./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/just_assert.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_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/just_assert.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/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 3328176c3b6f093b3cc3ccbafda909def9de4e6c .................................................................................................................................................................................................................. 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 04:43:45,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:45,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:45,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:45,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:45,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:45,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:45,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:45,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:45,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:45,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:45,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:45,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:45,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:45,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:46,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:46,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:46,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:46,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:46,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:46,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:46,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:46,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:46,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:46,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:46,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:46,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:46,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:46,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:46,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:46,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:46,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:46,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:46,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:46,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:46,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:46,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:46,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:46,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:46,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:46,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:46,055 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:43:46,093 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:46,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:46,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:43:46,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:43:46,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:46,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:46,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:46,097 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:43:46,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:46,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:43:46,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:46,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:43:46,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:46,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:43:46,100 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:43:46,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:43:46,100 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:46,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:43:46,101 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:46,101 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:46,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:46,101 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:46,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:46,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:46,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:46,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:43:46,103 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:46,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:46,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:43:46,105 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_6212fb35-9439-4c66-8123-bdbf24fc3359/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3328176c3b6f093b3cc3ccbafda909def9de4e6c [2020-11-28 04:43:46,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:46,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:46,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:46,460 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:46,462 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:46,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/../../sv-benchmarks/c/ldv-regression/just_assert.i [2020-11-28 04:43:46,545 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/data/79a6189c5/78ea0d06ecb1422e8f0ea3b01aef4c9c/FLAG804467944 [2020-11-28 04:43:47,087 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:47,088 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/sv-benchmarks/c/ldv-regression/just_assert.i [2020-11-28 04:43:47,098 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/data/79a6189c5/78ea0d06ecb1422e8f0ea3b01aef4c9c/FLAG804467944 [2020-11-28 04:43:47,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/data/79a6189c5/78ea0d06ecb1422e8f0ea3b01aef4c9c [2020-11-28 04:43:47,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:47,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:47,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:47,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:47,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:47,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b1b11ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47, skipping insertion in model container [2020-11-28 04:43:47,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:47,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:47,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:47,678 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:47,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:47,738 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:47,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47 WrapperNode [2020-11-28 04:43:47,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:47,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:47,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:47,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:47,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:47,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:47,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:47,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:47,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... [2020-11-28 04:43:47,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:47,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:47,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:47,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:47,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/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 04:43:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:47,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:47,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:43:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:43:48,254 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:48,255 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:43:48,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:48 BoogieIcfgContainer [2020-11-28 04:43:48,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:48,258 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:48,258 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:48,269 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:48,270 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:48" (1/1) ... [2020-11-28 04:43:48,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-11-28 04:43:48,326 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-11-28 04:43:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:43:48,329 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:48,472 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 04:43:48,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:48,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2020-11-28 04:43:48,482 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2020-11-28 04:43:48,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:43:48,483 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2020-11-28 04:43:48,489 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:43:48,534 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:43:48,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:43:48 ImpRootNode [2020-11-28 04:43:48,539 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:43:48,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:43:48,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:43:48,541 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:43:48,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:48" (3/4) ... [2020-11-28 04:43:48,547 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:43:48,565 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 04:43:48,566 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:43:48,566 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:43:48,567 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:43:48,625 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6212fb35-9439-4c66-8123-bdbf24fc3359/bin/ukojak/witness.graphml [2020-11-28 04:43:48,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:43:48,629 INFO L168 Benchmark]: Toolchain (without parser) took 1149.58 ms. Allocated memory is still 94.4 MB. Free memory was 65.5 MB in the beginning and 47.2 MB in the end (delta: 18.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:48,630 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory was 54.2 MB in the beginning and 54.2 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:48,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.70 ms. Allocated memory is still 94.4 MB. Free memory was 65.3 MB in the beginning and 71.6 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:48,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.14 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 70.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:48,639 INFO L168 Benchmark]: Boogie Preprocessor took 20.81 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 69.5 MB in the end (delta: 836.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:48,640 INFO L168 Benchmark]: RCFGBuilder took 456.22 ms. Allocated memory is still 94.4 MB. Free memory was 69.5 MB in the beginning and 58.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:48,641 INFO L168 Benchmark]: CodeCheck took 281.16 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 49.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:48,642 INFO L168 Benchmark]: Witness Printer took 84.88 ms. Allocated memory is still 94.4 MB. Free memory was 49.3 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:48,651 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, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.1s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 3]: 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: 9]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory was 54.2 MB in the beginning and 54.2 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.70 ms. Allocated memory is still 94.4 MB. Free memory was 65.3 MB in the beginning and 71.6 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.14 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 70.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.81 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 69.5 MB in the end (delta: 836.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 456.22 ms. Allocated memory is still 94.4 MB. Free memory was 69.5 MB in the beginning and 58.3 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 281.16 ms. Allocated memory is still 94.4 MB. Free memory was 58.3 MB in the beginning and 49.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 84.88 ms. Allocated memory is still 94.4 MB. Free memory was 49.3 MB in the beginning and 47.2 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...