./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s2iff.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_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/s2iff.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/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 a22ecd7dbca86ce676366b458aa720e60c3fd1ca .......................................................................................................................................................................................................................................................................................................................... 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 [2020-11-29 19:56:12,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:56:12,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:56:12,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:56:12,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:56:12,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:56:12,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:56:12,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:56:12,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:56:12,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:56:12,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:56:12,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:56:12,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:56:12,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:56:12,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:56:12,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:56:12,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:56:12,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:56:12,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:56:12,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:56:12,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:56:12,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:56:12,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:56:12,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:56:12,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:56:12,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:56:12,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:56:12,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:56:12,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:56:12,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:56:12,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:56:12,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:56:12,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:56:12,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:56:12,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:56:12,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:56:12,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:56:12,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:56:12,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:56:12,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:56:12,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:56:12,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 19:56:12,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:56:12,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:56:12,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 19:56:12,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 19:56:12,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:56:12,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:56:12,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:56:12,317 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:56:12,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:56:12,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:56:12,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:56:12,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:56:12,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:56:12,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:56:12,322 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:56:12,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:56:12,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:56:12,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:56:12,324 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:56:12,324 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:56:12,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:56:12,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:56:12,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:56:12,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:56:12,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:56:12,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:56:12,326 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:56:12,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:56:12,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:56:12,329 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_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a22ecd7dbca86ce676366b458aa720e60c3fd1ca [2020-11-29 19:56:12,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:56:12,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:56:12,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:56:12,706 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:56:12,716 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:56:12,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/../../sv-benchmarks/c/array-fpi/s2iff.c [2020-11-29 19:56:12,806 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/data/97458c010/05dd7b83b18e4ec6b9057fefce7f6ca2/FLAGc80f48035 [2020-11-29 19:56:13,402 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:56:13,403 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/sv-benchmarks/c/array-fpi/s2iff.c [2020-11-29 19:56:13,409 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/data/97458c010/05dd7b83b18e4ec6b9057fefce7f6ca2/FLAGc80f48035 [2020-11-29 19:56:13,740 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/data/97458c010/05dd7b83b18e4ec6b9057fefce7f6ca2 [2020-11-29 19:56:13,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:56:13,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:56:13,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:56:13,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:56:13,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:56:13,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:56:13" (1/1) ... [2020-11-29 19:56:13,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77cb906b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:13, skipping insertion in model container [2020-11-29 19:56:13,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:56:13" (1/1) ... [2020-11-29 19:56:13,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:56:13,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:56:14,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:56:14,075 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:56:14,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:56:14,146 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:56:14,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14 WrapperNode [2020-11-29 19:56:14,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:56:14,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:56:14,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:56:14,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:56:14,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14" (1/1) ... [2020-11-29 19:56:14,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14" (1/1) ... [2020-11-29 19:56:14,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:56:14,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:56:14,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:56:14,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:56:14,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14" (1/1) ... [2020-11-29 19:56:14,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14" (1/1) ... [2020-11-29 19:56:14,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14" (1/1) ... [2020-11-29 19:56:14,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14" (1/1) ... [2020-11-29 19:56:14,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14" (1/1) ... [2020-11-29 19:56:14,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14" (1/1) ... [2020-11-29 19:56:14,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14" (1/1) ... [2020-11-29 19:56:14,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:56:14,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:56:14,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:56:14,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:56:14,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:56:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/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 [2020-11-29 19:56:14,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:56:14,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:56:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:56:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 19:56:14,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:56:14,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:56:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:56:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:56:15,102 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:56:15,102 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-29 19:56:15,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:56:15 BoogieIcfgContainer [2020-11-29 19:56:15,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:56:15,106 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:56:15,107 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:56:15,122 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:56:15,122 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:56:15" (1/1) ... [2020-11-29 19:56:15,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:56:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:56:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-11-29 19:56:15,206 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-11-29 19:56:15,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:56:15,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:56:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:56:15,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:56:15,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:56:15,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2020-11-29 19:56:15,504 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-11-29 19:56:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:56:15,504 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:56:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:56:15,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 19:56:15,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:56:15,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-11-29 19:56:15,789 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-11-29 19:56:15,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:56:15,790 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:56:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:56:15,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-29 19:56:15,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:56:16,039 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-29 19:56:16,040 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:56:16,061 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:56:16,062 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:56:16,062 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2020-11-29 19:56:16,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 19:56:16,129 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2020-11-29 19:56:16,130 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:56:16,152 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:56:16,152 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:56:16,153 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:26 [2020-11-29 19:56:16,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:56:16,313 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:56:16,322 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:56:16,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-29 19:56:16,346 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2020-11-29 19:56:16,348 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:56:16,373 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:56:16,377 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-11-29 19:56:16,377 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:47, output treesize:26 [2020-11-29 19:56:16,497 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:56:16,501 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:56:16,512 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:56:16,556 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 19:56:16,676 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2020-11-29 19:56:16,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:56:17,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:56:17,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 17 states and 33 transitions. [2020-11-29 19:56:17,829 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 33 transitions. [2020-11-29 19:56:17,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:56:17,833 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:56:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:56:17,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:56:17,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:56:18,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:56:20,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:56:20,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 20 states and 40 transitions. [2020-11-29 19:56:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 40 transitions. [2020-11-29 19:56:20,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 19:56:20,050 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:56:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:56:20,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 19:56:20,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:56:20,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:56:20,729 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2020-11-29 19:56:20,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:56:20,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 21 states and 40 transitions. [2020-11-29 19:56:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 40 transitions. [2020-11-29 19:56:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:56:20,937 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:56:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:56:21,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:56:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:56:21,068 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:56:21,130 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2020-11-29 19:56:21,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:56:21 ImpRootNode [2020-11-29 19:56:21,171 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:56:21,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:56:21,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:56:21,173 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:56:21,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:56:15" (3/4) ... [2020-11-29 19:56:21,176 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:56:21,268 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1c93b350-4e1f-48a7-a0ae-6c8b7f4306d2/bin/ukojak/witness.graphml [2020-11-29 19:56:21,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:56:21,270 INFO L168 Benchmark]: Toolchain (without parser) took 7524.92 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 59.1 MB in the beginning and 61.3 MB in the end (delta: -2.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:21,271 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 94.4 MB. Free memory was 67.6 MB in the beginning and 67.6 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:56:21,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 393.13 ms. Allocated memory is still 94.4 MB. Free memory was 58.9 MB in the beginning and 70.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:21,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.09 ms. Allocated memory is still 94.4 MB. Free memory was 70.4 MB in the beginning and 68.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:21,275 INFO L168 Benchmark]: Boogie Preprocessor took 35.25 ms. Allocated memory is still 94.4 MB. Free memory was 68.7 MB in the beginning and 67.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:21,276 INFO L168 Benchmark]: RCFGBuilder took 871.56 ms. Allocated memory is still 94.4 MB. Free memory was 67.5 MB in the beginning and 43.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:21,277 INFO L168 Benchmark]: CodeCheck took 6064.93 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 43.6 MB in the beginning and 63.4 MB in the end (delta: -19.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:21,278 INFO L168 Benchmark]: Witness Printer took 96.67 ms. Allocated memory is still 117.4 MB. Free memory was 63.4 MB in the beginning and 61.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:56:21,286 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, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.9s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 128 SDtfs, 60 SDslu, 0 SDs, 0 SdLazy, 766 SolverSat, 326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 390 GetRequests, 320 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1833 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 34 ConstructedInterpolants, 1 QuantifiedInterpolants, 1300 SizeOfPredicates, 18 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 5/11 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); [L31] sum[0] = 1 [L32] i=0 VAL [N=2] [L32] COND TRUE i