./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark45_disjunctive.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_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/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_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark45_disjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/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_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/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 7b2ca0dccbea91af64797d8a5eb7d4b3bdba1388224ef3389e5865a9e8982ac2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:01:54,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:01:54,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:01:54,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:01:54,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:01:54,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:01:54,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:01:54,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:01:54,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:01:54,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:01:54,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:01:54,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:01:54,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:01:54,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:01:54,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:01:54,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:01:54,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:01:54,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:01:54,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:01:54,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:01:54,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:01:54,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:01:54,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:01:54,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:01:54,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:01:54,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:01:54,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:01:54,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:01:54,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:01:54,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:01:54,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:01:54,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:01:54,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:01:54,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:01:54,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:01:54,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:01:54,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:01:54,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:01:54,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:01:54,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:01:54,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:01:54,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 01:01:54,507 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:01:54,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:01:54,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:01:54,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:01:54,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:01:54,508 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:01:54,508 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:01:54,509 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:01:54,509 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:01:54,509 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:01:54,509 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:01:54,509 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:01:54,510 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:01:54,510 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:01:54,510 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:01:54,510 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:01:54,518 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:01:54,518 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:01:54,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:01:54,519 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:01:54,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:01:54,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:01:54,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:01:54,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:01:54,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:01:54,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:01:54,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:01:54,521 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 01:01:54,522 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:01:54,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:01:54,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:01:54,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:01:54,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:01:54,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:01:54,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:01:54,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:01:54,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:01:54,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:01:54,525 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:01:54,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:01:54,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:01:54,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:01:54,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:01:54,527 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_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b2ca0dccbea91af64797d8a5eb7d4b3bdba1388224ef3389e5865a9e8982ac2 [2021-11-21 01:01:54,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:01:54,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:01:54,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:01:54,784 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:01:54,785 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:01:54,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/loop-zilu/benchmark45_disjunctive.i [2021-11-21 01:01:54,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/data/4207f9afa/b461ac744f814fe2b8e1bf5ec446bba3/FLAG9b3fabf7e [2021-11-21 01:01:55,407 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:01:55,408 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/sv-benchmarks/c/loop-zilu/benchmark45_disjunctive.i [2021-11-21 01:01:55,414 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/data/4207f9afa/b461ac744f814fe2b8e1bf5ec446bba3/FLAG9b3fabf7e [2021-11-21 01:01:55,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/data/4207f9afa/b461ac744f814fe2b8e1bf5ec446bba3 [2021-11-21 01:01:55,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:01:55,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:01:55,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:01:55,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:01:55,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:01:55,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:01:55" (1/1) ... [2021-11-21 01:01:55,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d74e6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:55, skipping insertion in model container [2021-11-21 01:01:55,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:01:55" (1/1) ... [2021-11-21 01:01:55,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:01:55,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:01:56,014 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_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/sv-benchmarks/c/loop-zilu/benchmark45_disjunctive.i[873,886] [2021-11-21 01:01:56,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:01:56,039 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:01:56,054 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_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/sv-benchmarks/c/loop-zilu/benchmark45_disjunctive.i[873,886] [2021-11-21 01:01:56,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:01:56,076 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:01:56,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56 WrapperNode [2021-11-21 01:01:56,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:01:56,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:01:56,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:01:56,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:01:56,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (1/1) ... [2021-11-21 01:01:56,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (1/1) ... [2021-11-21 01:01:56,114 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2021-11-21 01:01:56,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:01:56,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:01:56,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:01:56,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:01:56,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (1/1) ... [2021-11-21 01:01:56,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (1/1) ... [2021-11-21 01:01:56,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (1/1) ... [2021-11-21 01:01:56,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (1/1) ... [2021-11-21 01:01:56,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (1/1) ... [2021-11-21 01:01:56,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (1/1) ... [2021-11-21 01:01:56,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (1/1) ... [2021-11-21 01:01:56,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:01:56,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:01:56,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:01:56,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:01:56,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (1/1) ... [2021-11-21 01:01:56,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:01:56,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:01:56,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:01:56,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:01:56,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:01:56,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:01:56,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:01:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:01:56,307 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:01:56,309 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:01:56,436 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:01:56,458 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:01:56,458 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:01:56,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:01:56 BoogieIcfgContainer [2021-11-21 01:01:56,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:01:56,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:01:56,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:01:56,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:01:56,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:01:55" (1/3) ... [2021-11-21 01:01:56,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1681172e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:01:56, skipping insertion in model container [2021-11-21 01:01:56,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:56" (2/3) ... [2021-11-21 01:01:56,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1681172e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:01:56, skipping insertion in model container [2021-11-21 01:01:56,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:01:56" (3/3) ... [2021-11-21 01:01:56,467 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark45_disjunctive.i [2021-11-21 01:01:56,473 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:01:56,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-21 01:01:56,520 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:01:56,527 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 [2021-11-21 01:01:56,527 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-21 01:01:56,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:01:56,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 01:01:56,546 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:01:56,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 01:01:56,547 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)] === [2021-11-21 01:01:56,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:01:56,552 INFO L85 PathProgramCache]: Analyzing trace with hash 70412118, now seen corresponding path program 1 times [2021-11-21 01:01:56,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:01:56,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202412038] [2021-11-21 01:01:56,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:01:56,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:01:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:01:56,687 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:01:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:01:56,718 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 01:01:56,720 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:01:56,721 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-11-21 01:01:56,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-11-21 01:01:56,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-11-21 01:01:56,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-11-21 01:01:56,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:01:56,730 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-21 01:01:56,733 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:01:56,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:01:56 BoogieIcfgContainer [2021-11-21 01:01:56,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:01:56,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:01:56,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:01:56,753 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:01:56,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:01:56" (3/4) ... [2021-11-21 01:01:56,756 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 01:01:56,788 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 01:01:56,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:01:56,790 INFO L158 Benchmark]: Toolchain (without parser) took 984.96ms. Allocated memory is still 159.4MB. Free memory was 123.9MB in the beginning and 106.0MB in the end (delta: 17.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2021-11-21 01:01:56,791 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 86.0MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:01:56,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.97ms. Allocated memory is still 159.4MB. Free memory was 123.9MB in the beginning and 133.7MB in the end (delta: -9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:01:56,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.47ms. Allocated memory is still 159.4MB. Free memory was 133.7MB in the beginning and 132.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:01:56,793 INFO L158 Benchmark]: Boogie Preprocessor took 30.05ms. Allocated memory is still 159.4MB. Free memory was 132.4MB in the beginning and 131.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:01:56,793 INFO L158 Benchmark]: RCFGBuilder took 313.99ms. Allocated memory is still 159.4MB. Free memory was 131.1MB in the beginning and 121.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 01:01:56,794 INFO L158 Benchmark]: TraceAbstraction took 290.20ms. Allocated memory is still 159.4MB. Free memory was 120.7MB in the beginning and 107.6MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-21 01:01:56,794 INFO L158 Benchmark]: Witness Printer took 36.11ms. Allocated memory is still 159.4MB. Free memory was 107.6MB in the beginning and 106.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:01:56,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 86.0MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.97ms. Allocated memory is still 159.4MB. Free memory was 123.9MB in the beginning and 133.7MB in the end (delta: -9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.47ms. Allocated memory is still 159.4MB. Free memory was 133.7MB in the beginning and 132.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.05ms. Allocated memory is still 159.4MB. Free memory was 132.4MB in the beginning and 131.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 313.99ms. Allocated memory is still 159.4MB. Free memory was 131.1MB in the beginning and 121.1MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 290.20ms. Allocated memory is still 159.4MB. Free memory was 120.7MB in the beginning and 107.6MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 36.11ms. Allocated memory is still 159.4MB. Free memory was 107.6MB in the beginning and 106.0MB in the end (delta: 1.6MB). There was no memory consumed. 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 - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(y>0 || x>0)) VAL [x=2147483647, y=1] [L23] COND TRUE __VERIFIER_nondet_bool() [L24] COND TRUE x>0 [L25] x++ VAL [x=2147483647, x++=2147483647, y=1] - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 RESULT: Ultimate proved your program to be incorrect! [2021-11-21 01:01:56,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d56c3ff7-fb51-432b-b6f5-58c4d5c726a0/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)