./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ssinaf.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_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ssinaf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/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 4618b75d413d783d7edda184b58fd1988f40d7dc ................................................................................................................................................................................................................................................................................................................. 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 18:27:36,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:27:36,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:27:36,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:27:36,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:27:36,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:27:36,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:27:36,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:27:36,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:27:36,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:27:36,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:27:36,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:27:36,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:27:36,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:27:36,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:27:36,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:27:36,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:27:36,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:27:36,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:27:36,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:27:36,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:27:36,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:27:36,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:27:36,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:27:36,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:27:36,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:27:36,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:27:36,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:27:36,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:27:36,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:27:36,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:27:36,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:27:36,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:27:36,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:27:36,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:27:36,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:27:36,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:27:36,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:27:36,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:27:36,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:27:36,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:27:36,220 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:27:36,245 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:27:36,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:27:36,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:27:36,247 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:27:36,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:27:36,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:27:36,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:27:36,249 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:27:36,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:27:36,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:27:36,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:27:36,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:27:36,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:27:36,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:27:36,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:27:36,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:27:36,252 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:27:36,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:27:36,253 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:27:36,254 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:27:36,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:27:36,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:27:36,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:27:36,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:27:36,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:27:36,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:27:36,256 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:27:36,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:27:36,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:27:36,258 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_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4618b75d413d783d7edda184b58fd1988f40d7dc [2020-12-01 18:27:36,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:27:36,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:27:36,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:27:36,513 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:27:36,516 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:27:36,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/../../sv-benchmarks/c/array-fpi/ssinaf.c [2020-12-01 18:27:36,607 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/data/8a040911f/0134660661e1444d82a10a07e7953701/FLAGb40ca0bf2 [2020-12-01 18:27:37,036 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:27:37,037 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/sv-benchmarks/c/array-fpi/ssinaf.c [2020-12-01 18:27:37,044 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/data/8a040911f/0134660661e1444d82a10a07e7953701/FLAGb40ca0bf2 [2020-12-01 18:27:37,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/data/8a040911f/0134660661e1444d82a10a07e7953701 [2020-12-01 18:27:37,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:27:37,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:27:37,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:27:37,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:27:37,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:27:37,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40bd9cb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37, skipping insertion in model container [2020-12-01 18:27:37,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:27:37,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:27:37,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:27:37,289 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:27:37,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:27:37,327 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:27:37,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37 WrapperNode [2020-12-01 18:27:37,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:27:37,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:27:37,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:27:37,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:27:37,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:27:37,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:27:37,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:27:37,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:27:37,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37" (1/1) ... [2020-12-01 18:27:37,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:27:37,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:27:37,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:27:37,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:27:37,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/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 18:27:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:27:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:27:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:27:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 18:27:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:27:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:27:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:27:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:27:38,004 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:27:38,005 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-01 18:27:38,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:27:38 BoogieIcfgContainer [2020-12-01 18:27:38,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:27:38,008 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:27:38,008 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:27:38,034 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:27:38,045 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:27:38" (1/1) ... [2020-12-01 18:27:38,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:27:38,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:27:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 14 states and 21 transitions. [2020-12-01 18:27:38,099 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 21 transitions. [2020-12-01 18:27:38,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:27:38,102 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:27:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:27:38,307 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 18:27:38,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:27:38,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-12-01 18:27:38,342 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-12-01 18:27:38,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:27:38,343 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:27:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:27:38,400 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 18:27:38,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:27:38,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-12-01 18:27:38,472 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-12-01 18:27:38,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:27:38,472 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:27:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:27:38,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 18:27:38,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:27:38,675 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 18:27:38,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:27:38,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2020-12-01 18:27:38,761 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2020-12-01 18:27:38,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:27:38,762 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:27:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:27:38,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 18:27:38,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:27:38,933 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 18:27:39,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:27:39,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-12-01 18:27:39,018 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-12-01 18:27:39,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:27:39,018 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:27:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:27:39,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 18:27:39,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 18:27:39,106 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 18:27:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:27:39,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2020-12-01 18:27:39,145 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2020-12-01 18:27:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:27:39,145 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:27:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:27:39,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:27:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:27:39,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:27:39,459 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2020-12-01 18:27:39,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:27:39 ImpRootNode [2020-12-01 18:27:39,496 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:27:39,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:27:39,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:27:39,497 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:27:39,498 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:27:38" (3/4) ... [2020-12-01 18:27:39,500 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:27:39,588 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ddbd6cc0-db0f-4ed5-95aa-ec8d1b8abbd8/bin/ukojak/witness.graphml [2020-12-01 18:27:39,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:27:39,590 INFO L168 Benchmark]: Toolchain (without parser) took 2525.15 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 61.6 MB in the beginning and 84.5 MB in the end (delta: -22.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:27:39,590 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 73.4 MB. Free memory was 33.6 MB in the beginning and 33.6 MB in the end (delta: 43.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:27:39,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.49 ms. Allocated memory is still 94.4 MB. Free memory was 61.5 MB in the beginning and 70.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:39,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.21 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 69.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:39,592 INFO L168 Benchmark]: Boogie Preprocessor took 28.80 ms. Allocated memory is still 94.4 MB. Free memory was 68.5 MB in the beginning and 67.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:39,592 INFO L168 Benchmark]: RCFGBuilder took 578.69 ms. Allocated memory is still 94.4 MB. Free memory was 67.3 MB in the beginning and 38.4 MB in the end (delta: 29.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:39,599 INFO L168 Benchmark]: CodeCheck took 1488.45 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 38.4 MB in the beginning and 87.5 MB in the end (delta: -49.1 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:39,607 INFO L168 Benchmark]: Witness Printer took 91.29 ms. Allocated memory is still 113.2 MB. Free memory was 87.5 MB in the beginning and 84.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:27:39,609 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: 1.3s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 272 SDtfs, 98 SDslu, 0 SDs, 0 SdLazy, 448 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 534 GetRequests, 505 SyntacticMatches, 19 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 1425 SizeOfPredicates, 3 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 10/10 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] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i