./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V --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 5cc55b361d4f01def0eda607149a19c4785fee68e7824d0210bdec8ce7b04371 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:37:54,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:37:54,207 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:37:54,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:37:54,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:37:54,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:37:54,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:37:54,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:37:54,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:37:54,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:37:54,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:37:54,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:37:54,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:37:54,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:37:54,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:37:54,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:37:54,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:37:54,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:37:54,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:37:54,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:37:54,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:37:54,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:37:54,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:37:54,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:37:54,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:37:54,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:37:54,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:37:54,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:37:54,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:37:54,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:37:54,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:37:54,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:37:54,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:37:54,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:37:54,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:37:54,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:37:54,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:37:54,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:37:54,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:37:54,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:37:54,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:37:54,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-23 03:37:54,405 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:37:54,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:37:54,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:37:54,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:37:54,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:37:54,408 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:37:54,409 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:37:54,409 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:37:54,409 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:37:54,410 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:37:54,411 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:37:54,411 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:37:54,411 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:37:54,411 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:37:54,411 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:37:54,412 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:37:54,412 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:37:54,412 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:37:54,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:37:54,413 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 03:37:54,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:37:54,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:37:54,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:37:54,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:37:54,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:37:54,414 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 03:37:54,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:37:54,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:37:54,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:37:54,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:37:54,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:37:54,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:37:54,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:37:54,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:37:54,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:37:54,416 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:37:54,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:37:54,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:37:54,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:37:54,417 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:37:54,417 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_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cc55b361d4f01def0eda607149a19c4785fee68e7824d0210bdec8ce7b04371 [2021-11-23 03:37:54,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:37:54,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:37:54,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:37:54,743 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:37:54,744 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:37:54,745 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2021-11-23 03:37:54,826 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/data/b8623d6e5/3788b939f8ca4331997548ae9a3626c4/FLAG9d1ca9547 [2021-11-23 03:37:55,319 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:37:55,320 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2021-11-23 03:37:55,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/data/b8623d6e5/3788b939f8ca4331997548ae9a3626c4/FLAG9d1ca9547 [2021-11-23 03:37:55,734 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/data/b8623d6e5/3788b939f8ca4331997548ae9a3626c4 [2021-11-23 03:37:55,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:37:55,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:37:55,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:37:55,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:37:55,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:37:55,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:55,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793af3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55, skipping insertion in model container [2021-11-23 03:37:55,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:55,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:37:55,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:37:55,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:37:55,925 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:37:55,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:37:55,949 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:37:55,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55 WrapperNode [2021-11-23 03:37:55,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:37:55,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:37:55,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:37:55,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:37:55,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:55,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:55,983 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2021-11-23 03:37:55,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:37:55,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:37:55,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:37:55,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:37:55,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:55,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:55,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:55,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:55,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:56,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:56,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:56,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:37:56,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:37:56,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:37:56,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:37:56,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (1/1) ... [2021-11-23 03:37:56,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:37:56,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:37:56,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:37:56,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:37:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:37:56,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:37:56,184 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:37:56,186 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:37:56,256 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:37:56,272 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:37:56,272 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 03:37:56,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:37:56 BoogieIcfgContainer [2021-11-23 03:37:56,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:37:56,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:37:56,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:37:56,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:37:56,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:37:55" (1/3) ... [2021-11-23 03:37:56,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b01454a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:37:56, skipping insertion in model container [2021-11-23 03:37:56,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:37:55" (2/3) ... [2021-11-23 03:37:56,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b01454a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:37:56, skipping insertion in model container [2021-11-23 03:37:56,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:37:56" (3/3) ... [2021-11-23 03:37:56,282 INFO L111 eAbstractionObserver]: Analyzing ICFG Bangalore_v4.c [2021-11-23 03:37:56,287 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:37:56,287 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 03:37:56,338 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:37:56,346 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 [2021-11-23 03:37:56,346 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 03:37:56,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:37:56,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 03:37:56,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:37:56,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 03:37:56,367 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-23 03:37:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:37:56,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1822505, now seen corresponding path program 1 times [2021-11-23 03:37:56,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:37:56,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332024911] [2021-11-23 03:37:56,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:37:56,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:37:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:37:56,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:37:56,516 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:37:56,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332024911] [2021-11-23 03:37:56,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332024911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:37:56,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:37:56,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:37:56,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971785601] [2021-11-23 03:37:56,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:37:56,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:37:56,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:37:56,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:37:56,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:37:56,555 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:37:56,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:37:56,599 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-23 03:37:56,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:37:56,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-23 03:37:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:37:56,609 INFO L225 Difference]: With dead ends: 15 [2021-11-23 03:37:56,609 INFO L226 Difference]: Without dead ends: 10 [2021-11-23 03:37:56,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:37:56,616 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:37:56,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:37:56,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-23 03:37:56,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2021-11-23 03:37:56,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:37:56,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-11-23 03:37:56,650 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2021-11-23 03:37:56,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:37:56,650 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-11-23 03:37:56,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:37:56,651 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-11-23 03:37:56,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 03:37:56,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:37:56,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 03:37:56,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:37:56,652 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-23 03:37:56,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:37:56,653 INFO L85 PathProgramCache]: Analyzing trace with hash 56497703, now seen corresponding path program 1 times [2021-11-23 03:37:56,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:37:56,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019358085] [2021-11-23 03:37:56,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:37:56,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:37:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:37:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:37:56,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:37:56,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019358085] [2021-11-23 03:37:56,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019358085] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:37:56,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:37:56,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:37:56,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733328449] [2021-11-23 03:37:56,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:37:56,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:37:56,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:37:56,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:37:56,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:37:56,691 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2021-11-23 03:37:56,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:37:56,735 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2021-11-23 03:37:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:37:56,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 [2021-11-23 03:37:56,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:37:56,736 INFO L225 Difference]: With dead ends: 9 [2021-11-23 03:37:56,736 INFO L226 Difference]: Without dead ends: 8 [2021-11-23 03:37:56,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:37:56,739 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:37:56,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:37:56,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-23 03:37:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-23 03:37:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:37:56,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-23 03:37:56,744 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2021-11-23 03:37:56,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:37:56,745 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-23 03:37:56,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2021-11-23 03:37:56,745 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-23 03:37:56,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 03:37:56,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:37:56,746 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-11-23 03:37:56,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:37:56,747 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-11-23 03:37:56,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:37:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1540280855, now seen corresponding path program 1 times [2021-11-23 03:37:56,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:37:56,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28810774] [2021-11-23 03:37:56,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:37:56,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:37:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:37:56,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:37:56,803 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:37:56,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28810774] [2021-11-23 03:37:56,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28810774] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:37:56,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821378230] [2021-11-23 03:37:56,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:37:56,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:37:56,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:37:56,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:37:56,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:37:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:37:56,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:37:56,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:37:56,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:37:56,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:37:57,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:37:57,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821378230] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:37:57,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1981834043] [2021-11-23 03:37:57,041 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-11-23 03:37:57,042 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:37:57,048 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:37:57,055 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:37:57,059 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:37:57,191 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:37:57,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1981834043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:37:57,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:37:57,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4, 4] total 9 [2021-11-23 03:37:57,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931554848] [2021-11-23 03:37:57,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:37:57,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:37:57,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:37:57,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:37:57,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:37:57,332 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2021-11-23 03:37:57,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:37:57,343 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-11-23 03:37:57,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:37:57,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 7 [2021-11-23 03:37:57,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:37:57,344 INFO L225 Difference]: With dead ends: 8 [2021-11-23 03:37:57,344 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:37:57,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:37:57,349 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:37:57,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:37:57,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:37:57,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:37:57,352 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) [2021-11-23 03:37:57,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:37:57,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-11-23 03:37:57,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:37:57,353 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:37:57,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2021-11-23 03:37:57,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:37:57,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:37:57,356 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2021-11-23 03:37:57,358 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2021-11-23 03:37:57,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:37:57,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:37:57,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:37:57,587 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-11-23 03:37:57,587 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:37:57,588 INFO L854 garLoopResultBuilder]: At program point L17-2(lines 17 19) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_main_~x~0#1| 1) |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2021-11-23 03:37:57,588 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2021-11-23 03:37:57,588 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 03:37:57,589 INFO L858 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2021-11-23 03:37:57,589 INFO L858 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-11-23 03:37:57,589 INFO L858 garLoopResultBuilder]: For program point L16(lines 16 20) no Hoare annotation was computed. [2021-11-23 03:37:57,589 INFO L861 garLoopResultBuilder]: At program point L16-1(lines 16 20) the Hoare annotation is: true [2021-11-23 03:37:57,593 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 03:37:57,594 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:37:57,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:37:57 BoogieIcfgContainer [2021-11-23 03:37:57,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:37:57,612 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:37:57,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:37:57,613 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:37:57,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:37:56" (3/4) ... [2021-11-23 03:37:57,616 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:37:57,625 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-23 03:37:57,625 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 03:37:57,626 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 03:37:57,655 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:37:57,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:37:57,656 INFO L158 Benchmark]: Toolchain (without parser) took 1918.40ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 78.1MB in the beginning and 121.9MB in the end (delta: -43.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:37:57,657 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:37:57,657 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.22ms. Allocated memory is still 119.5MB. Free memory was 77.9MB in the beginning and 94.0MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 03:37:57,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.62ms. Allocated memory is still 119.5MB. Free memory was 94.0MB in the beginning and 92.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:37:57,658 INFO L158 Benchmark]: Boogie Preprocessor took 18.65ms. Allocated memory is still 119.5MB. Free memory was 92.8MB in the beginning and 91.9MB in the end (delta: 912.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:37:57,659 INFO L158 Benchmark]: RCFGBuilder took 270.76ms. Allocated memory is still 119.5MB. Free memory was 91.9MB in the beginning and 82.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:37:57,659 INFO L158 Benchmark]: TraceAbstraction took 1334.91ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 82.4MB in the beginning and 124.0MB in the end (delta: -41.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:37:57,660 INFO L158 Benchmark]: Witness Printer took 43.36ms. Allocated memory is still 155.2MB. Free memory was 124.0MB in the beginning and 121.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:37:57,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.22ms. Allocated memory is still 119.5MB. Free memory was 77.9MB in the beginning and 94.0MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.62ms. Allocated memory is still 119.5MB. Free memory was 94.0MB in the beginning and 92.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.65ms. Allocated memory is still 119.5MB. Free memory was 92.8MB in the beginning and 91.9MB in the end (delta: 912.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.76ms. Allocated memory is still 119.5MB. Free memory was 91.9MB in the beginning and 82.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1334.91ms. Allocated memory was 119.5MB in the beginning and 155.2MB in the end (delta: 35.7MB). Free memory was 82.4MB in the beginning and 124.0MB in the end (delta: -41.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.36ms. Allocated memory is still 155.2MB. Free memory was 124.0MB in the beginning and 121.9MB 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 4 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 3 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 SizeOfPredicates, 2 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/6 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: 0.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 7, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME: 0.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 9, TOOLS_QUANTIFIERELIM_TIME: 0.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 20, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 1, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 7, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 55, DAG_COMPRESSION_RETAINED_NODES: 22, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (x + 1 <= y && 0 <= x + 2147483648) && y <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-23 03:37:57,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90fef5e-f912-4717-9316-f22756af61b2/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE