./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test27-2.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_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test27-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/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 2292364e3df3925555991c57490c078c89b959e0 ............................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-30 00:13:50,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:13:50,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:13:50,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:13:50,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:13:50,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:13:50,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:13:50,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:13:50,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:13:50,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:13:50,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:13:50,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:13:50,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:13:50,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:13:50,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:13:50,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:13:50,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:13:50,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:13:50,328 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:13:50,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:13:50,339 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:13:50,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:13:50,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:13:50,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:13:50,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:13:50,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:13:50,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:13:50,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:13:50,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:13:50,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:13:50,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:13:50,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:13:50,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:13:50,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:13:50,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:13:50,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:13:50,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:13:50,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:13:50,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:13:50,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:13:50,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:13:50,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-30 00:13:50,428 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:13:50,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:13:50,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:13:50,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:13:50,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:13:50,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:13:50,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:13:50,440 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:13:50,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:13:50,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:13:50,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:13:50,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:13:50,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:13:50,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:13:50,443 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:13:50,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:13:50,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:13:50,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:13:50,444 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:13:50,444 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:13:50,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:13:50,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:13:50,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:13:50,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:13:50,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:13:50,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:13:50,446 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:13:50,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:13:50,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:13:50,447 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_630a6e08-7e5f-4dda-8168-ee8e5b565c21/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2292364e3df3925555991c57490c078c89b959e0 [2020-11-30 00:13:50,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:13:50,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:13:50,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:13:50,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:13:50,895 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:13:50,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test27-2.c [2020-11-30 00:13:50,978 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/data/9dc7bef97/f6757b9082a740e485b1a23412d25af1/FLAG418ef32bf [2020-11-30 00:13:51,682 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:13:51,685 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/sv-benchmarks/c/ldv-regression/test27-2.c [2020-11-30 00:13:51,700 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/data/9dc7bef97/f6757b9082a740e485b1a23412d25af1/FLAG418ef32bf [2020-11-30 00:13:52,015 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/data/9dc7bef97/f6757b9082a740e485b1a23412d25af1 [2020-11-30 00:13:52,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:13:52,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:13:52,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:13:52,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:13:52,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:13:52,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a25e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52, skipping insertion in model container [2020-11-30 00:13:52,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:13:52,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:13:52,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:13:52,327 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:13:52,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:13:52,377 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:13:52,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52 WrapperNode [2020-11-30 00:13:52,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:13:52,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:13:52,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:13:52,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:13:52,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:13:52,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:13:52,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:13:52,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:13:52,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52" (1/1) ... [2020-11-30 00:13:52,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:13:52,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:13:52,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:13:52,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:13:52,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:13:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/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 [2020-11-30 00:13:52,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 00:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 00:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:13:52,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:13:52,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:13:52,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:13:53,373 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:13:53,373 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-30 00:13:53,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:13:53 BoogieIcfgContainer [2020-11-30 00:13:53,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:13:53,377 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:13:53,378 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:13:53,391 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:13:53,392 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:13:53" (1/1) ... [2020-11-30 00:13:53,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:13:53,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:53,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2020-11-30 00:13:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2020-11-30 00:13:53,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:13:53,459 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:53,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:53,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:53,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-30 00:13:53,739 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-30 00:13:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:13:53,740 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:53,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:53,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:53,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2020-11-30 00:13:53,954 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2020-11-30 00:13:53,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:13:53,955 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:54,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:54,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:54,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2020-11-30 00:13:54,432 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-11-30 00:13:54,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:13:54,433 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:54,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2020-11-30 00:13:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2020-11-30 00:13:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 00:13:54,634 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:54,754 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:54,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:54,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2020-11-30 00:13:54,873 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-11-30 00:13:54,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:13:54,874 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:55,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-11-30 00:13:55,055 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-11-30 00:13:55,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:13:55,055 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:55,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:55,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2020-11-30 00:13:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2020-11-30 00:13:55,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 00:13:55,271 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:55,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2020-11-30 00:13:55,549 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-11-30 00:13:55,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 00:13:55,550 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:55,710 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:55,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:55,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2020-11-30 00:13:55,838 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-11-30 00:13:55,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 00:13:55,839 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:13:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:13:56,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:13:56,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2020-11-30 00:13:56,124 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-30 00:13:56,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 00:13:56,125 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:13:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:56,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:56,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:13:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:13:59,831 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:14:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:14:09,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:14:09,737 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2020-11-30 00:14:09,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:14:09 ImpRootNode [2020-11-30 00:14:09,821 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:14:09,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:14:09,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:14:09,822 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:14:09,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:13:53" (3/4) ... [2020-11-30 00:14:09,825 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:14:09,991 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_630a6e08-7e5f-4dda-8168-ee8e5b565c21/bin/ukojak/witness.graphml [2020-11-30 00:14:09,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:14:10,007 INFO L168 Benchmark]: Toolchain (without parser) took 17970.94 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 82.0 MB in the beginning and 77.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:10,009 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 75.5 MB. Free memory was 34.2 MB in the beginning and 34.1 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:14:10,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.27 ms. Allocated memory is still 113.2 MB. Free memory was 81.7 MB in the beginning and 88.9 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:10,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.61 ms. Allocated memory is still 113.2 MB. Free memory was 88.9 MB in the beginning and 87.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:10,012 INFO L168 Benchmark]: Boogie Preprocessor took 81.25 ms. Allocated memory is still 113.2 MB. Free memory was 87.2 MB in the beginning and 85.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:10,013 INFO L168 Benchmark]: RCFGBuilder took 826.79 ms. Allocated memory is still 113.2 MB. Free memory was 85.6 MB in the beginning and 62.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:10,014 INFO L168 Benchmark]: CodeCheck took 16444.12 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 62.1 MB in the beginning and 81.6 MB in the end (delta: -19.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:10,015 INFO L168 Benchmark]: Witness Printer took 169.75 ms. Allocated memory is still 153.1 MB. Free memory was 81.6 MB in the beginning and 77.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:14:10,030 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: 16.3s, OverallIterations: 11, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5632 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 7670 SolverSat, 5626 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 949 GetRequests, 875 SyntacticMatches, 36 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 3168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 0/165 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: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L23] struct cont cont; [L24] struct dummy dummy; [L25] struct dummy *dummies[10]; [L26] int a[10]; [L27] int i, *pa; [L28] i = __VERIFIER_nondet_int() [L29] int j = 0; [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 [L29] j++ [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 [L29] j++ [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 [L29] j++ [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 [L29] j++ [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 [L29] j++ [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 [L29] j++ [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 [L29] j++ [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 [L29] j++ [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 [L29] j++ [L29] COND TRUE j < 10 [L30] a[j] = __VERIFIER_nondet_int() [L34] dummies[j] = 0 [L29] j++ [L29] COND FALSE !(j < 10) [L36] COND TRUE i >= 0 && i < 9 [L37] a[i] = i [L38] dummy.array = &a[i] [L39] dummies[i + 1] = &dummy [L40] cont.array = &dummies[0] [L41] EXPR cont.array [L41] EXPR cont.array[i] [L41] EXPR cont.array[i]->array [L41] pa = &cont.array[i]->array[i] [L42] EXPR a[i] [L42] COND TRUE a[i] > 0 [L43] EXPR dummies[i + 1] [L43] EXPR dummies[i + 1]->array [L43] EXPR dummies[i + 1]->array[i] [L43] i = dummies[i + 1]->array[i] - 10 [L44] EXPR \read(*pa) [L44] COND FALSE !(i < *pa) [L18] EXPR pc->array [L18] EXPR pc->array[i] [L18] EXPR pc->array[i]->array [L18] EXPR pc->array[i]->array[i] [L18] return pc->array[i]->array[i] == i; [L47] COND TRUE !check(&cont, i) [L3] __assert_fail("0", "test27-2.c", 3, "reach_error") * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 75.5 MB. Free memory was 34.2 MB in the beginning and 34.1 MB in the end (delta: 37.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 355.27 ms. Allocated memory is still 113.2 MB. Free memory was 81.7 MB in the beginning and 88.9 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.61 ms. Allocated memory is still 113.2 MB. Free memory was 88.9 MB in the beginning and 87.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.25 ms. Allocated memory is still 113.2 MB. Free memory was 87.2 MB in the beginning and 85.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 826.79 ms. Allocated memory is still 113.2 MB. Free memory was 85.6 MB in the beginning and 62.1 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 16444.12 ms. Allocated memory was 113.2 MB in the beginning and 153.1 MB in the end (delta: 39.8 MB). Free memory was 62.1 MB in the beginning and 81.6 MB in the end (delta: -19.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * Witness Printer took 169.75 ms. Allocated memory is still 153.1 MB. Free memory was 81.6 MB in the beginning and 77.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...