./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI --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 139ef67971e7ed714d59975d45ea043b5c6a1676 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/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 0.2.0-7b2dab5 [2021-10-11 02:28:54,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:28:54,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:28:54,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:28:54,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:28:54,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:28:54,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:28:54,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:28:54,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:28:54,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:28:54,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:28:54,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:28:54,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:28:54,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:28:54,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:28:54,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:28:54,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:28:54,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:28:54,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:28:54,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:28:54,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:28:54,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:28:54,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:28:54,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:28:54,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:28:54,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:28:54,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:28:54,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:28:54,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:28:54,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:28:54,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:28:54,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:28:54,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:28:54,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:28:54,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:28:54,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:28:54,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:28:54,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:28:54,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:28:54,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:28:54,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:28:54,911 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-11 02:28:54,953 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:28:54,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:28:54,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:28:54,955 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:28:54,955 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:28:54,956 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:28:54,956 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:28:54,956 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:28:54,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:28:54,956 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:28:54,957 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:28:54,958 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:28:54,958 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:28:54,958 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:28:54,958 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:28:54,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:28:54,959 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:28:54,959 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:28:54,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:28:54,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:28:54,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:28:54,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:28:54,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:28:54,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:28:54,961 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:28:54,961 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:28:54,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:28:54,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:28:54,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:28:54,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:28:54,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:28:54,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:54,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:28:54,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:28:54,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:28:54,965 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:28:54,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:28:54,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:28:54,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:28:54,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:28:54,966 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_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 139ef67971e7ed714d59975d45ea043b5c6a1676 [2021-10-11 02:28:55,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:28:55,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:28:55,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:28:55,267 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:28:55,268 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:28:55,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c [2021-10-11 02:28:55,330 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/data/8e498c926/a38b6896025c475c902b4ef70623dbce/FLAG14e352964 [2021-10-11 02:28:55,811 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:28:55,812 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c [2021-10-11 02:28:55,824 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/data/8e498c926/a38b6896025c475c902b4ef70623dbce/FLAG14e352964 [2021-10-11 02:28:56,154 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/data/8e498c926/a38b6896025c475c902b4ef70623dbce [2021-10-11 02:28:56,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:28:56,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:28:56,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:56,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:28:56,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:28:56,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c062aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56, skipping insertion in model container [2021-10-11 02:28:56,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:28:56,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:28:56,458 WARN L226 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_55c60c16-d892-42ab-bc75-84e5becc2ee4/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c[45007,45020] [2021-10-11 02:28:56,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:56,482 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:28:56,571 WARN L226 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_55c60c16-d892-42ab-bc75-84e5becc2ee4/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c[45007,45020] [2021-10-11 02:28:56,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:28:56,589 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:28:56,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56 WrapperNode [2021-10-11 02:28:56,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:28:56,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:56,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:28:56,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:28:56,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:28:56,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:28:56,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:28:56,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:28:56,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (1/1) ... [2021-10-11 02:28:56,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:28:56,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:28:56,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:28:56,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:28:56,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:28:56,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:28:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:28:56,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:28:56,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:28:56,978 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:28:57,605 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##93: assume !false; [2021-10-11 02:28:57,611 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##92: assume false; [2021-10-11 02:28:57,941 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:28:57,941 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-11 02:28:57,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:57 BoogieIcfgContainer [2021-10-11 02:28:57,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:28:57,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:28:57,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:28:57,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:28:57,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:56" (1/3) ... [2021-10-11 02:28:57,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eebb42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:57, skipping insertion in model container [2021-10-11 02:28:57,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:56" (2/3) ... [2021-10-11 02:28:57,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eebb42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:57, skipping insertion in model container [2021-10-11 02:28:57,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:57" (3/3) ... [2021-10-11 02:28:57,951 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a_alt.BV.c.cil.c [2021-10-11 02:28:57,965 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:28:57,968 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2021-10-11 02:28:57,979 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2021-10-11 02:28:58,021 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:28:58,021 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:28:58,021 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:28:58,021 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:28:58,021 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:28:58,021 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:28:58,022 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:28:58,022 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:28:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2021-10-11 02:28:58,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:28:58,048 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:58,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:58,049 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:28:58,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:58,054 INFO L82 PathProgramCache]: Analyzing trace with hash -45051764, now seen corresponding path program 1 times [2021-10-11 02:28:58,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:58,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148921501] [2021-10-11 02:28:58,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:58,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148921501] [2021-10-11 02:28:58,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:58,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:58,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385489474] [2021-10-11 02:28:58,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:58,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:58,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:58,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:58,301 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 3 states. [2021-10-11 02:28:58,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:58,559 INFO L93 Difference]: Finished difference Result 278 states and 447 transitions. [2021-10-11 02:28:58,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:58,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2021-10-11 02:28:58,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:58,580 INFO L225 Difference]: With dead ends: 278 [2021-10-11 02:28:58,581 INFO L226 Difference]: Without dead ends: 141 [2021-10-11 02:28:58,587 INFO L677 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 [2021-10-11 02:28:58,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-11 02:28:58,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-10-11 02:28:58,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2021-10-11 02:28:58,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 197 transitions. [2021-10-11 02:28:58,651 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 197 transitions. Word has length 11 [2021-10-11 02:28:58,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:58,651 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 197 transitions. [2021-10-11 02:28:58,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:58,652 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 197 transitions. [2021-10-11 02:28:58,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:28:58,653 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:58,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:58,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:28:58,653 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:28:58,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:58,656 INFO L82 PathProgramCache]: Analyzing trace with hash -811961133, now seen corresponding path program 1 times [2021-10-11 02:28:58,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:58,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469900150] [2021-10-11 02:28:58,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:58,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:58,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469900150] [2021-10-11 02:28:58,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:58,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:58,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57305832] [2021-10-11 02:28:58,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:58,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:58,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:58,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:58,766 INFO L87 Difference]: Start difference. First operand 141 states and 197 transitions. Second operand 3 states. [2021-10-11 02:28:58,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:58,931 INFO L93 Difference]: Finished difference Result 289 states and 403 transitions. [2021-10-11 02:28:58,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:58,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2021-10-11 02:28:58,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:58,933 INFO L225 Difference]: With dead ends: 289 [2021-10-11 02:28:58,934 INFO L226 Difference]: Without dead ends: 150 [2021-10-11 02:28:58,935 INFO L677 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 [2021-10-11 02:28:58,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-10-11 02:28:58,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 142. [2021-10-11 02:28:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-10-11 02:28:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 198 transitions. [2021-10-11 02:28:58,950 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 198 transitions. Word has length 13 [2021-10-11 02:28:58,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:58,951 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 198 transitions. [2021-10-11 02:28:58,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:58,951 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 198 transitions. [2021-10-11 02:28:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:28:58,952 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:58,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:58,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:28:58,952 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:28:58,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:58,953 INFO L82 PathProgramCache]: Analyzing trace with hash 99284275, now seen corresponding path program 1 times [2021-10-11 02:28:58,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:58,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871221626] [2021-10-11 02:28:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:59,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871221626] [2021-10-11 02:28:59,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:59,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:59,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104269009] [2021-10-11 02:28:59,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:59,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:59,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:59,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:59,002 INFO L87 Difference]: Start difference. First operand 142 states and 198 transitions. Second operand 3 states. [2021-10-11 02:28:59,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:59,159 INFO L93 Difference]: Finished difference Result 291 states and 405 transitions. [2021-10-11 02:28:59,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:59,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2021-10-11 02:28:59,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:59,161 INFO L225 Difference]: With dead ends: 291 [2021-10-11 02:28:59,162 INFO L226 Difference]: Without dead ends: 151 [2021-10-11 02:28:59,163 INFO L677 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 [2021-10-11 02:28:59,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-11 02:28:59,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 143. [2021-10-11 02:28:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2021-10-11 02:28:59,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 199 transitions. [2021-10-11 02:28:59,174 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 199 transitions. Word has length 14 [2021-10-11 02:28:59,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:59,174 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 199 transitions. [2021-10-11 02:28:59,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 199 transitions. [2021-10-11 02:28:59,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:28:59,175 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:59,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:59,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:28:59,175 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:28:59,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:59,176 INFO L82 PathProgramCache]: Analyzing trace with hash 2130750424, now seen corresponding path program 1 times [2021-10-11 02:28:59,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:59,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173009864] [2021-10-11 02:28:59,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:59,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173009864] [2021-10-11 02:28:59,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:59,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:59,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475990338] [2021-10-11 02:28:59,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:59,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:59,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:59,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:59,249 INFO L87 Difference]: Start difference. First operand 143 states and 199 transitions. Second operand 3 states. [2021-10-11 02:28:59,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:59,381 INFO L93 Difference]: Finished difference Result 293 states and 407 transitions. [2021-10-11 02:28:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:59,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2021-10-11 02:28:59,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:59,385 INFO L225 Difference]: With dead ends: 293 [2021-10-11 02:28:59,385 INFO L226 Difference]: Without dead ends: 152 [2021-10-11 02:28:59,387 INFO L677 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 [2021-10-11 02:28:59,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-11 02:28:59,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 144. [2021-10-11 02:28:59,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-10-11 02:28:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 200 transitions. [2021-10-11 02:28:59,414 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 200 transitions. Word has length 15 [2021-10-11 02:28:59,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:59,414 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 200 transitions. [2021-10-11 02:28:59,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:59,415 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 200 transitions. [2021-10-11 02:28:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:28:59,416 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:59,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:28:59,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:28:59,422 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:28:59,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:59,422 INFO L82 PathProgramCache]: Analyzing trace with hash 234353880, now seen corresponding path program 1 times [2021-10-11 02:28:59,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:59,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257421187] [2021-10-11 02:28:59,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:59,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:59,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257421187] [2021-10-11 02:28:59,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:59,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:59,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37157670] [2021-10-11 02:28:59,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:59,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:59,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:59,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:59,501 INFO L87 Difference]: Start difference. First operand 144 states and 200 transitions. Second operand 3 states. [2021-10-11 02:28:59,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:59,662 INFO L93 Difference]: Finished difference Result 295 states and 409 transitions. [2021-10-11 02:28:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:59,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2021-10-11 02:28:59,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:59,664 INFO L225 Difference]: With dead ends: 295 [2021-10-11 02:28:59,664 INFO L226 Difference]: Without dead ends: 153 [2021-10-11 02:28:59,665 INFO L677 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 [2021-10-11 02:28:59,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-11 02:28:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 145. [2021-10-11 02:28:59,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2021-10-11 02:28:59,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 201 transitions. [2021-10-11 02:28:59,673 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 201 transitions. Word has length 16 [2021-10-11 02:28:59,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:59,674 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 201 transitions. [2021-10-11 02:28:59,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:59,674 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 201 transitions. [2021-10-11 02:28:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:28:59,675 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:59,675 INFO L422 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, 1, 1, 1, 1] [2021-10-11 02:28:59,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:28:59,676 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:28:59,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:59,676 INFO L82 PathProgramCache]: Analyzing trace with hash -66310273, now seen corresponding path program 1 times [2021-10-11 02:28:59,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:59,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323679869] [2021-10-11 02:28:59,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:59,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:59,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323679869] [2021-10-11 02:28:59,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:59,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:59,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594351087] [2021-10-11 02:28:59,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:59,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:59,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:59,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:59,725 INFO L87 Difference]: Start difference. First operand 145 states and 201 transitions. Second operand 3 states. [2021-10-11 02:28:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:28:59,864 INFO L93 Difference]: Finished difference Result 325 states and 457 transitions. [2021-10-11 02:28:59,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:28:59,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-10-11 02:28:59,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:28:59,866 INFO L225 Difference]: With dead ends: 325 [2021-10-11 02:28:59,866 INFO L226 Difference]: Without dead ends: 182 [2021-10-11 02:28:59,867 INFO L677 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 [2021-10-11 02:28:59,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-11 02:28:59,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 168. [2021-10-11 02:28:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2021-10-11 02:28:59,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 237 transitions. [2021-10-11 02:28:59,876 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 237 transitions. Word has length 26 [2021-10-11 02:28:59,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:28:59,876 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 237 transitions. [2021-10-11 02:28:59,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:28:59,877 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 237 transitions. [2021-10-11 02:28:59,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 02:28:59,878 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:28:59,878 INFO L422 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, 1, 1, 1, 1, 1] [2021-10-11 02:28:59,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:28:59,879 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:28:59,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:28:59,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1333617343, now seen corresponding path program 1 times [2021-10-11 02:28:59,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:28:59,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954565735] [2021-10-11 02:28:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:28:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:28:59,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:28:59,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954565735] [2021-10-11 02:28:59,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:28:59,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:28:59,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988763677] [2021-10-11 02:28:59,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:28:59,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:28:59,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:28:59,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:28:59,922 INFO L87 Difference]: Start difference. First operand 168 states and 237 transitions. Second operand 3 states. [2021-10-11 02:29:00,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:00,059 INFO L93 Difference]: Finished difference Result 360 states and 516 transitions. [2021-10-11 02:29:00,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:00,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2021-10-11 02:29:00,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:00,061 INFO L225 Difference]: With dead ends: 360 [2021-10-11 02:29:00,061 INFO L226 Difference]: Without dead ends: 194 [2021-10-11 02:29:00,062 INFO L677 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 [2021-10-11 02:29:00,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-11 02:29:00,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 180. [2021-10-11 02:29:00,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2021-10-11 02:29:00,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 260 transitions. [2021-10-11 02:29:00,071 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 260 transitions. Word has length 27 [2021-10-11 02:29:00,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:00,072 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 260 transitions. [2021-10-11 02:29:00,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:00,072 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 260 transitions. [2021-10-11 02:29:00,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-11 02:29:00,074 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:00,075 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:00,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:29:00,075 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:29:00,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:00,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1379582817, now seen corresponding path program 1 times [2021-10-11 02:29:00,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:00,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704750172] [2021-10-11 02:29:00,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:00,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:00,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704750172] [2021-10-11 02:29:00,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:00,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:00,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700169312] [2021-10-11 02:29:00,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:00,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:00,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:00,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:00,142 INFO L87 Difference]: Start difference. First operand 180 states and 260 transitions. Second operand 3 states. [2021-10-11 02:29:00,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:00,299 INFO L93 Difference]: Finished difference Result 387 states and 565 transitions. [2021-10-11 02:29:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:00,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2021-10-11 02:29:00,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:00,301 INFO L225 Difference]: With dead ends: 387 [2021-10-11 02:29:00,301 INFO L226 Difference]: Without dead ends: 209 [2021-10-11 02:29:00,302 INFO L677 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 [2021-10-11 02:29:00,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-10-11 02:29:00,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2021-10-11 02:29:00,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2021-10-11 02:29:00,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 306 transitions. [2021-10-11 02:29:00,314 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 306 transitions. Word has length 38 [2021-10-11 02:29:00,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:00,315 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 306 transitions. [2021-10-11 02:29:00,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:00,315 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 306 transitions. [2021-10-11 02:29:00,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-11 02:29:00,318 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:00,318 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:00,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:29:00,319 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:29:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:00,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1580375986, now seen corresponding path program 1 times [2021-10-11 02:29:00,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:00,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040611928] [2021-10-11 02:29:00,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:00,334 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:29:00,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123462284] [2021-10-11 02:29:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:29:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:00,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:29:00,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:00,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:29:00,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:00,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040611928] [2021-10-11 02:29:00,677 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:29:00,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123462284] [2021-10-11 02:29:00,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:00,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-11 02:29:00,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343580248] [2021-10-11 02:29:00,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:00,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:00,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:00,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:00,679 INFO L87 Difference]: Start difference. First operand 209 states and 306 transitions. Second operand 4 states. [2021-10-11 02:29:01,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:01,008 INFO L93 Difference]: Finished difference Result 515 states and 773 transitions. [2021-10-11 02:29:01,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:01,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2021-10-11 02:29:01,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:01,012 INFO L225 Difference]: With dead ends: 515 [2021-10-11 02:29:01,012 INFO L226 Difference]: Without dead ends: 308 [2021-10-11 02:29:01,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:01,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-10-11 02:29:01,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 292. [2021-10-11 02:29:01,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2021-10-11 02:29:01,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 410 transitions. [2021-10-11 02:29:01,036 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 410 transitions. Word has length 38 [2021-10-11 02:29:01,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:01,036 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 410 transitions. [2021-10-11 02:29:01,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:01,038 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 410 transitions. [2021-10-11 02:29:01,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-11 02:29:01,042 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:01,042 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:01,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-11 02:29:01,269 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:29:01,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:01,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1086863165, now seen corresponding path program 1 times [2021-10-11 02:29:01,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:01,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998936757] [2021-10-11 02:29:01,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:01,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:01,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998936757] [2021-10-11 02:29:01,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:01,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:01,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831940577] [2021-10-11 02:29:01,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:01,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:01,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:01,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:01,349 INFO L87 Difference]: Start difference. First operand 292 states and 410 transitions. Second operand 3 states. [2021-10-11 02:29:01,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:01,553 INFO L93 Difference]: Finished difference Result 380 states and 530 transitions. [2021-10-11 02:29:01,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:01,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2021-10-11 02:29:01,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:01,557 INFO L225 Difference]: With dead ends: 380 [2021-10-11 02:29:01,557 INFO L226 Difference]: Without dead ends: 349 [2021-10-11 02:29:01,558 INFO L677 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 [2021-10-11 02:29:01,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-10-11 02:29:01,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2021-10-11 02:29:01,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2021-10-11 02:29:01,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 496 transitions. [2021-10-11 02:29:01,574 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 496 transitions. Word has length 40 [2021-10-11 02:29:01,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:01,574 INFO L481 AbstractCegarLoop]: Abstraction has 349 states and 496 transitions. [2021-10-11 02:29:01,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:01,574 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 496 transitions. [2021-10-11 02:29:01,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-10-11 02:29:01,576 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:01,576 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:01,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:29:01,577 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:29:01,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:01,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1192549091, now seen corresponding path program 1 times [2021-10-11 02:29:01,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:01,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122502101] [2021-10-11 02:29:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:01,652 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 02:29:01,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122502101] [2021-10-11 02:29:01,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:01,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:01,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762770775] [2021-10-11 02:29:01,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:01,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:01,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:01,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:01,655 INFO L87 Difference]: Start difference. First operand 349 states and 496 transitions. Second operand 3 states. [2021-10-11 02:29:01,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:01,828 INFO L93 Difference]: Finished difference Result 717 states and 1021 transitions. [2021-10-11 02:29:01,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:01,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2021-10-11 02:29:01,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:01,834 INFO L225 Difference]: With dead ends: 717 [2021-10-11 02:29:01,834 INFO L226 Difference]: Without dead ends: 370 [2021-10-11 02:29:01,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:01,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-10-11 02:29:01,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 368. [2021-10-11 02:29:01,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2021-10-11 02:29:01,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 518 transitions. [2021-10-11 02:29:01,857 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 518 transitions. Word has length 59 [2021-10-11 02:29:01,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:01,858 INFO L481 AbstractCegarLoop]: Abstraction has 368 states and 518 transitions. [2021-10-11 02:29:01,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 518 transitions. [2021-10-11 02:29:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-11 02:29:01,860 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:01,860 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:01,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:29:01,860 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:29:01,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:01,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1324322711, now seen corresponding path program 1 times [2021-10-11 02:29:01,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:01,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270513037] [2021-10-11 02:29:01,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:01,886 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:29:01,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378541665] [2021-10-11 02:29:01,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55c60c16-d892-42ab-bc75-84e5becc2ee4/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:29:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:01,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:02,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:02,245 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:29:02,245 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:29:02,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-11 02:29:02,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:02 BoogieIcfgContainer [2021-10-11 02:29:02,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:02,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:02,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:02,586 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:02,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:57" (3/4) ... [2021-10-11 02:29:02,590 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:29:02,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:02,596 INFO L168 Benchmark]: Toolchain (without parser) took 6432.55 ms. Allocated memory was 130.0 MB in the beginning and 199.2 MB in the end (delta: 69.2 MB). Free memory was 106.8 MB in the beginning and 114.3 MB in the end (delta: -7.5 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:02,597 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 59.6 MB in the end (delta: 60.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:02,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.55 ms. Allocated memory is still 130.0 MB. Free memory was 106.8 MB in the beginning and 104.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:02,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.47 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 101.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:02,602 INFO L168 Benchmark]: Boogie Preprocessor took 88.39 ms. Allocated memory is still 130.0 MB. Free memory was 101.1 MB in the beginning and 99.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:02,603 INFO L168 Benchmark]: RCFGBuilder took 1182.50 ms. Allocated memory is still 130.0 MB. Free memory was 99.0 MB in the beginning and 95.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:02,607 INFO L168 Benchmark]: TraceAbstraction took 4640.65 ms. Allocated memory was 130.0 MB in the beginning and 199.2 MB in the end (delta: 69.2 MB). Free memory was 94.5 MB in the beginning and 114.3 MB in the end (delta: -19.8 MB). Peak memory consumption was 50.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:02,607 INFO L168 Benchmark]: Witness Printer took 4.05 ms. Allocated memory is still 199.2 MB. Free memory is still 114.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:02,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 59.6 MB in the end (delta: 60.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 430.55 ms. Allocated memory is still 130.0 MB. Free memory was 106.8 MB in the beginning and 104.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.47 ms. Allocated memory is still 130.0 MB. Free memory was 104.3 MB in the beginning and 101.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.39 ms. Allocated memory is still 130.0 MB. Free memory was 101.1 MB in the beginning and 99.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1182.50 ms. Allocated memory is still 130.0 MB. Free memory was 99.0 MB in the beginning and 95.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4640.65 ms. Allocated memory was 130.0 MB in the beginning and 199.2 MB in the end (delta: 69.2 MB). Free memory was 94.5 MB in the beginning and 114.3 MB in the end (delta: -19.8 MB). Peak memory consumption was 50.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.05 ms. Allocated memory is still 199.2 MB. Free memory is still 114.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 548]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 93. Possible FailurePath: [L692] int s ; [L693] int tmp ; [L697] s = 8464 [L17] int s__info_callback = __VERIFIER_nondet_int(); [L18] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L19] int s__state ; [L20] int s__new_session ; [L21] int s__server ; [L22] int s__version = __VERIFIER_nondet_int(); [L23] int s__type ; [L24] int s__init_num ; [L25] int s__hit = __VERIFIER_nondet_int(); [L26] int s__rwstate ; [L27] int s__init_buf___0 ; [L28] int s__debug = __VERIFIER_nondet_int(); [L29] int s__shutdown ; [L30] int s__cert = __VERIFIER_nondet_int(); [L31] int s__options = __VERIFIER_nondet_int(); [L32] int s__verify_mode = __VERIFIER_nondet_int(); [L33] int s__session__peer = __VERIFIER_nondet_int(); [L34] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int(); [L35] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L36] int s__ctx__stats__sess_accept_renegotiate ; [L37] int s__ctx__stats__sess_accept ; [L38] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__cert_request ; [L40] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L41] int s__s3__tmp__use_rsa_tmp ; [L42] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L43] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L44] int s__s3__tmp__next_state___0 ; [L45] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int(); [L46] int s__session__cipher ; [L47] int buf = __VERIFIER_nondet_int(); [L48] unsigned long l ; [L49] unsigned long Time ; [L50] unsigned long tmp = __VERIFIER_nondet_ulong(); [L51] int cb ; [L52] long num1 ; [L53] int ret ; [L54] int new_state ; [L55] int state ; [L56] int skip ; [L57] int got_new_session ; [L58] int tmp___1 = __VERIFIER_nondet_int(); [L59] int tmp___2 = __VERIFIER_nondet_int(); [L60] int tmp___3 ; [L61] int tmp___4 ; [L62] int tmp___5 ; [L63] int tmp___6 ; [L64] int tmp___7 ; [L65] long tmp___8 = __VERIFIER_nondet_long(); [L66] int tmp___9 ; [L67] int tmp___10 ; [L68] int blastFlag ; [L69] int ag_X ; [L70] int ag_Y = __VERIFIER_nondet_int(); [L71] int ag_Z ; [L72] int __retres70 ; [L3] COND FALSE !(!cond) [L76] s__state = initial_state [L77] blastFlag = 0 [L78] Time = tmp [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] got_new_session = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L92] s__in_handshake = s__in_handshake + 1 [L93] COND FALSE !(tmp___1 & 12288) [L102] COND FALSE !(s__cert == 0) [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND TRUE s__state == 8464 [L294] s__shutdown = 0 [L295] ret = __VERIFIER_nondet_int() [L296] COND TRUE blastFlag == 0 [L297] blastFlag = 1 [L301] COND FALSE !(ret <= 0) [L306] got_new_session = 1 [L307] s__state = 8496 [L308] s__init_num = 0 [L641] COND FALSE !(! s__s3__tmp__reuse_message) [L670] skip = 0 [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND FALSE !(s__state == 8464) [L139] COND FALSE !(s__state == 8465) [L142] COND FALSE !(s__state == 8466) [L145] COND TRUE s__state == 8496 [L312] ret = __VERIFIER_nondet_int() [L313] COND TRUE blastFlag == 1 [L314] blastFlag = 2 [L318] COND FALSE !(ret <= 0) [L323] COND TRUE \read(s__hit) [L324] s__state = 8656 [L328] s__init_num = 0 [L641] COND FALSE !(! s__s3__tmp__reuse_message) [L670] skip = 0 [L109] COND TRUE 1 [L111] state = s__state [L112] COND FALSE !(s__state == 12292) [L115] COND FALSE !(s__state == 16384) [L118] COND FALSE !(s__state == 8192) [L121] COND FALSE !(s__state == 24576) [L124] COND FALSE !(s__state == 8195) [L127] COND FALSE !(s__state == 8480) [L130] COND FALSE !(s__state == 8481) [L133] COND FALSE !(s__state == 8482) [L136] COND FALSE !(s__state == 8464) [L139] COND FALSE !(s__state == 8465) [L142] COND FALSE !(s__state == 8466) [L145] COND FALSE !(s__state == 8496) [L148] COND FALSE !(s__state == 8497) [L151] COND FALSE !(s__state == 8512) [L154] COND FALSE !(s__state == 8513) [L157] COND FALSE !(s__state == 8528) [L160] COND FALSE !(s__state == 8529) [L163] COND FALSE !(s__state == 8544) [L166] COND FALSE !(s__state == 8545) [L169] COND FALSE !(s__state == 8560) [L172] COND FALSE !(s__state == 8561) [L175] COND FALSE !(s__state == 8448) [L178] COND FALSE !(s__state == 8576) [L181] COND FALSE !(s__state == 8577) [L184] COND FALSE !(s__state == 8592) [L187] COND FALSE !(s__state == 8593) [L190] COND FALSE !(s__state == 8608) [L193] COND FALSE !(s__state == 8609) [L196] COND FALSE !(s__state == 8640) [L199] COND FALSE !(s__state == 8641) [L202] COND TRUE s__state == 8656 [L529] s__session__cipher = s__s3__tmp__new_cipher [L530] tmp___9 = __VERIFIER_nondet_int() [L531] COND FALSE !(! tmp___9) [L537] ret = __VERIFIER_nondet_int() [L538] COND TRUE blastFlag == 2 [L539] blastFlag = 3 [L543] COND FALSE !(ret <= 0) [L548] ag_X * ag_Y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1332 SDtfs, 1395 SDslu, 335 SDs, 0 SdLazy, 1056 SolverSat, 381 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 78 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 366 NumberOfCodeBlocks, 366 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 28572 SizeOfPredicates, 3 NumberOfNonLiveVariables, 144 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 39/39 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 Received shutdown request...