./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/sum04-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/sum04-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh --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 aaea6fef281249794f41087d72bdcfa92bd0b0609c0833888767b94608daa7f2 --- 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-2329fc7 [2022-12-14 07:22:15,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:22:15,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:22:15,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:22:15,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:22:15,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:22:15,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:22:15,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:22:15,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:22:15,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:22:15,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:22:15,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:22:15,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:22:15,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:22:15,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:22:15,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:22:15,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:22:15,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:22:15,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:22:15,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:22:15,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:22:15,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:22:15,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:22:15,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:22:15,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:22:15,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:22:15,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:22:15,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:22:15,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:22:15,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:22:15,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:22:15,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:22:15,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:22:15,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:22:15,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:22:15,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:22:15,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:22:15,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:22:15,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:22:15,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:22:15,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:22:15,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 07:22:15,562 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:22:15,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:22:15,562 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:22:15,562 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:22:15,563 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:22:15,563 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:22:15,563 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:22:15,563 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:22:15,564 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:22:15,564 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:22:15,564 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:22:15,564 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:22:15,564 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:22:15,564 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:22:15,564 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:22:15,565 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:22:15,565 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:22:15,565 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:22:15,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:22:15,565 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:22:15,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:22:15,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:22:15,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:22:15,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:22:15,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:22:15,567 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:22:15,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:22:15,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:22:15,567 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:22:15,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:22:15,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:22:15,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:22:15,568 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_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaea6fef281249794f41087d72bdcfa92bd0b0609c0833888767b94608daa7f2 [2022-12-14 07:22:15,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:22:15,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:22:15,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:22:15,786 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:22:15,786 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:22:15,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/loops/sum04-2.i [2022-12-14 07:22:18,379 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:22:18,524 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:22:18,524 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/sv-benchmarks/c/loops/sum04-2.i [2022-12-14 07:22:18,528 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/data/2d7b6b7d8/550d0761140547c2a658e3caa7ce5330/FLAG8c400b154 [2022-12-14 07:22:18,953 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/data/2d7b6b7d8/550d0761140547c2a658e3caa7ce5330 [2022-12-14 07:22:18,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:22:18,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:22:18,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:22:18,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:22:18,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:22:18,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:22:18" (1/1) ... [2022-12-14 07:22:18,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c01eca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:18, skipping insertion in model container [2022-12-14 07:22:18,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:22:18" (1/1) ... [2022-12-14 07:22:18,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:22:18,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:22:19,069 WARN L237 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_bb641c6d-2825-4e19-a342-2edd1f2312d6/sv-benchmarks/c/loops/sum04-2.i[808,821] [2022-12-14 07:22:19,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:22:19,082 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:22:19,090 WARN L237 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_bb641c6d-2825-4e19-a342-2edd1f2312d6/sv-benchmarks/c/loops/sum04-2.i[808,821] [2022-12-14 07:22:19,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:22:19,100 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:22:19,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19 WrapperNode [2022-12-14 07:22:19,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:22:19,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:22:19,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:22:19,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:22:19,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,123 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-12-14 07:22:19,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:22:19,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:22:19,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:22:19,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:22:19,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,134 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:22:19,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:22:19,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:22:19,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:22:19,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (1/1) ... [2022-12-14 07:22:19,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:22:19,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:22:19,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:22:19,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:22:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:22:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:22:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:22:19,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:22:19,244 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:22:19,245 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:22:19,319 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:22:19,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:22:19,347 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 07:22:19,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:22:19 BoogieIcfgContainer [2022-12-14 07:22:19,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:22:19,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:22:19,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:22:19,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:22:19,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:22:18" (1/3) ... [2022-12-14 07:22:19,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eed241d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:22:19, skipping insertion in model container [2022-12-14 07:22:19,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:22:19" (2/3) ... [2022-12-14 07:22:19,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eed241d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:22:19, skipping insertion in model container [2022-12-14 07:22:19,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:22:19" (3/3) ... [2022-12-14 07:22:19,358 INFO L112 eAbstractionObserver]: Analyzing ICFG sum04-2.i [2022-12-14 07:22:19,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:22:19,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 07:22:19,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:22:19,423 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;@65a76c62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:22:19,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 07:22:19,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 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) [2022-12-14 07:22:19,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 07:22:19,431 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:22:19,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 07:22:19,432 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 07:22:19,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:22:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash 69513, now seen corresponding path program 1 times [2022-12-14 07:22:19,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:22:19,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116890554] [2022-12-14 07:22:19,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:19,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:22:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:19,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:19,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:22:19,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116890554] [2022-12-14 07:22:19,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116890554] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:22:19,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:22:19,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:22:19,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130083157] [2022-12-14 07:22:19,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:22:19,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:22:19,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:22:19,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:22:19,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:22:19,617 INFO L87 Difference]: Start difference. First operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-14 07:22:19,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:22:19,654 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-12-14 07:22:19,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:22:19,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 07:22:19,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:22:19,661 INFO L225 Difference]: With dead ends: 17 [2022-12-14 07:22:19,661 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 07:22:19,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:22:19,665 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:22:19,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:22:19,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 07:22:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 07:22:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 12 states have internal predecessors, (13), 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) [2022-12-14 07:22:19,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-12-14 07:22:19,691 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 3 [2022-12-14 07:22:19,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:22:19,691 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-12-14 07:22:19,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-14 07:22:19,691 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-12-14 07:22:19,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:22:19,692 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:22:19,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:22:19,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:22:19,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 07:22:19,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:22:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash 66804211, now seen corresponding path program 1 times [2022-12-14 07:22:19,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:22:19,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769637240] [2022-12-14 07:22:19,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:19,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:22:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:19,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:19,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:22:19,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769637240] [2022-12-14 07:22:19,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769637240] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:22:19,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:22:19,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:22:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251066117] [2022-12-14 07:22:19,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:22:19,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:22:19,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:22:19,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:22:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:22:19,762 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:22:19,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:22:19,793 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-12-14 07:22:19,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:22:19,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 07:22:19,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:22:19,794 INFO L225 Difference]: With dead ends: 17 [2022-12-14 07:22:19,794 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 07:22:19,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:22:19,796 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:22:19,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:22:19,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 07:22:19,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 07:22:19,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-12-14 07:22:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 07:22:19,801 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2022-12-14 07:22:19,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:22:19,801 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 07:22:19,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:22:19,802 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 07:22:19,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 07:22:19,802 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:22:19,802 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 07:22:19,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:22:19,803 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 07:22:19,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:22:19,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1594441185, now seen corresponding path program 1 times [2022-12-14 07:22:19,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:22:19,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376413805] [2022-12-14 07:22:19,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:19,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:22:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:19,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:22:19,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376413805] [2022-12-14 07:22:19,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376413805] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:22:19,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714567693] [2022-12-14 07:22:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:19,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:22:19,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:22:19,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:22:19,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:22:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:19,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:22:19,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:22:19,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:19,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:22:19,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714567693] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:22:19,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:22:19,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-12-14 07:22:19,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007888231] [2022-12-14 07:22:19,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:22:19,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:22:19,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:22:19,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:22:19,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:22:19,952 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:22:19,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:22:19,963 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-12-14 07:22:19,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:22:19,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 07:22:19,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:22:19,964 INFO L225 Difference]: With dead ends: 15 [2022-12-14 07:22:19,964 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 07:22:19,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:22:19,966 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:22:19,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:22:19,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 07:22:19,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 07:22:19,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-12-14 07:22:19,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-12-14 07:22:19,970 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2022-12-14 07:22:19,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:22:19,970 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-12-14 07:22:19,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:22:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-12-14 07:22:19,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 07:22:19,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:22:19,971 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-14 07:22:19,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:22:20,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-14 07:22:20,173 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 07:22:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:22:20,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2111930773, now seen corresponding path program 1 times [2022-12-14 07:22:20,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:22:20,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326093354] [2022-12-14 07:22:20,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:20,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:22:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:20,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:20,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:22:20,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326093354] [2022-12-14 07:22:20,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326093354] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:22:20,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511006790] [2022-12-14 07:22:20,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:20,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:22:20,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:22:20,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:22:20,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:22:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:20,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:22:20,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:22:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:20,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:22:20,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:20,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511006790] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:22:20,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1678698377] [2022-12-14 07:22:20,422 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 07:22:20,422 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:22:20,424 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:22:20,428 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:22:20,429 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:22:20,660 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:22:21,010 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '207#(and (<= |ULTIMATE.start_main_~i~0#1| 8) (<= 2 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (not (<= |ULTIMATE.start_main_~sn~0#1| 2147483645)))' at error location [2022-12-14 07:22:21,011 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:22:21,011 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:22:21,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-12-14 07:22:21,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050943376] [2022-12-14 07:22:21,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:22:21,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 07:22:21,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:22:21,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 07:22:21,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-14 07:22:21,013 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:22:21,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:22:21,035 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-12-14 07:22:21,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:22:21,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 07:22:21,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:22:21,036 INFO L225 Difference]: With dead ends: 32 [2022-12-14 07:22:21,036 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 07:22:21,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-14 07:22:21,038 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:22:21,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 31 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:22:21,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 07:22:21,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2022-12-14 07:22:21,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:22:21,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-12-14 07:22:21,044 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 9 [2022-12-14 07:22:21,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:22:21,045 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-12-14 07:22:21,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:22:21,045 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-12-14 07:22:21,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 07:22:21,045 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:22:21,045 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-14 07:22:21,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 07:22:21,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:22:21,246 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 07:22:21,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:22:21,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1045343669, now seen corresponding path program 1 times [2022-12-14 07:22:21,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:22:21,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955150522] [2022-12-14 07:22:21,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:21,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:22:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:21,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:21,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:22:21,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955150522] [2022-12-14 07:22:21,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955150522] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:22:21,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488038597] [2022-12-14 07:22:21,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:21,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:22:21,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:22:21,318 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:22:21,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 07:22:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:21,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 07:22:21,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:22:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:21,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:22:21,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488038597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:22:21,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:22:21,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-14 07:22:21,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857580054] [2022-12-14 07:22:21,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:22:21,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:22:21,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:22:21,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:22:21,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:22:21,388 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:22:21,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:22:21,425 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-12-14 07:22:21,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:22:21,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 07:22:21,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:22:21,426 INFO L225 Difference]: With dead ends: 27 [2022-12-14 07:22:21,426 INFO L226 Difference]: Without dead ends: 26 [2022-12-14 07:22:21,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:22:21,427 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:22:21,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 10 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:22:21,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-14 07:22:21,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-14 07:22:21,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 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) [2022-12-14 07:22:21,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-12-14 07:22:21,432 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 10 [2022-12-14 07:22:21,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:22:21,432 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-12-14 07:22:21,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:22:21,433 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-12-14 07:22:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 07:22:21,433 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:22:21,433 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1] [2022-12-14 07:22:21,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 07:22:21,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:22:21,635 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 07:22:21,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:22:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1954084679, now seen corresponding path program 1 times [2022-12-14 07:22:21,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:22:21,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663555663] [2022-12-14 07:22:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:21,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:22:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:21,740 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 07:22:21,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:22:21,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663555663] [2022-12-14 07:22:21,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663555663] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:22:21,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:22:21,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:22:21,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700207214] [2022-12-14 07:22:21,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:22:21,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:22:21,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:22:21,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:22:21,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:22:21,746 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 07:22:21,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:22:21,796 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2022-12-14 07:22:21,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:22:21,798 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 07:22:21,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:22:21,799 INFO L225 Difference]: With dead ends: 26 [2022-12-14 07:22:21,800 INFO L226 Difference]: Without dead ends: 25 [2022-12-14 07:22:21,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:22:21,802 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:22:21,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:22:21,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-12-14 07:22:21,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-12-14 07:22:21,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:22:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2022-12-14 07:22:21,812 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 11 [2022-12-14 07:22:21,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:22:21,812 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2022-12-14 07:22:21,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-12-14 07:22:21,813 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2022-12-14 07:22:21,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 07:22:21,814 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:22:21,814 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1] [2022-12-14 07:22:21,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:22:21,815 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 07:22:21,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:22:21,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1795099709, now seen corresponding path program 2 times [2022-12-14 07:22:21,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:22:21,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792956551] [2022-12-14 07:22:21,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:21,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:22:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:21,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:22:21,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792956551] [2022-12-14 07:22:21,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792956551] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:22:21,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536377089] [2022-12-14 07:22:21,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 07:22:21,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:22:21,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:22:21,903 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:22:21,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 07:22:21,938 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-14 07:22:21,938 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:22:21,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 07:22:21,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:22:21,974 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:21,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:22:22,032 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:22,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536377089] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:22:22,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1782535439] [2022-12-14 07:22:22,034 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 07:22:22,034 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:22:22,035 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:22:22,035 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:22:22,035 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:22:22,131 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:22:22,403 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '601#(and (<= |ULTIMATE.start_main_~i~0#1| 8) (<= 2 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (not (<= |ULTIMATE.start_main_~sn~0#1| 2147483645)))' at error location [2022-12-14 07:22:22,403 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:22:22,403 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:22:22,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 07:22:22,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930248154] [2022-12-14 07:22:22,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:22:22,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 07:22:22,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:22:22,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 07:22:22,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-12-14 07:22:22,405 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 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) [2022-12-14 07:22:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:22:22,436 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2022-12-14 07:22:22,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 07:22:22,436 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 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 24 [2022-12-14 07:22:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:22:22,437 INFO L225 Difference]: With dead ends: 56 [2022-12-14 07:22:22,437 INFO L226 Difference]: Without dead ends: 55 [2022-12-14 07:22:22,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-12-14 07:22:22,438 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:22:22,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 34 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:22:22,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-14 07:22:22,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-12-14 07:22:22,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 54 states have internal predecessors, (55), 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) [2022-12-14 07:22:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2022-12-14 07:22:22,445 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 24 [2022-12-14 07:22:22,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:22:22,445 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2022-12-14 07:22:22,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 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) [2022-12-14 07:22:22,445 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2022-12-14 07:22:22,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 07:22:22,446 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:22:22,447 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1] [2022-12-14 07:22:22,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 07:22:22,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:22:22,647 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 07:22:22,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:22:22,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1163308739, now seen corresponding path program 3 times [2022-12-14 07:22:22,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:22:22,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794747072] [2022-12-14 07:22:22,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:22:22,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:22:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:22:22,855 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:22:22,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:22:22,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794747072] [2022-12-14 07:22:22,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794747072] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:22:22,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660479956] [2022-12-14 07:22:22,855 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-14 07:22:22,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:22:22,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:22:22,856 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:22:22,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 07:22:22,899 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-14 07:22:22,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 07:22:22,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-14 07:22:22,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:22:23,109 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 07:22:23,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 07:22:23,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660479956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:22:23,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 07:22:23,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [11] total 29 [2022-12-14 07:22:23,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282400666] [2022-12-14 07:22:23,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:22:23,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 07:22:23,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:22:23,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 07:22:23,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=694, Unknown=0, NotChecked=0, Total=870 [2022-12-14 07:22:23,112 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 18 states have internal predecessors, (48), 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) [2022-12-14 07:22:23,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:22:23,270 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2022-12-14 07:22:23,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 07:22:23,271 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 18 states have internal predecessors, (48), 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 54 [2022-12-14 07:22:23,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:22:23,271 INFO L225 Difference]: With dead ends: 55 [2022-12-14 07:22:23,271 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 07:22:23,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=1114, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 07:22:23,273 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:22:23,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 45 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:22:23,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 07:22:23,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 07:22:23,274 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) [2022-12-14 07:22:23,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 07:22:23,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2022-12-14 07:22:23,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:22:23,274 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 07:22:23,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 18 states have internal predecessors, (48), 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) [2022-12-14 07:22:23,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 07:22:23,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 07:22:23,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-14 07:22:23,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-14 07:22:23,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-14 07:22:23,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-14 07:22:23,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-14 07:22:23,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:22:23,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 07:22:23,521 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-12-14 07:22:23,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 07:22:23,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-12-14 07:22:23,522 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-12-14 07:22:23,522 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-12-14 07:22:23,522 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 07:22:23,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-12-14 07:22:23,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-12-14 07:22:23,522 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2022-12-14 07:22:23,522 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2022-12-14 07:22:23,523 INFO L895 garLoopResultBuilder]: At program point L24-5(lines 24 26) the Hoare annotation is: (let ((.cse0 (<= 2 |ULTIMATE.start_main_~sn~0#1|))) (or (and .cse0 (<= 8 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~sn~0#1| 2147483642)) (and (<= |ULTIMATE.start_main_~sn~0#1| 2) .cse0 (<= 2 |ULTIMATE.start_main_~i~0#1|)) (and (< |ULTIMATE.start_main_~sn~0#1| 2147483644) .cse0 (<= 9 |ULTIMATE.start_main_~i~0#1|)) (and .cse0 (<= 4 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~sn~0#1| 6)) (and (< |ULTIMATE.start_main_~sn~0#1| 2147483638) .cse0 (<= 6 |ULTIMATE.start_main_~i~0#1|)) (and (< |ULTIMATE.start_main_~sn~0#1| 2147483640) (<= 7 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~sn~0#1| 4) (<= 3 |ULTIMATE.start_main_~i~0#1|) .cse0) (and (<= 5 |ULTIMATE.start_main_~i~0#1|) .cse0 (<= |ULTIMATE.start_main_~sn~0#1| 8)) (and (= |ULTIMATE.start_main_~i~0#1| 1) (= |ULTIMATE.start_main_~sn~0#1| 0)))) [2022-12-14 07:22:23,525 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1] [2022-12-14 07:22:23,526 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:22:23,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:22:23 BoogieIcfgContainer [2022-12-14 07:22:23,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:22:23,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:22:23,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:22:23,536 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:22:23,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:22:19" (3/4) ... [2022-12-14 07:22:23,538 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 07:22:23,544 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-14 07:22:23,544 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-14 07:22:23,544 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 07:22:23,544 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:22:23,562 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:22:23,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:22:23,563 INFO L158 Benchmark]: Toolchain (without parser) took 4606.47ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 87.5MB in the beginning and 103.3MB in the end (delta: -15.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:22:23,563 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:22:23,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.18ms. Allocated memory is still 121.6MB. Free memory was 87.5MB in the beginning and 77.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:22:23,563 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.26ms. Allocated memory is still 121.6MB. Free memory was 77.4MB in the beginning and 76.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:22:23,563 INFO L158 Benchmark]: Boogie Preprocessor took 12.31ms. Allocated memory is still 121.6MB. Free memory was 76.0MB in the beginning and 75.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:22:23,563 INFO L158 Benchmark]: RCFGBuilder took 213.78ms. Allocated memory is still 121.6MB. Free memory was 75.0MB in the beginning and 64.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 07:22:23,564 INFO L158 Benchmark]: TraceAbstraction took 4183.69ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 64.1MB in the beginning and 105.4MB in the end (delta: -41.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:22:23,564 INFO L158 Benchmark]: Witness Printer took 26.27ms. Allocated memory is still 146.8MB. Free memory was 105.4MB in the beginning and 103.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:22:23,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 121.6MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.18ms. Allocated memory is still 121.6MB. Free memory was 87.5MB in the beginning and 77.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.26ms. Allocated memory is still 121.6MB. Free memory was 77.4MB in the beginning and 76.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.31ms. Allocated memory is still 121.6MB. Free memory was 76.0MB in the beginning and 75.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 213.78ms. Allocated memory is still 121.6MB. Free memory was 75.0MB in the beginning and 64.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4183.69ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 64.1MB in the beginning and 105.4MB in the end (delta: -41.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 26.27ms. Allocated memory is still 146.8MB. Free memory was 105.4MB in the beginning and 103.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 8, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 157 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 116 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 282 IncrementalHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 41 mSDtfsCounter, 282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=7, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 10 NumberOfFragments, 88 HoareAnnotationTreeSize, 1 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 247 ConstructedInterpolants, 0 QuantifiedInterpolants, 705 SizeOfPredicates, 10 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 266/662 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((((((2 <= sn && 8 <= i) && sn < 2147483642) || ((sn <= 2 && 2 <= sn) && 2 <= i)) || ((sn < 2147483644 && 2 <= sn) && 9 <= i)) || ((2 <= sn && 4 <= i) && sn <= 6)) || ((sn < 2147483638 && 2 <= sn) && 6 <= i)) || ((sn < 2147483640 && 7 <= i) && 2 <= sn)) || ((sn <= 4 && 3 <= i) && 2 <= sn)) || ((5 <= i && 2 <= sn) && sn <= 8)) || (i == 1 && sn == 0) RESULT: Ultimate proved your program to be correct! [2022-12-14 07:22:23,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb641c6d-2825-4e19-a342-2edd1f2312d6/bin/utaipan-gh47qXpMRh/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