./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56797e61f5ee281c00742e683df6d32e4d423773c50b7f1c748881e4f8402597 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:32:33,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:32:33,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:32:33,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:32:33,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:32:33,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:32:33,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:32:33,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:32:33,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:32:33,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:32:33,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:32:33,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:32:33,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:32:33,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:32:33,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:32:33,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:32:33,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:32:33,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:32:33,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:32:33,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:32:33,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:32:33,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:32:33,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:32:33,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:32:33,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:32:33,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:32:33,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:32:33,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:32:33,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:32:33,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:32:33,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:32:33,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:32:33,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:32:33,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:32:33,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:32:33,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:32:33,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:32:33,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:32:33,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:32:33,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:32:33,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:32:33,525 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-20 23:32:33,570 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:32:33,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:32:33,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:32:33,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:32:33,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:32:33,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:32:33,578 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:32:33,579 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:32:33,579 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:32:33,579 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:32:33,580 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:32:33,580 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:32:33,580 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:32:33,581 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:32:33,581 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:32:33,581 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:32:33,581 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:32:33,581 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:32:33,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:32:33,583 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:32:33,584 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 23:32:33,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:32:33,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:32:33,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:32:33,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:32:33,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:32:33,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:32:33,585 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 23:32:33,585 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:32:33,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:32:33,585 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:32:33,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:32:33,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:32:33,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:32:33,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:33,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:32:33,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:32:33,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:32:33,587 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:32:33,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:32:33,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:32:33,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:32:33,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:32:33,589 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_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56797e61f5ee281c00742e683df6d32e4d423773c50b7f1c748881e4f8402597 [2021-11-20 23:32:33,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:32:33,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:32:33,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:32:33,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:32:33,857 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:32:33,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2021-11-20 23:32:33,930 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/data/02210fb68/bcc7f695e10041c4a13b421f2267276e/FLAG4486d0db1 [2021-11-20 23:32:34,378 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:32:34,378 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i [2021-11-20 23:32:34,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/data/02210fb68/bcc7f695e10041c4a13b421f2267276e/FLAG4486d0db1 [2021-11-20 23:32:34,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/data/02210fb68/bcc7f695e10041c4a13b421f2267276e [2021-11-20 23:32:34,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:32:34,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:32:34,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:34,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:32:34,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:32:34,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:34" (1/1) ... [2021-11-20 23:32:34,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556df76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:34, skipping insertion in model container [2021-11-20 23:32:34,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:34" (1/1) ... [2021-11-20 23:32:34,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:32:34,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:32:34,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i[873,886] [2021-11-20 23:32:35,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:35,011 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:32:35,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/sv-benchmarks/c/loop-zilu/benchmark43_conjunctive.i[873,886] [2021-11-20 23:32:35,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:35,037 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:32:35,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35 WrapperNode [2021-11-20 23:32:35,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:35,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:35,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:32:35,038 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:32:35,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,070 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-11-20 23:32:35,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:35,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:32:35,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:32:35,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:32:35,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:32:35,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:32:35,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:32:35,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:32:35,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (1/1) ... [2021-11-20 23:32:35,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:35,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:35,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:32:35,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:32:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:32:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:32:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:32:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:32:35,252 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:32:35,254 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:32:35,405 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:32:35,426 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:32:35,426 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 23:32:35,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:35 BoogieIcfgContainer [2021-11-20 23:32:35,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:32:35,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:32:35,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:32:35,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:32:35,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:32:34" (1/3) ... [2021-11-20 23:32:35,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457412fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:35, skipping insertion in model container [2021-11-20 23:32:35,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:35" (2/3) ... [2021-11-20 23:32:35,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457412fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:35, skipping insertion in model container [2021-11-20 23:32:35,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:35" (3/3) ... [2021-11-20 23:32:35,437 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark43_conjunctive.i [2021-11-20 23:32:35,442 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:32:35,442 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-20 23:32:35,489 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:32:35,496 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 23:32:35,497 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-20 23:32:35,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:35,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 23:32:35,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:35,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 23:32:35,517 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-20 23:32:35,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:35,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2092610, now seen corresponding path program 1 times [2021-11-20 23:32:35,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:35,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133771463] [2021-11-20 23:32:35,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:35,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:35,672 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:35,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133771463] [2021-11-20 23:32:35,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133771463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:35,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:35,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:35,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733324782] [2021-11-20 23:32:35,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:35,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:32:35,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:35,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:32:35,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:35,710 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.75) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:35,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:35,749 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-11-20 23:32:35,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:32:35,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 [2021-11-20 23:32:35,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:35,759 INFO L225 Difference]: With dead ends: 16 [2021-11-20 23:32:35,759 INFO L226 Difference]: Without dead ends: 11 [2021-11-20 23:32:35,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:35,766 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:35,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 10 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:32:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-20 23:32:35,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-11-20 23:32:35,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:35,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-11-20 23:32:35,798 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 4 [2021-11-20 23:32:35,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:35,798 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-11-20 23:32:35,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:35,799 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-11-20 23:32:35,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-20 23:32:35,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:35,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-20 23:32:35,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:32:35,800 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-20 23:32:35,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:35,801 INFO L85 PathProgramCache]: Analyzing trace with hash 64870960, now seen corresponding path program 1 times [2021-11-20 23:32:35,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:35,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096852252] [2021-11-20 23:32:35,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:35,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:35,829 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:35,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096852252] [2021-11-20 23:32:35,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096852252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:35,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:35,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:32:35,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452674754] [2021-11-20 23:32:35,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:35,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:32:35,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:35,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:32:35,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:35,833 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:35,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:35,844 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-11-20 23:32:35,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:32:35,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-20 23:32:35,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:35,845 INFO L225 Difference]: With dead ends: 10 [2021-11-20 23:32:35,845 INFO L226 Difference]: Without dead ends: 9 [2021-11-20 23:32:35,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:35,848 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:35,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:32:35,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-20 23:32:35,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-20 23:32:35,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:35,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-20 23:32:35,852 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2021-11-20 23:32:35,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:35,852 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-20 23:32:35,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:35,853 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-20 23:32:35,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 23:32:35,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:35,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 23:32:35,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:32:35,854 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-20 23:32:35,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:35,855 INFO L85 PathProgramCache]: Analyzing trace with hash 2010999812, now seen corresponding path program 1 times [2021-11-20 23:32:35,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:35,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821856435] [2021-11-20 23:32:35,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:35,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:35,926 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:35,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821856435] [2021-11-20 23:32:35,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821856435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:35,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:35,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:35,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949252397] [2021-11-20 23:32:35,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:35,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:32:35,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:35,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:32:35,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:35,930 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:35,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:35,947 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2021-11-20 23:32:35,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:32:35,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-20 23:32:35,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:35,958 INFO L225 Difference]: With dead ends: 10 [2021-11-20 23:32:35,958 INFO L226 Difference]: Without dead ends: 9 [2021-11-20 23:32:35,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:35,960 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:35,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:32:35,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-20 23:32:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-11-20 23:32:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2021-11-20 23:32:35,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-20 23:32:35,965 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2021-11-20 23:32:35,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:35,965 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-20 23:32:35,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:35,966 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-20 23:32:35,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 23:32:35,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:35,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:35,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 23:32:35,967 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-11-20 23:32:35,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:35,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2083515214, now seen corresponding path program 1 times [2021-11-20 23:32:35,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:35,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565986378] [2021-11-20 23:32:35,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:35,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:36,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:36,020 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:36,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565986378] [2021-11-20 23:32:36,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565986378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:36,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:36,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 23:32:36,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301837532] [2021-11-20 23:32:36,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:36,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:32:36,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:36,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:32:36,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:36,023 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:36,047 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-11-20 23:32:36,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:32:36,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-20 23:32:36,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:36,048 INFO L225 Difference]: With dead ends: 8 [2021-11-20 23:32:36,048 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 23:32:36,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:36,055 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:36,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:32:36,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 23:32:36,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 23:32:36,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:36,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 23:32:36,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-11-20 23:32:36,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:36,066 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 23:32:36,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:36,066 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 23:32:36,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 23:32:36,069 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-11-20 23:32:36,070 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-11-20 23:32:36,070 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-11-20 23:32:36,071 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-11-20 23:32:36,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 23:32:36,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 23:32:36,107 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-20 23:32:36,107 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 23:32:36,108 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-20 23:32:36,108 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-11-20 23:32:36,108 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-11-20 23:32:36,114 INFO L854 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648))) [2021-11-20 23:32:36,114 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-20 23:32:36,115 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-11-20 23:32:36,115 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 23:32:36,115 INFO L861 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-11-20 23:32:36,115 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-20 23:32:36,116 INFO L858 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-11-20 23:32:36,116 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-11-20 23:32:36,119 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-20 23:32:36,121 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:32:36,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:32:36 BoogieIcfgContainer [2021-11-20 23:32:36,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:32:36,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:32:36,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:32:36,154 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:32:36,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:35" (3/4) ... [2021-11-20 23:32:36,158 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 23:32:36,170 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-20 23:32:36,171 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-20 23:32:36,172 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-20 23:32:36,172 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 23:32:36,204 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-20 23:32:36,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:32:36,213 INFO L158 Benchmark]: Toolchain (without parser) took 1441.19ms. Allocated memory is still 115.3MB. Free memory was 79.7MB in the beginning and 42.7MB in the end (delta: 37.0MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2021-11-20 23:32:36,214 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory was 51.9MB in the beginning and 51.9MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:32:36,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.28ms. Allocated memory is still 115.3MB. Free memory was 79.5MB in the beginning and 90.9MB in the end (delta: -11.4MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-11-20 23:32:36,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.94ms. Allocated memory is still 115.3MB. Free memory was 90.9MB in the beginning and 89.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:32:36,215 INFO L158 Benchmark]: Boogie Preprocessor took 18.30ms. Allocated memory is still 115.3MB. Free memory was 89.2MB in the beginning and 88.3MB in the end (delta: 958.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:32:36,216 INFO L158 Benchmark]: RCFGBuilder took 338.83ms. Allocated memory is still 115.3MB. Free memory was 88.3MB in the beginning and 78.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 23:32:36,216 INFO L158 Benchmark]: TraceAbstraction took 719.66ms. Allocated memory is still 115.3MB. Free memory was 78.3MB in the beginning and 45.2MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-20 23:32:36,219 INFO L158 Benchmark]: Witness Printer took 62.24ms. Allocated memory is still 115.3MB. Free memory was 45.2MB in the beginning and 42.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:32:36,222 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 81.8MB. Free memory was 51.9MB in the beginning and 51.9MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.28ms. Allocated memory is still 115.3MB. Free memory was 79.5MB in the beginning and 90.9MB in the end (delta: -11.4MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.94ms. Allocated memory is still 115.3MB. Free memory was 90.9MB in the beginning and 89.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.30ms. Allocated memory is still 115.3MB. Free memory was 89.2MB in the beginning and 88.3MB in the end (delta: 958.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 338.83ms. Allocated memory is still 115.3MB. Free memory was 88.3MB in the beginning and 78.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 719.66ms. Allocated memory is still 115.3MB. Free memory was 78.3MB in the beginning and 45.2MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 62.24ms. Allocated memory is still 115.3MB. Free memory was 45.2MB in the beginning and 42.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 15 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 && 0 <= y + 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 23:32:36,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab0b5cfc-af38-4cdd-a304-9578413176e9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE