./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/css2003.i --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_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/css2003.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/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 f86f1d97a8eea81a810b00eedf9f945dcb9155ec ............................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:40:45,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:40:45,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:40:45,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:40:45,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:40:45,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:40:45,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:40:45,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:40:45,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:40:45,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:40:45,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:40:45,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:40:45,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:40:45,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:40:45,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:40:45,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:40:45,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:40:45,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:40:45,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:40:45,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:40:45,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:40:45,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:40:45,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:40:45,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:40:45,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:40:45,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:40:45,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:40:45,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:40:45,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:40:45,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:40:45,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:40:45,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:40:45,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:40:45,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:40:45,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:40:45,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:40:45,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:40:45,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:40:45,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:40:45,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:40:45,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:40:45,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:40:45,531 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:40:45,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:40:45,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:40:45,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:40:45,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:40:45,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:40:45,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:40:45,534 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:40:45,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:40:45,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:40:45,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:40:45,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:40:45,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:40:45,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:40:45,537 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:40:45,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:40:45,537 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:40:45,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:40:45,538 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:40:45,538 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:40:45,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:40:45,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:40:45,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:40:45,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:40:45,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:40:45,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:40:45,540 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:40:45,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:40:45,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:40:45,542 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_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f86f1d97a8eea81a810b00eedf9f945dcb9155ec [2020-11-28 04:40:45,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:40:45,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:40:45,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:40:45,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:40:45,909 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:40:45,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/../../sv-benchmarks/c/loop-lit/css2003.i [2020-11-28 04:40:46,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/data/3a8463955/97bb25d955f140d8b8235d829fd0767b/FLAG3e4546e27 [2020-11-28 04:40:46,398 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:40:46,399 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/sv-benchmarks/c/loop-lit/css2003.i [2020-11-28 04:40:46,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/data/3a8463955/97bb25d955f140d8b8235d829fd0767b/FLAG3e4546e27 [2020-11-28 04:40:46,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/data/3a8463955/97bb25d955f140d8b8235d829fd0767b [2020-11-28 04:40:46,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:40:46,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:40:46,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:46,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:40:46,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:40:46,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:46" (1/1) ... [2020-11-28 04:40:46,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d9d292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:46, skipping insertion in model container [2020-11-28 04:40:46,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:46" (1/1) ... [2020-11-28 04:40:46,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:40:46,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:40:47,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:47,038 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:40:47,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:40:47,066 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:40:47,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47 WrapperNode [2020-11-28 04:40:47,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:40:47,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:47,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:40:47,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:40:47,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:40:47,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:40:47,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:40:47,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:40:47,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:40:47,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:40:47,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:40:47,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:40:47,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/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 04:40:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:40:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:40:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:40:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:40:47,453 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:40:47,453 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:40:47,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:47 BoogieIcfgContainer [2020-11-28 04:40:47,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:40:47,456 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:40:47,456 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:40:47,481 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:40:47,481 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:47" (1/1) ... [2020-11-28 04:40:47,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:40:47,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:47,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-11-28 04:40:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-11-28 04:40:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:40:47,532 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:47,762 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 04:40:47,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-11-28 04:40:47,896 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-28 04:40:47,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:40:47,897 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:40:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:40:47,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:40:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:40:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2020-11-28 04:40:48,253 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2020-11-28 04:40:48,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:40:48,253 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2020-11-28 04:40:48,260 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:40:48,300 INFO L569 CodeCheckObserver]: Invariant with dag size 15 [2020-11-28 04:40:48,309 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:40:48,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:40:48 ImpRootNode [2020-11-28 04:40:48,309 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:40:48,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:40:48,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:40:48,310 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:40:48,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:47" (3/4) ... [2020-11-28 04:40:48,316 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:40:48,327 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-28 04:40:48,327 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:40:48,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:40:48,328 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:40:48,403 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6d9dc53b-d10f-4184-a52a-afbaf4c000cd/bin/ukojak/witness.graphml [2020-11-28 04:40:48,403 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:40:48,407 INFO L168 Benchmark]: Toolchain (without parser) took 1593.90 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 51.9 MB in the beginning and 77.3 MB in the end (delta: -25.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:48,407 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 83.9 MB. Free memory was 57.2 MB in the beginning and 57.1 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:48,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.34 ms. Allocated memory is still 83.9 MB. Free memory was 51.6 MB in the beginning and 62.5 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.46 ms. Allocated memory is still 83.9 MB. Free memory was 62.5 MB in the beginning and 61.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,409 INFO L168 Benchmark]: Boogie Preprocessor took 29.38 ms. Allocated memory is still 83.9 MB. Free memory was 61.1 MB in the beginning and 60.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:40:48,409 INFO L168 Benchmark]: RCFGBuilder took 328.22 ms. Allocated memory is still 83.9 MB. Free memory was 60.1 MB in the beginning and 47.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,410 INFO L168 Benchmark]: CodeCheck took 853.25 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 47.2 MB in the beginning and 79.5 MB in the end (delta: -32.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,410 INFO L168 Benchmark]: Witness Printer took 93.56 ms. Allocated memory is still 100.7 MB. Free memory was 79.5 MB in the beginning and 77.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:40:48,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 8 SDslu, 4 SDs, 0 SdLazy, 54 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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: 12]: 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: 17]: Loop Invariant Derived loop invariant: ((i == 1 && 0 <= k) && k <= 1) || ((i + k <= 2 && 1 <= i + k) && 2 <= i) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 83.9 MB. Free memory was 57.2 MB in the beginning and 57.1 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.34 ms. Allocated memory is still 83.9 MB. Free memory was 51.6 MB in the beginning and 62.5 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.46 ms. Allocated memory is still 83.9 MB. Free memory was 62.5 MB in the beginning and 61.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.38 ms. Allocated memory is still 83.9 MB. Free memory was 61.1 MB in the beginning and 60.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 328.22 ms. Allocated memory is still 83.9 MB. Free memory was 60.1 MB in the beginning and 47.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 853.25 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 47.2 MB in the beginning and 79.5 MB in the end (delta: -32.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * Witness Printer took 93.56 ms. Allocated memory is still 100.7 MB. Free memory was 79.5 MB in the beginning and 77.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...