./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_copyInit_ground.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_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/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_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-examples/standard_copyInit_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/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_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/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 dba50526fe277b889497552d450811df3b306fd8692f19f5bf4d016bb218a94b --- 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 15:14:58,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:14:58,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:14:58,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:14:58,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:14:58,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:14:58,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:14:58,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:14:58,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:14:58,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:14:58,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:14:58,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:14:58,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:14:58,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:14:58,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:14:58,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:14:58,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:14:58,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:14:58,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:14:58,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:14:58,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:14:58,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:14:58,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:14:58,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:14:58,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:14:58,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:14:58,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:14:58,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:14:58,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:14:58,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:14:58,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:14:58,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:14:58,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:14:58,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:14:58,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:14:58,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:14:58,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:14:58,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:14:58,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:14:58,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:14:58,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:14:58,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 15:14:58,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:14:58,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:14:58,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:14:58,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:14:58,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:14:58,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:14:58,430 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:14:58,430 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:14:58,430 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:14:58,430 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:14:58,430 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:14:58,431 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:14:58,431 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:14:58,431 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:14:58,431 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:14:58,431 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:14:58,431 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:14:58,431 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:14:58,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:14:58,432 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:14:58,432 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:14:58,432 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:14:58,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:14:58,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:14:58,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:14:58,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:14:58,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:14:58,432 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:14:58,432 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:14:58,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:14:58,433 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:14:58,433 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:14:58,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:14:58,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:14:58,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:14:58,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:14:58,433 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:14:58,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:14:58,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:14:58,434 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:14:58,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:14:58,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:14:58,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:14:58,434 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_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dba50526fe277b889497552d450811df3b306fd8692f19f5bf4d016bb218a94b [2022-12-14 15:14:58,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:14:58,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:14:58,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:14:58,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:14:58,611 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:14:58,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/array-examples/standard_copyInit_ground.i [2022-12-14 15:15:01,110 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:15:01,276 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:15:01,277 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/sv-benchmarks/c/array-examples/standard_copyInit_ground.i [2022-12-14 15:15:01,281 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/data/e25b010d7/4262e5d593b148659d68db44884789e5/FLAG366d94f39 [2022-12-14 15:15:01,293 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/data/e25b010d7/4262e5d593b148659d68db44884789e5 [2022-12-14 15:15:01,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:15:01,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:15:01,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:15:01,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:15:01,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:15:01,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f834d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01, skipping insertion in model container [2022-12-14 15:15:01,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:15:01,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:15:01,439 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_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/sv-benchmarks/c/array-examples/standard_copyInit_ground.i[817,830] [2022-12-14 15:15:01,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:15:01,458 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:15:01,470 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_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/sv-benchmarks/c/array-examples/standard_copyInit_ground.i[817,830] [2022-12-14 15:15:01,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:15:01,488 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:15:01,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01 WrapperNode [2022-12-14 15:15:01,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:15:01,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:15:01,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:15:01,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:15:01,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,514 INFO L138 Inliner]: procedures = 15, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 62 [2022-12-14 15:15:01,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:15:01,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:15:01,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:15:01,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:15:01,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,529 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:15:01,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:15:01,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:15:01,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:15:01,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (1/1) ... [2022-12-14 15:15:01,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:15:01,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:15:01,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:15:01,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:15:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:15:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:15:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:15:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:15:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:15:01,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:15:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:15:01,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:15:01,641 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:15:01,642 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:15:01,748 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:15:01,785 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:15:01,785 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 15:15:01,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:15:01 BoogieIcfgContainer [2022-12-14 15:15:01,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:15:01,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:15:01,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:15:01,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:15:01,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:15:01" (1/3) ... [2022-12-14 15:15:01,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e4a137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:15:01, skipping insertion in model container [2022-12-14 15:15:01,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:15:01" (2/3) ... [2022-12-14 15:15:01,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e4a137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:15:01, skipping insertion in model container [2022-12-14 15:15:01,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:15:01" (3/3) ... [2022-12-14 15:15:01,797 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copyInit_ground.i [2022-12-14 15:15:01,817 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:15:01,818 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 15:15:01,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:15:01,877 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;@11acc938, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:15:01,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 15:15:01,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.9) internal successors, (19), 16 states have internal predecessors, (19), 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 15:15:01,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 15:15:01,888 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:01,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 15:15:01,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:15:01,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:01,895 INFO L85 PathProgramCache]: Analyzing trace with hash 98375, now seen corresponding path program 1 times [2022-12-14 15:15:01,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:01,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275797044] [2022-12-14 15:15:01,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:01,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:02,085 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 15:15:02,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:02,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275797044] [2022-12-14 15:15:02,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275797044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:15:02,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:15:02,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 15:15:02,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488286000] [2022-12-14 15:15:02,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:15:02,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:15:02,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:02,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:15:02,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:15:02,123 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.9) internal successors, (19), 16 states have internal predecessors, (19), 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 15:15:02,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:02,169 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-12-14 15:15:02,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:15:02,171 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 15:15:02,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:02,179 INFO L225 Difference]: With dead ends: 38 [2022-12-14 15:15:02,179 INFO L226 Difference]: Without dead ends: 24 [2022-12-14 15:15:02,182 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 15:15:02,185 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:02,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 17 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:15:02,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-14 15:15:02,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2022-12-14 15:15:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 19 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 15:15:02,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-12-14 15:15:02,215 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 3 [2022-12-14 15:15:02,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:02,215 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-12-14 15:15:02,216 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 15:15:02,216 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-12-14 15:15:02,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 15:15:02,216 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:02,216 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 15:15:02,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:15:02,217 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:15:02,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1364233112, now seen corresponding path program 1 times [2022-12-14 15:15:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:02,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404129395] [2022-12-14 15:15:02,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:02,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:02,290 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 15:15:02,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:02,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404129395] [2022-12-14 15:15:02,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404129395] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:15:02,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151895076] [2022-12-14 15:15:02,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:02,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:02,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:15:02,292 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:15:02,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:15:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:02,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:15:02,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:15:02,374 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 15:15:02,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:15:02,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151895076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:15:02,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:15:02,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2022-12-14 15:15:02,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996955588] [2022-12-14 15:15:02,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:15:02,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:15:02,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:02,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:15:02,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:15:02,377 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:15:02,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:02,400 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-12-14 15:15:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:15:02,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 15:15:02,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:02,401 INFO L225 Difference]: With dead ends: 24 [2022-12-14 15:15:02,401 INFO L226 Difference]: Without dead ends: 23 [2022-12-14 15:15:02,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 15:15:02,402 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 11 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:02,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 14 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:15:02,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-14 15:15:02,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2022-12-14 15:15:02,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.5) internal successors, (21), 18 states have internal predecessors, (21), 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 15:15:02,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 15:15:02,406 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 6 [2022-12-14 15:15:02,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:02,406 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 15:15:02,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:15:02,406 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 15:15:02,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:15:02,406 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:02,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:15:02,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:15:02,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-14 15:15:02,609 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:15:02,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:02,611 INFO L85 PathProgramCache]: Analyzing trace with hash 658514687, now seen corresponding path program 1 times [2022-12-14 15:15:02,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:02,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158374366] [2022-12-14 15:15:02,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:02,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:02,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:15:02,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:02,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158374366] [2022-12-14 15:15:02,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158374366] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:15:02,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674451868] [2022-12-14 15:15:02,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:02,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:02,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:15:02,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:15:02,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:15:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:02,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:15:02,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:15:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:15:02,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:15:02,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:15:02,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674451868] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:15:02,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [295534953] [2022-12-14 15:15:02,858 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 15:15:02,858 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:15:02,860 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:15:02,864 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:15:02,864 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:15:02,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:02,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:02,944 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-12-14 15:15:02,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 34 [2022-12-14 15:15:02,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:02,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:02,995 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:15:02,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 15:15:03,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:03,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 15:15:03,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:03,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:03,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:15:03,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:03,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:03,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:03,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:03,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:03,195 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-12-14 15:15:03,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 256 treesize of output 247 [2022-12-14 15:15:03,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 15:15:03,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:03,308 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:03,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:03,313 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:15:03,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [295534953] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:15:03,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:15:03,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 10 [2022-12-14 15:15:03,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985891867] [2022-12-14 15:15:03,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:15:03,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:15:03,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:03,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:15:03,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:15:03,444 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 15:15:03,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:03,486 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-12-14 15:15:03,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:15:03,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 15:15:03,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:03,487 INFO L225 Difference]: With dead ends: 33 [2022-12-14 15:15:03,487 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 15:15:03,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:15:03,488 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 28 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:03,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 20 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:15:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 15:15:03,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 21. [2022-12-14 15:15:03,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:15:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-12-14 15:15:03,492 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 7 [2022-12-14 15:15:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:03,492 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-12-14 15:15:03,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 15:15:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-12-14 15:15:03,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:15:03,493 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:03,493 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-12-14 15:15:03,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:15:03,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:03,694 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:15:03,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:03,695 INFO L85 PathProgramCache]: Analyzing trace with hash 658446533, now seen corresponding path program 1 times [2022-12-14 15:15:03,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:03,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902308026] [2022-12-14 15:15:03,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:03,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:15:03,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:03,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902308026] [2022-12-14 15:15:03,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902308026] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:15:03,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:15:03,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:15:03,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608067170] [2022-12-14 15:15:03,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:15:03,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:15:03,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:15:03,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:15:03,776 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 15:15:03,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:03,832 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-12-14 15:15:03,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:15:03,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 15:15:03,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:03,834 INFO L225 Difference]: With dead ends: 21 [2022-12-14 15:15:03,834 INFO L226 Difference]: Without dead ends: 20 [2022-12-14 15:15:03,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:15:03,836 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:03,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:15:03,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-14 15:15:03,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-12-14 15:15:03,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:15:03,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-14 15:15:03,841 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 7 [2022-12-14 15:15:03,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:03,842 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-14 15:15:03,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 15:15:03,842 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-14 15:15:03,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:15:03,843 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:03,843 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:15:03,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:15:03,843 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:15:03,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:03,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1599503945, now seen corresponding path program 1 times [2022-12-14 15:15:03,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:03,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772194452] [2022-12-14 15:15:03,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:03,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:03,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:15:03,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:03,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772194452] [2022-12-14 15:15:03,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772194452] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:15:03,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70387598] [2022-12-14 15:15:03,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:03,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:03,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:15:03,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:15:03,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:15:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:03,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:15:03,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:15:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:15:03,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:15:03,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:15:03,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70387598] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:15:03,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [13681549] [2022-12-14 15:15:03,959 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 15:15:03,959 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:15:03,959 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:15:03,960 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:15:03,960 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:15:03,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:03,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:03,996 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-12-14 15:15:03,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 34 [2022-12-14 15:15:04,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,037 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:15:04,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 15:15:04,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 15:15:04,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2022-12-14 15:15:04,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,134 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 15:15:04,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 261 treesize of output 252 [2022-12-14 15:15:04,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 15:15:04,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:04,229 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:04,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:04,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:04,253 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 15:15:04,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2022-12-14 15:15:04,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:04,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:04,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:04,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:04,325 INFO L321 Elim1Store]: treesize reduction 93, result has 10.6 percent of original size [2022-12-14 15:15:04,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 110 treesize of output 103 [2022-12-14 15:15:04,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:04,368 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:04,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:04,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:04,398 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:04,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:04,412 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:15:04,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [13681549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:15:04,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:15:04,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3, 3] total 11 [2022-12-14 15:15:04,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681199446] [2022-12-14 15:15:04,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:15:04,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:15:04,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:04,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:15:04,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-12-14 15:15:04,855 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:15:05,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:05,048 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-12-14 15:15:05,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:15:05,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 15:15:05,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:05,050 INFO L225 Difference]: With dead ends: 18 [2022-12-14 15:15:05,050 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 15:15:05,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:15:05,051 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:05,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 12 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:15:05,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 15:15:05,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2022-12-14 15:15:05,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 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 15:15:05,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-14 15:15:05,057 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2022-12-14 15:15:05,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:05,057 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-14 15:15:05,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:15:05,058 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 15:15:05,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 15:15:05,058 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:05,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:15:05,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:15:05,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:05,259 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:15:05,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:05,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1954989685, now seen corresponding path program 1 times [2022-12-14 15:15:05,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:05,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12992597] [2022-12-14 15:15:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:05,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:05,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:15:05,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:05,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12992597] [2022-12-14 15:15:05,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12992597] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:15:05,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683285752] [2022-12-14 15:15:05,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:05,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:05,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:15:05,326 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:15:05,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:15:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:05,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:15:05,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:15:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:15:05,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:15:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:15:05,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683285752] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:15:05,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [46641514] [2022-12-14 15:15:05,388 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 15:15:05,388 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:15:05,389 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:15:05,389 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:15:05,389 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:15:05,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,431 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:15:05,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 15:15:05,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2022-12-14 15:15:05,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 15:15:05,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:15:05,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,558 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:05,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,564 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-12-14 15:15:05,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 256 treesize of output 247 [2022-12-14 15:15:05,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 15:15:05,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:05,662 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:05,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:05,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:05,683 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 15:15:05,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2022-12-14 15:15:05,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:05,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:05,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:05,724 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:05,766 INFO L321 Elim1Store]: treesize reduction 110, result has 28.6 percent of original size [2022-12-14 15:15:05,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 94 treesize of output 111 [2022-12-14 15:15:05,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:05,814 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:05,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:05,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:05,838 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:05,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:05,850 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:15:06,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [46641514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:15:06,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:15:06,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 3, 3] total 12 [2022-12-14 15:15:06,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156047528] [2022-12-14 15:15:06,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:15:06,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:15:06,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:06,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:15:06,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:15:06,138 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 15:15:06,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:06,181 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-12-14 15:15:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:15:06,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 15:15:06,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:06,182 INFO L225 Difference]: With dead ends: 19 [2022-12-14 15:15:06,182 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 15:15:06,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:15:06,183 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 16 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:06,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 7 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:15:06,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 15:15:06,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 15:15:06,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 16 states have internal predecessors, (19), 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 15:15:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-14 15:15:06,187 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2022-12-14 15:15:06,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:06,187 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-14 15:15:06,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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 15:15:06,188 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-14 15:15:06,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 15:15:06,188 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:06,188 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:15:06,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 15:15:06,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:06,390 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:15:06,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:06,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1341262001, now seen corresponding path program 1 times [2022-12-14 15:15:06,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:06,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483596341] [2022-12-14 15:15:06,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:06,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:06,468 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:15:06,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:06,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483596341] [2022-12-14 15:15:06,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483596341] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:15:06,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98220762] [2022-12-14 15:15:06,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:06,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:06,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:15:06,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:15:06,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:15:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:06,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:15:06,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:15:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:15:06,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:15:06,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:15:06,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98220762] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:15:06,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [75176637] [2022-12-14 15:15:06,579 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-12-14 15:15:06,579 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:15:06,579 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:15:06,579 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:15:06,580 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:15:06,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,612 INFO L321 Elim1Store]: treesize reduction 37, result has 32.7 percent of original size [2022-12-14 15:15:06,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 34 [2022-12-14 15:15:06,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,645 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:15:06,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 15:15:06,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 15:15:06,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:15:06,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:06,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,736 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-12-14 15:15:06,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 256 treesize of output 247 [2022-12-14 15:15:06,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 15:15:06,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:06,816 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:06,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:06,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:06,832 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 15:15:06,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 40 [2022-12-14 15:15:06,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:06,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:06,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:06,869 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:06,882 INFO L321 Elim1Store]: treesize reduction 93, result has 10.6 percent of original size [2022-12-14 15:15:06,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 100 treesize of output 103 [2022-12-14 15:15:06,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:06,911 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:06,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:06,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:06,932 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:06,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:07,017 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:15:07,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [75176637] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:15:07,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:15:07,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3, 3, 3] total 12 [2022-12-14 15:15:07,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088892909] [2022-12-14 15:15:07,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:15:07,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:15:07,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:07,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:15:07,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-12-14 15:15:07,369 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 15:15:07,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:07,484 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-12-14 15:15:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:15:07,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) Word has length 14 [2022-12-14 15:15:07,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:07,484 INFO L225 Difference]: With dead ends: 17 [2022-12-14 15:15:07,484 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 15:15:07,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:15:07,485 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:07,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:15:07,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 15:15:07,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 15:15:07,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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 15:15:07,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-12-14 15:15:07,491 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 14 [2022-12-14 15:15:07,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:07,491 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-12-14 15:15:07,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 15:15:07,492 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-14 15:15:07,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 15:15:07,492 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:07,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:15:07,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 15:15:07,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 15:15:07,693 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:15:07,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:07,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1370550839, now seen corresponding path program 1 times [2022-12-14 15:15:07,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:07,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137470625] [2022-12-14 15:15:07,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:07,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:07,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:15:07,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:07,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137470625] [2022-12-14 15:15:07,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137470625] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:15:07,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48967903] [2022-12-14 15:15:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:07,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:07,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:15:07,747 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:15:07,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 15:15:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:07,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:15:07,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:15:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:15:07,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:15:07,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:15:07,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48967903] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:15:07,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [731272437] [2022-12-14 15:15:07,803 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-12-14 15:15:07,803 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:15:07,803 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:15:07,803 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:15:07,803 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:15:07,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,842 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 15:15:07,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 53 [2022-12-14 15:15:07,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 27 [2022-12-14 15:15:07,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 15:15:07,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:15:07,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:07,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:07,963 INFO L321 Elim1Store]: treesize reduction 34, result has 2.9 percent of original size [2022-12-14 15:15:07,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 256 treesize of output 247 [2022-12-14 15:15:07,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 15:15:08,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:08,036 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:08,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:08,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:08,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:08,051 INFO L321 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-12-14 15:15:08,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2022-12-14 15:15:08,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:08,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:15:08,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:08,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:08,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:08,119 INFO L321 Elim1Store]: treesize reduction 110, result has 28.6 percent of original size [2022-12-14 15:15:08,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 94 treesize of output 111 [2022-12-14 15:15:08,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:08,162 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:08,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:08,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:15:08,188 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 15:15:08,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 23 [2022-12-14 15:15:08,283 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:15:08,604 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '791#(and (<= 100000 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) (< 2147483646 |ULTIMATE.start_main_#t~post3#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 15:15:08,604 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:15:08,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:15:08,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-14 15:15:08,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986030588] [2022-12-14 15:15:08,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:15:08,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:15:08,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:08,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:15:08,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:15:08,605 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) 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 15:15:08,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:08,631 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-12-14 15:15:08,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:15:08,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) 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 15 [2022-12-14 15:15:08,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:08,632 INFO L225 Difference]: With dead ends: 38 [2022-12-14 15:15:08,632 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 15:15:08,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:15:08,633 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:08,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:15:08,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 15:15:08,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-12-14 15:15:08,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 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 15:15:08,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-12-14 15:15:08,637 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 15 [2022-12-14 15:15:08,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:08,637 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-12-14 15:15:08,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) 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 15:15:08,638 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-12-14 15:15:08,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 15:15:08,638 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:15:08,638 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:15:08,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 15:15:08,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 15:15:08,840 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 15:15:08,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:15:08,841 INFO L85 PathProgramCache]: Analyzing trace with hash 622562314, now seen corresponding path program 2 times [2022-12-14 15:15:08,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:15:08,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460829293] [2022-12-14 15:15:08,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:15:08,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:15:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:15:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-14 15:15:08,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:15:08,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460829293] [2022-12-14 15:15:08,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460829293] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:15:08,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100720699] [2022-12-14 15:15:08,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:15:08,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:15:08,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:15:08,926 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:15:08,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 15:15:08,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 15:15:08,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:15:08,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:15:08,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:15:08,974 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-12-14 15:15:08,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:15:08,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100720699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:15:08,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:15:08,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-12-14 15:15:08,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787855986] [2022-12-14 15:15:08,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:15:08,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:15:08,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:15:08,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:15:08,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:15:08,975 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 15:15:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:15:08,988 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-12-14 15:15:08,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:15:08,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) Word has length 24 [2022-12-14 15:15:08,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:15:08,988 INFO L225 Difference]: With dead ends: 25 [2022-12-14 15:15:08,988 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:15:08,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:15:08,989 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:15:08,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:15:08,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:15:08,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:15:08,990 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 15:15:08,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:15:08,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-12-14 15:15:08,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:15:08,990 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:15:08,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 15:15:08,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:15:08,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:15:08,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 15:15:08,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 15:15:08,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 15:15:08,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 15:15:08,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 15:15:08,993 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 15:15:08,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 15:15:09,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 15:15:09,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 15:15:09,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-12-14 15:15:09,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2022-12-14 15:15:09,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-12-14 15:15:09,558 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-14 15:15:09,558 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-14 15:15:09,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2022-12-14 15:15:09,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 15:15:09,558 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-12-14 15:15:09,558 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 15:15:09,559 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2022-12-14 15:15:09,559 INFO L899 garLoopResultBuilder]: For program point L26-3(line 26) no Hoare annotation was computed. [2022-12-14 15:15:09,559 INFO L899 garLoopResultBuilder]: For program point L26-4(line 26) no Hoare annotation was computed. [2022-12-14 15:15:09,559 INFO L895 garLoopResultBuilder]: At program point L26-5(lines 26 28) the Hoare annotation is: (and (let ((.cse0 (<= 100000 |ULTIMATE.start_main_~i~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse2 (= |ULTIMATE.start_main_~#b~0#1.offset| 0)) (.cse3 (<= |ULTIMATE.start_main_~i~0#1| 2147483647)) (.cse4 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse5 (= |#NULL.offset| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~x~0#1| 0)) (and .cse0 .cse1 .cse2 .cse3 (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) .cse4 .cse5 (<= 0 |ULTIMATE.start___VERIFIER_assert_~cond#1|) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|)))) (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 15:15:09,559 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2022-12-14 15:15:09,559 INFO L899 garLoopResultBuilder]: For program point L22-4(line 22) no Hoare annotation was computed. [2022-12-14 15:15:09,560 INFO L895 garLoopResultBuilder]: At program point L22-5(lines 22 24) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= |ULTIMATE.start_main_~#b~0#1.offset| 0) (<= |ULTIMATE.start_main_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~#a~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_main_~#b~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 15:15:09,560 INFO L895 garLoopResultBuilder]: At program point L18-2(lines 18 21) the Hoare annotation is: (let ((.cse3 (<= 1 |ULTIMATE.start_main_~i~0#1|))) (let ((.cse0 (let ((.cse4 (<= |ULTIMATE.start_main_~#b~0#1.offset| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|)) (.cse6 (<= |#NULL.offset| 0)) (.cse7 (<= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse8 (<= 0 |#NULL.offset|)) (.cse9 (<= 0 |ULTIMATE.start_main_~#b~0#1.offset|))) (or (and .cse4 (<= |ULTIMATE.start_main_~i~0#1| 0) .cse5 .cse6 (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse7 .cse8 .cse9) (and (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) .cse4 .cse3 (<= |ULTIMATE.start_main_~i~0#1| 2147483647) .cse5 .cse6 .cse7 .cse8 .cse9 (<= 0 |#StackHeapBarrier|))))) (.cse2 (= |#NULL.base| 0))) (or (let ((.cse1 (select |#memory_int| 1))) (and .cse0 (= 400000 (select |#length| |ULTIMATE.start_main_~#b~0#1.base|)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#a~0#1.base|) (= 2 (select |#length| 1)) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#b~0#1.base|) (= 400000 (select |#length| |ULTIMATE.start_main_~#a~0#1.base|)) (= (select |#valid| 1) 1) (= (select |#valid| |ULTIMATE.start_main_~#b~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse1 0) 48) (not (= |ULTIMATE.start_main_~#b~0#1.base| |ULTIMATE.start_main_~#a~0#1.base|)) (= 27 (select |#length| 2)) (= (select .cse1 1) 0) (< 0 |#StackHeapBarrier|) .cse2)) (and .cse0 .cse3 (<= 0 |ULTIMATE.start_main_~#b~0#1.base|) .cse2)))) [2022-12-14 15:15:09,563 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:15:09,564 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:15:09,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:15:09 BoogieIcfgContainer [2022-12-14 15:15:09,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:15:09,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:15:09,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:15:09,582 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:15:09,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:15:01" (3/4) ... [2022-12-14 15:15:09,584 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 15:15:09,590 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-14 15:15:09,591 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-14 15:15:09,591 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 15:15:09,591 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 15:15:09,607 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((100000 <= i && 0 <= a) && b == 0) && i <= 2147483647) && a == 0) && #NULL == 0) && x == 0) || (((((((((((100000 <= i && 0 <= a) && b == 0) && i <= 2147483647) && x <= 2147483647) && cond <= 1) && 1 <= x) && \old(cond) <= 1) && a == 0) && #NULL == 0) && 0 <= cond) && 0 <= \old(cond))) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 [2022-12-14 15:15:09,612 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:15:09,612 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:15:09,612 INFO L158 Benchmark]: Toolchain (without parser) took 8315.63ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 125.0MB in the beginning and 112.1MB in the end (delta: 12.9MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2022-12-14 15:15:09,613 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:15:09,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.31ms. Allocated memory is still 157.3MB. Free memory was 124.5MB in the beginning and 114.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 15:15:09,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.84ms. Allocated memory is still 157.3MB. Free memory was 114.5MB in the beginning and 113.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:15:09,613 INFO L158 Benchmark]: Boogie Preprocessor took 16.20ms. Allocated memory is still 157.3MB. Free memory was 113.1MB in the beginning and 111.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:15:09,613 INFO L158 Benchmark]: RCFGBuilder took 256.88ms. Allocated memory is still 157.3MB. Free memory was 111.6MB in the beginning and 99.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 15:15:09,614 INFO L158 Benchmark]: TraceAbstraction took 7790.59ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 98.3MB in the beginning and 115.2MB in the end (delta: -17.0MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2022-12-14 15:15:09,614 INFO L158 Benchmark]: Witness Printer took 30.34ms. Allocated memory is still 188.7MB. Free memory was 115.2MB in the beginning and 112.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 15:15:09,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 56.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.31ms. Allocated memory is still 157.3MB. Free memory was 124.5MB in the beginning and 114.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.84ms. Allocated memory is still 157.3MB. Free memory was 114.5MB in the beginning and 113.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.20ms. Allocated memory is still 157.3MB. Free memory was 113.1MB in the beginning and 111.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 256.88ms. Allocated memory is still 157.3MB. Free memory was 111.6MB in the beginning and 99.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7790.59ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 98.3MB in the beginning and 115.2MB in the end (delta: -17.0MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. * Witness Printer took 30.34ms. Allocated memory is still 188.7MB. Free memory was 115.2MB in the beginning and 112.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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, 17 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 248 IncrementalHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 48 mSDtfsCounter, 248 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 144 SyntacticMatches, 8 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=8, InterpolantAutomatonStates: 42, 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, 9 MinimizatonAttempts, 24 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 11 NumberOfFragments, 308 HoareAnnotationTreeSize, 3 FomulaSimplifications, 615 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 912 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 184 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 380 SizeOfPredicates, 1 NumberOfNonLiveVariables, 541 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 21 InterpolantComputations, 4 PerfectInterpolantSequences, 86/104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 1.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 40, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 115, TOOLS_POST_TIME: 1.5s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 115, TOOLS_QUANTIFIERELIM_TIME: 1.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 211, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 16, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 24, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 40, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 8, LOOP_SUMMARIZER_CACHE_MISSES: 8, LOOP_SUMMARIZER_OVERALL_TIME: 1.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 24, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 684, DAG_COMPRESSION_RETAINED_NODES: 135, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((((((((((0 <= a && b <= 0) && i <= 2147483647) && 0 <= a) && #NULL <= 0) && 0 <= i) && a <= 0) && 0 <= b) && 0 <= #NULL) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((b <= 0 && i <= 0) && 0 <= a) && #NULL <= 0) && 0 <= i) && a <= 0) && 0 <= #NULL) && 0 <= b) || (((((((((0 <= a && b <= 0) && 1 <= i) && i <= 2147483647) && 0 <= a) && #NULL <= 0) && a <= 0) && 0 <= #NULL) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown)) && 400000 == unknown-#length-unknown[b]) && unknown-#StackHeapBarrier-unknown < a) && 2 == unknown-#length-unknown[1]) && unknown-#StackHeapBarrier-unknown < b) && 400000 == unknown-#length-unknown[a]) && \valid[1] == 1) && \valid[b] == 1) && \valid[a] == 1) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && !(b == a)) && 27 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((b <= 0 && i <= 0) && 0 <= a) && #NULL <= 0) && 0 <= i) && a <= 0) && 0 <= #NULL) && 0 <= b) || (((((((((0 <= a && b <= 0) && 1 <= i) && i <= 2147483647) && 0 <= a) && #NULL <= 0) && a <= 0) && 0 <= #NULL) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown)) && 1 <= i) && 0 <= b) && #NULL == 0) - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (((((((((100000 <= i && 0 <= a) && b == 0) && i <= 2147483647) && a == 0) && #NULL == 0) && x == 0) || (((((((((((100000 <= i && 0 <= a) && b == 0) && i <= 2147483647) && x <= 2147483647) && cond <= 1) && 1 <= x) && \old(cond) <= 1) && a == 0) && #NULL == 0) && 0 <= cond) && 0 <= \old(cond))) && 0 <= b) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 15:15:09,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6bc73c4-e994-4ca1-a2cd-f977f7d764ca/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