./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_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test27-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/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 [2020-11-28 04:36:11,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:36:11,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:36:11,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:36:11,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:36:11,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:36:11,340 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:36:11,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:36:11,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:36:11,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:36:11,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:36:11,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:36:11,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:36:11,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:36:11,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:36:11,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:36:11,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:36:11,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:36:11,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:36:11,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:36:11,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:36:11,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:36:11,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:36:11,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:36:11,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:36:11,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:36:11,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:36:11,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:36:11,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:36:11,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:36:11,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:36:11,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:36:11,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:36:11,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:36:11,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:36:11,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:36:11,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:36:11,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:36:11,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:36:11,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:36:11,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:36:11,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:36:11,458 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:36:11,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:36:11,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:36:11,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:36:11,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:36:11,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:36:11,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:36:11,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:36:11,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:36:11,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:36:11,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:36:11,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:36:11,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:36:11,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:36:11,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:36:11,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:36:11,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:36:11,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:36:11,463 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:36:11,464 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:36:11,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:36:11,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:36:11,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:36:11,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:36:11,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:36:11,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:36:11,465 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:36:11,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:36:11,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:36:11,466 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_9bc170bf-7bf5-4839-a23a-18b11d7266a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2292364e3df3925555991c57490c078c89b959e0 [2020-11-28 04:36:11,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:36:11,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:36:11,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:36:11,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:36:11,776 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:36:11,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/../../sv-benchmarks/c/ldv-regression/test27-2.c [2020-11-28 04:36:11,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/data/f84790829/1999e2b5e4f14c2783c9b689c28dcd7e/FLAG847347e63 [2020-11-28 04:36:12,355 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:36:12,356 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/sv-benchmarks/c/ldv-regression/test27-2.c [2020-11-28 04:36:12,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/data/f84790829/1999e2b5e4f14c2783c9b689c28dcd7e/FLAG847347e63 [2020-11-28 04:36:12,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/data/f84790829/1999e2b5e4f14c2783c9b689c28dcd7e [2020-11-28 04:36:12,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:36:12,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:36:12,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:36:12,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:36:12,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:36:12,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:12,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aa0570b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12, skipping insertion in model container [2020-11-28 04:36:12,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:12,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:36:12,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:36:12,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:36:12,955 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:36:12,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:36:12,992 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:36:12,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12 WrapperNode [2020-11-28 04:36:12,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:36:12,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:36:12,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:36:12,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:36:13,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:13,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:13,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:36:13,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:36:13,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:36:13,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:36:13,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:13,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:13,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:13,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:13,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:13,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:13,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12" (1/1) ... [2020-11-28 04:36:13,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:36:13,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:36:13,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:36:13,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:36:13,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/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 04:36:13,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 04:36:13,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:36:13,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 04:36:13,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:36:13,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:36:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:36:13,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:36:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:36:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:36:13,760 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:36:13,760 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 04:36:13,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:13 BoogieIcfgContainer [2020-11-28 04:36:13,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:36:13,764 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:36:13,764 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:36:13,775 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:36:13,776 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:13" (1/1) ... [2020-11-28 04:36:13,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:36:13,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:13,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2020-11-28 04:36:13,823 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2020-11-28 04:36:13,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:36:13,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:14,052 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 04:36:14,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:14,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-28 04:36:14,135 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-28 04:36:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:36:14,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:14,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:14,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2020-11-28 04:36:14,319 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2020-11-28 04:36:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:36:14,320 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:14,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:14,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:14,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2020-11-28 04:36:14,494 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-11-28 04:36:14,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:36:14,494 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:14,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:14,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:14,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2020-11-28 04:36:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2020-11-28 04:36:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:36:14,669 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:14,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:14,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2020-11-28 04:36:14,866 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-11-28 04:36:14,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:36:14,866 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:14,969 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:15,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-11-28 04:36:15,048 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-11-28 04:36:15,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:36:15,048 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:15,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:15,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2020-11-28 04:36:15,221 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2020-11-28 04:36:15,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:36:15,221 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:15,330 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:15,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:15,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2020-11-28 04:36:15,427 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-11-28 04:36:15,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 04:36:15,427 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:15,532 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:15,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:15,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2020-11-28 04:36:15,627 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-11-28 04:36:15,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 04:36:15,628 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:15,715 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:15,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:15,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2020-11-28 04:36:15,811 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-28 04:36:15,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:36:15,812 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:36:16,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:36:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:36:16,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:36:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:36:18,973 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:36:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:36:26,033 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:36:26,178 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2020-11-28 04:36:26,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:36:26 ImpRootNode [2020-11-28 04:36:26,224 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:36:26,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:36:26,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:36:26,226 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:36:26,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:13" (3/4) ... [2020-11-28 04:36:26,229 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:36:26,354 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9bc170bf-7bf5-4839-a23a-18b11d7266a2/bin/ukojak/witness.graphml [2020-11-28 04:36:26,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:36:26,357 INFO L168 Benchmark]: Toolchain (without parser) took 13635.33 ms. Allocated memory was 92.3 MB in the beginning and 148.9 MB in the end (delta: 56.6 MB). Free memory was 61.8 MB in the beginning and 64.6 MB in the end (delta: -2.7 MB). Peak memory consumption was 53.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:26,373 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory is still 52.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:26,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.35 ms. Allocated memory is still 92.3 MB. Free memory was 61.6 MB in the beginning and 68.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:26,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.73 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 66.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:26,376 INFO L168 Benchmark]: Boogie Preprocessor took 30.88 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 65.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:26,377 INFO L168 Benchmark]: RCFGBuilder took 693.67 ms. Allocated memory is still 92.3 MB. Free memory was 65.4 MB in the beginning and 41.9 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:26,379 INFO L168 Benchmark]: CodeCheck took 12461.05 ms. Allocated memory was 92.3 MB in the beginning and 148.9 MB in the end (delta: 56.6 MB). Free memory was 41.9 MB in the beginning and 67.7 MB in the end (delta: -25.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:26,380 INFO L168 Benchmark]: Witness Printer took 129.04 ms. Allocated memory is still 148.9 MB. Free memory was 67.7 MB in the beginning and 64.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:26,386 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: 12.3s, 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, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 949 GetRequests, 875 SyntacticMatches, 36 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 0.5s 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 0.27 ms. Allocated memory is still 92.3 MB. Free memory is still 52.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.35 ms. Allocated memory is still 92.3 MB. Free memory was 61.6 MB in the beginning and 68.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.73 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 66.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.88 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 65.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 693.67 ms. Allocated memory is still 92.3 MB. Free memory was 65.4 MB in the beginning and 41.9 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 12461.05 ms. Allocated memory was 92.3 MB in the beginning and 148.9 MB in the end (delta: 56.6 MB). Free memory was 41.9 MB in the beginning and 67.7 MB in the end (delta: -25.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 16.1 GB. * Witness Printer took 129.04 ms. Allocated memory is still 148.9 MB. Free memory was 67.7 MB in the beginning and 64.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...