./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/modsf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/modsf.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/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 85b220978bb74f9e1328fc34d0757a27ef5e1bc9 .......................................................................................................................................................................................................................................................................................... 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-a4ecdab [2020-11-28 04:38:51,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:38:51,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:38:51,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:38:51,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:38:51,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:38:51,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:38:51,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:38:51,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:38:51,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:38:51,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:38:51,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:38:51,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:38:51,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:38:51,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:38:51,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:38:51,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:38:51,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:38:51,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:38:51,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:38:51,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:38:51,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:38:51,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:38:51,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:38:51,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:38:51,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:38:51,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:38:51,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:38:51,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:38:51,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:38:51,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:38:51,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:38:51,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:38:51,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:38:51,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:38:51,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:38:51,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:38:51,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:38:51,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:38:51,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:38:51,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:38:51,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:38:51,358 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:38:51,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:38:51,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:38:51,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:38:51,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:38:51,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:38:51,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:38:51,360 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:38:51,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:38:51,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:38:51,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:38:51,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:38:51,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:38:51,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:38:51,361 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:38:51,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:38:51,366 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:38:51,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:38:51,366 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:38:51,366 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:38:51,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:38:51,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:38:51,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:51,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:38:51,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:38:51,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:38:51,368 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:38:51,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:38:51,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:38:51,370 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_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b220978bb74f9e1328fc34d0757a27ef5e1bc9 [2020-11-28 04:38:51,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:38:51,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:38:51,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:38:51,749 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:38:51,750 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:38:51,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/../../sv-benchmarks/c/array-fpi/modsf.c [2020-11-28 04:38:51,848 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/data/78a03ec13/52d377c8ce1b4822a12d6b21f2102974/FLAGf9ef6c5d1 [2020-11-28 04:38:52,485 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:38:52,485 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/sv-benchmarks/c/array-fpi/modsf.c [2020-11-28 04:38:52,500 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/data/78a03ec13/52d377c8ce1b4822a12d6b21f2102974/FLAGf9ef6c5d1 [2020-11-28 04:38:52,839 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/data/78a03ec13/52d377c8ce1b4822a12d6b21f2102974 [2020-11-28 04:38:52,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:38:52,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:38:52,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:52,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:38:52,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:38:52,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e498c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52, skipping insertion in model container [2020-11-28 04:38:52,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:38:52,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:38:53,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:53,148 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:38:53,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:53,187 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:38:53,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53 WrapperNode [2020-11-28 04:38:53,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:53,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:53,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:38:53,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:38:53,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53" (1/1) ... [2020-11-28 04:38:53,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53" (1/1) ... [2020-11-28 04:38:53,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:53,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:38:53,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:38:53,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:38:53,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53" (1/1) ... [2020-11-28 04:38:53,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53" (1/1) ... [2020-11-28 04:38:53,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53" (1/1) ... [2020-11-28 04:38:53,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53" (1/1) ... [2020-11-28 04:38:53,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53" (1/1) ... [2020-11-28 04:38:53,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53" (1/1) ... [2020-11-28 04:38:53,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53" (1/1) ... [2020-11-28 04:38:53,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:38:53,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:38:53,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:38:53,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:38:53,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/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 [2020-11-28 04:38:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:38:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:38:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:38:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:38:53,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:38:53,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:38:53,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:38:53,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:38:54,159 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:38:54,159 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-28 04:38:54,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:54 BoogieIcfgContainer [2020-11-28 04:38:54,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:38:54,162 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:38:54,162 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:38:54,174 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:38:54,174 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:54" (1/1) ... [2020-11-28 04:38:54,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:38:54,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:54,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2020-11-28 04:38:54,242 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2020-11-28 04:38:54,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:38:54,259 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:54,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:54,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 14 states and 20 transitions. [2020-11-28 04:38:54,487 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 20 transitions. [2020-11-28 04:38:54,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:38:54,487 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:38:54,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:54,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-11-28 04:38:54,700 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-11-28 04:38:54,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:38:54,700 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:54,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:38:54,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:54,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions. [2020-11-28 04:38:54,817 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions. [2020-11-28 04:38:54,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:38:54,818 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:38:54,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:54,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 17 states and 26 transitions. [2020-11-28 04:38:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 26 transitions. [2020-11-28 04:38:54,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:38:54,922 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:55,038 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:55,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:55,149 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2020-11-28 04:38:55,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:38:55 ImpRootNode [2020-11-28 04:38:55,187 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:38:55,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:38:55,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:38:55,188 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:38:55,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:54" (3/4) ... [2020-11-28 04:38:55,190 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:38:55,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a2d6c290-8187-479c-b4c1-394cbb5aa2fa/bin/ukojak/witness.graphml [2020-11-28 04:38:55,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:38:55,252 INFO L168 Benchmark]: Toolchain (without parser) took 2406.80 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.8 MB in the beginning and 74.4 MB in the end (delta: -19.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:55,253 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory is still 71.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:55,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.15 ms. Allocated memory is still 90.2 MB. Free memory was 54.6 MB in the beginning and 67.2 MB in the end (delta: -12.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.85 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 65.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,255 INFO L168 Benchmark]: Boogie Preprocessor took 34.66 ms. Allocated memory is still 90.2 MB. Free memory was 65.3 MB in the beginning and 64.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,256 INFO L168 Benchmark]: RCFGBuilder took 896.23 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 37.5 MB in the end (delta: 26.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,257 INFO L168 Benchmark]: CodeCheck took 1024.49 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 37.5 MB in the beginning and 76.8 MB in the end (delta: -39.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:55,258 INFO L168 Benchmark]: Witness Printer took 63.12 ms. Allocated memory is still 109.1 MB. Free memory was 76.8 MB in the beginning and 74.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,262 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, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 120 SDtfs, 48 SDslu, 0 SDs, 0 SdLazy, 214 SolverSat, 94 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 349 GetRequests, 334 SyntacticMatches, 9 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 842 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 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