./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.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_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/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_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/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_674324c6-37e3-4240-bd1f-70f9c51e79d2/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 5977619415d9c54d55bb3de80e610b570f29e97a95a856bc3f620bebee04c8a4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/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 04:58:32,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:58:32,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:58:32,048 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:58:32,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:58:32,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:58:32,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:58:32,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:58:32,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:58:32,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:58:32,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:58:32,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:58:32,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:58:32,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:58:32,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:58:32,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:58:32,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:58:32,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:58:32,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:58:32,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:58:32,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:58:32,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:58:32,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:58:32,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:58:32,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:58:32,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:58:32,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:58:32,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:58:32,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:58:32,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:58:32,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:58:32,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:58:32,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:58:32,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:58:32,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:58:32,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:58:32,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:58:32,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:58:32,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:58:32,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:58:32,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:58:32,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-29 04:58:32,154 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:58:32,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:58:32,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:58:32,156 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:58:32,156 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:58:32,157 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:58:32,157 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:58:32,157 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:58:32,158 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:58:32,158 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:58:32,158 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:58:32,159 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:58:32,159 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:58:32,159 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:58:32,160 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:58:32,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:58:32,161 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:58:32,161 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:58:32,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:58:32,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:58:32,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:58:32,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:58:32,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:58:32,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:58:32,163 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 04:58:32,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:58:32,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:58:32,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:58:32,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:58:32,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:58:32,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:58:32,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:58:32,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:58:32,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:58:32,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:58:32,167 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:58:32,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:58:32,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:58:32,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:58:32,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:58:32,168 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_674324c6-37e3-4240-bd1f-70f9c51e79d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5977619415d9c54d55bb3de80e610b570f29e97a95a856bc3f620bebee04c8a4 [2021-10-29 04:58:32,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:58:32,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:58:32,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:58:32,553 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:58:32,555 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:58:32,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-10-29 04:58:32,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/data/2fc1c5f39/ae53979b4c5e40c48c5ceaf5ab0120e8/FLAG0fc66182d [2021-10-29 04:58:33,215 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:58:33,216 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-10-29 04:58:33,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/data/2fc1c5f39/ae53979b4c5e40c48c5ceaf5ab0120e8/FLAG0fc66182d [2021-10-29 04:58:33,559 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/data/2fc1c5f39/ae53979b4c5e40c48c5ceaf5ab0120e8 [2021-10-29 04:58:33,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:58:33,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:58:33,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:58:33,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:58:33,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:58:33,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c038a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:33, skipping insertion in model container [2021-10-29 04:58:33,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:58:33" (1/1) ... [2021-10-29 04:58:33,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:58:33,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:58:33,850 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_674324c6-37e3-4240-bd1f-70f9c51e79d2/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-10-29 04:58:33,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:58:33,930 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:58:33,944 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_674324c6-37e3-4240-bd1f-70f9c51e79d2/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c[425,438] [2021-10-29 04:58:33,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:58:34,012 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:58:34,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34 WrapperNode [2021-10-29 04:58:34,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:58:34,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:58:34,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:58:34,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:58:34,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (1/1) ... [2021-10-29 04:58:34,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (1/1) ... [2021-10-29 04:58:34,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:58:34,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:58:34,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:58:34,093 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:58:34,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (1/1) ... [2021-10-29 04:58:34,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (1/1) ... [2021-10-29 04:58:34,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (1/1) ... [2021-10-29 04:58:34,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (1/1) ... [2021-10-29 04:58:34,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (1/1) ... [2021-10-29 04:58:34,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (1/1) ... [2021-10-29 04:58:34,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (1/1) ... [2021-10-29 04:58:34,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:58:34,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:58:34,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:58:34,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:58:34,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (1/1) ... [2021-10-29 04:58:34,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:58:34,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:58:34,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:58:34,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:58:34,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:58:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:58:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:58:34,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:58:35,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:58:35,652 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-29 04:58:35,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:58:35 BoogieIcfgContainer [2021-10-29 04:58:35,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:58:35,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:58:35,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:58:35,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:58:35,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:58:33" (1/3) ... [2021-10-29 04:58:35,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11eada94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:58:35, skipping insertion in model container [2021-10-29 04:58:35,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:58:34" (2/3) ... [2021-10-29 04:58:35,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11eada94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:58:35, skipping insertion in model container [2021-10-29 04:58:35,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:58:35" (3/3) ... [2021-10-29 04:58:35,677 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2021-10-29 04:58:35,685 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:58:35,685 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-10-29 04:58:35,748 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:58:35,757 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 04:58:35,757 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-10-29 04:58:35,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 69 states have (on average 1.8405797101449275) internal successors, (127), 97 states have internal predecessors, (127), 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 04:58:35,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:58:35,788 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:35,788 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 04:58:35,789 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:35,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:35,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1237383565, now seen corresponding path program 1 times [2021-10-29 04:58:35,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:35,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291576183] [2021-10-29 04:58:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:35,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:36,060 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 04:58:36,061 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:36,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291576183] [2021-10-29 04:58:36,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291576183] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:36,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:36,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:58:36,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638515907] [2021-10-29 04:58:36,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:58:36,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:36,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:58:36,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:58:36,093 INFO L87 Difference]: Start difference. First operand has 98 states, 69 states have (on average 1.8405797101449275) internal successors, (127), 97 states have internal predecessors, (127), 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 04:58:36,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:36,140 INFO L93 Difference]: Finished difference Result 177 states and 229 transitions. [2021-10-29 04:58:36,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:58:36,143 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 04:58:36,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:36,157 INFO L225 Difference]: With dead ends: 177 [2021-10-29 04:58:36,159 INFO L226 Difference]: Without dead ends: 90 [2021-10-29 04:58:36,163 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 04:58:36,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-29 04:58:36,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-10-29 04:58:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.6875) internal successors, (108), 89 states have internal predecessors, (108), 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 04:58:36,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 108 transitions. [2021-10-29 04:58:36,232 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 108 transitions. Word has length 6 [2021-10-29 04:58:36,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:36,233 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 108 transitions. [2021-10-29 04:58:36,233 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 04:58:36,234 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 108 transitions. [2021-10-29 04:58:36,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:58:36,235 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:36,235 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 04:58:36,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:58:36,236 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:36,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:36,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1236051172, now seen corresponding path program 1 times [2021-10-29 04:58:36,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:36,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290970102] [2021-10-29 04:58:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:36,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:36,314 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 04:58:36,315 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:36,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290970102] [2021-10-29 04:58:36,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290970102] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:36,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:36,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 04:58:36,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70620865] [2021-10-29 04:58:36,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:58:36,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:36,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:58:36,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:58:36,321 INFO L87 Difference]: Start difference. First operand 90 states and 108 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 04:58:36,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:36,434 INFO L93 Difference]: Finished difference Result 177 states and 210 transitions. [2021-10-29 04:58:36,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:58:36,435 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 04:58:36,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:36,437 INFO L225 Difference]: With dead ends: 177 [2021-10-29 04:58:36,438 INFO L226 Difference]: Without dead ends: 103 [2021-10-29 04:58:36,439 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 04:58:36,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-29 04:58:36,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2021-10-29 04:58:36,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 76 states have (on average 1.5921052631578947) internal successors, (121), 101 states have internal predecessors, (121), 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 04:58:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2021-10-29 04:58:36,463 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 6 [2021-10-29 04:58:36,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:36,465 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2021-10-29 04:58:36,465 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 04:58:36,465 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2021-10-29 04:58:36,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:58:36,467 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:36,467 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:36,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:58:36,468 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:36,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:36,470 INFO L85 PathProgramCache]: Analyzing trace with hash 946482336, now seen corresponding path program 1 times [2021-10-29 04:58:36,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:36,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149255755] [2021-10-29 04:58:36,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:36,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:36,558 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 04:58:36,558 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:36,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149255755] [2021-10-29 04:58:36,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149255755] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:36,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:36,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:58:36,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536796482] [2021-10-29 04:58:36,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:58:36,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:36,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:58:36,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:58:36,563 INFO L87 Difference]: Start difference. First operand 102 states and 121 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 04:58:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:36,680 INFO L93 Difference]: Finished difference Result 139 states and 162 transitions. [2021-10-29 04:58:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:58:36,681 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 04:58:36,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:36,683 INFO L225 Difference]: With dead ends: 139 [2021-10-29 04:58:36,683 INFO L226 Difference]: Without dead ends: 132 [2021-10-29 04:58:36,684 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 04:58:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-29 04:58:36,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 103. [2021-10-29 04:58:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.5) internal successors, (123), 102 states have internal predecessors, (123), 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 04:58:36,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2021-10-29 04:58:36,698 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 8 [2021-10-29 04:58:36,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:36,699 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2021-10-29 04:58:36,699 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 04:58:36,699 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2021-10-29 04:58:36,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:58:36,701 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:36,701 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:36,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 04:58:36,702 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:36,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:36,703 INFO L85 PathProgramCache]: Analyzing trace with hash -723818522, now seen corresponding path program 1 times [2021-10-29 04:58:36,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:36,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064039527] [2021-10-29 04:58:36,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:36,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:36,743 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 04:58:36,743 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:36,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064039527] [2021-10-29 04:58:36,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064039527] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:36,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:36,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:58:36,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252573451] [2021-10-29 04:58:36,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:58:36,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:36,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:58:36,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:58:36,748 INFO L87 Difference]: Start difference. First operand 103 states and 123 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 04:58:36,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:36,825 INFO L93 Difference]: Finished difference Result 131 states and 151 transitions. [2021-10-29 04:58:36,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:58:36,826 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 04:58:36,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:36,829 INFO L225 Difference]: With dead ends: 131 [2021-10-29 04:58:36,830 INFO L226 Difference]: Without dead ends: 126 [2021-10-29 04:58:36,831 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 04:58:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-29 04:58:36,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 95. [2021-10-29 04:58:36,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 78 states have (on average 1.4743589743589745) internal successors, (115), 94 states have internal predecessors, (115), 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 04:58:36,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 115 transitions. [2021-10-29 04:58:36,863 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 115 transitions. Word has length 9 [2021-10-29 04:58:36,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:36,864 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 115 transitions. [2021-10-29 04:58:36,866 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 04:58:36,866 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 115 transitions. [2021-10-29 04:58:36,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:58:36,868 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:36,869 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:36,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 04:58:36,869 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:36,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:36,870 INFO L85 PathProgramCache]: Analyzing trace with hash -609635025, now seen corresponding path program 1 times [2021-10-29 04:58:36,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:36,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998260805] [2021-10-29 04:58:36,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:36,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:37,127 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 04:58:37,128 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:37,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998260805] [2021-10-29 04:58:37,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998260805] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:37,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:37,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 04:58:37,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780611808] [2021-10-29 04:58:37,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:58:37,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:37,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:58:37,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:58:37,133 INFO L87 Difference]: Start difference. First operand 95 states and 115 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 04:58:37,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:37,238 INFO L93 Difference]: Finished difference Result 166 states and 192 transitions. [2021-10-29 04:58:37,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:58:37,240 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 04:58:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:37,242 INFO L225 Difference]: With dead ends: 166 [2021-10-29 04:58:37,242 INFO L226 Difference]: Without dead ends: 140 [2021-10-29 04:58:37,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:58:37,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-29 04:58:37,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 95. [2021-10-29 04:58:37,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 78 states have (on average 1.4487179487179487) internal successors, (113), 94 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:58:37,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 113 transitions. [2021-10-29 04:58:37,262 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 113 transitions. Word has length 10 [2021-10-29 04:58:37,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:37,263 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 113 transitions. [2021-10-29 04:58:37,264 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 04:58:37,264 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 113 transitions. [2021-10-29 04:58:37,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:58:37,267 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:37,267 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:37,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 04:58:37,268 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:37,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:37,269 INFO L85 PathProgramCache]: Analyzing trace with hash -618399406, now seen corresponding path program 1 times [2021-10-29 04:58:37,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:37,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192708467] [2021-10-29 04:58:37,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:37,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:37,376 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 04:58:37,377 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:37,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192708467] [2021-10-29 04:58:37,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192708467] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:37,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:37,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:58:37,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001511403] [2021-10-29 04:58:37,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:58:37,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:37,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:58:37,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:58:37,380 INFO L87 Difference]: Start difference. First operand 95 states and 113 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 04:58:37,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:37,492 INFO L93 Difference]: Finished difference Result 129 states and 150 transitions. [2021-10-29 04:58:37,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:58:37,493 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 04:58:37,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:37,495 INFO L225 Difference]: With dead ends: 129 [2021-10-29 04:58:37,495 INFO L226 Difference]: Without dead ends: 127 [2021-10-29 04:58:37,497 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 04:58:37,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-29 04:58:37,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 98. [2021-10-29 04:58:37,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 82 states have (on average 1.4268292682926829) internal successors, (117), 97 states have internal predecessors, (117), 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 04:58:37,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2021-10-29 04:58:37,520 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 10 [2021-10-29 04:58:37,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:37,520 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2021-10-29 04:58:37,521 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 04:58:37,521 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2021-10-29 04:58:37,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:58:37,526 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:37,527 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:37,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 04:58:37,528 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:37,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:37,528 INFO L85 PathProgramCache]: Analyzing trace with hash -76089496, now seen corresponding path program 1 times [2021-10-29 04:58:37,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:37,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398108117] [2021-10-29 04:58:37,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:37,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:37,604 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 04:58:37,604 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:37,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398108117] [2021-10-29 04:58:37,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398108117] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:37,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:37,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:58:37,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70893719] [2021-10-29 04:58:37,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:58:37,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:37,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:58:37,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:58:37,608 INFO L87 Difference]: Start difference. First operand 98 states and 117 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 04:58:37,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:37,712 INFO L93 Difference]: Finished difference Result 130 states and 150 transitions. [2021-10-29 04:58:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:58:37,713 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 04:58:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:37,714 INFO L225 Difference]: With dead ends: 130 [2021-10-29 04:58:37,714 INFO L226 Difference]: Without dead ends: 128 [2021-10-29 04:58:37,715 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 04:58:37,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-29 04:58:37,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 100. [2021-10-29 04:58:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 85 states have (on average 1.4) internal successors, (119), 99 states have internal predecessors, (119), 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 04:58:37,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2021-10-29 04:58:37,731 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 119 transitions. Word has length 10 [2021-10-29 04:58:37,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:37,731 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 119 transitions. [2021-10-29 04:58:37,732 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 04:58:37,732 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2021-10-29 04:58:37,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:58:37,735 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:37,735 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:37,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 04:58:37,736 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:37,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:37,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1158204508, now seen corresponding path program 1 times [2021-10-29 04:58:37,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:37,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838708461] [2021-10-29 04:58:37,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:37,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:37,801 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 04:58:37,801 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:37,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838708461] [2021-10-29 04:58:37,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838708461] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:37,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:37,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:58:37,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768929120] [2021-10-29 04:58:37,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:58:37,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:37,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:58:37,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:58:37,804 INFO L87 Difference]: Start difference. First operand 100 states and 119 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 04:58:37,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:37,896 INFO L93 Difference]: Finished difference Result 213 states and 246 transitions. [2021-10-29 04:58:37,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:58:37,897 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 04:58:37,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:37,899 INFO L225 Difference]: With dead ends: 213 [2021-10-29 04:58:37,899 INFO L226 Difference]: Without dead ends: 140 [2021-10-29 04:58:37,902 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 04:58:37,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-29 04:58:37,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 105. [2021-10-29 04:58:37,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 90 states have (on average 1.3888888888888888) internal successors, (125), 104 states have internal predecessors, (125), 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 04:58:37,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2021-10-29 04:58:37,911 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 11 [2021-10-29 04:58:37,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:37,912 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2021-10-29 04:58:37,912 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 04:58:37,912 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2021-10-29 04:58:37,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:58:37,914 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:37,914 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:37,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 04:58:37,915 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:37,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:37,915 INFO L85 PathProgramCache]: Analyzing trace with hash -688887558, now seen corresponding path program 1 times [2021-10-29 04:58:37,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:37,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128760530] [2021-10-29 04:58:37,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:37,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:37,984 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 04:58:37,984 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:37,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128760530] [2021-10-29 04:58:37,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128760530] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:37,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:37,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:58:37,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946476912] [2021-10-29 04:58:37,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:58:37,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:37,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:58:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:58:37,993 INFO L87 Difference]: Start difference. First operand 105 states and 125 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 04:58:38,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:38,079 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2021-10-29 04:58:38,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:58:38,081 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 04:58:38,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:38,083 INFO L225 Difference]: With dead ends: 140 [2021-10-29 04:58:38,084 INFO L226 Difference]: Without dead ends: 138 [2021-10-29 04:58:38,085 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 04:58:38,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-10-29 04:58:38,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 107. [2021-10-29 04:58:38,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 93 states have (on average 1.3655913978494623) internal successors, (127), 106 states have internal predecessors, (127), 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 04:58:38,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 127 transitions. [2021-10-29 04:58:38,094 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 127 transitions. Word has length 12 [2021-10-29 04:58:38,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:38,095 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 127 transitions. [2021-10-29 04:58:38,095 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 04:58:38,095 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 127 transitions. [2021-10-29 04:58:38,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:58:38,096 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:38,096 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:38,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 04:58:38,096 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:38,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:38,097 INFO L85 PathProgramCache]: Analyzing trace with hash -74050540, now seen corresponding path program 1 times [2021-10-29 04:58:38,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:38,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12060020] [2021-10-29 04:58:38,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:38,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:38,155 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 04:58:38,155 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:38,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12060020] [2021-10-29 04:58:38,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12060020] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 04:58:38,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955515302] [2021-10-29 04:58:38,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:38,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:58:38,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:58:38,160 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:58:38,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 04:58:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:38,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 04:58:38,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:58:38,378 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 04:58:38,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:58:38,433 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 04:58:38,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955515302] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:38,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-29 04:58:38,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [2] total 7 [2021-10-29 04:58:38,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541232527] [2021-10-29 04:58:38,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:58:38,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:38,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:58:38,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:58:38,436 INFO L87 Difference]: Start difference. First operand 107 states and 127 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 04:58:38,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:38,552 INFO L93 Difference]: Finished difference Result 164 states and 186 transitions. [2021-10-29 04:58:38,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:58:38,553 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 04:58:38,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:38,554 INFO L225 Difference]: With dead ends: 164 [2021-10-29 04:58:38,555 INFO L226 Difference]: Without dead ends: 161 [2021-10-29 04:58:38,555 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 04:58:38,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-10-29 04:58:38,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 94. [2021-10-29 04:58:38,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 93 states have internal predecessors, (112), 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 04:58:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2021-10-29 04:58:38,565 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 12 [2021-10-29 04:58:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:38,565 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2021-10-29 04:58:38,565 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 04:58:38,566 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2021-10-29 04:58:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 04:58:38,566 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:38,567 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:38,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-29 04:58:38,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-29 04:58:38,787 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:38,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:38,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1480927317, now seen corresponding path program 1 times [2021-10-29 04:58:38,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:38,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561358280] [2021-10-29 04:58:38,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:38,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:38,818 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 04:58:38,818 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:38,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561358280] [2021-10-29 04:58:38,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561358280] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:38,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:38,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 04:58:38,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213947101] [2021-10-29 04:58:38,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:58:38,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:38,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:58:38,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:58:38,821 INFO L87 Difference]: Start difference. First operand 94 states and 112 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 04:58:38,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:38,906 INFO L93 Difference]: Finished difference Result 152 states and 171 transitions. [2021-10-29 04:58:38,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:58:38,906 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 04:58:38,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:38,908 INFO L225 Difference]: With dead ends: 152 [2021-10-29 04:58:38,908 INFO L226 Difference]: Without dead ends: 149 [2021-10-29 04:58:38,908 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 04:58:38,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-10-29 04:58:38,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 82. [2021-10-29 04:58:38,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 74 states have (on average 1.3513513513513513) internal successors, (100), 81 states have internal predecessors, (100), 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 04:58:38,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2021-10-29 04:58:38,918 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 13 [2021-10-29 04:58:38,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:38,918 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2021-10-29 04:58:38,918 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 04:58:38,918 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2021-10-29 04:58:38,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 04:58:38,919 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:38,919 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:38,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-29 04:58:38,920 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:38,920 INFO L85 PathProgramCache]: Analyzing trace with hash -588831840, now seen corresponding path program 1 times [2021-10-29 04:58:38,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:38,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296343431] [2021-10-29 04:58:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:38,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:39,055 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 04:58:39,056 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:39,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296343431] [2021-10-29 04:58:39,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296343431] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:39,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:39,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 04:58:39,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808320715] [2021-10-29 04:58:39,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:58:39,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:39,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:58:39,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:58:39,058 INFO L87 Difference]: Start difference. First operand 82 states and 100 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 04:58:39,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:39,146 INFO L93 Difference]: Finished difference Result 123 states and 145 transitions. [2021-10-29 04:58:39,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:58:39,147 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 04:58:39,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:39,148 INFO L225 Difference]: With dead ends: 123 [2021-10-29 04:58:39,149 INFO L226 Difference]: Without dead ends: 122 [2021-10-29 04:58:39,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:58:39,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-29 04:58:39,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 102. [2021-10-29 04:58:39,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 101 states have internal predecessors, (124), 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 04:58:39,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 124 transitions. [2021-10-29 04:58:39,160 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 124 transitions. Word has length 14 [2021-10-29 04:58:39,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:39,160 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 124 transitions. [2021-10-29 04:58:39,161 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 04:58:39,161 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 124 transitions. [2021-10-29 04:58:39,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 04:58:39,161 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:39,162 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:39,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-29 04:58:39,162 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:39,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:39,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1068294466, now seen corresponding path program 1 times [2021-10-29 04:58:39,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:39,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950799760] [2021-10-29 04:58:39,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:39,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:39,491 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 04:58:39,491 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:39,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950799760] [2021-10-29 04:58:39,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950799760] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:39,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:39,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 04:58:39,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957426984] [2021-10-29 04:58:39,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:58:39,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:39,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:58:39,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:58:39,494 INFO L87 Difference]: Start difference. First operand 102 states and 124 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 04:58:39,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:39,637 INFO L93 Difference]: Finished difference Result 145 states and 167 transitions. [2021-10-29 04:58:39,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:58:39,639 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 04:58:39,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:39,643 INFO L225 Difference]: With dead ends: 145 [2021-10-29 04:58:39,644 INFO L226 Difference]: Without dead ends: 144 [2021-10-29 04:58:39,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:58:39,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-29 04:58:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 108. [2021-10-29 04:58:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 100 states have (on average 1.3) 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 04:58:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 130 transitions. [2021-10-29 04:58:39,659 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 130 transitions. Word has length 16 [2021-10-29 04:58:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:39,661 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 130 transitions. [2021-10-29 04:58:39,661 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 04:58:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 130 transitions. [2021-10-29 04:58:39,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 04:58:39,662 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:39,663 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:58:39,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-29 04:58:39,663 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:39,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:39,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1242603005, now seen corresponding path program 1 times [2021-10-29 04:58:39,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:39,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000409648] [2021-10-29 04:58:39,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:39,665 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:39,851 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 04:58:39,851 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:39,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000409648] [2021-10-29 04:58:39,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000409648] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:39,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:39,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 04:58:39,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67268219] [2021-10-29 04:58:39,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:58:39,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:39,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:58:39,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:58:39,855 INFO L87 Difference]: Start difference. First operand 108 states and 130 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 04:58:39,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:39,930 INFO L93 Difference]: Finished difference Result 144 states and 166 transitions. [2021-10-29 04:58:39,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:58:39,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2021-10-29 04:58:39,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:39,933 INFO L225 Difference]: With dead ends: 144 [2021-10-29 04:58:39,933 INFO L226 Difference]: Without dead ends: 122 [2021-10-29 04:58:39,934 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:58:39,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-29 04:58:39,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 102. [2021-10-29 04:58:39,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 94 states have (on average 1.3085106382978724) internal successors, (123), 101 states have internal predecessors, (123), 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 04:58:39,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 123 transitions. [2021-10-29 04:58:39,946 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 123 transitions. Word has length 17 [2021-10-29 04:58:39,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:39,946 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 123 transitions. [2021-10-29 04:58:39,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 04:58:39,947 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 123 transitions. [2021-10-29 04:58:39,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:58:39,947 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:39,947 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 04:58:39,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-29 04:58:39,948 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:39,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:39,949 INFO L85 PathProgramCache]: Analyzing trace with hash 875166188, now seen corresponding path program 1 times [2021-10-29 04:58:39,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:39,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613339204] [2021-10-29 04:58:39,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:39,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:40,196 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 04:58:40,196 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:40,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613339204] [2021-10-29 04:58:40,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613339204] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:40,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:40,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-29 04:58:40,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784318586] [2021-10-29 04:58:40,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:58:40,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:40,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:58:40,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:58:40,204 INFO L87 Difference]: Start difference. First operand 102 states and 123 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 04:58:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:40,289 INFO L93 Difference]: Finished difference Result 197 states and 231 transitions. [2021-10-29 04:58:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:58:40,289 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 04:58:40,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:40,291 INFO L225 Difference]: With dead ends: 197 [2021-10-29 04:58:40,291 INFO L226 Difference]: Without dead ends: 158 [2021-10-29 04:58:40,294 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:58:40,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-29 04:58:40,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 110. [2021-10-29 04:58:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 102 states have (on average 1.303921568627451) internal successors, (133), 109 states have internal predecessors, (133), 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 04:58:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2021-10-29 04:58:40,309 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 18 [2021-10-29 04:58:40,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:40,309 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2021-10-29 04:58:40,309 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 04:58:40,310 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2021-10-29 04:58:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:58:40,310 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:40,310 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 04:58:40,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-29 04:58:40,311 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:40,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:40,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1311443055, now seen corresponding path program 1 times [2021-10-29 04:58:40,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:40,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685191556] [2021-10-29 04:58:40,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:40,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:40,499 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 04:58:40,499 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:40,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685191556] [2021-10-29 04:58:40,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685191556] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:40,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:40,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 04:58:40,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948096025] [2021-10-29 04:58:40,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:58:40,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:40,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:58:40,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:58:40,502 INFO L87 Difference]: Start difference. First operand 110 states and 133 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 04:58:40,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:40,624 INFO L93 Difference]: Finished difference Result 198 states and 226 transitions. [2021-10-29 04:58:40,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:58:40,625 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 04:58:40,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:40,626 INFO L225 Difference]: With dead ends: 198 [2021-10-29 04:58:40,627 INFO L226 Difference]: Without dead ends: 197 [2021-10-29 04:58:40,627 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 04:58:40,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-29 04:58:40,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 118. [2021-10-29 04:58:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 110 states have (on average 1.309090909090909) internal successors, (144), 117 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 04:58:40,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 144 transitions. [2021-10-29 04:58:40,641 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 144 transitions. Word has length 18 [2021-10-29 04:58:40,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:40,641 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 144 transitions. [2021-10-29 04:58:40,642 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 04:58:40,642 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 144 transitions. [2021-10-29 04:58:40,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:58:40,642 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:40,643 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 04:58:40,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-29 04:58:40,644 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:40,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:40,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1871348493, now seen corresponding path program 1 times [2021-10-29 04:58:40,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:40,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085265883] [2021-10-29 04:58:40,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:40,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:40,844 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 04:58:40,844 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:40,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085265883] [2021-10-29 04:58:40,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085265883] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:40,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:40,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 04:58:40,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247014671] [2021-10-29 04:58:40,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:58:40,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:40,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:58:40,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:58:40,847 INFO L87 Difference]: Start difference. First operand 118 states and 144 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 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 04:58:40,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:40,977 INFO L93 Difference]: Finished difference Result 197 states and 224 transitions. [2021-10-29 04:58:40,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:58:40,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 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 04:58:40,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:40,979 INFO L225 Difference]: With dead ends: 197 [2021-10-29 04:58:40,979 INFO L226 Difference]: Without dead ends: 196 [2021-10-29 04:58:40,980 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:58:40,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-29 04:58:40,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 124. [2021-10-29 04:58:40,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 116 states have (on average 1.293103448275862) internal successors, (150), 123 states have internal predecessors, (150), 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 04:58:40,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 150 transitions. [2021-10-29 04:58:40,995 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 150 transitions. Word has length 20 [2021-10-29 04:58:40,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:40,998 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 150 transitions. [2021-10-29 04:58:40,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 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 04:58:40,998 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 150 transitions. [2021-10-29 04:58:40,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 04:58:40,999 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:40,999 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 04:58:40,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-29 04:58:41,000 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:41,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:41,001 INFO L85 PathProgramCache]: Analyzing trace with hash 448962139, now seen corresponding path program 1 times [2021-10-29 04:58:41,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:41,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339940617] [2021-10-29 04:58:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:41,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:41,219 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 04:58:41,219 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:41,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339940617] [2021-10-29 04:58:41,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339940617] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:41,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:41,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 04:58:41,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738167952] [2021-10-29 04:58:41,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 04:58:41,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:41,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 04:58:41,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:58:41,224 INFO L87 Difference]: Start difference. First operand 124 states and 150 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 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 04:58:41,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:41,372 INFO L93 Difference]: Finished difference Result 222 states and 258 transitions. [2021-10-29 04:58:41,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:58:41,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 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 04:58:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:41,374 INFO L225 Difference]: With dead ends: 222 [2021-10-29 04:58:41,375 INFO L226 Difference]: Without dead ends: 221 [2021-10-29 04:58:41,375 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:58:41,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-10-29 04:58:41,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 140. [2021-10-29 04:58:41,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 132 states have (on average 1.2954545454545454) internal successors, (171), 139 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 04:58:41,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 171 transitions. [2021-10-29 04:58:41,393 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 171 transitions. Word has length 20 [2021-10-29 04:58:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:41,393 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 171 transitions. [2021-10-29 04:58:41,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 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 04:58:41,394 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 171 transitions. [2021-10-29 04:58:41,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 04:58:41,395 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:41,395 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 04:58:41,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-29 04:58:41,396 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:41,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:41,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2117745778, now seen corresponding path program 1 times [2021-10-29 04:58:41,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:41,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434860054] [2021-10-29 04:58:41,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:41,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:41,876 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 04:58:41,876 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:41,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434860054] [2021-10-29 04:58:41,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434860054] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:41,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:41,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-29 04:58:41,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937011119] [2021-10-29 04:58:41,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-29 04:58:41,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:41,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 04:58:41,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-29 04:58:41,878 INFO L87 Difference]: Start difference. First operand 140 states and 171 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 12 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 04:58:42,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:42,767 INFO L93 Difference]: Finished difference Result 281 states and 312 transitions. [2021-10-29 04:58:42,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-29 04:58:42,767 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 12 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 04:58:42,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:42,770 INFO L225 Difference]: With dead ends: 281 [2021-10-29 04:58:42,770 INFO L226 Difference]: Without dead ends: 278 [2021-10-29 04:58:42,771 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=155, Invalid=495, Unknown=0, NotChecked=0, Total=650 [2021-10-29 04:58:42,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-29 04:58:42,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 162. [2021-10-29 04:58:42,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 154 states have (on average 1.2857142857142858) internal successors, (198), 161 states have internal predecessors, (198), 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 04:58:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 198 transitions. [2021-10-29 04:58:42,800 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 198 transitions. Word has length 21 [2021-10-29 04:58:42,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:42,801 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 198 transitions. [2021-10-29 04:58:42,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 12 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 04:58:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 198 transitions. [2021-10-29 04:58:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 04:58:42,805 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:42,805 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 04:58:42,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-29 04:58:42,806 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:42,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:42,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1225609994, now seen corresponding path program 1 times [2021-10-29 04:58:42,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:42,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563173503] [2021-10-29 04:58:42,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:42,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:58:43,250 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 04:58:43,251 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:58:43,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563173503] [2021-10-29 04:58:43,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563173503] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:58:43,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:58:43,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-29 04:58:43,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45733365] [2021-10-29 04:58:43,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 04:58:43,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:58:43,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 04:58:43,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-29 04:58:43,253 INFO L87 Difference]: Start difference. First operand 162 states and 198 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 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 04:58:43,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:58:43,783 INFO L93 Difference]: Finished difference Result 235 states and 275 transitions. [2021-10-29 04:58:43,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 04:58:43,784 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 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 04:58:43,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:58:43,786 INFO L225 Difference]: With dead ends: 235 [2021-10-29 04:58:43,786 INFO L226 Difference]: Without dead ends: 229 [2021-10-29 04:58:43,786 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2021-10-29 04:58:43,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-10-29 04:58:43,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 168. [2021-10-29 04:58:43,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 161 states have (on average 1.2732919254658386) internal successors, (205), 167 states have internal predecessors, (205), 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 04:58:43,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 205 transitions. [2021-10-29 04:58:43,809 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 205 transitions. Word has length 22 [2021-10-29 04:58:43,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:58:43,810 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 205 transitions. [2021-10-29 04:58:43,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 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 04:58:43,810 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 205 transitions. [2021-10-29 04:58:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 04:58:43,811 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:58:43,811 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 04:58:43,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-29 04:58:43,812 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-10-29 04:58:43,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:58:43,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1966763357, now seen corresponding path program 1 times [2021-10-29 04:58:43,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:58:43,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224467057] [2021-10-29 04:58:43,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:58:43,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:58:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:58:43,842 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:58:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:58:43,913 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:58:43,913 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:58:43,915 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,917 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,918 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,919 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,920 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,921 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,922 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,923 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,924 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,925 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-29 04:58:43,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-29 04:58:43,929 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] [2021-10-29 04:58:43,935 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:58:44,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:58:44 BoogieIcfgContainer [2021-10-29 04:58:44,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:58:44,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:58:44,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:58:44,018 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:58:44,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:58:35" (3/4) ... [2021-10-29 04:58:44,022 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 04:58:44,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:58:44,025 INFO L168 Benchmark]: Toolchain (without parser) took 10458.00 ms. Allocated memory was 96.5 MB in the beginning and 146.8 MB in the end (delta: 50.3 MB). Free memory was 56.9 MB in the beginning and 82.6 MB in the end (delta: -25.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:44,025 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 74.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:58:44,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.06 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 56.7 MB in the beginning and 92.2 MB in the end (delta: -35.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:44,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.77 ms. Allocated memory is still 121.6 MB. Free memory was 92.2 MB in the beginning and 90.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:44,027 INFO L168 Benchmark]: Boogie Preprocessor took 48.85 ms. Allocated memory is still 121.6 MB. Free memory was 89.7 MB in the beginning and 87.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:44,028 INFO L168 Benchmark]: RCFGBuilder took 1514.00 ms. Allocated memory is still 121.6 MB. Free memory was 87.9 MB in the beginning and 46.0 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:58:44,029 INFO L168 Benchmark]: TraceAbstraction took 8355.08 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 45.7 MB in the beginning and 82.6 MB in the end (delta: -36.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:58:44,029 INFO L168 Benchmark]: Witness Printer took 5.29 ms. Allocated memory is still 146.8 MB. Free memory is still 82.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:58:44,032 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory is still 74.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 440.06 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 56.7 MB in the beginning and 92.2 MB in the end (delta: -35.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.77 ms. Allocated memory is still 121.6 MB. Free memory was 92.2 MB in the beginning and 90.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.85 ms. Allocated memory is still 121.6 MB. Free memory was 89.7 MB in the beginning and 87.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1514.00 ms. Allocated memory is still 121.6 MB. Free memory was 87.9 MB in the beginning and 46.0 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8355.08 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 45.7 MB in the beginning and 82.6 MB in the end (delta: -36.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.29 ms. Allocated memory is still 146.8 MB. Free memory is still 82.6 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_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] 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); [L244] 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); [L245] b = base2flt(mb, eb) [L247] COND FALSE !(a < zero) [L250] COND TRUE a > zero [L251] tmp = 1 [L255] sa = tmp [L257] COND FALSE !(b < zero) [L260] COND TRUE b > zero [L261] tmp___0 = 1 [L265] sb = tmp___0 [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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 98 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 21, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1760 SDtfs, 2329 SDslu, 4015 SDs, 0 SdLazy, 1099 SolverSat, 239 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=20, InterpolantAutomatonStates: 123, 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, 20 MinimizatonAttempts, 896 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 307 NumberOfCodeBlocks, 307 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 275 ConstructedInterpolants, 0 QuantifiedInterpolants, 1473 SizeOfPredicates, 0 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 22 InterpolantComputations, 21 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 04:58:44,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_674324c6-37e3-4240-bd1f-70f9c51e79d2/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...