./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/rule60_list.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_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule60_list.i -s /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/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 42d0efa4152259a598ae991dec084e493c366d6a .......................................................................................................................................................................................................................................... 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 04:43:18,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:18,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:18,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:18,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:18,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:18,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:18,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:18,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:18,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:18,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:18,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:18,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:18,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:18,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:18,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:18,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:18,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:18,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:18,589 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:18,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:18,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:18,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:18,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:18,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:18,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:18,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:18,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:18,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:18,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:18,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:18,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:18,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:18,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:18,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:18,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:18,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:18,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:18,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:18,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:18,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:18,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:43:18,685 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:18,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:18,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:43:18,688 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:43:18,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:18,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:18,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:18,689 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:43:18,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:18,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:43:18,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:18,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:43:18,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:18,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:43:18,692 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:43:18,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:43:18,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:18,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:43:18,693 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:18,694 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:18,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:18,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:18,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:18,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:18,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:18,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:43:18,696 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:18,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:18,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:43:18,696 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_58d77bab-8b53-4057-911e-6eb969de1bc4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42d0efa4152259a598ae991dec084e493c366d6a [2020-11-28 04:43:19,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:19,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:19,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:19,128 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:19,130 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:19,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/../../sv-benchmarks/c/ldv-regression/rule60_list.i [2020-11-28 04:43:19,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/data/70a6853eb/09cb59d7d7cb40339ffafea6708da479/FLAGab503fb75 [2020-11-28 04:43:19,832 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:19,835 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/sv-benchmarks/c/ldv-regression/rule60_list.i [2020-11-28 04:43:19,856 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/data/70a6853eb/09cb59d7d7cb40339ffafea6708da479/FLAGab503fb75 [2020-11-28 04:43:20,090 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/data/70a6853eb/09cb59d7d7cb40339ffafea6708da479 [2020-11-28 04:43:20,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:20,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:20,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:20,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:20,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:20,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7602c362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20, skipping insertion in model container [2020-11-28 04:43:20,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:20,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:20,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:20,577 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:20,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:20,686 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:20,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20 WrapperNode [2020-11-28 04:43:20,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:20,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:20,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:20,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:20,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:20,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:20,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:20,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:20,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... [2020-11-28 04:43:20,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:20,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:20,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:20,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:20,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/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 04:43:20,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:43:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:43:20,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:43:20,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-11-28 04:43:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-11-28 04:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-28 04:43:20,828 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-11-28 04:43:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-11-28 04:43:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:43:20,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:20,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:21,442 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:21,442 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 04:43:21,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:21 BoogieIcfgContainer [2020-11-28 04:43:21,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:21,445 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:21,446 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:21,458 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:21,458 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:21" (1/1) ... [2020-11-28 04:43:21,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:21,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:21,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-11-28 04:43:21,522 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-11-28 04:43:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:43:21,527 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:21,893 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 04:43:22,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 22 transitions. [2020-11-28 04:43:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-11-28 04:43:22,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:43:22,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:22,228 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 04:43:22,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:22,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 20 transitions. [2020-11-28 04:43:22,544 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-11-28 04:43:22,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:43:22,545 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:22,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:22,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:22,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 13 states and 14 transitions. [2020-11-28 04:43:22,996 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-28 04:43:22,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:43:22,997 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2020-11-28 04:43:23,006 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:43:23,096 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:43:23,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:43:23 ImpRootNode [2020-11-28 04:43:23,101 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:43:23,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:43:23,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:43:23,103 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:43:23,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:21" (3/4) ... [2020-11-28 04:43:23,107 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:43:23,114 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure list_add [2020-11-28 04:43:23,115 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __blast_assert [2020-11-28 04:43:23,132 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-28 04:43:23,132 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 04:43:23,132 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:43:23,133 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:43:23,199 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_58d77bab-8b53-4057-911e-6eb969de1bc4/bin/ukojak/witness.graphml [2020-11-28 04:43:23,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:43:23,208 INFO L168 Benchmark]: Toolchain (without parser) took 3113.04 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 47.1 MB in the beginning and 42.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:23,208 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory was 54.3 MB in the beginning and 54.2 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:23,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 590.55 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 47.0 MB in the beginning and 67.0 MB in the end (delta: -20.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:23,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.93 ms. Allocated memory is still 100.7 MB. Free memory was 67.0 MB in the beginning and 65.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:43:23,209 INFO L168 Benchmark]: Boogie Preprocessor took 28.66 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 63.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:23,210 INFO L168 Benchmark]: RCFGBuilder took 684.25 ms. Allocated memory is still 100.7 MB. Free memory was 63.9 MB in the beginning and 72.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:23,210 INFO L168 Benchmark]: CodeCheck took 1656.40 ms. Allocated memory is still 100.7 MB. Free memory was 72.0 MB in the beginning and 45.6 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:23,211 INFO L168 Benchmark]: Witness Printer took 100.15 ms. Allocated memory is still 100.7 MB. Free memory was 44.9 MB in the beginning and 42.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:43:23,213 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 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 16 SDslu, 12 SDs, 0 SdLazy, 218 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 278 GetRequests, 250 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 1630 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 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: 534]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory was 54.3 MB in the beginning and 54.2 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 590.55 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 47.0 MB in the beginning and 67.0 MB in the end (delta: -20.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.93 ms. Allocated memory is still 100.7 MB. Free memory was 67.0 MB in the beginning and 65.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.66 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 63.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 684.25 ms. Allocated memory is still 100.7 MB. Free memory was 63.9 MB in the beginning and 72.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * CodeCheck took 1656.40 ms. Allocated memory is still 100.7 MB. Free memory was 72.0 MB in the beginning and 45.6 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. * Witness Printer took 100.15 ms. Allocated memory is still 100.7 MB. Free memory was 44.9 MB in the beginning and 42.8 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...