./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label42.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label42.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/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 eeefeeefd816c395f288507dfeefb0bc1cd20d5b ........................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:26:46,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:26:46,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:26:46,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:26:46,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:26:46,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:26:46,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:26:46,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:26:46,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:26:46,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:26:46,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:26:46,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:26:46,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:26:46,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:26:46,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:26:46,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:26:46,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:26:46,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:26:46,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:26:46,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:26:46,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:26:46,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:26:46,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:26:46,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:26:46,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:26:46,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:26:46,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:26:46,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:26:46,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:26:46,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:26:46,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:26:46,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:26:46,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:26:46,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:26:46,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:26:46,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:26:46,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:26:46,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:26:46,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:26:46,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:26:46,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:26:46,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:26:46,566 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:26:46,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:26:46,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:26:46,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:26:46,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:26:46,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:26:46,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:26:46,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:26:46,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:26:46,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:26:46,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:26:46,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:26:46,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:26:46,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:26:46,573 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:26:46,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:26:46,573 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:26:46,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:26:46,574 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:26:46,574 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:26:46,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:26:46,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:26:46,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:26:46,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:26:46,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:26:46,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:26:46,576 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:26:46,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:26:46,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:26:46,578 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_2dd1bde6-0f34-4193-a89f-b56afd74af6e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eeefeeefd816c395f288507dfeefb0bc1cd20d5b [2020-12-01 16:26:46,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:26:46,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:26:46,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:26:46,885 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:26:46,886 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:26:46,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem16_label42.c [2020-12-01 16:26:46,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/data/db510db68/b491b1bed02247b3bb539d9af9ea60eb/FLAGcedcb6423 [2020-12-01 16:26:47,773 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:26:47,774 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/sv-benchmarks/c/eca-rers2012/Problem16_label42.c [2020-12-01 16:26:47,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/data/db510db68/b491b1bed02247b3bb539d9af9ea60eb/FLAGcedcb6423 [2020-12-01 16:26:47,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/data/db510db68/b491b1bed02247b3bb539d9af9ea60eb [2020-12-01 16:26:47,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:26:47,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:26:47,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:26:47,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:26:47,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:26:47,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:26:47" (1/1) ... [2020-12-01 16:26:47,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122636e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:47, skipping insertion in model container [2020-12-01 16:26:47,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:26:47" (1/1) ... [2020-12-01 16:26:47,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:26:48,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:26:48,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:26:48,827 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:26:49,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:26:49,327 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:26:49,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49 WrapperNode [2020-12-01 16:26:49,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:26:49,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:26:49,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:26:49,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:26:49,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49" (1/1) ... [2020-12-01 16:26:49,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49" (1/1) ... [2020-12-01 16:26:49,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:26:49,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:26:49,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:26:49,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:26:49,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49" (1/1) ... [2020-12-01 16:26:49,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49" (1/1) ... [2020-12-01 16:26:49,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49" (1/1) ... [2020-12-01 16:26:49,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49" (1/1) ... [2020-12-01 16:26:49,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49" (1/1) ... [2020-12-01 16:26:49,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49" (1/1) ... [2020-12-01 16:26:49,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49" (1/1) ... [2020-12-01 16:26:49,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:26:49,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:26:49,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:26:49,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:26:49,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:26:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:26:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:26:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:26:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:26:49,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:28:11,798 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:28:11,798 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-01 16:28:11,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:28:11 BoogieIcfgContainer [2020-12-01 16:28:11,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:28:11,802 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:28:11,802 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:28:11,813 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:28:11,814 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:28:11" (1/1) ... [2020-12-01 16:28:11,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:28:11,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:11,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 16:28:11,858 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 16:28:11,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:28:11,860 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:12,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:28:12,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:12,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 16:28:12,200 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 16:28:12,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:28:12,200 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:13,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:28:24,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:24,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2020-12-01 16:28:24,707 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2020-12-01 16:28:24,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:28:24,709 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:27,144 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:28:35,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:35,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 30 states and 52 transitions. [2020-12-01 16:28:35,413 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 52 transitions. [2020-12-01 16:28:35,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:28:35,414 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:28:37,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:37,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 33 states and 57 transitions. [2020-12-01 16:28:37,247 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 57 transitions. [2020-12-01 16:28:37,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:28:37,248 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:39,320 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 16:28:40,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:40,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 31 states and 55 transitions. [2020-12-01 16:28:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 55 transitions. [2020-12-01 16:28:40,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:28:40,178 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-12-01 16:28:40,184 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 16:28:40,366 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 20 [2020-12-01 16:28:40,507 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 20 [2020-12-01 16:28:40,665 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 18 [2020-12-01 16:28:40,852 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 20 [2020-12-01 16:28:40,853 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:28:40,856 INFO L569 CodeCheckObserver]: Invariant with dag size 18 [2020-12-01 16:28:40,863 INFO L569 CodeCheckObserver]: Invariant with dag size 19 [2020-12-01 16:28:40,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:28:40 ImpRootNode [2020-12-01 16:28:40,865 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:28:40,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:28:40,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:28:40,868 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:28:40,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:28:11" (3/4) ... [2020-12-01 16:28:40,874 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:28:40,930 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 371 nodes and edges [2020-12-01 16:28:40,935 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-01 16:28:40,940 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 16:28:40,945 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 16:28:41,207 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2dd1bde6-0f34-4193-a89f-b56afd74af6e/bin/ukojak/witness.graphml [2020-12-01 16:28:41,208 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:28:41,209 INFO L168 Benchmark]: Toolchain (without parser) took 113275.72 ms. Allocated memory was 94.4 MB in the beginning and 5.0 GB in the end (delta: 4.9 GB). Free memory was 61.9 MB in the beginning and 4.3 GB in the end (delta: -4.2 GB). Peak memory consumption was 703.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:41,209 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 56.4 MB in the beginning and 56.3 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:28:41,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1392.43 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 61.9 MB in the beginning and 76.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:41,210 INFO L168 Benchmark]: Boogie Procedure Inliner took 193.04 ms. Allocated memory is still 113.2 MB. Free memory was 76.8 MB in the beginning and 53.2 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:41,211 INFO L168 Benchmark]: Boogie Preprocessor took 202.77 ms. Allocated memory is still 113.2 MB. Free memory was 53.2 MB in the beginning and 61.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:41,211 INFO L168 Benchmark]: RCFGBuilder took 82072.84 ms. Allocated memory was 113.2 MB in the beginning and 4.3 GB in the end (delta: 4.2 GB). Free memory was 61.9 MB in the beginning and 3.6 GB in the end (delta: -3.6 GB). Peak memory consumption was 866.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:41,212 INFO L168 Benchmark]: CodeCheck took 29063.85 ms. Allocated memory was 4.3 GB in the beginning and 5.0 GB in the end (delta: 687.9 MB). Free memory was 3.6 GB in the beginning and 4.3 GB in the end (delta: -681.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:41,212 INFO L168 Benchmark]: Witness Printer took 340.84 ms. Allocated memory is still 5.0 GB. Free memory was 4.3 GB in the beginning and 4.3 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:41,215 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, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 28.3s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 400 SDslu, 280 SDs, 0 SdLazy, 1150 SolverSat, 186 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 63.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 521 GetRequests, 466 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1176 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 7032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 21/44 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 - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1777]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((((!(a16 == 10) || a12 <= 4) || 5 < a12) || a15 <= 2) || 3 < a15) || a18 <= 134 - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: (((((11 <= a16 || a12 <= 4) || a16 <= 9) || a15 <= 2) || 3 < a15) || a18 <= 134) || 6 <= a12 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 56.4 MB in the beginning and 56.3 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1392.43 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 61.9 MB in the beginning and 76.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 193.04 ms. Allocated memory is still 113.2 MB. Free memory was 76.8 MB in the beginning and 53.2 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 202.77 ms. Allocated memory is still 113.2 MB. Free memory was 53.2 MB in the beginning and 61.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 82072.84 ms. Allocated memory was 113.2 MB in the beginning and 4.3 GB in the end (delta: 4.2 GB). Free memory was 61.9 MB in the beginning and 3.6 GB in the end (delta: -3.6 GB). Peak memory consumption was 866.8 MB. Max. memory is 16.1 GB. * CodeCheck took 29063.85 ms. Allocated memory was 4.3 GB in the beginning and 5.0 GB in the end (delta: 687.9 MB). Free memory was 3.6 GB in the beginning and 4.3 GB in the end (delta: -681.0 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Witness Printer took 340.84 ms. Allocated memory is still 5.0 GB. Free memory was 4.3 GB in the beginning and 4.3 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...