./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/res1f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 005c3063cbff7bf2cfa5e3917587bb3bc67d690255843cf3936ae565f460b1c1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:13:03,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:13:03,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:13:03,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:13:03,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:13:03,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:13:03,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:13:03,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:13:03,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:13:03,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:13:03,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:13:03,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:13:03,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:13:03,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:13:03,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:13:03,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:13:03,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:13:03,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:13:03,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:13:03,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:13:03,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:13:03,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:13:03,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:13:03,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:13:03,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:13:03,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:13:03,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:13:03,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:13:03,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:13:03,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:13:03,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:13:03,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:13:03,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:13:03,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:13:03,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:13:03,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:13:03,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:13:03,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:13:03,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:13:03,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:13:03,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:13:03,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:13:03,401 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:13:03,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:13:03,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:13:03,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:13:03,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:13:03,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:13:03,403 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:13:03,404 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:13:03,404 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:13:03,404 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:13:03,404 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:13:03,405 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:13:03,405 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:13:03,405 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:13:03,405 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:13:03,406 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:13:03,406 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:13:03,406 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:13:03,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:13:03,407 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:13:03,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:13:03,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:13:03,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:13:03,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:13:03,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:13:03,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:13:03,409 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:13:03,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:13:03,409 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:13:03,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:13:03,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:13:03,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:13:03,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:13:03,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:13:03,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:13:03,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:13:03,411 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:13:03,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:13:03,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:13:03,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:13:03,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:13:03,412 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 005c3063cbff7bf2cfa5e3917587bb3bc67d690255843cf3936ae565f460b1c1 [2021-11-23 02:13:03,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:13:03,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:13:03,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:13:03,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:13:03,701 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:13:03,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/array-fpi/res1f.c [2021-11-23 02:13:03,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/data/899668bcc/14a0a5b2e9a7427f804c1cd64b636732/FLAG757783c99 [2021-11-23 02:13:04,254 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:13:04,255 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/sv-benchmarks/c/array-fpi/res1f.c [2021-11-23 02:13:04,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/data/899668bcc/14a0a5b2e9a7427f804c1cd64b636732/FLAG757783c99 [2021-11-23 02:13:04,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/data/899668bcc/14a0a5b2e9a7427f804c1cd64b636732 [2021-11-23 02:13:04,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:13:04,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:13:04,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:13:04,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:13:04,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:13:04,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:04,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a410457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04, skipping insertion in model container [2021-11-23 02:13:04,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:04,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:13:04,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:13:04,839 WARN L230 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_e1a463fc-9f4d-4208-adc8-210e9aca55a7/sv-benchmarks/c/array-fpi/res1f.c[588,601] [2021-11-23 02:13:04,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:13:04,891 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:13:04,906 WARN L230 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_e1a463fc-9f4d-4208-adc8-210e9aca55a7/sv-benchmarks/c/array-fpi/res1f.c[588,601] [2021-11-23 02:13:04,934 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:13:04,948 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:13:04,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04 WrapperNode [2021-11-23 02:13:04,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:13:04,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:13:04,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:13:04,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:13:04,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:04,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:05,003 INFO L137 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-11-23 02:13:05,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:13:05,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:13:05,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:13:05,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:13:05,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:05,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:05,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:05,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:05,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:05,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:05,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:05,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:13:05,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:13:05,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:13:05,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:13:05,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (1/1) ... [2021-11-23 02:13:05,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:13:05,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:13:05,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:13:05,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:13:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:13:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:13:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:13:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:13:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:13:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:13:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:13:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:13:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:13:05,200 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:13:05,201 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:13:05,349 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:13:05,384 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:13:05,389 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 02:13:05,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:05 BoogieIcfgContainer [2021-11-23 02:13:05,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:13:05,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:13:05,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:13:05,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:13:05,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:13:04" (1/3) ... [2021-11-23 02:13:05,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321f2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:05, skipping insertion in model container [2021-11-23 02:13:05,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:04" (2/3) ... [2021-11-23 02:13:05,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321f2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:05, skipping insertion in model container [2021-11-23 02:13:05,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:05" (3/3) ... [2021-11-23 02:13:05,419 INFO L111 eAbstractionObserver]: Analyzing ICFG res1f.c [2021-11-23 02:13:05,424 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:13:05,425 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:13:05,509 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:13:05,519 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:13:05,520 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:13:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:13:05,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 02:13:05,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:05,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:05,539 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:13:05,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:05,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1860276480, now seen corresponding path program 1 times [2021-11-23 02:13:05,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:05,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066280489] [2021-11-23 02:13:05,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:05,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:13:05,733 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:05,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066280489] [2021-11-23 02:13:05,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066280489] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:05,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:05,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:13:05,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165693913] [2021-11-23 02:13:05,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:05,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:13:05,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:05,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:13:05,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:13:05,803 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:13:05,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:05,880 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2021-11-23 02:13:05,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:13:05,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 02:13:05,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:05,890 INFO L225 Difference]: With dead ends: 22 [2021-11-23 02:13:05,891 INFO L226 Difference]: Without dead ends: 10 [2021-11-23 02:13:05,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:13:05,908 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:05,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:13:05,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-11-23 02:13:05,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-11-23 02:13:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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) [2021-11-23 02:13:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-11-23 02:13:05,939 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 13 transitions. Word has length 8 [2021-11-23 02:13:05,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:05,940 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-11-23 02:13:05,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:13:05,940 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2021-11-23 02:13:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:13:05,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:05,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:05,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:13:05,941 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:13:05,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:05,942 INFO L85 PathProgramCache]: Analyzing trace with hash 509978442, now seen corresponding path program 1 times [2021-11-23 02:13:05,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:05,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709290281] [2021-11-23 02:13:05,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:05,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:13:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:13:06,026 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:13:06,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709290281] [2021-11-23 02:13:06,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709290281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:13:06,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:13:06,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:13:06,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015943460] [2021-11-23 02:13:06,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:13:06,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:13:06,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:13:06,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:13:06,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:13:06,033 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-11-23 02:13:06,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:13:06,070 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2021-11-23 02:13:06,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:13:06,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 9 [2021-11-23 02:13:06,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:13:06,072 INFO L225 Difference]: With dead ends: 18 [2021-11-23 02:13:06,072 INFO L226 Difference]: Without dead ends: 13 [2021-11-23 02:13:06,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:13:06,075 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:13:06,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:13:06,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-23 02:13:06,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-23 02:13:06,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2021-11-23 02:13:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-11-23 02:13:06,088 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2021-11-23 02:13:06,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:13:06,088 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-11-23 02:13:06,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2021-11-23 02:13:06,089 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-23 02:13:06,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 02:13:06,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:13:06,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:13:06,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:13:06,095 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:13:06,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:13:06,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1718165419, now seen corresponding path program 1 times [2021-11-23 02:13:06,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:13:06,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333762737] [2021-11-23 02:13:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:13:06,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:13:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:13:06,197 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 02:13:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:13:06,313 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 02:13:06,314 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 02:13:06,315 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:13:06,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:13:06,329 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 02:13:06,332 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:13:06,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:13:06 BoogieIcfgContainer [2021-11-23 02:13:06,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:13:06,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:13:06,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:13:06,380 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:13:06,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:05" (3/4) ... [2021-11-23 02:13:06,382 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 02:13:06,424 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1a463fc-9f4d-4208-adc8-210e9aca55a7/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:13:06,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:13:06,425 INFO L158 Benchmark]: Toolchain (without parser) took 1796.52ms. Allocated memory is still 119.5MB. Free memory was 85.3MB in the beginning and 82.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:13:06,426 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 81.8MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:13:06,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.36ms. Allocated memory is still 119.5MB. Free memory was 85.0MB in the beginning and 94.6MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 02:13:06,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.73ms. Allocated memory is still 119.5MB. Free memory was 94.6MB in the beginning and 92.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:13:06,427 INFO L158 Benchmark]: Boogie Preprocessor took 39.27ms. Allocated memory is still 119.5MB. Free memory was 92.8MB in the beginning and 91.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:13:06,428 INFO L158 Benchmark]: RCFGBuilder took 352.65ms. Allocated memory is still 119.5MB. Free memory was 91.6MB in the beginning and 79.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 02:13:06,428 INFO L158 Benchmark]: TraceAbstraction took 979.93ms. Allocated memory is still 119.5MB. Free memory was 78.6MB in the beginning and 84.3MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:13:06,429 INFO L158 Benchmark]: Witness Printer took 45.08ms. Allocated memory is still 119.5MB. Free memory was 84.3MB in the beginning and 82.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:13:06,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 81.8MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.36ms. Allocated memory is still 119.5MB. Free memory was 85.0MB in the beginning and 94.6MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.73ms. Allocated memory is still 119.5MB. Free memory was 94.6MB in the beginning and 92.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.27ms. Allocated memory is still 119.5MB. Free memory was 92.8MB in the beginning and 91.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.65ms. Allocated memory is still 119.5MB. Free memory was 91.6MB in the beginning and 79.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 979.93ms. Allocated memory is still 119.5MB. Free memory was 78.6MB in the beginning and 84.3MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.08ms. Allocated memory is still 119.5MB. Free memory was 84.3MB in the beginning and 82.2MB 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L32] sum[0] = 1 [L33] i=0 VAL [a={-3:0}, b={-2:0}, i=0, N=1, sum={5:0}] [L33] COND TRUE i