./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res2of.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_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/res2of.c -s /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/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 ab5f5575b4f404d180fabd8e1f95043fb9254d7e ......................................................................................................................................................................................................................................................................................................................... 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 18:23:31,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:23:31,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:23:31,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:23:31,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:23:31,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:23:31,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:23:31,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:23:31,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:23:31,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:23:31,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:23:31,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:23:31,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:23:31,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:23:31,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:23:31,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:23:31,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:23:31,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:23:31,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:23:31,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:23:31,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:23:31,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:23:31,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:23:31,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:23:31,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:23:31,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:23:31,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:23:31,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:23:31,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:23:31,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:23:31,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:23:31,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:23:31,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:23:31,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:23:31,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:23:31,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:23:31,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:23:31,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:23:31,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:23:31,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:23:31,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:23:31,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:23:31,269 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:23:31,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:23:31,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:23:31,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:23:31,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:23:31,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:23:31,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:23:31,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:23:31,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:23:31,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:23:31,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:23:31,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:23:31,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:23:31,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:23:31,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:23:31,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:23:31,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:23:31,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:23:31,277 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:23:31,277 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:23:31,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:23:31,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:23:31,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:23:31,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:23:31,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:23:31,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:23:31,279 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:23:31,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:23:31,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:23:31,284 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_55eae297-b43e-4a84-850d-f0b009dfcc9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab5f5575b4f404d180fabd8e1f95043fb9254d7e [2020-12-01 18:23:31,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:23:31,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:23:31,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:23:31,633 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:23:31,634 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:23:31,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/../../sv-benchmarks/c/array-fpi/res2of.c [2020-12-01 18:23:31,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/data/079f38ae4/8a6d6bf1a9064654853739669c702828/FLAG5bd8ae76a [2020-12-01 18:23:32,358 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:23:32,359 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/sv-benchmarks/c/array-fpi/res2of.c [2020-12-01 18:23:32,368 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/data/079f38ae4/8a6d6bf1a9064654853739669c702828/FLAG5bd8ae76a [2020-12-01 18:23:32,737 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/data/079f38ae4/8a6d6bf1a9064654853739669c702828 [2020-12-01 18:23:32,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:23:32,743 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:23:32,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:23:32,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:23:32,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:23:32,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:23:32" (1/1) ... [2020-12-01 18:23:32,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa922da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:32, skipping insertion in model container [2020-12-01 18:23:32,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:23:32" (1/1) ... [2020-12-01 18:23:32,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:23:32,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:23:33,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:23:33,136 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:23:33,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:23:33,211 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:23:33,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33 WrapperNode [2020-12-01 18:23:33,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:23:33,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:23:33,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:23:33,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:23:33,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33" (1/1) ... [2020-12-01 18:23:33,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33" (1/1) ... [2020-12-01 18:23:33,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:23:33,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:23:33,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:23:33,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:23:33,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33" (1/1) ... [2020-12-01 18:23:33,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33" (1/1) ... [2020-12-01 18:23:33,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33" (1/1) ... [2020-12-01 18:23:33,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33" (1/1) ... [2020-12-01 18:23:33,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33" (1/1) ... [2020-12-01 18:23:33,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33" (1/1) ... [2020-12-01 18:23:33,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33" (1/1) ... [2020-12-01 18:23:33,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:23:33,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:23:33,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:23:33,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:23:33,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/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 18:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 18:23:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:23:33,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:23:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:23:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:23:34,159 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:23:34,169 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-01 18:23:34,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:23:34 BoogieIcfgContainer [2020-12-01 18:23:34,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:23:34,174 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:23:34,175 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:23:34,195 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:23:34,196 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:23:34" (1/1) ... [2020-12-01 18:23:34,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:23:34,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:34,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 14 states and 21 transitions. [2020-12-01 18:23:34,267 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 21 transitions. [2020-12-01 18:23:34,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:23:34,275 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:34,616 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 18:23:34,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:34,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-12-01 18:23:34,664 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-12-01 18:23:34,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:23:34,665 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:34,773 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 18:23:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:34,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-12-01 18:23:34,914 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-12-01 18:23:34,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:23:34,916 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:34,996 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 18:23:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2020-12-01 18:23:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2020-12-01 18:23:35,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:23:35,040 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:35,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 18:23:35,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-12-01 18:23:35,183 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-12-01 18:23:35,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:23:35,184 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:35,304 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 18:23:35,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:35,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2020-12-01 18:23:35,378 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2020-12-01 18:23:35,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:23:35,379 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 18:23:35,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:35,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 32 transitions. [2020-12-01 18:23:35,549 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2020-12-01 18:23:35,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 18:23:35,550 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:23:35,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:23:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:23:35,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:23:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:23:35,880 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:23:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:23:35,926 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:23:36,118 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2020-12-01 18:23:36,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:23:36 ImpRootNode [2020-12-01 18:23:36,177 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:23:36,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:23:36,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:23:36,178 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:23:36,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:23:34" (3/4) ... [2020-12-01 18:23:36,197 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:23:36,308 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_55eae297-b43e-4a84-850d-f0b009dfcc9b/bin/ukojak/witness.graphml [2020-12-01 18:23:36,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:23:36,315 INFO L168 Benchmark]: Toolchain (without parser) took 3570.38 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 57.8 MB in the beginning and 58.8 MB in the end (delta: -918.6 kB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:36,316 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 65.4 MB in the beginning and 65.4 MB in the end (delta: 29.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:23:36,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.47 ms. Allocated memory is still 90.2 MB. Free memory was 57.7 MB in the beginning and 67.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:36,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.80 ms. Allocated memory is still 90.2 MB. Free memory was 67.6 MB in the beginning and 65.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:36,318 INFO L168 Benchmark]: Boogie Preprocessor took 36.91 ms. Allocated memory is still 90.2 MB. Free memory was 65.9 MB in the beginning and 64.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:36,319 INFO L168 Benchmark]: RCFGBuilder took 847.09 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 64.6 MB in the beginning and 97.4 MB in the end (delta: -32.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:36,320 INFO L168 Benchmark]: CodeCheck took 2002.43 ms. Allocated memory is still 119.5 MB. Free memory was 97.0 MB in the beginning and 61.6 MB in the end (delta: 35.5 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:36,321 INFO L168 Benchmark]: Witness Printer took 135.26 ms. Allocated memory is still 119.5 MB. Free memory was 61.6 MB in the beginning and 58.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:36,325 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, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.8s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 512 SDtfs, 216 SDslu, 0 SDs, 0 SdLazy, 934 SolverSat, 406 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 646 GetRequests, 615 SyntacticMatches, 25 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 1985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 15/15 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 sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L31] int *c = malloc(sizeof(int)*N); [L33] sum[0] = 0 [L34] i=0 VAL [N=1] [L34] COND TRUE i