./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/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_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/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_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/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 1fb17cc8fe5a0faedd7397d9dad19c9fd18716037f6fbcc01ca4a50f1481e06c --- 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 13:38:16,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:38:16,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:38:16,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:38:16,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:38:16,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:38:16,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:38:16,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:38:16,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:38:16,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:38:16,516 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:38:16,517 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:38:16,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:38:16,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:38:16,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:38:16,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:38:16,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:38:16,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:38:16,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:38:16,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:38:16,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:38:16,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:38:16,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:38:16,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:38:16,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:38:16,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:38:16,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:38:16,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:38:16,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:38:16,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:38:16,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:38:16,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:38:16,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:38:16,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:38:16,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:38:16,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:38:16,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:38:16,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:38:16,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:38:16,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:38:16,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:38:16,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 13:38:16,560 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:38:16,561 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:38:16,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:38:16,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:38:16,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:38:16,568 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:38:16,568 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:38:16,568 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:38:16,568 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:38:16,568 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:38:16,568 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:38:16,569 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:38:16,569 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:38:16,569 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:38:16,569 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:38:16,569 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:38:16,570 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:38:16,570 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:38:16,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:38:16,571 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:38:16,571 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:38:16,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:38:16,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:38:16,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:38:16,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:38:16,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:38:16,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:38:16,572 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:38:16,572 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:38:16,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:38:16,573 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:38:16,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:38:16,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:38:16,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:38:16,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:38:16,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:38:16,574 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:38:16,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:38:16,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:38:16,574 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:38:16,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:38:16,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:38:16,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:38:16,575 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_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fb17cc8fe5a0faedd7397d9dad19c9fd18716037f6fbcc01ca4a50f1481e06c [2022-12-14 13:38:16,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:38:16,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:38:16,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:38:16,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:38:16,804 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:38:16,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c [2022-12-14 13:38:19,442 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:38:19,560 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:38:19,561 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/sv-benchmarks/c/memsafety-ext3/getNumbers1-2.c [2022-12-14 13:38:19,565 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/data/27e48937b/3934e7281f374432a2b08f7adb51edaa/FLAG8cb457458 [2022-12-14 13:38:19,576 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/data/27e48937b/3934e7281f374432a2b08f7adb51edaa [2022-12-14 13:38:19,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:38:19,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:38:19,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:38:19,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:38:19,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:38:19,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1514fcc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19, skipping insertion in model container [2022-12-14 13:38:19,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:38:19,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:38:19,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:38:19,710 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:38:19,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:38:19,732 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:38:19,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19 WrapperNode [2022-12-14 13:38:19,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:38:19,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:38:19,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:38:19,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:38:19,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,758 INFO L138 Inliner]: procedures = 9, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2022-12-14 13:38:19,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:38:19,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:38:19,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:38:19,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:38:19,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,775 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:38:19,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:38:19,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:38:19,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:38:19,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (1/1) ... [2022-12-14 13:38:19,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:38:19,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:38:19,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:38:19,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:38:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:38:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:38:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:38:19,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:38:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:38:19,892 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:38:19,894 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:38:19,973 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:38:19,994 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:38:19,994 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 13:38:19,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:19 BoogieIcfgContainer [2022-12-14 13:38:19,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:38:20,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:38:20,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:38:20,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:38:20,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:38:19" (1/3) ... [2022-12-14 13:38:20,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7ada6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:38:20, skipping insertion in model container [2022-12-14 13:38:20,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:19" (2/3) ... [2022-12-14 13:38:20,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7ada6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:38:20, skipping insertion in model container [2022-12-14 13:38:20,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:19" (3/3) ... [2022-12-14 13:38:20,006 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers1-2.c [2022-12-14 13:38:20,026 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:38:20,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 13:38:20,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:38:20,080 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;@55cecca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:38:20,080 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 13:38:20,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 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 13:38:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 13:38:20,090 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:20,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 13:38:20,091 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 13:38:20,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:20,096 INFO L85 PathProgramCache]: Analyzing trace with hash 74319, now seen corresponding path program 1 times [2022-12-14 13:38:20,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:20,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318080921] [2022-12-14 13:38:20,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:20,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:20,249 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 13:38:20,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:38:20,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318080921] [2022-12-14 13:38:20,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318080921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:20,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:38:20,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:38:20,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083641203] [2022-12-14 13:38:20,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:20,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:38:20,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:38:20,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:38:20,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:38:20,292 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 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) 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 13:38:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:20,322 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2022-12-14 13:38:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:38:20,324 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 13:38:20,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:20,330 INFO L225 Difference]: With dead ends: 12 [2022-12-14 13:38:20,330 INFO L226 Difference]: Without dead ends: 10 [2022-12-14 13:38:20,332 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 13:38:20,334 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:20,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:20,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-12-14 13:38:20,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-12-14 13:38:20,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 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 13:38:20,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-12-14 13:38:20,355 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 3 [2022-12-14 13:38:20,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:20,356 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-12-14 13:38:20,356 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 13:38:20,356 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-12-14 13:38:20,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:38:20,356 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:20,356 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:38:20,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:38:20,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 13:38:20,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:20,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2344283, now seen corresponding path program 1 times [2022-12-14 13:38:20,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:20,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105770738] [2022-12-14 13:38:20,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:20,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:20,390 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 13:38:20,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:38:20,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105770738] [2022-12-14 13:38:20,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105770738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:20,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:38:20,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:38:20,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965833574] [2022-12-14 13:38:20,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:20,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:38:20,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:38:20,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:38:20,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:38:20,394 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:20,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:20,414 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2022-12-14 13:38:20,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:38:20,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 13:38:20,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:20,415 INFO L225 Difference]: With dead ends: 19 [2022-12-14 13:38:20,415 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 13:38:20,416 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 13:38:20,417 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:20,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:20,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 13:38:20,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 13:38:20,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-14 13:38:20,421 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2022-12-14 13:38:20,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:20,422 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-14 13:38:20,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-14 13:38:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 13:38:20,422 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:20,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:38:20,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:38:20,423 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 13:38:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:20,423 INFO L85 PathProgramCache]: Analyzing trace with hash -82898775, now seen corresponding path program 1 times [2022-12-14 13:38:20,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:20,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334628118] [2022-12-14 13:38:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:20,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:20,474 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 13:38:20,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:38:20,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334628118] [2022-12-14 13:38:20,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334628118] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:38:20,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086374070] [2022-12-14 13:38:20,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:20,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:38:20,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:38:20,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:38:20,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:38:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:20,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:38:20,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:38:20,559 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 13:38:20,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:38:20,580 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 13:38:20,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086374070] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:38:20,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [296781819] [2022-12-14 13:38:20,595 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-12-14 13:38:20,595 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:38:20,598 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:38:20,602 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:38:20,602 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:38:20,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-14 13:38:20,663 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 0 case distinctions, treesize of input 22 treesize of output 17 [2022-12-14 13:38:20,722 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 0 case distinctions, treesize of input 100 treesize of output 93 [2022-12-14 13:38:20,786 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 13:38:20,809 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 13:38:20,814 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:38:20,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [296781819] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:20,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:38:20,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3, 3, 3] total 9 [2022-12-14 13:38:20,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938905369] [2022-12-14 13:38:20,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:20,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 13:38:20,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:38:20,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 13:38:20,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 13:38:20,910 INFO L87 Difference]: Start difference. First operand 13 states and 14 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 13:38:20,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:20,941 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-12-14 13:38:20,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:38:20,942 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 13:38:20,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:20,942 INFO L225 Difference]: With dead ends: 18 [2022-12-14 13:38:20,942 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 13:38:20,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 13:38:20,944 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:20,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:20,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 13:38:20,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2022-12-14 13:38:20,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:20,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-14 13:38:20,949 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2022-12-14 13:38:20,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:20,949 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-14 13:38:20,949 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 13:38:20,950 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-14 13:38:20,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:38:20,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:20,950 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:38:20,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:38:21,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:38:21,151 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-14 13:38:21,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:21,152 INFO L85 PathProgramCache]: Analyzing trace with hash -31146034, now seen corresponding path program 1 times [2022-12-14 13:38:21,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:21,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310949400] [2022-12-14 13:38:21,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:21,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:21,185 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 13:38:21,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:38:21,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310949400] [2022-12-14 13:38:21,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310949400] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:38:21,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399031316] [2022-12-14 13:38:21,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:21,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:38:21,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:38:21,187 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:38:21,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:38:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:21,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 13:38:21,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:38:21,228 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 13:38:21,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:38:21,241 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 13:38:21,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399031316] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:38:21,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1087748617] [2022-12-14 13:38:21,243 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-12-14 13:38:21,243 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:38:21,244 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:38:21,244 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:38:21,244 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:38:21,253 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 7 treesize of output 6 [2022-12-14 13:38:21,262 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 0 case distinctions, treesize of input 22 treesize of output 17 [2022-12-14 13:38:21,284 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 0 case distinctions, treesize of input 107 treesize of output 100 [2022-12-14 13:38:21,328 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 13:38:21,456 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 13:38:21,463 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:38:21,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1087748617] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:21,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:38:21,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3, 3, 3] total 10 [2022-12-14 13:38:21,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440586993] [2022-12-14 13:38:21,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:21,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 13:38:21,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:38:21,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 13:38:21,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:38:21,832 INFO L87 Difference]: Start difference. First operand 13 states and 14 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 13:38:21,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:21,861 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-12-14 13:38:21,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 13:38:21,862 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 13:38:21,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:21,862 INFO L225 Difference]: With dead ends: 13 [2022-12-14 13:38:21,862 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 13:38:21,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:38:21,864 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:21,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:21,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 13:38:21,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 13:38:21,866 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 13:38:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 13:38:21,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-12-14 13:38:21,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:21,866 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 13:38:21,866 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 13:38:21,866 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 13:38:21,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 13:38:21,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-14 13:38:21,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-14 13:38:21,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-14 13:38:21,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-14 13:38:21,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:38:22,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:38:22,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 13:38:22,328 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-12-14 13:38:22,328 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 13:38:22,328 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-12-14 13:38:22,328 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2022-12-14 13:38:22,328 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2022-12-14 13:38:22,329 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 21) the Hoare annotation is: (and (let ((.cse0 (<= 10 |ULTIMATE.start_getNumbers_~i~0#1|)) (.cse1 (= |~#array~0.offset| 0)) (.cse2 (= |~#array~0.base| 1)) (.cse3 (= |#NULL.offset| 0))) (or (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 0) (= |ULTIMATE.start_getNumbers_#res#1.offset| |ULTIMATE.start_main_~numbers~0#1.offset|) (= |ULTIMATE.start_getNumbers_#res#1.offset| |~#array~0.offset|) (= |ULTIMATE.start_getNumbers_#res#1.base| |~#array~0.base|) .cse1 .cse2 (= |ULTIMATE.start_getNumbers_#res#1.base| |ULTIMATE.start_main_~numbers~0#1.base|) .cse3) (and .cse0 (<= |ULTIMATE.start_main_~numbers~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~numbers~0#1.offset|) (<= 1 |ULTIMATE.start_getNumbers_#res#1.base|) (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 0 |ULTIMATE.start_getNumbers_#res#1.offset|) (<= |ULTIMATE.start_getNumbers_#res#1.offset| 0) .cse1 (<= |ULTIMATE.start_main_~numbers~0#1.base| 1) (<= 1 |ULTIMATE.start_main_~numbers~0#1.base|) (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse2 .cse3 (<= |ULTIMATE.start_getNumbers_#res#1.base| 1)))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 13:38:22,329 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 13:38:22,329 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-12-14 13:38:22,329 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-12-14 13:38:22,329 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 8 10) no Hoare annotation was computed. [2022-12-14 13:38:22,329 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-12-14 13:38:22,329 INFO L895 garLoopResultBuilder]: At program point L8-4(lines 8 10) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_getNumbers_~i~0#1|) (= |~#array~0.offset| 0) (= |~#array~0.base| 1) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-12-14 13:38:22,331 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 13:38:22,333 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:38:22,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:38:22 BoogieIcfgContainer [2022-12-14 13:38:22,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:38:22,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:38:22,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:38:22,346 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:38:22,346 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:19" (3/4) ... [2022-12-14 13:38:22,348 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 13:38:22,354 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 13:38:22,354 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 13:38:22,355 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 13:38:22,371 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((10 <= i && i == 0) && \result == numbers) && \result == array) && \result == array) && array == 0) && array == 1) && \result == numbers) && #NULL == 0) || (((((((((((((10 <= i && numbers <= 0) && 0 <= numbers) && 1 <= \result) && i <= 2147483647) && 0 <= \result) && \result <= 0) && array == 0) && numbers <= 1) && 1 <= numbers) && 1 <= i) && array == 1) && #NULL == 0) && \result <= 1)) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 [2022-12-14 13:38:22,375 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:38:22,375 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:38:22,376 INFO L158 Benchmark]: Toolchain (without parser) took 2796.88ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 76.9MB in the beginning and 82.6MB in the end (delta: -5.7MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2022-12-14 13:38:22,376 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:38:22,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.85ms. Allocated memory is still 109.1MB. Free memory was 76.6MB in the beginning and 66.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 13:38:22,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.78ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 65.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:38:22,376 INFO L158 Benchmark]: Boogie Preprocessor took 18.03ms. Allocated memory is still 109.1MB. Free memory was 65.4MB in the beginning and 64.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:38:22,376 INFO L158 Benchmark]: RCFGBuilder took 218.35ms. Allocated memory is still 109.1MB. Free memory was 64.3MB in the beginning and 53.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 13:38:22,377 INFO L158 Benchmark]: TraceAbstraction took 2345.51ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 52.5MB in the beginning and 84.7MB in the end (delta: -32.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:38:22,377 INFO L158 Benchmark]: Witness Printer took 29.46ms. Allocated memory is still 132.1MB. Free memory was 84.7MB in the beginning and 82.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:38:22,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.85ms. Allocated memory is still 109.1MB. Free memory was 76.6MB in the beginning and 66.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.78ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 65.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.03ms. Allocated memory is still 109.1MB. Free memory was 65.4MB in the beginning and 64.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 218.35ms. Allocated memory is still 109.1MB. Free memory was 64.3MB in the beginning and 53.5MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2345.51ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 52.5MB in the beginning and 84.7MB in the end (delta: -32.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 29.46ms. Allocated memory is still 132.1MB. Free memory was 84.7MB in the beginning and 82.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 11 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 98 HoareAnnotationTreeSize, 2 FomulaSimplifications, 42 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 177 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 6/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 13, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 42, TOOLS_POST_TIME: 0.3s, 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: 42, TOOLS_QUANTIFIERELIM_TIME: 0.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 80, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 13, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 0.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 9, 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: 115, DAG_COMPRESSION_RETAINED_NODES: 53, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((((((((((10 <= i && i == 0) && \result == numbers) && \result == array) && \result == array) && array == 0) && array == 1) && \result == numbers) && #NULL == 0) || (((((((((((((10 <= i && numbers <= 0) && 0 <= numbers) && 1 <= \result) && i <= 2147483647) && 0 <= \result) && \result <= 0) && array == 0) && numbers <= 1) && 1 <= numbers) && 1 <= i) && array == 1) && #NULL == 0) && \result <= 1)) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: ((((0 <= i && array == 0) && array == 1) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-12-14 13:38:22,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f104fee9-30e8-4fba-8fc5-ef39ac1a7904/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE