./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7 --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 fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:37:36,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:37:36,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:37:36,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:37:36,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:37:36,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:37:36,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:37:36,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:37:36,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:37:36,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:37:36,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:37:36,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:37:36,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:37:36,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:37:36,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:37:36,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:37:36,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:37:36,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:37:36,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:37:36,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:37:36,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:37:36,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:37:36,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:37:36,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:37:36,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:37:36,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:37:36,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:37:36,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:37:36,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:37:36,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:37:36,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:37:36,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:37:36,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:37:36,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:37:36,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:37:36,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:37:36,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:37:36,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:37:36,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:37:36,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:37:36,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:37:36,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-25 18:37:36,508 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:37:36,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:37:36,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:37:36,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:37:36,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:37:36,511 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:37:36,511 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:37:36,511 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:37:36,511 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:37:36,511 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:37:36,512 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:37:36,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:37:36,512 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:37:36,512 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:37:36,513 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:37:36,513 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:37:36,513 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:37:36,513 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:37:36,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:37:36,514 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 18:37:36,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:37:36,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:37:36,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:37:36,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:37:36,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:37:36,516 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 18:37:36,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:37:36,516 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:37:36,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:37:36,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:37:36,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:37:36,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:37:36,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:37:36,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:37:36,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:37:36,530 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:37:36,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:37:36,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:37:36,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:37:36,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:37:36,531 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_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 [2021-11-25 18:37:36,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:37:36,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:37:36,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:37:36,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:37:36,804 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:37:36,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2021-11-25 18:37:36,908 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/data/66fbedf43/0d48587c6e4e4d0983bcdfed6e68cb04/FLAG9fb8c57de [2021-11-25 18:37:37,494 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:37:37,495 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2021-11-25 18:37:37,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/data/66fbedf43/0d48587c6e4e4d0983bcdfed6e68cb04/FLAG9fb8c57de [2021-11-25 18:37:37,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/data/66fbedf43/0d48587c6e4e4d0983bcdfed6e68cb04 [2021-11-25 18:37:37,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:37:37,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:37:37,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:37:37,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:37:37,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:37:37,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:37:37" (1/1) ... [2021-11-25 18:37:37,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc5567e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:37, skipping insertion in model container [2021-11-25 18:37:37,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:37:37" (1/1) ... [2021-11-25 18:37:37,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:37:37,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:37:38,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:37:38,121 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:37:38,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:37:38,158 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:37:38,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38 WrapperNode [2021-11-25 18:37:38,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:37:38,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:37:38,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:37:38,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:37:38,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (1/1) ... [2021-11-25 18:37:38,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (1/1) ... [2021-11-25 18:37:38,209 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2021-11-25 18:37:38,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:37:38,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:37:38,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:37:38,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:37:38,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (1/1) ... [2021-11-25 18:37:38,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (1/1) ... [2021-11-25 18:37:38,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (1/1) ... [2021-11-25 18:37:38,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (1/1) ... [2021-11-25 18:37:38,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (1/1) ... [2021-11-25 18:37:38,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (1/1) ... [2021-11-25 18:37:38,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (1/1) ... [2021-11-25 18:37:38,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:37:38,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:37:38,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:37:38,255 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:37:38,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (1/1) ... [2021-11-25 18:37:38,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:37:38,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:37:38,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:37:38,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:37:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:37:38,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:37:38,426 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:37:38,430 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:37:38,555 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:37:38,573 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:37:38,574 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 18:37:38,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:37:38 BoogieIcfgContainer [2021-11-25 18:37:38,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:37:38,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:37:38,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:37:38,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:37:38,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:37:37" (1/3) ... [2021-11-25 18:37:38,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7951d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:37:38, skipping insertion in model container [2021-11-25 18:37:38,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:37:38" (2/3) ... [2021-11-25 18:37:38,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7951d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:37:38, skipping insertion in model container [2021-11-25 18:37:38,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:37:38" (3/3) ... [2021-11-25 18:37:38,586 INFO L111 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2021-11-25 18:37:38,591 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:37:38,592 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-25 18:37:38,650 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:37:38,660 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 [2021-11-25 18:37:38,661 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-25 18:37:38,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 states have internal predecessors, (25), 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) [2021-11-25 18:37:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 18:37:38,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:38,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 18:37:38,688 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-25 18:37:38,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:38,697 INFO L85 PathProgramCache]: Analyzing trace with hash 76993943, now seen corresponding path program 1 times [2021-11-25 18:37:38,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:38,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668555922] [2021-11-25 18:37:38,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:38,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:38,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:37:38,869 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:38,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668555922] [2021-11-25 18:37:38,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668555922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:38,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:37:38,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 18:37:38,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474926351] [2021-11-25 18:37:38,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:38,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:37:38,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:38,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:37:38,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:37:38,910 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 21 states have internal predecessors, (25), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:37:38,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:37:38,979 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-11-25 18:37:38,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:37:38,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 18:37:38,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:37:38,992 INFO L225 Difference]: With dead ends: 33 [2021-11-25 18:37:38,992 INFO L226 Difference]: Without dead ends: 30 [2021-11-25 18:37:38,995 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 [2021-11-25 18:37:38,999 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:37:39,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 19 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:37:39,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-25 18:37:39,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-11-25 18:37:39,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.8) internal successors, (36), 27 states have internal predecessors, (36), 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) [2021-11-25 18:37:39,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-11-25 18:37:39,111 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2021-11-25 18:37:39,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:39,112 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-11-25 18:37:39,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:37:39,112 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2021-11-25 18:37:39,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 18:37:39,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:39,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 18:37:39,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:37:39,114 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-25 18:37:39,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:39,115 INFO L85 PathProgramCache]: Analyzing trace with hash 76994135, now seen corresponding path program 1 times [2021-11-25 18:37:39,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:39,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426152193] [2021-11-25 18:37:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:39,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:37:39,175 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:39,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426152193] [2021-11-25 18:37:39,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426152193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:39,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:37:39,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 18:37:39,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108230916] [2021-11-25 18:37:39,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:39,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:37:39,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:39,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:37:39,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:37:39,180 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:37:39,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:37:39,218 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2021-11-25 18:37:39,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:37:39,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-25 18:37:39,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:37:39,220 INFO L225 Difference]: With dead ends: 28 [2021-11-25 18:37:39,221 INFO L226 Difference]: Without dead ends: 26 [2021-11-25 18:37:39,221 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 [2021-11-25 18:37:39,224 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:37:39,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 14 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:37:39,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-25 18:37:39,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-25 18:37:39,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 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) [2021-11-25 18:37:39,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-11-25 18:37:39,233 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 5 [2021-11-25 18:37:39,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:39,234 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-11-25 18:37:39,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:37:39,234 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-11-25 18:37:39,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 18:37:39,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:39,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-25 18:37:39,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:37:39,236 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-25 18:37:39,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash 77009831, now seen corresponding path program 1 times [2021-11-25 18:37:39,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:39,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903250644] [2021-11-25 18:37:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:39,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:37:39,268 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:39,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903250644] [2021-11-25 18:37:39,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903250644] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:39,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:37:39,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:37:39,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685310947] [2021-11-25 18:37:39,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:39,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:37:39,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:39,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:37:39,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:37:39,272 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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) [2021-11-25 18:37:39,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:37:39,315 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2021-11-25 18:37:39,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:37:39,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2021-11-25 18:37:39,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:37:39,317 INFO L225 Difference]: With dead ends: 26 [2021-11-25 18:37:39,317 INFO L226 Difference]: Without dead ends: 25 [2021-11-25 18:37:39,318 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 [2021-11-25 18:37:39,320 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:37:39,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 22 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:37:39,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-25 18:37:39,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-25 18:37:39,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.6) internal successors, (32), 24 states have internal predecessors, (32), 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) [2021-11-25 18:37:39,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-11-25 18:37:39,328 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 5 [2021-11-25 18:37:39,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:39,329 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-11-25 18:37:39,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2021-11-25 18:37:39,330 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2021-11-25 18:37:39,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 18:37:39,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:39,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 18:37:39,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:37:39,346 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-25 18:37:39,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:39,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1908155012, now seen corresponding path program 1 times [2021-11-25 18:37:39,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:39,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250533058] [2021-11-25 18:37:39,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:39,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:39,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:37:39,392 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:39,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250533058] [2021-11-25 18:37:39,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250533058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:39,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:37:39,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:37:39,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657671460] [2021-11-25 18:37:39,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:39,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:37:39,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:39,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:37:39,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:37:39,400 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:37:39,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:37:39,467 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2021-11-25 18:37:39,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:37:39,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 18:37:39,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:37:39,469 INFO L225 Difference]: With dead ends: 52 [2021-11-25 18:37:39,470 INFO L226 Difference]: Without dead ends: 28 [2021-11-25 18:37:39,470 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 [2021-11-25 18:37:39,473 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:37:39,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 20 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:37:39,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-25 18:37:39,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-25 18:37:39,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 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) [2021-11-25 18:37:39,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-11-25 18:37:39,485 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 6 [2021-11-25 18:37:39,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:39,486 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-11-25 18:37:39,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:37:39,486 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2021-11-25 18:37:39,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 18:37:39,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:39,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 18:37:39,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:37:39,488 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-25 18:37:39,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:39,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1908149054, now seen corresponding path program 1 times [2021-11-25 18:37:39,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:39,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513719650] [2021-11-25 18:37:39,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:39,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:39,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:37:39,532 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:39,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513719650] [2021-11-25 18:37:39,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513719650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:39,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:37:39,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:37:39,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355207988] [2021-11-25 18:37:39,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:39,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:37:39,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:39,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:37:39,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:37:39,536 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:37:39,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:37:39,556 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-11-25 18:37:39,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:37:39,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 18:37:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:37:39,558 INFO L225 Difference]: With dead ends: 29 [2021-11-25 18:37:39,558 INFO L226 Difference]: Without dead ends: 27 [2021-11-25 18:37:39,559 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 [2021-11-25 18:37:39,560 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:37:39,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 13 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:37:39,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-25 18:37:39,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-11-25 18:37:39,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 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) [2021-11-25 18:37:39,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2021-11-25 18:37:39,567 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 6 [2021-11-25 18:37:39,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:39,568 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2021-11-25 18:37:39,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:37:39,568 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2021-11-25 18:37:39,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 18:37:39,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:39,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 18:37:39,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:37:39,570 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-25 18:37:39,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:39,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1907662468, now seen corresponding path program 1 times [2021-11-25 18:37:39,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:39,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091205106] [2021-11-25 18:37:39,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:39,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:37:39,594 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:39,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091205106] [2021-11-25 18:37:39,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091205106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:39,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:37:39,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 18:37:39,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484361508] [2021-11-25 18:37:39,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:39,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:37:39,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:39,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:37:39,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:37:39,597 INFO L87 Difference]: Start difference. First operand 26 states and 31 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) [2021-11-25 18:37:39,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:37:39,614 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2021-11-25 18:37:39,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:37:39,615 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 [2021-11-25 18:37:39,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:37:39,615 INFO L225 Difference]: With dead ends: 26 [2021-11-25 18:37:39,615 INFO L226 Difference]: Without dead ends: 25 [2021-11-25 18:37:39,616 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 [2021-11-25 18:37:39,617 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:37:39,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 8 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:37:39,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-25 18:37:39,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-25 18:37:39,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 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) [2021-11-25 18:37:39,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2021-11-25 18:37:39,624 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2021-11-25 18:37:39,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:39,625 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2021-11-25 18:37:39,625 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) [2021-11-25 18:37:39,625 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-11-25 18:37:39,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 18:37:39,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:39,626 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:37:39,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:37:39,627 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-25 18:37:39,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:39,628 INFO L85 PathProgramCache]: Analyzing trace with hash -828796479, now seen corresponding path program 1 times [2021-11-25 18:37:39,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:39,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300871827] [2021-11-25 18:37:39,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:39,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:39,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:37:39,706 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:39,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300871827] [2021-11-25 18:37:39,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300871827] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:37:39,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899188768] [2021-11-25 18:37:39,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:39,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:37:39,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:37:39,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:37:39,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:37:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:39,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 18:37:39,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:37:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:37:39,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:37:39,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899188768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:39,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:37:39,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-25 18:37:39,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134968315] [2021-11-25 18:37:39,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:39,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:37:39,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:39,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:37:39,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:37:39,866 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2021-11-25 18:37:39,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:37:39,931 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2021-11-25 18:37:39,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:37:39,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) Word has length 10 [2021-11-25 18:37:39,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:37:39,934 INFO L225 Difference]: With dead ends: 50 [2021-11-25 18:37:39,934 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 18:37:39,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:37:39,943 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:37:39,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 25 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:37:39,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 18:37:39,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 18:37:39,945 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) [2021-11-25 18:37:39,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 18:37:39,945 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-11-25 18:37:39,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:39,945 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 18:37:39,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2021-11-25 18:37:39,946 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 18:37:39,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 18:37:39,949 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2021-11-25 18:37:39,949 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2021-11-25 18:37:39,949 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2021-11-25 18:37:39,950 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2021-11-25 18:37:39,950 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2021-11-25 18:37:39,950 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2021-11-25 18:37:39,950 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2021-11-25 18:37:39,951 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2021-11-25 18:37:39,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:37:40,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:37:40,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 18:37:40,220 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-11-25 18:37:40,220 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 18:37:40,221 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-25 18:37:40,221 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-11-25 18:37:40,221 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 32) no Hoare annotation was computed. [2021-11-25 18:37:40,222 INFO L854 garLoopResultBuilder]: At program point L27-2(lines 18 34) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2021-11-25 18:37:40,222 INFO L858 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-11-25 18:37:40,222 INFO L858 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-11-25 18:37:40,222 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 33) no Hoare annotation was computed. [2021-11-25 18:37:40,223 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-11-25 18:37:40,223 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-11-25 18:37:40,224 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-11-25 18:37:40,225 INFO L858 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2021-11-25 18:37:40,229 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 18:37:40,229 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2021-11-25 18:37:40,230 INFO L858 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2021-11-25 18:37:40,230 INFO L858 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-11-25 18:37:40,231 INFO L858 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-11-25 18:37:40,232 INFO L858 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-11-25 18:37:40,232 INFO L858 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-11-25 18:37:40,232 INFO L858 garLoopResultBuilder]: For program point L20(lines 20 25) no Hoare annotation was computed. [2021-11-25 18:37:40,233 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2021-11-25 18:37:40,245 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:37:40,250 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:37:40,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:37:40 BoogieIcfgContainer [2021-11-25 18:37:40,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:37:40,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:37:40,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:37:40,269 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:37:40,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:37:38" (3/4) ... [2021-11-25 18:37:40,273 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 18:37:40,284 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-25 18:37:40,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-25 18:37:40,285 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 18:37:40,324 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:37:40,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:37:40,326 INFO L158 Benchmark]: Toolchain (without parser) took 2482.98ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 48.1MB in the beginning and 54.3MB in the end (delta: -6.3MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2021-11-25 18:37:40,326 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 75.5MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:37:40,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.90ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 47.8MB in the beginning and 87.4MB in the end (delta: -39.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:37:40,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.73ms. Allocated memory is still 113.2MB. Free memory was 87.4MB in the beginning and 85.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:37:40,328 INFO L158 Benchmark]: Boogie Preprocessor took 42.69ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 85.0MB in the end (delta: 946.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:37:40,328 INFO L158 Benchmark]: RCFGBuilder took 321.95ms. Allocated memory is still 113.2MB. Free memory was 85.0MB in the beginning and 75.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:37:40,329 INFO L158 Benchmark]: TraceAbstraction took 1689.45ms. Allocated memory is still 113.2MB. Free memory was 75.0MB in the beginning and 56.5MB in the end (delta: 18.5MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2021-11-25 18:37:40,330 INFO L158 Benchmark]: Witness Printer took 56.46ms. Allocated memory is still 113.2MB. Free memory was 56.5MB in the beginning and 54.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:37:40,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 75.5MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.90ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 47.8MB in the beginning and 87.4MB in the end (delta: -39.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.73ms. Allocated memory is still 113.2MB. Free memory was 87.4MB in the beginning and 85.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.69ms. Allocated memory is still 113.2MB. Free memory was 85.9MB in the beginning and 85.0MB in the end (delta: 946.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 321.95ms. Allocated memory is still 113.2MB. Free memory was 85.0MB in the beginning and 75.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1689.45ms. Allocated memory is still 113.2MB. Free memory was 75.0MB in the beginning and 56.5MB in the end (delta: 18.5MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Witness Printer took 56.46ms. Allocated memory is still 113.2MB. Free memory was 56.5MB in the beginning and 54.3MB 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: 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, 22 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 121 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 98 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 1 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 45 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 0 <= x + 2147483648) && y <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-11-25 18:37:40,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059dc813-4630-4c8b-a4e9-8d7db9c6f236/bin/utaipan-eEHZpOm5b7/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