./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/diff-2-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/diff-2-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb0d07e46dc94102f1a204dcfe0d8cca3d45653b0db7cea07d03c16ba8563271 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:06:35,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:06:35,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:06:35,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:06:35,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:06:35,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:06:35,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:06:35,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:06:35,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:06:35,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:06:35,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:06:35,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:06:35,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:06:35,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:06:35,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:06:35,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:06:35,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:06:35,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:06:35,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:06:35,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:06:35,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:06:35,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:06:35,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:06:35,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:06:35,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:06:35,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:06:35,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:06:35,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:06:35,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:06:35,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:06:35,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:06:35,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:06:35,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:06:35,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:06:35,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:06:35,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:06:35,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:06:35,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:06:35,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:06:35,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:06:35,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:06:35,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:06:35,452 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:06:35,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:06:35,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:06:35,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:06:35,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:06:35,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:06:35,457 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:06:35,457 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:06:35,458 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:06:35,458 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:06:35,460 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:06:35,460 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:06:35,461 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:06:35,461 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:06:35,461 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:06:35,462 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:06:35,462 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:06:35,463 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:06:35,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:06:35,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:06:35,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:06:35,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:06:35,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:06:35,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:06:35,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:06:35,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:06:35,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:06:35,469 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:06:35,469 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:06:35,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:06:35,470 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:06:35,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:06:35,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:06:35,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:06:35,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:06:35,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:06:35,473 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:06:35,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:06:35,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:06:35,474 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:06:35,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:06:35,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:06:35,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:06:35,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb0d07e46dc94102f1a204dcfe0d8cca3d45653b0db7cea07d03c16ba8563271 [2022-11-19 07:06:35,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:06:35,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:06:35,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:06:35,939 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:06:35,940 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:06:35,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/array-multidimensional/diff-2-n-u.c [2022-11-19 07:06:36,049 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/data/ea7d8a72c/4d2d24a0295b4583985b90dc017bf308/FLAG982f50586 [2022-11-19 07:06:36,722 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:06:36,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/sv-benchmarks/c/array-multidimensional/diff-2-n-u.c [2022-11-19 07:06:36,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/data/ea7d8a72c/4d2d24a0295b4583985b90dc017bf308/FLAG982f50586 [2022-11-19 07:06:37,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/data/ea7d8a72c/4d2d24a0295b4583985b90dc017bf308 [2022-11-19 07:06:37,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:06:37,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:06:37,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:06:37,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:06:37,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:06:37,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a3a2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37, skipping insertion in model container [2022-11-19 07:06:37,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:06:37,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:06:37,382 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/sv-benchmarks/c/array-multidimensional/diff-2-n-u.c[322,335] [2022-11-19 07:06:37,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:06:37,469 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:06:37,494 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/sv-benchmarks/c/array-multidimensional/diff-2-n-u.c[322,335] [2022-11-19 07:06:37,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:06:37,553 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:06:37,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37 WrapperNode [2022-11-19 07:06:37,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:06:37,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:06:37,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:06:37,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:06:37,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,636 INFO L138 Inliner]: procedures = 14, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 125 [2022-11-19 07:06:37,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:06:37,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:06:37,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:06:37,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:06:37,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,686 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:06:37,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:06:37,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:06:37,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:06:37,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (1/1) ... [2022-11-19 07:06:37,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:06:37,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:06:37,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:06:37,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:06:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:06:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:06:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:06:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:06:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:06:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:06:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:06:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:06:37,930 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:06:37,933 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:06:38,301 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:06:38,420 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:06:38,420 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 07:06:38,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:38 BoogieIcfgContainer [2022-11-19 07:06:38,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:06:38,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:06:38,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:06:38,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:06:38,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:06:37" (1/3) ... [2022-11-19 07:06:38,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ca5c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:06:38, skipping insertion in model container [2022-11-19 07:06:38,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:06:37" (2/3) ... [2022-11-19 07:06:38,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57ca5c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:06:38, skipping insertion in model container [2022-11-19 07:06:38,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:38" (3/3) ... [2022-11-19 07:06:38,462 INFO L112 eAbstractionObserver]: Analyzing ICFG diff-2-n-u.c [2022-11-19 07:06:38,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:06:38,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-19 07:06:38,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:06:38,583 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6536ce48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:06:38,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-19 07:06:38,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.96) internal successors, (49), 41 states have internal predecessors, (49), 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) [2022-11-19 07:06:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:06:38,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:38,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:06:38,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-19 07:06:38,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:38,610 INFO L85 PathProgramCache]: Analyzing trace with hash 5377970, now seen corresponding path program 1 times [2022-11-19 07:06:38,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:38,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767020514] [2022-11-19 07:06:38,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:38,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:38,780 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:06:38,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741607264] [2022-11-19 07:06:38,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:38,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:38,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:06:38,814 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:06:38,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:06:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:38,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:06:39,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:06:39,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:39,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:06:39,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:39,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767020514] [2022-11-19 07:06:39,063 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:06:39,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741607264] [2022-11-19 07:06:39,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741607264] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:39,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:06:39,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:06:39,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061802010] [2022-11-19 07:06:39,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:39,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:06:39,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:39,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:06:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:39,172 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.96) internal successors, (49), 41 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:06:39,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:39,359 INFO L93 Difference]: Finished difference Result 79 states and 97 transitions. [2022-11-19 07:06:39,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:06:39,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 07:06:39,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:39,376 INFO L225 Difference]: With dead ends: 79 [2022-11-19 07:06:39,377 INFO L226 Difference]: Without dead ends: 73 [2022-11-19 07:06:39,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:39,387 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 35 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:39,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 36 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:06:39,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-19 07:06:39,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2022-11-19 07:06:39,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 45 states have (on average 1.8444444444444446) internal successors, (83), 60 states have internal predecessors, (83), 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) [2022-11-19 07:06:39,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 83 transitions. [2022-11-19 07:06:39,444 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 83 transitions. Word has length 4 [2022-11-19 07:06:39,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:39,445 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 83 transitions. [2022-11-19 07:06:39,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:06:39,445 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 83 transitions. [2022-11-19 07:06:39,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:06:39,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:39,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:06:39,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:39,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:39,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-19 07:06:39,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:39,659 INFO L85 PathProgramCache]: Analyzing trace with hash 5373592, now seen corresponding path program 1 times [2022-11-19 07:06:39,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:39,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367875672] [2022-11-19 07:06:39,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:39,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:39,693 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:06:39,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2135176801] [2022-11-19 07:06:39,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:39,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:39,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:06:39,708 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:06:39,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:06:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:39,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:06:39,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:06:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:39,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:06:39,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:39,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367875672] [2022-11-19 07:06:39,853 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:06:39,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135176801] [2022-11-19 07:06:39,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135176801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:39,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:06:39,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:06:39,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540155581] [2022-11-19 07:06:39,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:39,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:06:39,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:39,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:06:39,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:39,858 INFO L87 Difference]: Start difference. First operand 61 states and 83 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:06:40,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:40,054 INFO L93 Difference]: Finished difference Result 113 states and 158 transitions. [2022-11-19 07:06:40,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:06:40,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 07:06:40,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:40,061 INFO L225 Difference]: With dead ends: 113 [2022-11-19 07:06:40,062 INFO L226 Difference]: Without dead ends: 109 [2022-11-19 07:06:40,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:40,068 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 31 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:40,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 40 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:06:40,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-19 07:06:40,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 77. [2022-11-19 07:06:40,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 61 states have (on average 1.7540983606557377) internal successors, (107), 76 states have internal predecessors, (107), 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) [2022-11-19 07:06:40,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 107 transitions. [2022-11-19 07:06:40,101 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 107 transitions. Word has length 4 [2022-11-19 07:06:40,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:40,102 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 107 transitions. [2022-11-19 07:06:40,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:06:40,102 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 107 transitions. [2022-11-19 07:06:40,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:06:40,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:40,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:06:40,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:40,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-19 07:06:40,320 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-19 07:06:40,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:40,322 INFO L85 PathProgramCache]: Analyzing trace with hash 166717131, now seen corresponding path program 1 times [2022-11-19 07:06:40,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:40,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010083909] [2022-11-19 07:06:40,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:40,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:40,347 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:06:40,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327323457] [2022-11-19 07:06:40,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:40,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:40,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:06:40,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:06:40,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:06:40,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:40,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:06:40,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:06:40,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:40,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:06:40,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:40,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010083909] [2022-11-19 07:06:40,483 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:06:40,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327323457] [2022-11-19 07:06:40,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327323457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:40,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:06:40,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 07:06:40,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726381572] [2022-11-19 07:06:40,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:40,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:06:40,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:40,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:06:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:40,491 INFO L87 Difference]: Start difference. First operand 77 states and 107 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) [2022-11-19 07:06:40,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:40,584 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2022-11-19 07:06:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:06:40,586 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 [2022-11-19 07:06:40,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:40,591 INFO L225 Difference]: With dead ends: 77 [2022-11-19 07:06:40,591 INFO L226 Difference]: Without dead ends: 73 [2022-11-19 07:06:40,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:40,597 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:40,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 16 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:06:40,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-19 07:06:40,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-19 07:06:40,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 61 states have (on average 1.6885245901639345) internal successors, (103), 72 states have internal predecessors, (103), 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) [2022-11-19 07:06:40,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 103 transitions. [2022-11-19 07:06:40,623 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 103 transitions. Word has length 5 [2022-11-19 07:06:40,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:40,624 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 103 transitions. [2022-11-19 07:06:40,625 INFO L496 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) [2022-11-19 07:06:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 103 transitions. [2022-11-19 07:06:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:06:40,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:40,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:06:40,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:40,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:40,834 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-19 07:06:40,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:40,839 INFO L85 PathProgramCache]: Analyzing trace with hash 166581406, now seen corresponding path program 1 times [2022-11-19 07:06:40,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:40,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408901420] [2022-11-19 07:06:40,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:40,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:40,860 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:06:40,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1121866926] [2022-11-19 07:06:40,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:40,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:40,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:06:40,866 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:06:40,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:06:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:40,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:06:40,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:06:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:40,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:06:40,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:40,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408901420] [2022-11-19 07:06:40,980 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:06:40,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121866926] [2022-11-19 07:06:40,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121866926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:40,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:06:40,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:06:40,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355689649] [2022-11-19 07:06:40,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:40,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:06:40,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:40,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:06:40,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:40,990 INFO L87 Difference]: Start difference. First operand 73 states and 103 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) [2022-11-19 07:06:41,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:41,085 INFO L93 Difference]: Finished difference Result 73 states and 103 transitions. [2022-11-19 07:06:41,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:06:41,087 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 [2022-11-19 07:06:41,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:41,088 INFO L225 Difference]: With dead ends: 73 [2022-11-19 07:06:41,095 INFO L226 Difference]: Without dead ends: 69 [2022-11-19 07:06:41,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:06:41,101 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:41,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 16 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:06:41,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-19 07:06:41,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-19 07:06:41,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 61 states have (on average 1.5573770491803278) internal successors, (95), 68 states have internal predecessors, (95), 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) [2022-11-19 07:06:41,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2022-11-19 07:06:41,150 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 5 [2022-11-19 07:06:41,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:41,150 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2022-11-19 07:06:41,151 INFO L496 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) [2022-11-19 07:06:41,151 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2022-11-19 07:06:41,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:06:41,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:41,152 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-19 07:06:41,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:41,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:41,360 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-19 07:06:41,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:41,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1170942816, now seen corresponding path program 1 times [2022-11-19 07:06:41,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:41,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796382172] [2022-11-19 07:06:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:41,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:41,374 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:06:41,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140713683] [2022-11-19 07:06:41,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:41,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:41,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:06:41,377 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:06:41,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:06:41,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:41,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:06:41,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:06:41,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:41,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:06:41,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:06:41,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:41,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796382172] [2022-11-19 07:06:41,590 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:06:41,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140713683] [2022-11-19 07:06:41,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140713683] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:06:41,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [871782697] [2022-11-19 07:06:41,617 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-11-19 07:06:41,617 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:06:41,624 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:06:41,633 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:06:41,634 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:06:41,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:41,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:41,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:41,933 INFO L321 Elim1Store]: treesize reduction 176, result has 23.1 percent of original size [2022-11-19 07:06:41,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 46 treesize of output 78 [2022-11-19 07:06:42,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:42,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:42,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:42,232 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-19 07:06:42,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-19 07:06:42,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:42,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:42,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 53 [2022-11-19 07:06:42,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:42,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:42,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:42,857 INFO L321 Elim1Store]: treesize reduction 124, result has 16.2 percent of original size [2022-11-19 07:06:42,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 432 treesize of output 408 [2022-11-19 07:06:43,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:43,378 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:43,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:43,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:43,502 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:43,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:43,538 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:06:44,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [871782697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:44,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:06:44,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 8 [2022-11-19 07:06:44,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516267085] [2022-11-19 07:06:44,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:44,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:06:44,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:44,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:06:44,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:06:44,281 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:06:44,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:44,533 INFO L93 Difference]: Finished difference Result 134 states and 183 transitions. [2022-11-19 07:06:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:06:44,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-19 07:06:44,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:44,535 INFO L225 Difference]: With dead ends: 134 [2022-11-19 07:06:44,535 INFO L226 Difference]: Without dead ends: 72 [2022-11-19 07:06:44,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:06:44,537 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:44,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 25 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:06:44,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-19 07:06:44,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2022-11-19 07:06:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 63 states have (on average 1.492063492063492) internal successors, (94), 70 states have internal predecessors, (94), 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) [2022-11-19 07:06:44,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 94 transitions. [2022-11-19 07:06:44,566 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 94 transitions. Word has length 7 [2022-11-19 07:06:44,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:44,567 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 94 transitions. [2022-11-19 07:06:44,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:06:44,567 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 94 transitions. [2022-11-19 07:06:44,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 07:06:44,568 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:44,568 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-19 07:06:44,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:44,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:44,776 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-19 07:06:44,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:44,777 INFO L85 PathProgramCache]: Analyzing trace with hash -391561830, now seen corresponding path program 1 times [2022-11-19 07:06:44,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:44,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621862365] [2022-11-19 07:06:44,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:44,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:44,789 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:06:44,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [740196763] [2022-11-19 07:06:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:44,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:44,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:06:44,798 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:06:44,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 07:06:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:44,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:06:44,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:06:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:06:44,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:06:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:06:45,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:45,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621862365] [2022-11-19 07:06:45,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:06:45,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740196763] [2022-11-19 07:06:45,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740196763] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:06:45,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [133557446] [2022-11-19 07:06:45,039 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:06:45,039 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:06:45,040 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:06:45,040 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:06:45,040 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:06:45,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:45,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:45,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:45,269 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-19 07:06:45,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-19 07:06:45,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:45,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:45,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:45,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 58 [2022-11-19 07:06:45,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:45,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:45,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 53 [2022-11-19 07:06:45,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:45,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:45,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:45,665 INFO L321 Elim1Store]: treesize reduction 124, result has 16.2 percent of original size [2022-11-19 07:06:45,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 432 treesize of output 408 [2022-11-19 07:06:46,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:46,050 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:46,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:46,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:46,195 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:46,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:46,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:46,286 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:46,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:46,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:46,390 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:46,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:46,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:46,495 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:46,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:46,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:46,575 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:46,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:46,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:46,666 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:46,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:46,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:46,796 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:46,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:46,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:46,864 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:46,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:46,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:46,948 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:46,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:47,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:47,020 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:47,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:47,058 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:06:48,273 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1310#(and (= |ULTIMATE.start_main_~m~0#1| 1000) (<= 1500 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0))' at error location [2022-11-19 07:06:48,273 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:06:48,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:06:48,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-11-19 07:06:48,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498941597] [2022-11-19 07:06:48,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-19 07:06:48,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 07:06:48,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:48,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 07:06:48,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:06:48,276 INFO L87 Difference]: Start difference. First operand 71 states and 94 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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) [2022-11-19 07:06:48,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:48,684 INFO L93 Difference]: Finished difference Result 251 states and 355 transitions. [2022-11-19 07:06:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:06:48,685 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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 14 [2022-11-19 07:06:48,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:48,687 INFO L225 Difference]: With dead ends: 251 [2022-11-19 07:06:48,687 INFO L226 Difference]: Without dead ends: 189 [2022-11-19 07:06:48,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2022-11-19 07:06:48,691 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 324 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:48,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 52 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 07:06:48,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-19 07:06:48,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 181. [2022-11-19 07:06:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 173 states have (on average 1.2196531791907514) internal successors, (211), 180 states have internal predecessors, (211), 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) [2022-11-19 07:06:48,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 211 transitions. [2022-11-19 07:06:48,737 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 211 transitions. Word has length 14 [2022-11-19 07:06:48,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:48,737 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 211 transitions. [2022-11-19 07:06:48,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 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) [2022-11-19 07:06:48,738 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 211 transitions. [2022-11-19 07:06:48,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-19 07:06:48,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:06:48,741 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 2, 1, 1, 1, 1, 1] [2022-11-19 07:06:48,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:48,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 07:06:48,956 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-19 07:06:48,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:06:48,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1758494344, now seen corresponding path program 1 times [2022-11-19 07:06:48,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:06:48,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943333243] [2022-11-19 07:06:48,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:48,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:06:48,994 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:06:48,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031156448] [2022-11-19 07:06:48,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:06:48,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:06:48,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:06:48,996 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:06:49,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:06:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:06:49,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 07:06:49,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:06:49,333 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 71 proven. 51 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-19 07:06:49,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:06:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 71 proven. 51 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-19 07:06:49,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:06:49,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943333243] [2022-11-19 07:06:49,520 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:06:49,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031156448] [2022-11-19 07:06:49,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031156448] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:06:49,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [453732728] [2022-11-19 07:06:49,525 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-19 07:06:49,525 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:06:49,526 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:06:49,527 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:06:49,527 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:06:49,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:49,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:49,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:49,734 INFO L321 Elim1Store]: treesize reduction 190, result has 19.1 percent of original size [2022-11-19 07:06:49,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 60 treesize of output 93 [2022-11-19 07:06:49,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:49,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:49,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:49,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 58 [2022-11-19 07:06:49,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:49,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:49,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 53 [2022-11-19 07:06:50,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:50,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:06:50,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:50,121 INFO L321 Elim1Store]: treesize reduction 124, result has 16.2 percent of original size [2022-11-19 07:06:50,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 432 treesize of output 408 [2022-11-19 07:06:50,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:50,400 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:50,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:50,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:50,503 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:50,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:50,557 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:50,573 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:50,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:50,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:50,646 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:50,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:50,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:50,706 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:50,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:50,747 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:50,765 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:50,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:50,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:50,843 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:50,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:50,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:50,936 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:50,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:50,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:50,987 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:50,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:51,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:51,057 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:51,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:51,103 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:06:51,121 INFO L321 Elim1Store]: treesize reduction 22, result has 47.6 percent of original size [2022-11-19 07:06:51,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 37 [2022-11-19 07:06:51,151 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:06:53,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [453732728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:06:53,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:06:53,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9, 9] total 22 [2022-11-19 07:06:53,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450761483] [2022-11-19 07:06:53,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:06:53,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:06:53,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:06:53,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:06:53,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2022-11-19 07:06:53,374 INFO L87 Difference]: Start difference. First operand 181 states and 211 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:06:54,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:06:54,165 INFO L93 Difference]: Finished difference Result 181 states and 211 transitions. [2022-11-19 07:06:54,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:06:54,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-19 07:06:54,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:06:54,166 INFO L225 Difference]: With dead ends: 181 [2022-11-19 07:06:54,166 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:06:54,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 72 SyntacticMatches, 10 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=197, Invalid=453, Unknown=0, NotChecked=0, Total=650 [2022-11-19 07:06:54,167 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:06:54,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:06:54,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:06:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:06:54,169 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) [2022-11-19 07:06:54,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:06:54,169 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2022-11-19 07:06:54,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:06:54,169 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:06:54,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:06:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:06:54,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:06:54,172 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-19 07:06:54,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-19 07:06:54,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-19 07:06:54,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-19 07:06:54,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-19 07:06:54,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-19 07:06:54,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-19 07:06:54,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-19 07:06:54,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-19 07:06:54,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-19 07:06:54,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-19 07:06:54,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-19 07:06:54,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-19 07:06:54,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-19 07:06:54,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-19 07:06:54,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-19 07:06:54,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:06:54,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 07:06:54,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:06:55,727 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-19 07:06:55,727 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2022-11-19 07:06:55,727 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-19 07:06:55,727 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-11-19 07:06:55,727 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-11-19 07:06:55,728 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-11-19 07:06:55,728 INFO L895 garLoopResultBuilder]: At program point L69-2(lines 69 73) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1000) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-19 07:06:55,728 INFO L899 garLoopResultBuilder]: For program point L69-3(lines 69 73) no Hoare annotation was computed. [2022-11-19 07:06:55,729 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-19 07:06:55,729 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:06:55,729 INFO L895 garLoopResultBuilder]: At program point L53-2(lines 53 61) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse4 (= |#NULL.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse6 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|)) (.cse8 (<= 0 |#StackHeapBarrier|)) (.cse9 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse10 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) .cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 1500 |ULTIMATE.start_main_~j~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))) [2022-11-19 07:06:55,729 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2022-11-19 07:06:55,730 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-19 07:06:55,730 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2022-11-19 07:06:55,730 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2022-11-19 07:06:55,730 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 47) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse4 (= |#NULL.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse6 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|)) (.cse8 (<= 0 |#StackHeapBarrier|)) (.cse9 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse10 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) .cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 1500 |ULTIMATE.start_main_~j~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))) [2022-11-19 07:06:55,731 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-19 07:06:55,731 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2022-11-19 07:06:55,731 INFO L895 garLoopResultBuilder]: At program point L55-2(lines 55 59) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1000) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-19 07:06:55,731 INFO L899 garLoopResultBuilder]: For program point L55-3(lines 55 59) no Hoare annotation was computed. [2022-11-19 07:06:55,731 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2022-11-19 07:06:55,732 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2022-11-19 07:06:55,732 INFO L899 garLoopResultBuilder]: For program point L72-1(line 72) no Hoare annotation was computed. [2022-11-19 07:06:55,732 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2022-11-19 07:06:55,732 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 40 45) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1000) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-19 07:06:55,732 INFO L899 garLoopResultBuilder]: For program point L40-3(lines 40 45) no Hoare annotation was computed. [2022-11-19 07:06:55,733 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-19 07:06:55,733 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-19 07:06:55,734 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 33) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse3 (= |#NULL.offset| 0)) (.cse4 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse5 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse6 (= |#NULL.base| 0))) (or (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 1500 |ULTIMATE.start_main_~j~0#1|) .cse1 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) .cse4 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) .cse5 .cse6) (let ((.cse7 (* (mod (* |ULTIMATE.start_main_~m~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4)) (.cse8 (select |#memory_int| 1))) (and (= .cse7 (select |#length| |ULTIMATE.start_main_~#B~0#1.base|)) (= (select |#length| |ULTIMATE.start_main_~#C~0#1.base|) .cse7) (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 (= 13 (select |#length| 2)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) .cse1 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#C~0#1.base|) (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse7) (= (select |#valid| |ULTIMATE.start_main_~#C~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) .cse2 (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse3 (= (select .cse8 0) 48) (not (= |ULTIMATE.start_main_~#C~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~j~0#1| 0) .cse4 (= (select .cse8 1) 0) (not (= |ULTIMATE.start_main_~#C~0#1.base| |ULTIMATE.start_main_~#B~0#1.base|)) .cse5 (< 0 |#StackHeapBarrier|) .cse6)))) [2022-11-19 07:06:55,734 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-19 07:06:55,734 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-11-19 07:06:55,734 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:06:55,734 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2022-11-19 07:06:55,735 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2022-11-19 07:06:55,735 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-11-19 07:06:55,735 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-19 07:06:55,735 INFO L895 garLoopResultBuilder]: At program point L67-2(lines 67 75) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (= |ULTIMATE.start_main_~#C~0#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse3 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse4 (= |#NULL.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse6 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse7 (<= 0 |ULTIMATE.start_main_~#C~0#1.base|)) (.cse8 (<= 0 |#StackHeapBarrier|)) (.cse9 (= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse10 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) .cse3 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= |ULTIMATE.start_main_~j~0#1| 0)) (and .cse0 (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 1500 |ULTIMATE.start_main_~j~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))) [2022-11-19 07:06:55,736 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-19 07:06:55,736 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 31) the Hoare annotation is: (and (= |ULTIMATE.start_main_~m~0#1| 1000) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1000) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1500) (= |#NULL.base| 0)) [2022-11-19 07:06:55,736 INFO L899 garLoopResultBuilder]: For program point L26-3(lines 26 31) no Hoare annotation was computed. [2022-11-19 07:06:55,736 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-19 07:06:55,736 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-11-19 07:06:55,740 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:06:55,743 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:06:55,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:06:55 BoogieIcfgContainer [2022-11-19 07:06:55,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:06:55,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:06:55,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:06:55,803 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:06:55,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:06:38" (3/4) ... [2022-11-19 07:06:55,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:06:55,817 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-19 07:06:55,820 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-19 07:06:55,821 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 07:06:55,821 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:06:55,881 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:06:55,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:06:55,882 INFO L158 Benchmark]: Toolchain (without parser) took 18794.07ms. Allocated memory was 130.0MB in the beginning and 272.6MB in the end (delta: 142.6MB). Free memory was 98.6MB in the beginning and 161.7MB in the end (delta: -63.2MB). Peak memory consumption was 78.3MB. Max. memory is 16.1GB. [2022-11-19 07:06:55,884 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 88.1MB. Free memory was 41.9MB in the beginning and 41.8MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:06:55,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.30ms. Allocated memory is still 130.0MB. Free memory was 98.3MB in the beginning and 106.8MB in the end (delta: -8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:06:55,885 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.16ms. Allocated memory is still 130.0MB. Free memory was 106.3MB in the beginning and 104.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:06:55,885 INFO L158 Benchmark]: Boogie Preprocessor took 52.04ms. Allocated memory is still 130.0MB. Free memory was 104.7MB in the beginning and 103.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:06:55,886 INFO L158 Benchmark]: RCFGBuilder took 732.86ms. Allocated memory is still 130.0MB. Free memory was 103.3MB in the beginning and 85.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-19 07:06:55,886 INFO L158 Benchmark]: TraceAbstraction took 17361.92ms. Allocated memory was 130.0MB in the beginning and 272.6MB in the end (delta: 142.6MB). Free memory was 84.9MB in the beginning and 165.9MB in the end (delta: -81.0MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. [2022-11-19 07:06:55,886 INFO L158 Benchmark]: Witness Printer took 79.67ms. Allocated memory is still 272.6MB. Free memory was 164.9MB in the beginning and 161.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:06:55,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 88.1MB. Free memory was 41.9MB in the beginning and 41.8MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.30ms. Allocated memory is still 130.0MB. Free memory was 98.3MB in the beginning and 106.8MB in the end (delta: -8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.16ms. Allocated memory is still 130.0MB. Free memory was 106.3MB in the beginning and 104.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.04ms. Allocated memory is still 130.0MB. Free memory was 104.7MB in the beginning and 103.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 732.86ms. Allocated memory is still 130.0MB. Free memory was 103.3MB in the beginning and 85.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17361.92ms. Allocated memory was 130.0MB in the beginning and 272.6MB in the end (delta: 142.6MB). Free memory was 84.9MB in the beginning and 165.9MB in the end (delta: -81.0MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. * Witness Printer took 79.67ms. Allocated memory is still 272.6MB. Free memory was 164.9MB in the beginning and 161.7MB in the end (delta: 3.1MB). 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: 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 - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: 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, 42 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 493 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 493 mSDsluCounter, 185 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 219 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 474 IncrementalHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 219 mSolverCounterUnsat, 117 mSDtfsCounter, 474 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 116 SyntacticMatches, 14 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=6, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 53 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 72 NumberOfFragments, 635 HoareAnnotationTreeSize, 8 FomulaSimplifications, 366 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 8 FomulaSimplificationsInter, 2534 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 4 NumberOfNonLiveVariables, 770 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 182/298 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 3.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 12, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 67, TOOLS_POST_TIME: 3.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 67, TOOLS_QUANTIFIERELIM_TIME: 3.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.6s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 123, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 11, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 17, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 12, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 2.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 17, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 139, DAG_COMPRESSION_RETAINED_NODES: 54, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && i <= 1000) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((((((((((m == 1000 && 1 <= i) && 1500 <= j) && C == 0) && 0 <= A) && i <= 2147483646) && A == 0) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) || ((((((((((((((((((((((((((((((m * n % 1073741824 * 4 == unknown-#length-unknown[B] && unknown-#length-unknown[C] == m * n % 1073741824 * 4) && unknown-#length-unknown[3] == 12) && i == 0) && m == 1000) && 13 == unknown-#length-unknown[2]) && unknown-#StackHeapBarrier-unknown < A) && C == 0) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && unknown-#StackHeapBarrier-unknown < C) && unknown-#length-unknown[A] == m * n % 1073741824 * 4) && \valid[C] == 1) && \valid[B] == 1) && A == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && !(C == A)) && !(B == A)) && j == 0) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && !(C == B)) && n == 1500) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: ((((((((((((((m == 1000 && C == 0) && 0 <= A) && i <= 0) && 0 <= j) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) && j <= 0) || (((((((((((((m == 1000 && 1 <= i) && 1500 <= j) && C == 0) && 0 <= A) && i <= 2147483646) && A == 0) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && i <= 1000) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && i <= 1000) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((((((((((((m == 1000 && C == 0) && 0 <= A) && 0 <= j) && i <= 1000) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((((((((((((m == 1000 && C == 0) && 0 <= A) && i <= 0) && 0 <= j) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) && j <= 0) || (((((((((((((m == 1000 && 1 <= i) && 1500 <= j) && C == 0) && 0 <= A) && i <= 2147483646) && A == 0) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((((((((((m == 1000 && C == 0) && 0 <= A) && i <= 0) && 0 <= j) && A == 0) && 0 <= i) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) && j <= 0) || (((((((((((((m == 1000 && 1 <= i) && 1500 <= j) && C == 0) && 0 <= A) && i <= 2147483646) && A == 0) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= C) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1500) && #NULL == 0) RESULT: Ultimate proved your program to be correct! [2022-11-19 07:06:55,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c61bae8-d7f4-453a-a047-a61bd5c8308e/bin/utaipan-I9t0OCRTmS/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