./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifncompf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifncompf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/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 19b2937af05cedee0ee8c037c66accd504b6c96d ............................................................................................................................................................................................................................................................................ 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 0.2.0-69874e2 [2020-12-01 17:16:26,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:16:26,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:16:26,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:16:26,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:16:26,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:16:26,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:16:26,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:16:26,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:16:26,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:16:26,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:16:26,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:16:26,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:16:26,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:16:26,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:16:26,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:16:26,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:16:26,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:16:26,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:16:26,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:16:26,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:16:26,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:16:26,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:16:26,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:16:26,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:16:26,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:16:26,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:16:26,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:16:26,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:16:26,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:16:26,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:16:26,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:16:26,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:16:26,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:16:26,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:16:26,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:16:26,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:16:26,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:16:26,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:16:26,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:16:26,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:16:26,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:16:26,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:16:26,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:16:26,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:16:26,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:16:26,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:16:26,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:16:26,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:16:26,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:16:26,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:16:26,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:16:26,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:16:26,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:16:26,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:16:26,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:16:26,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:16:26,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:16:26,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:16:26,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:16:26,253 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:16:26,254 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:16:26,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:16:26,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:16:26,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:16:26,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:16:26,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:16:26,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:16:26,255 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:16:26,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:16:26,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:16:26,257 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_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19b2937af05cedee0ee8c037c66accd504b6c96d [2020-12-01 17:16:26,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:16:26,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:16:26,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:16:26,587 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:16:26,588 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:16:26,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/../../sv-benchmarks/c/array-fpi/ifncompf.c [2020-12-01 17:16:26,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/data/e5abb608a/12f0e02fcb1343b18d7e616d7c48223c/FLAGc9b4dad02 [2020-12-01 17:16:27,139 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:16:27,140 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/sv-benchmarks/c/array-fpi/ifncompf.c [2020-12-01 17:16:27,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/data/e5abb608a/12f0e02fcb1343b18d7e616d7c48223c/FLAGc9b4dad02 [2020-12-01 17:16:27,496 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/data/e5abb608a/12f0e02fcb1343b18d7e616d7c48223c [2020-12-01 17:16:27,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:16:27,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:16:27,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:16:27,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:16:27,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:16:27,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d17588d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27, skipping insertion in model container [2020-12-01 17:16:27,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:16:27,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:16:27,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:16:27,786 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:16:27,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:16:27,861 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:16:27,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27 WrapperNode [2020-12-01 17:16:27,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:16:27,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:16:27,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:16:27,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:16:27,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:16:27,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:16:27,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:16:27,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:16:27,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27" (1/1) ... [2020-12-01 17:16:27,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:16:27,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:16:27,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:16:27,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:16:27,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:16:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/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 [2020-12-01 17:16:28,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:16:28,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:16:28,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 17:16:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 17:16:28,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:16:28,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:16:28,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 17:16:28,754 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:16:28,754 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-01 17:16:28,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:16:28 BoogieIcfgContainer [2020-12-01 17:16:28,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:16:28,758 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:16:28,758 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:16:28,769 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:16:28,769 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:16:28" (1/1) ... [2020-12-01 17:16:28,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:16:28,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:16:28,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2020-12-01 17:16:28,814 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2020-12-01 17:16:28,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:16:28,816 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:16:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:16:28,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 17:16:28,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:16:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:16:29,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:16:29,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2020-12-01 17:16:29,084 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2020-12-01 17:16:29,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:16:29,085 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:16:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:16:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:16:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:16:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2020-12-01 17:16:29,291 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2020-12-01 17:16:29,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:16:29,291 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:16:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:16:29,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 17:16:29,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 17:16:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:16:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:16:29,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-12-01 17:16:29,565 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-12-01 17:16:29,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:16:29,565 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:16:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:16:29,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:16:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 17:16:29,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 17:16:29,872 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2020-12-01 17:16:29,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:16:29 ImpRootNode [2020-12-01 17:16:29,914 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:16:29,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:16:29,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:16:29,915 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:16:29,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:16:28" (3/4) ... [2020-12-01 17:16:29,917 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 17:16:29,969 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2b96d957-ac5d-4c98-90f4-3f9369cfe25d/bin/ukojak/witness.graphml [2020-12-01 17:16:29,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:16:29,972 INFO L168 Benchmark]: Toolchain (without parser) took 2470.85 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 64.2 MB in the beginning and 82.0 MB in the end (delta: -17.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2020-12-01 17:16:29,972 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 52.2 MB in the beginning and 52.1 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:16:29,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.29 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 63.9 MB in the beginning and 111.0 MB in the end (delta: -47.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:16:29,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.21 ms. Allocated memory is still 134.2 MB. Free memory was 111.0 MB in the beginning and 109.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:16:29,975 INFO L168 Benchmark]: Boogie Preprocessor took 53.57 ms. Allocated memory is still 134.2 MB. Free memory was 109.3 MB in the beginning and 107.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:16:29,975 INFO L168 Benchmark]: RCFGBuilder took 777.02 ms. Allocated memory is still 134.2 MB. Free memory was 107.8 MB in the beginning and 75.8 MB in the end (delta: 32.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:16:29,976 INFO L168 Benchmark]: CodeCheck took 1156.36 ms. Allocated memory is still 134.2 MB. Free memory was 75.8 MB in the beginning and 85.3 MB in the end (delta: -9.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:16:29,977 INFO L168 Benchmark]: Witness Printer took 55.21 ms. Allocated memory is still 134.2 MB. Free memory was 85.3 MB in the beginning and 82.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:16:29,980 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, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 16 SDslu, 0 SDs, 0 SdLazy, 90 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 210 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 2 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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); [L30] long long *c = malloc(sizeof(long long)*N); [L32] i=0 VAL [N=1] [L32] COND TRUE i