./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/indp4f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/indp4f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa7a6c534add2031cc7a2cd1c6ce2a09a390c50f ................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-01 03:35:03,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 03:35:03,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 03:35:03,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 03:35:03,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 03:35:03,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 03:35:03,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 03:35:03,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 03:35:03,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 03:35:03,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 03:35:03,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 03:35:03,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 03:35:03,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 03:35:03,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 03:35:03,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 03:35:03,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 03:35:03,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 03:35:03,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 03:35:03,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 03:35:03,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 03:35:03,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 03:35:03,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 03:35:03,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 03:35:03,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 03:35:03,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 03:35:03,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 03:35:03,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 03:35:03,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 03:35:03,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 03:35:03,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 03:35:03,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 03:35:03,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 03:35:03,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 03:35:03,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 03:35:03,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 03:35:03,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 03:35:03,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 03:35:03,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 03:35:03,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 03:35:03,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 03:35:03,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 03:35:03,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-01 03:35:03,306 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 03:35:03,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 03:35:03,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 03:35:03,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 03:35:03,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 03:35:03,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 03:35:03,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 03:35:03,308 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 03:35:03,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 03:35:03,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 03:35:03,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 03:35:03,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 03:35:03,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 03:35:03,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 03:35:03,308 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 03:35:03,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 03:35:03,308 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 03:35:03,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 03:35:03,309 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 03:35:03,309 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 03:35:03,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 03:35:03,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 03:35:03,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 03:35:03,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 03:35:03,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 03:35:03,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 03:35:03,310 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 03:35:03,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 03:35:03,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 03:35:03,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/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(__VERIFIER_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 -> fa7a6c534add2031cc7a2cd1c6ce2a09a390c50f [2019-12-01 03:35:03,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 03:35:03,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 03:35:03,424 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 03:35:03,425 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 03:35:03,425 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 03:35:03,426 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/../../sv-benchmarks/c/array-fpi/indp4f.c [2019-12-01 03:35:03,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/data/3a7cab235/4843275504d24102a5f09bcec80522ab/FLAG261201426 [2019-12-01 03:35:03,839 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 03:35:03,840 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/sv-benchmarks/c/array-fpi/indp4f.c [2019-12-01 03:35:03,844 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/data/3a7cab235/4843275504d24102a5f09bcec80522ab/FLAG261201426 [2019-12-01 03:35:04,263 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/data/3a7cab235/4843275504d24102a5f09bcec80522ab [2019-12-01 03:35:04,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 03:35:04,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 03:35:04,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 03:35:04,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 03:35:04,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 03:35:04,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b8aa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04, skipping insertion in model container [2019-12-01 03:35:04,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 03:35:04,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 03:35:04,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 03:35:04,398 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 03:35:04,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 03:35:04,451 INFO L208 MainTranslator]: Completed translation [2019-12-01 03:35:04,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04 WrapperNode [2019-12-01 03:35:04,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 03:35:04,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 03:35:04,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 03:35:04,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 03:35:04,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 03:35:04,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 03:35:04,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 03:35:04,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 03:35:04,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 03:35:04,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 03:35:04,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 03:35:04,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 03:35:04,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:35:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/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 [2019-12-01 03:35:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 03:35:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 03:35:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 03:35:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 03:35:04,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 03:35:04,731 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 03:35:04,731 INFO L287 CfgBuilder]: Removed 10 assume(true) statements. [2019-12-01 03:35:04,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:35:04 BoogieIcfgContainer [2019-12-01 03:35:04,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 03:35:04,733 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 03:35:04,733 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 03:35:04,739 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 03:35:04,740 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:35:04" (1/1) ... [2019-12-01 03:35:04,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 03:35:04,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:35:04,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2019-12-01 03:35:04,768 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2019-12-01 03:35:04,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-01 03:35:04,770 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:35:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:35:04,854 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-01 03:35:04,858 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-01 03:35:04,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 03:35:04,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:35:04,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2019-12-01 03:35:04,920 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2019-12-01 03:35:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 03:35:04,920 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:35:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:35:04,942 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-01 03:35:04,943 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-01 03:35:04,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-01 03:35:04,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:35:04,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2019-12-01 03:35:04,999 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2019-12-01 03:35:05,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 03:35:05,000 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:35:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 03:35:05,021 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-01 03:35:05,022 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-01 03:35:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 03:35:05,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 03:35:05,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2019-12-01 03:35:05,047 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2019-12-01 03:35:05,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 03:35:05,048 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 03:35:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 03:35:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 03:35:05,088 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2019-12-01 03:35:05,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 03:35:05 ImpRootNode [2019-12-01 03:35:05,110 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 03:35:05,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 03:35:05,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 03:35:05,110 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 03:35:05,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:35:04" (3/4) ... [2019-12-01 03:35:05,112 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 03:35:05,144 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c5388bda-fe5c-4af9-85ea-cc622d8b1d4a/bin/ukojak/witness.graphml [2019-12-01 03:35:05,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 03:35:05,145 INFO L168 Benchmark]: Toolchain (without parser) took 878.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -92.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-12-01 03:35:05,146 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 03:35:05,146 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-01 03:35:05,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 03:35:05,147 INFO L168 Benchmark]: Boogie Preprocessor took 16.19 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 03:35:05,147 INFO L168 Benchmark]: RCFGBuilder took 240.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-12-01 03:35:05,147 INFO L168 Benchmark]: CodeCheck took 377.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-12-01 03:35:05,148 INFO L168 Benchmark]: Witness Printer took 33.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-01 03:35:05,150 INFO L335 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. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 14 SDslu, 0 SDs, 0 SdLazy, 88 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 220 SyntacticMatches, 4 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, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 3 NumberOfNonLiveVariables, 147 ConjunctsInSsa, 9 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: [L14] int N; [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long *a = malloc(sizeof(long long)*N); [L25] i=0 VAL [N=1] [L25] COND TRUE i