./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF --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 64bit --witnessprinter.graph.data.programhash d483d112ebc631f1c14642e780c42909cf25d334478fdf38ba7f61b34b8ee811 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:41:59,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:41:59,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:41:59,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:41:59,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:41:59,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:41:59,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:41:59,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:41:59,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:41:59,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:41:59,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:41:59,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:41:59,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:41:59,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:41:59,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:41:59,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:41:59,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:41:59,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:41:59,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:41:59,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:41:59,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:41:59,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:41:59,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:41:59,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:41:59,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:41:59,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:41:59,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:41:59,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:41:59,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:41:59,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:41:59,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:41:59,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:41:59,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:41:59,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:41:59,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:41:59,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:41:59,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:41:59,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:41:59,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:41:59,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:41:59,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:41:59,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-13 01:41:59,409 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:41:59,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:41:59,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:41:59,411 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:41:59,411 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:41:59,411 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:41:59,411 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:41:59,412 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:41:59,412 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:41:59,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:41:59,412 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:41:59,413 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:41:59,413 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:41:59,413 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:41:59,413 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:41:59,414 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:41:59,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:41:59,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:41:59,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:41:59,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:41:59,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:41:59,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:41:59,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:41:59,416 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 01:41:59,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:41:59,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:41:59,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:41:59,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:41:59,418 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:41:59,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:41:59,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:41:59,419 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:41:59,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:41:59,419 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:41:59,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:41:59,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:41:59,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:41:59,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:41:59,420 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_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d483d112ebc631f1c14642e780c42909cf25d334478fdf38ba7f61b34b8ee811 [2021-11-13 01:41:59,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:41:59,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:41:59,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:41:59,699 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:41:59,700 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:41:59,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2021-11-13 01:41:59,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/data/fbed00897/9178911ff1a04a1fb2068fc5c0891bbb/FLAGf59d92265 [2021-11-13 01:42:00,345 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:42:00,345 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2021-11-13 01:42:00,356 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/data/fbed00897/9178911ff1a04a1fb2068fc5c0891bbb/FLAGf59d92265 [2021-11-13 01:42:00,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/data/fbed00897/9178911ff1a04a1fb2068fc5c0891bbb [2021-11-13 01:42:00,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:42:00,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:42:00,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:00,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:42:00,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:42:00,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:00,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46da23c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00, skipping insertion in model container [2021-11-13 01:42:00,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:00,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:42:00,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:00,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:00,919 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:42:00,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:00,958 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:42:00,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00 WrapperNode [2021-11-13 01:42:00,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:00,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:42:00,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:42:00,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:42:00,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:00,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:00,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:42:01,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:42:01,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:42:01,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:42:01,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:01,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:01,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:01,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:01,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:01,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:01,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:01,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:42:01,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:42:01,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:42:01,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:42:01,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (1/1) ... [2021-11-13 01:42:01,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:01,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:42:01,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:42:01,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:42:01,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:42:01,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:42:01,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:42:01,290 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:42:01,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:42:01 BoogieIcfgContainer [2021-11-13 01:42:01,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:42:01,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:42:01,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:42:01,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:42:01,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:42:00" (1/3) ... [2021-11-13 01:42:01,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157bd39e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:42:01, skipping insertion in model container [2021-11-13 01:42:01,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:00" (2/3) ... [2021-11-13 01:42:01,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157bd39e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:42:01, skipping insertion in model container [2021-11-13 01:42:01,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:42:01" (3/3) ... [2021-11-13 01:42:01,302 INFO L111 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b.c [2021-11-13 01:42:01,307 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:42:01,308 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 01:42:01,355 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:42:01,362 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 [2021-11-13 01:42:01,363 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 01:42:01,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:42:01,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:01,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:42:01,383 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-13 01:42:01,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:01,389 INFO L85 PathProgramCache]: Analyzing trace with hash 62038925, now seen corresponding path program 1 times [2021-11-13 01:42:01,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:42:01,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911391613] [2021-11-13 01:42:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:01,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:42:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:01,626 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:42:01,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911391613] [2021-11-13 01:42:01,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911391613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:01,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:01,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 01:42:01,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147717602] [2021-11-13 01:42:01,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:01,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:42:01,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:42:01,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:42:01,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:42:01,689 INFO L87 Difference]: Start difference. First operand has 10 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-11-13 01:42:01,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:01,838 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2021-11-13 01:42:01,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:42:01,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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 [2021-11-13 01:42:01,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:01,848 INFO L225 Difference]: With dead ends: 23 [2021-11-13 01:42:01,848 INFO L226 Difference]: Without dead ends: 18 [2021-11-13 01:42:01,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:42:01,856 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 18 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.84ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.81ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:01,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 1 Invalid, 55 Unknown, 0 Unchecked, 1.84ms Time], IncrementalHoareTripleChecker [8 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 70.81ms Time] [2021-11-13 01:42:01,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-13 01:42:01,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-11-13 01:42:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2021-11-13 01:42:01,890 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 5 [2021-11-13 01:42:01,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:01,891 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-11-13 01:42:01,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2021-11-13 01:42:01,891 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-11-13 01:42:01,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:42:01,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:01,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:42:01,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:42:01,893 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-13 01:42:01,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:01,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1923206728, now seen corresponding path program 1 times [2021-11-13 01:42:01,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:42:01,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144973432] [2021-11-13 01:42:01,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:01,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:42:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:01,919 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:42:01,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144973432] [2021-11-13 01:42:01,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144973432] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:01,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:01,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 01:42:01,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730516717] [2021-11-13 01:42:01,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:01,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:42:01,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:42:01,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:42:01,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:42:01,924 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:01,937 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2021-11-13 01:42:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:42:01,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 01:42:01,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:01,939 INFO L225 Difference]: With dead ends: 17 [2021-11-13 01:42:01,939 INFO L226 Difference]: Without dead ends: 16 [2021-11-13 01:42:01,940 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 [2021-11-13 01:42:01,941 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.33ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.65ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:01,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1 Invalid, 9 Unknown, 0 Unchecked, 0.33ms Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 9.65ms Time] [2021-11-13 01:42:01,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-13 01:42:01,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-13 01:42:01,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-13 01:42:01,948 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 6 [2021-11-13 01:42:01,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:01,948 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-13 01:42:01,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:01,949 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-13 01:42:01,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 01:42:01,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:01,950 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-11-13 01:42:01,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:42:01,951 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-13 01:42:01,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:01,952 INFO L85 PathProgramCache]: Analyzing trace with hash -986581661, now seen corresponding path program 1 times [2021-11-13 01:42:01,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:42:01,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941476318] [2021-11-13 01:42:01,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:01,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:42:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:01,996 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:42:02,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941476318] [2021-11-13 01:42:02,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941476318] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 01:42:02,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813600552] [2021-11-13 01:42:02,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:02,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:42:02,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:42:02,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:42:02,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 01:42:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:02,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:42:02,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:02,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:02,198 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:42:02,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813600552] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:42:02,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1668431601] [2021-11-13 01:42:02,219 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-11-13 01:42:02,219 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 01:42:02,224 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 01:42:02,229 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 01:42:02,230 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 01:42:02,270 INFO L180 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-11-13 01:42:02,277 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:42:02,281 INFO L180 QuantifierPusher]: treesize reduction 9, result has 71.0 percent of original size [2021-11-13 01:42:02,285 INFO L185 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size 10 [2021-11-13 01:42:02,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,346 INFO L180 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-11-13 01:42:02,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 01:42:02,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,388 INFO L180 QuantifierPusher]: treesize reduction 9, result has 71.0 percent of original size [2021-11-13 01:42:02,392 INFO L185 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size 10 [2021-11-13 01:42:02,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 01:42:02,412 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 01:42:02,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1668431601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:02,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-13 01:42:02,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 9 [2021-11-13 01:42:02,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701208236] [2021-11-13 01:42:02,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:02,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:42:02,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:42:02,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:42:02,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:42:02,537 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:02,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:02,575 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2021-11-13 01:42:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:42:02,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-13 01:42:02,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:02,577 INFO L225 Difference]: With dead ends: 27 [2021-11-13 01:42:02,577 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:42:02,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:42:02,584 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.04ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.50ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:02,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 19 Unknown, 0 Unchecked, 2.04ms Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 25.50ms Time] [2021-11-13 01:42:02,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:42:02,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:42:02,591 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) [2021-11-13 01:42:02,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:42:02,592 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-11-13 01:42:02,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:02,592 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:42:02,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:42:02,593 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:42:02,593 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:42:02,601 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2021-11-13 01:42:02,603 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2021-11-13 01:42:02,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:42:02,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:42:02,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:42:02,887 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-11-13 01:42:02,887 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:42:02,887 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2021-11-13 01:42:02,888 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 25) no Hoare annotation was computed. [2021-11-13 01:42:02,888 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 18 24) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_~M~0#1|) (<= |ULTIMATE.start_main_~M~0#1| 2147483647)) [2021-11-13 01:42:02,888 INFO L854 garLoopResultBuilder]: At program point L17-1(lines 17 25) the Hoare annotation is: (or (< |ULTIMATE.start_main_~M~0#1| (+ |ULTIMATE.start_main_~x~0#1| 1)) (<= |ULTIMATE.start_main_~M~0#1| 2147483647)) [2021-11-13 01:42:02,888 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-11-13 01:42:02,888 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:42:02,889 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-11-13 01:42:02,889 INFO L858 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-11-13 01:42:02,892 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 01:42:02,894 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:42:02,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:42:02 BoogieIcfgContainer [2021-11-13 01:42:02,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:42:02,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:42:02,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:42:02,918 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:42:02,919 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:42:01" (3/4) ... [2021-11-13 01:42:02,922 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:42:02,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-13 01:42:02,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 01:42:02,933 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 01:42:02,973 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:42:02,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:42:02,975 INFO L158 Benchmark]: Toolchain (without parser) took 2254.87ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.6MB in the beginning and 45.2MB in the end (delta: 4.4MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2021-11-13 01:42:02,975 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 55.8MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:42:02,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.93ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.3MB in the beginning and 78.1MB in the end (delta: -28.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 01:42:02,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.99ms. Allocated memory is still 100.7MB. Free memory was 78.1MB in the beginning and 76.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:42:02,977 INFO L158 Benchmark]: Boogie Preprocessor took 27.47ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 76.0MB in the end (delta: 864.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:42:02,977 INFO L158 Benchmark]: RCFGBuilder took 264.06ms. Allocated memory is still 100.7MB. Free memory was 76.0MB in the beginning and 67.2MB in the end (delta: 8.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 01:42:02,978 INFO L158 Benchmark]: TraceAbstraction took 1622.57ms. Allocated memory is still 100.7MB. Free memory was 66.8MB in the beginning and 47.3MB in the end (delta: 19.5MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2021-11-13 01:42:02,979 INFO L158 Benchmark]: Witness Printer took 56.43ms. Allocated memory is still 100.7MB. Free memory was 47.3MB in the beginning and 45.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:42:02,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 55.8MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.93ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.3MB in the beginning and 78.1MB in the end (delta: -28.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.99ms. Allocated memory is still 100.7MB. Free memory was 78.1MB in the beginning and 76.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.47ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 76.0MB in the end (delta: 864.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 264.06ms. Allocated memory is still 100.7MB. Free memory was 76.0MB in the beginning and 67.2MB in the end (delta: 8.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1622.57ms. Allocated memory is still 100.7MB. Free memory was 66.8MB in the beginning and 47.3MB in the end (delta: 19.5MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Witness Printer took 56.43ms. Allocated memory is still 100.7MB. Free memory was 47.3MB in the beginning and 45.2MB in the end (delta: 2.1MB). 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 105.96ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 77.15ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 2 mSDtfsCounter, 69 mSolverCounterSat, 4.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=1, InterpolantAutomatonStates: 16, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 24 HoareAnnotationTreeSize, 2 FomulaSimplifications, 31 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 12/21 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: OVERALL_TIME: 194.21ms, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 7, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 13, TOOLS_POST_TIME: 37.51ms, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.00ms, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.00ms, TOOLS_QUANTIFIERELIM_APPLICATIONS: 13, TOOLS_QUANTIFIERELIM_TIME: 32.33ms, TOOLS_QUANTIFIERELIM_MAX_TIME: 11.99ms, FLUID_QUERY_TIME: 2.62ms, FLUID_QUERIES: 25, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 105.59ms, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.00ms, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.00ms, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 2.31ms, DOMAIN_ISBOTTOM_APPLICATIONS: 7, DOMAIN_ISBOTTOM_TIME: 5.65ms, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 78.32ms, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 78.20ms, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.00ms, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.00ms, PROCEDURE_GRAPH_BUILDER_TIME: 1.88ms, PATH_EXPR_TIME: 2.62ms, REGEX_TO_DAG_TIME: 3.05ms, DAG_COMPRESSION_TIME: 7.61ms, DAG_COMPRESSION_PROCESSED_NODES: 59, DAG_COMPRESSION_RETAINED_NODES: 27, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 0 <= x + 2147483648) && 0 <= M) && M <= 2147483647 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: M < x + 1 || M <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-13 01:42:03,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f23492b-58d7-4c19-bd22-78fe57cd2c73/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE