./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41c9705134faa9e28eba566071c8a538a7da12abc5ccedccf4ff4ee4f7173585 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:34:45,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:34:45,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:34:45,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:34:45,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:34:45,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:34:45,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:34:45,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:34:45,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:34:45,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:34:45,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:34:45,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:34:45,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:34:45,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:34:45,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:34:45,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:34:45,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:34:45,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:34:45,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:34:45,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:34:45,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:34:45,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:34:45,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:34:45,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:34:45,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:34:45,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:34:45,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:34:45,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:34:45,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:34:45,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:34:45,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:34:45,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:34:45,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:34:45,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:34:45,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:34:45,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:34:45,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:34:45,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:34:45,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:34:45,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:34:45,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:34:45,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 05:34:45,587 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:34:45,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:34:45,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:34:45,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:34:45,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:34:45,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:34:45,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:34:45,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:34:45,591 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:34:45,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:34:45,593 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:34:45,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:34:45,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:34:45,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:34:45,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:34:45,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:34:45,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:34:45,595 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:34:45,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:34:45,595 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:34:45,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:34:45,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:34:45,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:34:45,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:34:45,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:34:45,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:34:45,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:34:45,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:34:45,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:34:45,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:34:45,600 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:34:45,601 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:34:45,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:34:45,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:34:45,602 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_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41c9705134faa9e28eba566071c8a538a7da12abc5ccedccf4ff4ee4f7173585 [2021-11-20 05:34:45,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:34:45,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:34:45,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:34:45,996 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:34:45,997 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:34:45,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/recursive-simple/sum_non_eq-3.c [2021-11-20 05:34:46,086 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/data/06b2e6750/dcad5b10e7674610bee06b9eb31dd49a/FLAGf158b28fa [2021-11-20 05:34:46,582 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:34:46,583 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/sv-benchmarks/c/recursive-simple/sum_non_eq-3.c [2021-11-20 05:34:46,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/data/06b2e6750/dcad5b10e7674610bee06b9eb31dd49a/FLAGf158b28fa [2021-11-20 05:34:46,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/data/06b2e6750/dcad5b10e7674610bee06b9eb31dd49a [2021-11-20 05:34:46,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:34:46,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:34:46,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:34:46,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:34:46,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:34:46,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:34:46" (1/1) ... [2021-11-20 05:34:46,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef6c47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:46, skipping insertion in model container [2021-11-20 05:34:46,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:34:46" (1/1) ... [2021-11-20 05:34:47,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:34:47,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:34:47,215 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_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/sv-benchmarks/c/recursive-simple/sum_non_eq-3.c[628,641] [2021-11-20 05:34:47,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:34:47,235 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:34:47,252 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_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/sv-benchmarks/c/recursive-simple/sum_non_eq-3.c[628,641] [2021-11-20 05:34:47,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:34:47,268 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:34:47,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47 WrapperNode [2021-11-20 05:34:47,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:34:47,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:34:47,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:34:47,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:34:47,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (1/1) ... [2021-11-20 05:34:47,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (1/1) ... [2021-11-20 05:34:47,306 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-11-20 05:34:47,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:34:47,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:34:47,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:34:47,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:34:47,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (1/1) ... [2021-11-20 05:34:47,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (1/1) ... [2021-11-20 05:34:47,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (1/1) ... [2021-11-20 05:34:47,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (1/1) ... [2021-11-20 05:34:47,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (1/1) ... [2021-11-20 05:34:47,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (1/1) ... [2021-11-20 05:34:47,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (1/1) ... [2021-11-20 05:34:47,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:34:47,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:34:47,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:34:47,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:34:47,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (1/1) ... [2021-11-20 05:34:47,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:34:47,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:34:47,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:34:47,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:34:47,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:34:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:34:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:34:47,445 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-11-20 05:34:47,445 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-11-20 05:34:47,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:34:47,524 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:34:47,527 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:34:47,677 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:34:47,684 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:34:47,686 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:34:47,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:34:47 BoogieIcfgContainer [2021-11-20 05:34:47,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:34:47,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:34:47,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:34:47,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:34:47,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:34:46" (1/3) ... [2021-11-20 05:34:47,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1de5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:34:47, skipping insertion in model container [2021-11-20 05:34:47,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:34:47" (2/3) ... [2021-11-20 05:34:47,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1de5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:34:47, skipping insertion in model container [2021-11-20 05:34:47,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:34:47" (3/3) ... [2021-11-20 05:34:47,704 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-3.c [2021-11-20 05:34:47,715 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:34:47,715 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 05:34:47,766 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:34:47,775 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=PETRI_NET, 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 [2021-11-20 05:34:47,775 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 05:34:47,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 05:34:47,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 05:34:47,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:34:47,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:34:47,800 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 05:34:47,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:34:47,807 INFO L85 PathProgramCache]: Analyzing trace with hash -358017204, now seen corresponding path program 1 times [2021-11-20 05:34:47,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:34:47,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430408344] [2021-11-20 05:34:47,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:34:47,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:34:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:34:47,917 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:34:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:34:47,964 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:34:47,967 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 05:34:47,968 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 05:34:47,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:34:47,975 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 05:34:47,979 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:34:48,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:34:48 BoogieIcfgContainer [2021-11-20 05:34:48,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:34:48,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:34:48,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:34:48,005 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:34:48,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:34:47" (3/4) ... [2021-11-20 05:34:48,007 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 05:34:48,049 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 05:34:48,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:34:48,051 INFO L158 Benchmark]: Toolchain (without parser) took 1067.47ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 73.0MB in the beginning and 79.2MB in the end (delta: -6.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2021-11-20 05:34:48,051 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:34:48,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.52ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 72.8MB in the beginning and 105.9MB in the end (delta: -33.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:34:48,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.21ms. Allocated memory is still 130.0MB. Free memory was 105.9MB in the beginning and 104.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:34:48,054 INFO L158 Benchmark]: Boogie Preprocessor took 18.63ms. Allocated memory is still 130.0MB. Free memory was 104.3MB in the beginning and 103.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:34:48,055 INFO L158 Benchmark]: RCFGBuilder took 364.60ms. Allocated memory is still 130.0MB. Free memory was 103.3MB in the beginning and 94.8MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:34:48,056 INFO L158 Benchmark]: TraceAbstraction took 309.82ms. Allocated memory is still 130.0MB. Free memory was 94.3MB in the beginning and 81.2MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 05:34:48,056 INFO L158 Benchmark]: Witness Printer took 45.37ms. Allocated memory is still 130.0MB. Free memory was 80.7MB in the beginning and 79.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:34:48,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory is still 60.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.52ms. Allocated memory was 102.8MB in the beginning and 130.0MB in the end (delta: 27.3MB). Free memory was 72.8MB in the beginning and 105.9MB in the end (delta: -33.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.21ms. Allocated memory is still 130.0MB. Free memory was 105.9MB in the beginning and 104.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.63ms. Allocated memory is still 130.0MB. Free memory was 104.3MB in the beginning and 103.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 364.60ms. Allocated memory is still 130.0MB. Free memory was 103.3MB in the beginning and 94.8MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 309.82ms. Allocated memory is still 130.0MB. Free memory was 94.3MB in the beginning and 81.2MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 45.37ms. Allocated memory is still 130.0MB. Free memory was 80.7MB in the beginning and 79.2MB in the end (delta: 1.6MB). 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] unsigned int a = __VERIFIER_nondet_uint(); [L16] unsigned int b = __VERIFIER_nondet_uint(); [L17] CALL, EXPR sum(a, b) VAL [\old(m)=0, \old(n)=0] [L7] COND TRUE n == 0 [L8] return m; VAL [\old(m)=0, \old(n)=0, \result=0, m=0, n=0] [L17] RET, EXPR sum(a, b) VAL [a=0, b=0, sum(a, b)=0] [L17] unsigned int result = sum(a, b); [L18] COND TRUE result == a + b VAL [a=0, b=0, result=0] [L19] reach_error() VAL [a=0, b=0, result=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-20 05:34:48,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9944a6eb-d9ca-4169-b1a0-94c5552ad15c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE