./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs --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 d5373c38d73323914cf25eca040b989268be3ed8 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/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: ERROR: ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_37| --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:05:53,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:05:53,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:05:53,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:05:53,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:05:53,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:05:53,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:05:53,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:05:53,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:05:53,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:05:53,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:05:53,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:05:53,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:05:53,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:05:53,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:05:53,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:05:53,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:05:53,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:05:53,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:05:53,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:05:53,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:05:53,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:05:53,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:05:53,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:05:54,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:05:54,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:05:54,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:05:54,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:05:54,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:05:54,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:05:54,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:05:54,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:05:54,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:05:54,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:05:54,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:05:54,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:05:54,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:05:54,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:05:54,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:05:54,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:05:54,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:05:54,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-16 03:05:54,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:05:54,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:05:54,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:05:54,087 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:05:54,087 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:05:54,088 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:05:54,088 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:05:54,088 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:05:54,088 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:05:54,089 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:05:54,090 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:05:54,091 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:05:54,091 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:05:54,091 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:05:54,092 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:05:54,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:05:54,093 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:05:54,093 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 03:05:54,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:05:54,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:05:54,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:05:54,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:05:54,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:05:54,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:05:54,095 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-16 03:05:54,096 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:05:54,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:05:54,096 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:05:54,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:05:54,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:05:54,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:05:54,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:05:54,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:05:54,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:05:54,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:05:54,101 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:05:54,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:05:54,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:05:54,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:05:54,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:05:54,103 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_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5373c38d73323914cf25eca040b989268be3ed8 [2021-10-16 03:05:54,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:05:54,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:05:54,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:05:54,473 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:05:54,485 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:05:54,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i [2021-10-16 03:05:54,573 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/data/2c59f3601/6d022ebb3886402ebc9354fd62c7243e/FLAGaf603787d [2021-10-16 03:05:55,304 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:05:55,305 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i [2021-10-16 03:05:55,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/data/2c59f3601/6d022ebb3886402ebc9354fd62c7243e/FLAGaf603787d [2021-10-16 03:05:55,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/data/2c59f3601/6d022ebb3886402ebc9354fd62c7243e [2021-10-16 03:05:55,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:05:55,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:05:55,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:05:55,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:05:55,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:05:55,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:05:55" (1/1) ... [2021-10-16 03:05:55,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e6d8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:55, skipping insertion in model container [2021-10-16 03:05:55,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:05:55" (1/1) ... [2021-10-16 03:05:55,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:05:55,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:05:56,078 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i[37019,37032] [2021-10-16 03:05:56,266 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i[47352,47365] [2021-10-16 03:05:56,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:05:56,289 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:05:56,348 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i[37019,37032] [2021-10-16 03:05:56,439 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test2-1.i[47352,47365] [2021-10-16 03:05:56,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:05:56,513 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:05:56,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56 WrapperNode [2021-10-16 03:05:56,514 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:05:56,515 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:05:56,515 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:05:56,515 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:05:56,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (1/1) ... [2021-10-16 03:05:56,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (1/1) ... [2021-10-16 03:05:56,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:05:56,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:05:56,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:05:56,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:05:56,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (1/1) ... [2021-10-16 03:05:56,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (1/1) ... [2021-10-16 03:05:56,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (1/1) ... [2021-10-16 03:05:56,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (1/1) ... [2021-10-16 03:05:56,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (1/1) ... [2021-10-16 03:05:56,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (1/1) ... [2021-10-16 03:05:56,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (1/1) ... [2021-10-16 03:05:56,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:05:56,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:05:56,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:05:56,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:05:56,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (1/1) ... [2021-10-16 03:05:56,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:05:56,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:05:56,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:05:56,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:05:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:05:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-10-16 03:05:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 03:05:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:05:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 03:05:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 03:05:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 03:05:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 03:05:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:05:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:05:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:06:01,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:06:01,295 INFO L299 CfgBuilder]: Removed 76 assume(true) statements. [2021-10-16 03:06:01,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:06:01 BoogieIcfgContainer [2021-10-16 03:06:01,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:06:01,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:06:01,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:06:01,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:06:01,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:05:55" (1/3) ... [2021-10-16 03:06:01,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407f2803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:06:01, skipping insertion in model container [2021-10-16 03:06:01,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:05:56" (2/3) ... [2021-10-16 03:06:01,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@407f2803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:06:01, skipping insertion in model container [2021-10-16 03:06:01,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:06:01" (3/3) ... [2021-10-16 03:06:01,308 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test2-1.i [2021-10-16 03:06:01,317 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:06:01,318 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-10-16 03:06:01,379 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:06:01,387 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:06:01,387 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-16 03:06:01,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 91 states have (on average 1.8681318681318682) internal successors, (170), 99 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 03:06:01,422 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:01,423 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 03:06:01,423 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-16 03:06:01,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:01,429 INFO L82 PathProgramCache]: Analyzing trace with hash 23296147, now seen corresponding path program 1 times [2021-10-16 03:06:01,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:01,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071539362] [2021-10-16 03:06:01,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:01,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:01,551 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 03:06:01,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1271974166] [2021-10-16 03:06:01,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:01,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:06:01,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:06:01,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:06:01,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 03:06:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:01,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 03:06:01,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:01,862 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-10-16 03:06:01,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2021-10-16 03:06:02,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-16 03:06:02,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2021-10-16 03:06:02,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:02,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:02,598 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:02,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071539362] [2021-10-16 03:06:02,598 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:06:02,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271974166] [2021-10-16 03:06:02,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271974166] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:02,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:02,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 4 [2021-10-16 03:06:02,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243929425] [2021-10-16 03:06:02,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:06:02,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:06:02,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:06:02,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:06:02,627 INFO L87 Difference]: Start difference. First operand has 100 states, 91 states have (on average 1.8681318681318682) internal successors, (170), 99 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:07,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:07,295 INFO L93 Difference]: Finished difference Result 302 states and 519 transitions. [2021-10-16 03:06:07,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 03:06:07,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-16 03:06:07,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:07,309 INFO L225 Difference]: With dead ends: 302 [2021-10-16 03:06:07,309 INFO L226 Difference]: Without dead ends: 199 [2021-10-16 03:06:07,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 108.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:06:07,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-16 03:06:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 102. [2021-10-16 03:06:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 101 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:07,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2021-10-16 03:06:07,355 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 4 [2021-10-16 03:06:07,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:07,355 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2021-10-16 03:06:07,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:07,356 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2021-10-16 03:06:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-16 03:06:07,357 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:07,357 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:07,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:07,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-16 03:06:07,566 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-16 03:06:07,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:07,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1726583111, now seen corresponding path program 1 times [2021-10-16 03:06:07,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:07,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420436726] [2021-10-16 03:06:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:07,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:07,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:07,704 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:07,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420436726] [2021-10-16 03:06:07,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420436726] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:07,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:07,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:06:07,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238523170] [2021-10-16 03:06:07,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:06:07,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:06:07,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:06:07,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:07,708 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:08,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:08,268 INFO L93 Difference]: Finished difference Result 187 states and 218 transitions. [2021-10-16 03:06:08,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:06:08,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-16 03:06:08,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:08,271 INFO L225 Difference]: With dead ends: 187 [2021-10-16 03:06:08,271 INFO L226 Difference]: Without dead ends: 144 [2021-10-16 03:06:08,272 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:06:08,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-16 03:06:08,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 102. [2021-10-16 03:06:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 94 states have (on average 1.2553191489361701) internal successors, (118), 101 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2021-10-16 03:06:08,284 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 20 [2021-10-16 03:06:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:08,286 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2021-10-16 03:06:08,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2021-10-16 03:06:08,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-16 03:06:08,288 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:08,288 INFO L512 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] [2021-10-16 03:06:08,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:06:08,289 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-16 03:06:08,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:08,290 INFO L82 PathProgramCache]: Analyzing trace with hash 422466660, now seen corresponding path program 1 times [2021-10-16 03:06:08,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:08,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647313112] [2021-10-16 03:06:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:08,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:08,337 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 03:06:08,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72919546] [2021-10-16 03:06:08,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:08,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:06:08,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:06:08,345 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:06:08,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 03:06:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:08,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 03:06:08,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:08,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:08,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:08,831 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:08,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647313112] [2021-10-16 03:06:08,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:06:08,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72919546] [2021-10-16 03:06:08,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72919546] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:08,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:08,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 03:06:08,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376045512] [2021-10-16 03:06:08,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:06:08,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:06:08,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:06:08,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:08,837 INFO L87 Difference]: Start difference. First operand 102 states and 118 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:08,988 INFO L93 Difference]: Finished difference Result 239 states and 275 transitions. [2021-10-16 03:06:08,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:06:08,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-16 03:06:08,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:08,990 INFO L225 Difference]: With dead ends: 239 [2021-10-16 03:06:08,991 INFO L226 Difference]: Without dead ends: 142 [2021-10-16 03:06:08,992 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:06:08,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-16 03:06:09,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2021-10-16 03:06:09,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 130 states have (on average 1.2307692307692308) internal successors, (160), 137 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 160 transitions. [2021-10-16 03:06:09,019 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 160 transitions. Word has length 28 [2021-10-16 03:06:09,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:09,020 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 160 transitions. [2021-10-16 03:06:09,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:09,020 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 160 transitions. [2021-10-16 03:06:09,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 03:06:09,021 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:09,022 INFO L512 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] [2021-10-16 03:06:09,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:09,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:06:09,246 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-16 03:06:09,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:09,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1044700816, now seen corresponding path program 1 times [2021-10-16 03:06:09,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:09,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349275582] [2021-10-16 03:06:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:09,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:09,287 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 03:06:09,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1997653652] [2021-10-16 03:06:09,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:09,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:06:09,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:06:09,293 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:06:09,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 03:06:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:09,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 03:06:09,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:09,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:09,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:09,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:09,711 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:09,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349275582] [2021-10-16 03:06:09,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:06:09,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997653652] [2021-10-16 03:06:09,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997653652] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:09,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:09,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:06:09,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082143630] [2021-10-16 03:06:09,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:06:09,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:06:09,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:06:09,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:09,714 INFO L87 Difference]: Start difference. First operand 138 states and 160 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:10,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:10,225 INFO L93 Difference]: Finished difference Result 262 states and 309 transitions. [2021-10-16 03:06:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:06:10,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-16 03:06:10,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:10,228 INFO L225 Difference]: With dead ends: 262 [2021-10-16 03:06:10,228 INFO L226 Difference]: Without dead ends: 142 [2021-10-16 03:06:10,229 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:06:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-16 03:06:10,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2021-10-16 03:06:10,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 134 states have (on average 1.2238805970149254) internal successors, (164), 141 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:10,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 164 transitions. [2021-10-16 03:06:10,239 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 164 transitions. Word has length 33 [2021-10-16 03:06:10,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:10,240 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 164 transitions. [2021-10-16 03:06:10,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:06:10,240 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 164 transitions. [2021-10-16 03:06:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 03:06:10,241 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:10,242 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:10,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:10,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:06:10,457 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-10-16 03:06:10,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:10,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1496784048, now seen corresponding path program 1 times [2021-10-16 03:06:10,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:10,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918535214] [2021-10-16 03:06:10,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:10,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:10,481 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 03:06:10,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997321440] [2021-10-16 03:06:10,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:10,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:06:10,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:06:10,484 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:06:10,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 03:06:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:10,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 03:06:10,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:06:10,858 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 03:06:10,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:06:10,975 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-16 03:06:10,975 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:10,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918535214] [2021-10-16 03:06:10,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 03:06:10,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997321440] [2021-10-16 03:06:10,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997321440] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:06:10,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1623802979] [2021-10-16 03:06:11,009 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2021-10-16 03:06:11,009 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 03:06:11,014 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 03:06:11,022 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 03:06:11,023 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 03:06:11,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:11,093 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:06:11,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:11,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 03:06:11,095 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:06:11,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:11,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-16 03:06:11,096 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:06:11,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:11,098 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-10-16 03:06:11,098 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:06:11,098 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:11,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 03:06:11,100 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:06:11,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:11,101 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 03:06:11,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-10-16 03:06:11,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:11,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:11,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:06:11,207 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 03:06:11,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 03:06:11,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:11,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 03:06:11,224 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:11,225 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 03:06:11,225 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 03:06:11,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:06:11,293 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:11,297 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:06:11,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-10-16 03:06:11,300 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 03:06:11,301 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:166, output treesize:150 [2021-10-16 03:06:11,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-16 03:06:11,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:06:11,518 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_37| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 03:06:11,521 INFO L168 Benchmark]: Toolchain (without parser) took 16059.37 ms. Allocated memory was 81.8 MB in the beginning and 153.1 MB in the end (delta: 71.3 MB). Free memory was 47.0 MB in the beginning and 106.8 MB in the end (delta: -59.8 MB). Peak memory consumption was 87.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:11,521 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 62.0 MB in the beginning and 62.0 MB in the end (delta: 18.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:06:11,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1049.69 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 46.8 MB in the beginning and 56.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:11,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.98 ms. Allocated memory is still 104.9 MB. Free memory was 56.0 MB in the beginning and 50.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:11,524 INFO L168 Benchmark]: Boogie Preprocessor took 133.38 ms. Allocated memory is still 104.9 MB. Free memory was 50.3 MB in the beginning and 44.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:11,524 INFO L168 Benchmark]: RCFGBuilder took 4507.12 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 44.0 MB in the beginning and 73.7 MB in the end (delta: -29.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:11,525 INFO L168 Benchmark]: TraceAbstraction took 10220.73 ms. Allocated memory was 125.8 MB in the beginning and 153.1 MB in the end (delta: 27.3 MB). Free memory was 72.6 MB in the beginning and 106.8 MB in the end (delta: -34.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:11,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 62.0 MB in the beginning and 62.0 MB in the end (delta: 18.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1049.69 ms. Allocated memory was 81.8 MB in the beginning and 104.9 MB in the end (delta: 23.1 MB). Free memory was 46.8 MB in the beginning and 56.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 140.98 ms. Allocated memory is still 104.9 MB. Free memory was 56.0 MB in the beginning and 50.3 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 133.38 ms. Allocated memory is still 104.9 MB. Free memory was 50.3 MB in the beginning and 44.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4507.12 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 44.0 MB in the beginning and 73.7 MB in the end (delta: -29.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10220.73 ms. Allocated memory was 125.8 MB in the beginning and 153.1 MB in the end (delta: 27.3 MB). Free memory was 72.6 MB in the beginning and 106.8 MB in the end (delta: -34.2 MB). Peak memory consumption was 68.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_37| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_37|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 03:06:11,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989ce0e9-6094-4e53-9632-85e70678da56/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...