./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/nec20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/nec20.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/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 9a2cd7cd32168bcfd44c5ed14b95671353415deb ........................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 07:00:19,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:00:19,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:00:19,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:00:19,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:00:19,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:00:19,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:00:19,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:00:19,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:00:19,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:00:19,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:00:19,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:00:19,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:00:19,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:00:19,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:00:19,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:00:19,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:00:19,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:00:19,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:00:19,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:00:19,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:00:19,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:00:19,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:00:19,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:00:19,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:00:19,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:00:19,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:00:19,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:00:19,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:00:19,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:00:19,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:00:19,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:00:19,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:00:19,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:00:19,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:00:19,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:00:19,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:00:19,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:00:19,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:00:19,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:00:19,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:00:19,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 07:00:19,230 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:00:19,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:00:19,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 07:00:19,241 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 07:00:19,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:00:19,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:00:19,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:00:19,242 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 07:00:19,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:00:19,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 07:00:19,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:00:19,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:00:19,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:00:19,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:00:19,243 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 07:00:19,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:00:19,245 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:00:19,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:00:19,245 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 07:00:19,245 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 07:00:19,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:00:19,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:00:19,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 07:00:19,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:00:19,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:00:19,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:00:19,247 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 07:00:19,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:00:19,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:00:19,248 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_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/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 -> 9a2cd7cd32168bcfd44c5ed14b95671353415deb [2019-11-20 07:00:19,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:00:19,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:00:19,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:00:19,429 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:00:19,429 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:00:19,430 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/../../sv-benchmarks/c/loops/nec20.c [2019-11-20 07:00:19,491 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/data/8196ae026/51caa4da266944fcb3e812206b72ecb5/FLAGfe4f80589 [2019-11-20 07:00:19,885 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:00:19,886 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/sv-benchmarks/c/loops/nec20.c [2019-11-20 07:00:19,891 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/data/8196ae026/51caa4da266944fcb3e812206b72ecb5/FLAGfe4f80589 [2019-11-20 07:00:19,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/data/8196ae026/51caa4da266944fcb3e812206b72ecb5 [2019-11-20 07:00:19,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:00:19,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:00:19,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:00:19,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:00:19,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:00:19,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:00:19" (1/1) ... [2019-11-20 07:00:19,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c38c408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:19, skipping insertion in model container [2019-11-20 07:00:19,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:00:19" (1/1) ... [2019-11-20 07:00:19,920 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:00:19,935 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:00:20,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:00:20,088 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:00:20,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:00:20,183 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:00:20,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20 WrapperNode [2019-11-20 07:00:20,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:00:20,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:00:20,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:00:20,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:00:20,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20" (1/1) ... [2019-11-20 07:00:20,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20" (1/1) ... [2019-11-20 07:00:20,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:00:20,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:00:20,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:00:20,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:00:20,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20" (1/1) ... [2019-11-20 07:00:20,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20" (1/1) ... [2019-11-20 07:00:20,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20" (1/1) ... [2019-11-20 07:00:20,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20" (1/1) ... [2019-11-20 07:00:20,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20" (1/1) ... [2019-11-20 07:00:20,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20" (1/1) ... [2019-11-20 07:00:20,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20" (1/1) ... [2019-11-20 07:00:20,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:00:20,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:00:20,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:00:20,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:00:20,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:00:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/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 [2019-11-20 07:00:20,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:00:20,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:00:20,772 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:00:20,772 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 07:00:20,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:20 BoogieIcfgContainer [2019-11-20 07:00:20,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:00:20,774 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 07:00:20,774 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 07:00:20,791 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 07:00:20,791 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:20" (1/1) ... [2019-11-20 07:00:20,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:00:20,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 07:00:20,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2019-11-20 07:00:20,829 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2019-11-20 07:00:20,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 07:00:20,832 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 07:00:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:00:21,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:00:21,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 07:00:21,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2019-11-20 07:00:21,063 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2019-11-20 07:00:21,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 07:00:21,064 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 07:00:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:00:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:00:21,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:00:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 07:00:21,197 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2019-11-20 07:00:21,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 07:00:21 ImpRootNode [2019-11-20 07:00:21,224 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 07:00:21,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:00:21,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:00:21,225 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:00:21,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:00:20" (3/4) ... [2019-11-20 07:00:21,228 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 07:00:21,283 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f0203881-e272-4cb0-ab50-bc8ab4cf29cb/bin/ukojak/witness.graphml [2019-11-20 07:00:21,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:00:21,285 INFO L168 Benchmark]: Toolchain (without parser) took 1377.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -129.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:21,285 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:00:21,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:21,286 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:00:21,286 INFO L168 Benchmark]: Boogie Preprocessor took 35.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:00:21,287 INFO L168 Benchmark]: RCFGBuilder took 516.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:21,287 INFO L168 Benchmark]: CodeCheck took 450.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:21,288 INFO L168 Benchmark]: Witness Printer took 58.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 07:00:21,291 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, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 2 SDslu, 2 SDs, 0 SdLazy, 5 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int b; [L13] _Bool k=__VERIFIER_nondet_bool(); [L14] unsigned int i,n,j; [L15] int a[1025]; [L17] COND TRUE \read(k) [L18] n=0 [L23] i=0 [L24] j=__VERIFIER_nondet_uint() [L25] COND FALSE !(j > 10000) VAL [b=0] [L28] COND TRUE i <= n [L29] i++ [L30] j= j +2 VAL [b=0] [L28] COND FALSE !(i <= n) [L33] a[i]=0 [L5] COND TRUE !(cond) VAL [b=0] [L6] __VERIFIER_error() VAL [b=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 516.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * CodeCheck took 450.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Witness Printer took 58.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...