./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn2f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 21b475462fcf81a6a340c34270a285fecf0d0ad8 ............................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:32:58,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:32:58,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:32:58,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:32:58,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:32:58,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:32:58,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:32:58,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:32:58,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:32:58,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:32:58,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:32:58,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:32:58,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:32:58,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:32:58,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:32:58,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:32:58,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:32:58,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:32:58,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:32:58,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:32:58,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:32:58,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:32:58,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:32:58,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:32:58,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:32:58,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:32:58,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:32:58,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:32:58,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:32:58,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:32:58,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:32:58,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:32:58,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:32:58,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:32:58,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:32:58,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:32:58,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:32:58,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:32:58,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:32:58,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:32:58,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:32:58,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:32:58,547 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:32:58,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:32:58,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:32:58,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:32:58,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:32:58,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:32:58,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:32:58,551 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:32:58,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:32:58,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:32:58,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:32:58,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:32:58,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:32:58,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:32:58,553 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:32:58,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:32:58,554 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:32:58,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:32:58,554 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:32:58,554 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:32:58,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:32:58,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:32:58,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:58,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:32:58,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:32:58,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:32:58,556 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:32:58,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:32:58,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:32:58,558 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-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21b475462fcf81a6a340c34270a285fecf0d0ad8 [2020-11-28 04:32:58,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:32:58,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:32:58,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:32:58,813 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:32:58,816 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:32:58,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/../../sv-benchmarks/c/array-fpi/ifeqn2f.c [2020-11-28 04:32:58,889 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/data/03d3ecc39/70eee20a65154a37baf52dcf3cb9fc50/FLAG2b916c696 [2020-11-28 04:32:59,337 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:32:59,338 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/sv-benchmarks/c/array-fpi/ifeqn2f.c [2020-11-28 04:32:59,344 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/data/03d3ecc39/70eee20a65154a37baf52dcf3cb9fc50/FLAG2b916c696 [2020-11-28 04:32:59,738 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/data/03d3ecc39/70eee20a65154a37baf52dcf3cb9fc50 [2020-11-28 04:32:59,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:32:59,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:32:59,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:59,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:32:59,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:32:59,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:59" (1/1) ... [2020-11-28 04:32:59,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ddc025c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:59, skipping insertion in model container [2020-11-28 04:32:59,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:59" (1/1) ... [2020-11-28 04:32:59,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:32:59,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:32:59,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:00,000 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:33:00,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:00,041 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:33:00,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00 WrapperNode [2020-11-28 04:33:00,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:00,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:00,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:33:00,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:33:00,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00" (1/1) ... [2020-11-28 04:33:00,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00" (1/1) ... [2020-11-28 04:33:00,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:00,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:33:00,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:33:00,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:33:00,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00" (1/1) ... [2020-11-28 04:33:00,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00" (1/1) ... [2020-11-28 04:33:00,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00" (1/1) ... [2020-11-28 04:33:00,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00" (1/1) ... [2020-11-28 04:33:00,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00" (1/1) ... [2020-11-28 04:33:00,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00" (1/1) ... [2020-11-28 04:33:00,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00" (1/1) ... [2020-11-28 04:33:00,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:33:00,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:33:00,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:33:00,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:33:00,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:33:00,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:33:00,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:33:00,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:33:00,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:33:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:33:00,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:33:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:33:00,711 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:33:00,712 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-28 04:33:00,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:00 BoogieIcfgContainer [2020-11-28 04:33:00,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:33:00,714 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:33:00,714 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:33:00,725 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:33:00,726 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:00" (1/1) ... [2020-11-28 04:33:00,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:33:00,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:00,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-11-28 04:33:00,771 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-11-28 04:33:00,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:33:00,773 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:00,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:33:00,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:01,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:01,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-11-28 04:33:01,042 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-11-28 04:33:01,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:33:01,042 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:01,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 04:33:01,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 04:33:01,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:33:01,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:01,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2020-11-28 04:33:01,184 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2020-11-28 04:33:01,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:33:01,184 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:01,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:33:01,289 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:33:01,320 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2020-11-28 04:33:01,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:33:01 ImpRootNode [2020-11-28 04:33:01,348 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:33:01,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:33:01,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:33:01,349 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:33:01,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:00" (3/4) ... [2020-11-28 04:33:01,351 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:33:01,395 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e0f9030b-2d24-4a05-9cfa-c19155480b8b/bin/ukojak/witness.graphml [2020-11-28 04:33:01,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:33:01,397 INFO L168 Benchmark]: Toolchain (without parser) took 1654.20 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 71.2 MB in the beginning and 59.4 MB in the end (delta: 11.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:01,398 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 98.6 MB. Free memory is still 57.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:01,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.12 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 70.9 MB in the beginning and 95.7 MB in the end (delta: -24.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:01,399 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.08 ms. Allocated memory is still 119.5 MB. Free memory was 95.7 MB in the beginning and 94.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:01,400 INFO L168 Benchmark]: Boogie Preprocessor took 24.68 ms. Allocated memory is still 119.5 MB. Free memory was 94.5 MB in the beginning and 92.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:01,401 INFO L168 Benchmark]: RCFGBuilder took 602.83 ms. Allocated memory is still 119.5 MB. Free memory was 92.9 MB in the beginning and 67.3 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:01,401 INFO L168 Benchmark]: CodeCheck took 634.05 ms. Allocated memory is still 119.5 MB. Free memory was 67.3 MB in the beginning and 61.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:01,402 INFO L168 Benchmark]: Witness Printer took 46.53 ms. Allocated memory is still 119.5 MB. Free memory was 61.5 MB in the beginning and 59.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:01,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 32 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 2 NumberOfNonLiveVariables, 162 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 VAL [N=1] [L31] COND TRUE i