./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i10_o10-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i10_o10-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/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 c66b9d1e2f6d9fc677cf33b6edee94991686d987 ................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:17:36,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:17:36,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:17:36,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:17:36,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:17:36,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:17:36,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:17:36,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:17:36,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:17:36,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:17:36,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:17:36,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:17:36,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:17:36,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:17:36,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:17:36,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:17:36,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:17:36,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:17:36,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:17:36,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:17:36,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:17:36,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:17:36,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:17:36,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:17:36,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:17:36,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:17:36,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:17:36,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:17:36,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:17:36,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:17:36,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:17:36,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:17:36,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:17:36,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:17:36,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:17:36,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:17:36,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:17:36,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:17:36,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:17:36,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:17:36,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:17:36,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:17:36,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:17:36,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:17:36,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:17:36,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:17:36,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:17:36,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:17:36,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:17:36,819 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:17:36,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:17:36,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:17:36,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:17:36,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:17:36,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:17:36,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:17:36,822 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:17:36,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:17:36,823 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:17:36,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:17:36,824 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:17:36,824 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:17:36,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:17:36,824 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:17:36,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:17:36,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:17:36,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:17:36,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:17:36,826 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:17:36,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:17:36,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:17:36,829 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_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c66b9d1e2f6d9fc677cf33b6edee94991686d987 [2020-12-01 17:17:37,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:17:37,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:17:37,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:17:37,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:17:37,220 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:17:37,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_i10_o10-2.c [2020-12-01 17:17:37,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/data/898899793/8067bd41acc146be88a1a40a0622c620/FLAGa2d9924d4 [2020-12-01 17:17:37,917 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:17:37,918 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/sv-benchmarks/c/recursive-simple/id_i10_o10-2.c [2020-12-01 17:17:37,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/data/898899793/8067bd41acc146be88a1a40a0622c620/FLAGa2d9924d4 [2020-12-01 17:17:38,257 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/data/898899793/8067bd41acc146be88a1a40a0622c620 [2020-12-01 17:17:38,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:17:38,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:17:38,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:17:38,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:17:38,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:17:38,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f1ba26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38, skipping insertion in model container [2020-12-01 17:17:38,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:17:38,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:17:38,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:17:38,616 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:17:38,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:17:38,669 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:17:38,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38 WrapperNode [2020-12-01 17:17:38,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:17:38,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:17:38,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:17:38,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:17:38,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:17:38,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:17:38,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:17:38,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:17:38,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38" (1/1) ... [2020-12-01 17:17:38,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:17:38,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:17:38,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:17:38,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:17:38,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:17:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:17:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:17:38,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:17:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:17:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-12-01 17:17:38,824 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-12-01 17:17:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:17:39,052 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:17:39,053 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 17:17:39,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:17:39 BoogieIcfgContainer [2020-12-01 17:17:39,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:17:39,057 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:17:39,057 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:17:39,088 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:17:39,094 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:17:39" (1/1) ... [2020-12-01 17:17:39,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:17:39,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:39,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-01 17:17:39,157 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-01 17:17:39,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:17:39,187 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:39,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:17:39,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:39,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2020-12-01 17:17:39,628 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-12-01 17:17:39,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 17:17:39,629 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:39,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:17:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2020-12-01 17:17:39,862 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-12-01 17:17:39,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 17:17:39,864 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 17:17:40,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:40,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2020-12-01 17:17:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2020-12-01 17:17:40,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-01 17:17:40,081 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:40,237 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-01 17:17:40,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:40,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2020-12-01 17:17:40,430 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2020-12-01 17:17:40,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 17:17:40,434 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 17:17:40,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 28 states and 44 transitions. [2020-12-01 17:17:40,713 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2020-12-01 17:17:40,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-01 17:17:40,715 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-01 17:17:40,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:40,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 53 transitions. [2020-12-01 17:17:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2020-12-01 17:17:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-01 17:17:40,937 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:41,068 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-01 17:17:41,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:41,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 34 states and 63 transitions. [2020-12-01 17:17:41,268 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2020-12-01 17:17:41,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-01 17:17:41,280 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-12-01 17:17:41,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:41,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 37 states and 74 transitions. [2020-12-01 17:17:41,626 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2020-12-01 17:17:41,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-01 17:17:41,632 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:41,757 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-12-01 17:17:41,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 40 states and 86 transitions. [2020-12-01 17:17:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 86 transitions. [2020-12-01 17:17:41,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-01 17:17:41,957 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-12-01 17:17:42,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:42,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 43 states and 99 transitions. [2020-12-01 17:17:42,321 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 99 transitions. [2020-12-01 17:17:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-01 17:17:42,322 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:43,864 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-12-01 17:17:52,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:52,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 77 states and 244 transitions. [2020-12-01 17:17:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 244 transitions. [2020-12-01 17:17:52,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-01 17:17:52,823 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:17:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:17:53,633 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-12-01 17:17:57,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:17:57,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 44 states and 46 transitions. [2020-12-01 17:17:57,027 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2020-12-01 17:17:57,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:17:57,028 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2020-12-01 17:17:57,033 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 17:17:57,144 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 1 [2020-12-01 17:17:57,282 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 1 [2020-12-01 17:17:57,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:17:57 ImpRootNode [2020-12-01 17:17:57,392 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:17:57,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:17:57,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:17:57,394 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:17:57,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:17:39" (3/4) ... [2020-12-01 17:17:57,397 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:17:57,403 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-12-01 17:17:57,408 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-01 17:17:57,409 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 17:17:57,409 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:17:57,409 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:17:57,472 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_255de3d7-687b-4c7b-a7f8-4d79e3b3dc5b/bin/ukojak/witness.graphml [2020-12-01 17:17:57,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:17:57,474 INFO L168 Benchmark]: Toolchain (without parser) took 19211.65 ms. Allocated memory was 102.8 MB in the beginning and 207.6 MB in the end (delta: 104.9 MB). Free memory was 69.8 MB in the beginning and 165.4 MB in the end (delta: -95.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:17:57,476 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory was 36.8 MB in the beginning and 36.8 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:17:57,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.60 ms. Allocated memory is still 102.8 MB. Free memory was 69.6 MB in the beginning and 79.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:17:57,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.83 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 78.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:17:57,488 INFO L168 Benchmark]: Boogie Preprocessor took 21.79 ms. Allocated memory is still 102.8 MB. Free memory was 78.1 MB in the beginning and 77.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:17:57,491 INFO L168 Benchmark]: RCFGBuilder took 316.73 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 65.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 17:17:57,492 INFO L168 Benchmark]: CodeCheck took 18335.89 ms. Allocated memory was 102.8 MB in the beginning and 207.6 MB in the end (delta: 104.9 MB). Free memory was 64.5 MB in the beginning and 167.5 MB in the end (delta: -103.0 MB). Peak memory consumption was 110.9 MB. Max. memory is 16.1 GB. [2020-12-01 17:17:57,493 INFO L168 Benchmark]: Witness Printer took 79.56 ms. Allocated memory is still 207.6 MB. Free memory was 167.5 MB in the beginning and 165.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:17:57,499 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 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.9s, OverallIterations: 13, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28680 SDtfs, 26692 SDslu, 43136 SDs, 0 SdLazy, 125832 SolverSat, 25648 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6846 GetRequests, 6374 SyntacticMatches, 272 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15264 ImplicationChecksByTransitivity, 12.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 504 NumberOfCodeBlocks, 504 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 492 ConstructedInterpolants, 0 QuantifiedInterpolants, 70608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 979/1584 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: 4]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory was 36.8 MB in the beginning and 36.8 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 407.60 ms. Allocated memory is still 102.8 MB. Free memory was 69.6 MB in the beginning and 79.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.83 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 78.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.79 ms. Allocated memory is still 102.8 MB. Free memory was 78.1 MB in the beginning and 77.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 316.73 ms. Allocated memory is still 102.8 MB. Free memory was 77.1 MB in the beginning and 65.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 18335.89 ms. Allocated memory was 102.8 MB in the beginning and 207.6 MB in the end (delta: 104.9 MB). Free memory was 64.5 MB in the beginning and 167.5 MB in the end (delta: -103.0 MB). Peak memory consumption was 110.9 MB. Max. memory is 16.1 GB. * Witness Printer took 79.56 ms. Allocated memory is still 207.6 MB. Free memory was 167.5 MB in the beginning and 165.4 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...