04,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:04,925 INFO L93 Difference]: Finished difference Result 173 states and 201 transitions. [2021-10-29 05:33:04,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:33:04,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 05:33:04,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:04,927 INFO L225 Difference]: With dead ends: 173 [2021-10-29 05:33:04,927 INFO L226 Difference]: Without dead ends: 172 [2021-10-29 05:33:04,927 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:33:04,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-29 05:33:04,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 140. [2021-10-29 05:33:04,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 139 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 175 transitions. [2021-10-29 05:33:04,938 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 175 transitions. Word has length 14 [2021-10-29 05:33:04,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:04,939 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 175 transitions. [2021-10-29 05:33:04,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:04,939 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 175 transitions. [2021-10-29 05:33:04,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 05:33:04,940 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:04,940 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:04,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-29 05:33:04,940 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:04,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:04,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1519707605, now seen corresponding path program 1 times [2021-10-29 05:33:04,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:04,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382908895] [2021-10-29 05:33:04,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:04,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:05,040 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:05,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382908895] [2021-10-29 05:33:05,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382908895] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:05,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:05,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:33:05,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705294181] [2021-10-29 05:33:05,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:33:05,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:05,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:33:05,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:33:05,043 INFO L87 Difference]: Start difference. First operand 140 states and 175 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:05,133 INFO L93 Difference]: Finished difference Result 175 states and 203 transitions. [2021-10-29 05:33:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:33:05,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-29 05:33:05,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:05,135 INFO L225 Difference]: With dead ends: 175 [2021-10-29 05:33:05,135 INFO L226 Difference]: Without dead ends: 134 [2021-10-29 05:33:05,136 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:33:05,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-29 05:33:05,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 108. [2021-10-29 05:33:05,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 92 states have (on average 1.4130434782608696) internal successors, (130), 107 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:05,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 130 transitions. [2021-10-29 05:33:05,145 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 130 transitions. Word has length 16 [2021-10-29 05:33:05,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:05,145 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 130 transitions. [2021-10-29 05:33:05,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:05,145 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 130 transitions. [2021-10-29 05:33:05,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 05:33:05,146 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:05,146 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:05,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-29 05:33:05,147 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:05,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:05,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2086688279, now seen corresponding path program 1 times [2021-10-29 05:33:05,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:05,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042143872] [2021-10-29 05:33:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:05,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:05,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:05,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:05,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042143872] [2021-10-29 05:33:05,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042143872] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:05,318 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:05,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:33:05,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455070646] [2021-10-29 05:33:05,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:33:05,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:05,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:33:05,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:33:05,321 INFO L87 Difference]: Start difference. First operand 108 states and 130 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:05,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:05,429 INFO L93 Difference]: Finished difference Result 133 states and 155 transitions. [2021-10-29 05:33:05,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:33:05,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-29 05:33:05,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:05,431 INFO L225 Difference]: With dead ends: 133 [2021-10-29 05:33:05,431 INFO L226 Difference]: Without dead ends: 132 [2021-10-29 05:33:05,432 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:33:05,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-29 05:33:05,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 112. [2021-10-29 05:33:05,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 96 states have (on average 1.3958333333333333) internal successors, (134), 111 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 134 transitions. [2021-10-29 05:33:05,442 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 134 transitions. Word has length 16 [2021-10-29 05:33:05,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:05,444 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 134 transitions. [2021-10-29 05:33:05,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 134 transitions. [2021-10-29 05:33:05,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:33:05,445 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:05,445 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:05,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-29 05:33:05,446 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:05,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:05,446 INFO L85 PathProgramCache]: Analyzing trace with hash -442279751, now seen corresponding path program 1 times [2021-10-29 05:33:05,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:05,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154925735] [2021-10-29 05:33:05,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:05,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:05,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:05,598 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:05,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154925735] [2021-10-29 05:33:05,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154925735] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:05,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:05,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-29 05:33:05,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482037722] [2021-10-29 05:33:05,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:33:05,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:05,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:33:05,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:33:05,606 INFO L87 Difference]: Start difference. First operand 112 states and 134 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:05,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:05,757 INFO L93 Difference]: Finished difference Result 298 states and 338 transitions. [2021-10-29 05:33:05,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:33:05,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-10-29 05:33:05,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:05,759 INFO L225 Difference]: With dead ends: 298 [2021-10-29 05:33:05,760 INFO L226 Difference]: Without dead ends: 273 [2021-10-29 05:33:05,762 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:33:05,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-10-29 05:33:05,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 120. [2021-10-29 05:33:05,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 104 states have (on average 1.3846153846153846) internal successors, (144), 119 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:05,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 144 transitions. [2021-10-29 05:33:05,775 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 144 transitions. Word has length 18 [2021-10-29 05:33:05,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:05,775 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 144 transitions. [2021-10-29 05:33:05,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:05,775 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 144 transitions. [2021-10-29 05:33:05,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:33:05,776 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:05,776 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:05,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-29 05:33:05,777 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:05,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:05,778 INFO L85 PathProgramCache]: Analyzing trace with hash 211784602, now seen corresponding path program 1 times [2021-10-29 05:33:05,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:05,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173931291] [2021-10-29 05:33:05,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:05,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:05,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:05,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173931291] [2021-10-29 05:33:05,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173931291] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:05,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:05,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:33:05,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698778487] [2021-10-29 05:33:05,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:33:05,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:05,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:33:05,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:33:05,920 INFO L87 Difference]: Start difference. First operand 120 states and 144 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:06,058 INFO L93 Difference]: Finished difference Result 272 states and 311 transitions. [2021-10-29 05:33:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:33:06,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-10-29 05:33:06,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:06,061 INFO L225 Difference]: With dead ends: 272 [2021-10-29 05:33:06,061 INFO L226 Difference]: Without dead ends: 271 [2021-10-29 05:33:06,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:33:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-10-29 05:33:06,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 132. [2021-10-29 05:33:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 131 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 159 transitions. [2021-10-29 05:33:06,074 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 159 transitions. Word has length 18 [2021-10-29 05:33:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:06,074 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 159 transitions. [2021-10-29 05:33:06,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,075 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 159 transitions. [2021-10-29 05:33:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 05:33:06,076 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:06,076 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:06,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-29 05:33:06,077 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:06,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:06,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1666421192, now seen corresponding path program 1 times [2021-10-29 05:33:06,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:06,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307915624] [2021-10-29 05:33:06,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:06,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:06,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:06,180 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:06,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307915624] [2021-10-29 05:33:06,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307915624] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:06,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:06,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:33:06,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002861250] [2021-10-29 05:33:06,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:33:06,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:06,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:33:06,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:33:06,184 INFO L87 Difference]: Start difference. First operand 132 states and 159 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:06,333 INFO L93 Difference]: Finished difference Result 295 states and 333 transitions. [2021-10-29 05:33:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:33:06,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-29 05:33:06,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:06,335 INFO L225 Difference]: With dead ends: 295 [2021-10-29 05:33:06,335 INFO L226 Difference]: Without dead ends: 270 [2021-10-29 05:33:06,336 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:33:06,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-29 05:33:06,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 138. [2021-10-29 05:33:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 122 states have (on average 1.3524590163934427) internal successors, (165), 137 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 165 transitions. [2021-10-29 05:33:06,351 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 165 transitions. Word has length 20 [2021-10-29 05:33:06,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:06,352 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 165 transitions. [2021-10-29 05:33:06,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,352 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 165 transitions. [2021-10-29 05:33:06,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 05:33:06,353 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:06,353 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:06,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-29 05:33:06,354 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:06,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:06,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1159866435, now seen corresponding path program 1 times [2021-10-29 05:33:06,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:06,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020047692] [2021-10-29 05:33:06,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:06,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:06,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:06,472 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:06,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020047692] [2021-10-29 05:33:06,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020047692] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:06,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:06,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:33:06,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192230939] [2021-10-29 05:33:06,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:33:06,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:06,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:33:06,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:33:06,476 INFO L87 Difference]: Start difference. First operand 138 states and 165 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:06,536 INFO L93 Difference]: Finished difference Result 159 states and 186 transitions. [2021-10-29 05:33:06,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:33:06,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-29 05:33:06,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:06,540 INFO L225 Difference]: With dead ends: 159 [2021-10-29 05:33:06,540 INFO L226 Difference]: Without dead ends: 134 [2021-10-29 05:33:06,541 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:33:06,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-29 05:33:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-10-29 05:33:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.353448275862069) internal successors, (157), 131 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 157 transitions. [2021-10-29 05:33:06,552 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 157 transitions. Word has length 20 [2021-10-29 05:33:06,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:06,552 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 157 transitions. [2021-10-29 05:33:06,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 157 transitions. [2021-10-29 05:33:06,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 05:33:06,554 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:06,554 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:06,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-29 05:33:06,554 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:06,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:06,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1813930788, now seen corresponding path program 1 times [2021-10-29 05:33:06,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:06,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685517501] [2021-10-29 05:33:06,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:06,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:06,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:06,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685517501] [2021-10-29 05:33:06,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685517501] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:06,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:06,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:33:06,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390349251] [2021-10-29 05:33:06,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:33:06,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:06,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:33:06,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:33:06,691 INFO L87 Difference]: Start difference. First operand 132 states and 157 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:06,799 INFO L93 Difference]: Finished difference Result 181 states and 210 transitions. [2021-10-29 05:33:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:33:06,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-29 05:33:06,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:06,801 INFO L225 Difference]: With dead ends: 181 [2021-10-29 05:33:06,801 INFO L226 Difference]: Without dead ends: 180 [2021-10-29 05:33:06,802 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:33:06,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-10-29 05:33:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 132. [2021-10-29 05:33:06,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.353448275862069) internal successors, (157), 131 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 157 transitions. [2021-10-29 05:33:06,814 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 157 transitions. Word has length 20 [2021-10-29 05:33:06,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:06,814 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 157 transitions. [2021-10-29 05:33:06,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:06,814 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 157 transitions. [2021-10-29 05:33:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:33:06,817 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:06,817 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:06,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-29 05:33:06,818 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:06,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash -31601502, now seen corresponding path program 1 times [2021-10-29 05:33:06,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:06,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980647459] [2021-10-29 05:33:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:06,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:07,133 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:07,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980647459] [2021-10-29 05:33:07,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980647459] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:07,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:07,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-29 05:33:07,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887349710] [2021-10-29 05:33:07,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:33:07,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:07,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:33:07,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:33:07,135 INFO L87 Difference]: Start difference. First operand 132 states and 157 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:08,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:08,227 INFO L93 Difference]: Finished difference Result 307 states and 338 transitions. [2021-10-29 05:33:08,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-29 05:33:08,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-29 05:33:08,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:08,229 INFO L225 Difference]: With dead ends: 307 [2021-10-29 05:33:08,229 INFO L226 Difference]: Without dead ends: 304 [2021-10-29 05:33:08,230 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2021-10-29 05:33:08,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-10-29 05:33:08,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 140. [2021-10-29 05:33:08,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 139 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:08,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2021-10-29 05:33:08,246 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 21 [2021-10-29 05:33:08,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:08,246 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2021-10-29 05:33:08,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:08,247 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2021-10-29 05:33:08,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:33:08,247 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:08,248 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:08,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-29 05:33:08,248 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:08,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:08,249 INFO L85 PathProgramCache]: Analyzing trace with hash -979646273, now seen corresponding path program 1 times [2021-10-29 05:33:08,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:08,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285604783] [2021-10-29 05:33:08,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:08,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:08,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:08,735 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:08,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285604783] [2021-10-29 05:33:08,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285604783] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:08,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:08,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-29 05:33:08,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130013113] [2021-10-29 05:33:08,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 05:33:08,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:08,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 05:33:08,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:33:08,748 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:09,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:09,416 INFO L93 Difference]: Finished difference Result 260 states and 301 transitions. [2021-10-29 05:33:09,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 05:33:09,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-29 05:33:09,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:09,419 INFO L225 Difference]: With dead ends: 260 [2021-10-29 05:33:09,419 INFO L226 Difference]: Without dead ends: 256 [2021-10-29 05:33:09,419 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-10-29 05:33:09,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-29 05:33:09,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 142. [2021-10-29 05:33:09,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 128 states have (on average 1.3359375) internal successors, (171), 141 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:09,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 171 transitions. [2021-10-29 05:33:09,437 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 171 transitions. Word has length 22 [2021-10-29 05:33:09,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:09,438 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 171 transitions. [2021-10-29 05:33:09,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:09,438 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 171 transitions. [2021-10-29 05:33:09,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:33:09,439 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:09,439 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:09,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-29 05:33:09,440 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:09,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:09,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1572276942, now seen corresponding path program 1 times [2021-10-29 05:33:09,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:09,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8837047] [2021-10-29 05:33:09,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:09,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:33:09,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:33:09,616 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:33:09,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8837047] [2021-10-29 05:33:09,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8837047] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:33:09,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:33:09,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-29 05:33:09,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742111658] [2021-10-29 05:33:09,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:33:09,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:33:09,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:33:09,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:33:09,618 INFO L87 Difference]: Start difference. First operand 142 states and 171 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:10,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:33:10,074 INFO L93 Difference]: Finished difference Result 276 states and 311 transitions. [2021-10-29 05:33:10,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-29 05:33:10,075 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-29 05:33:10,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:33:10,077 INFO L225 Difference]: With dead ends: 276 [2021-10-29 05:33:10,077 INFO L226 Difference]: Without dead ends: 275 [2021-10-29 05:33:10,079 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-10-29 05:33:10,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-10-29 05:33:10,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 148. [2021-10-29 05:33:10,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 134 states have (on average 1.328358208955224) internal successors, (178), 147 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:10,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 178 transitions. [2021-10-29 05:33:10,096 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 178 transitions. Word has length 22 [2021-10-29 05:33:10,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:33:10,097 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 178 transitions. [2021-10-29 05:33:10,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:33:10,098 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 178 transitions. [2021-10-29 05:33:10,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:33:10,099 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:33:10,099 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:10,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-29 05:33:10,099 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2021-10-29 05:33:10,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:33:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1577149754, now seen corresponding path program 1 times [2021-10-29 05:33:10,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:33:10,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011344571] [2021-10-29 05:33:10,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:33:10,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:33:10,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:33:10,124 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:33:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:33:10,189 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:33:10,189 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:33:10,190 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,194 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,195 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,195 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,197 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,197 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,197 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,198 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,198 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,198 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,198 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,199 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,199 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,199 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,199 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,200 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,201 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,202 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,202 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,202 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,202 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,203 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,203 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,203 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,204 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 05:33:10,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-29 05:33:10,211 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:33:10,216 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:33:10,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:33:10 BoogieIcfgContainer [2021-10-29 05:33:10,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:33:10,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:33:10,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:33:10,286 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:33:10,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:33:01" (3/4) ... [2021-10-29 05:33:10,290 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:33:10,290 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:33:10,292 INFO L168 Benchmark]: Toolchain (without parser) took 10026.04 ms. Allocated memory was 123.7 MB in the beginning and 199.2 MB in the end (delta: 75.5 MB). Free memory was 81.3 MB in the beginning and 62.7 MB in the end (delta: 18.6 MB). Peak memory consumption was 93.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:33:10,292 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 123.7 MB. Free memory is still 98.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:33:10,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.30 ms. Allocated memory is still 123.7 MB. Free memory was 81.1 MB in the beginning and 94.8 MB in the end (delta: -13.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:33:10,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.49 ms. Allocated memory is still 123.7 MB. Free memory was 94.8 MB in the beginning and 92.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:33:10,294 INFO L168 Benchmark]: Boogie Preprocessor took 38.42 ms. Allocated memory is still 123.7 MB. Free memory was 92.1 MB in the beginning and 90.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:33:10,294 INFO L168 Benchmark]: RCFGBuilder took 996.32 ms. Allocated memory is still 123.7 MB. Free memory was 90.5 MB in the beginning and 60.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:33:10,295 INFO L168 Benchmark]: TraceAbstraction took 8577.21 ms. Allocated memory was 123.7 MB in the beginning and 199.2 MB in the end (delta: 75.5 MB). Free memory was 59.7 MB in the beginning and 62.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 74.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:33:10,295 INFO L168 Benchmark]: Witness Printer took 4.28 ms. Allocated memory is still 199.2 MB. Free memory is still 62.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:33:10,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 123.7 MB. Free memory is still 98.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.30 ms. Allocated memory is still 123.7 MB. Free memory was 81.1 MB in the beginning and 94.8 MB in the end (delta: -13.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.49 ms. Allocated memory is still 123.7 MB. Free memory was 94.8 MB in the beginning and 92.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.42 ms. Allocated memory is still 123.7 MB. Free memory was 92.1 MB in the beginning and 90.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 996.32 ms. Allocated memory is still 123.7 MB. Free memory was 90.5 MB in the beginning and 60.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8577.21 ms. Allocated memory was 123.7 MB in the beginning and 199.2 MB in the end (delta: 75.5 MB). Free memory was 59.7 MB in the beginning and 62.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 74.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.28 ms. Allocated memory is still 199.2 MB. Free memory is still 62.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 102, overapproximation of bitwiseAnd at line 103. Possible FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add1 ; [L225] unsigned int r_add2 ; [L226] unsigned int zero ; [L227] int tmp ; [L228] int tmp___0 ; [L229] int __retres14 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L233] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L234] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L235] b = base2flt(mb, eb) [L76] unsigned int res ; [L77] unsigned int ma ; [L78] unsigned int mb ; [L79] unsigned int delta ; [L80] int ea ; [L81] int eb ; [L82] unsigned int tmp ; [L83] unsigned int __retres10 ; [L86] COND FALSE !(a < b) [L93] COND FALSE !(! b) [L100] ma = a & ((1U << 24U) - 1U) [L101] EXPR (int )(a >> 24U) - 128 [L101] ea = (int )(a >> 24U) - 128 [L102] ma = ma | (1U << 24U) [L103] mb = b & ((1U << 24U) - 1U) [L104] (int )(b >> 24U) - 128 - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 101]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 101]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 107]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 107]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 101]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 101]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 107]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 107]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 38 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 23, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2897 SDtfs, 3873 SDslu, 6489 SDs, 0 SdLazy, 2097 SolverSat, 289 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=172occurred in iteration=9, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 1727 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 1424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 24 InterpolantComputations, 23 PerfectInterpolantSequences, 4/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:33:10,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5841b87-b695-4484-b2e2-88b01f9dee2d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...