./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec-1.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_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/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 20d5e20d9a05badce6014033a9e9f921320cf457 ........................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:27:51,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:27:51,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:27:51,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:27:51,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:27:51,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:27:51,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:27:51,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:27:51,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:27:51,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:27:51,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:27:51,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:27:51,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:27:51,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:27:51,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:27:51,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:27:51,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:27:51,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:27:51,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:27:51,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:27:51,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:27:51,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:27:51,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:27:51,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:27:51,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:27:51,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:27:51,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:27:51,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:27:51,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:27:51,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:27:51,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:27:51,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:27:51,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:27:51,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:27:51,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:27:51,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:27:51,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:27:51,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:27:51,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:27:51,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:27:51,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:27:51,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 16:27:51,864 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:27:51,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:27:51,867 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:27:51,868 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:27:51,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:27:51,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:27:51,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:27:51,871 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:27:51,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:27:51,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:27:51,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:27:51,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:27:51,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:27:51,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:27:51,875 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:27:51,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:27:51,875 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:27:51,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:27:51,876 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:27:51,876 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:27:51,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:27:51,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:27:51,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:27:51,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:27:51,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:27:51,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:27:51,879 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:27:51,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:27:51,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:27:51,880 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_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20d5e20d9a05badce6014033a9e9f921320cf457 [2020-12-01 16:27:52,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:27:52,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:27:52,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:27:52,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:27:52,363 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:27:52,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/../../sv-benchmarks/c/recursive-simple/afterrec-1.c [2020-12-01 16:27:52,450 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/data/2111b4b14/c204b4711ac3458d94e9a8d0d0126e35/FLAG241c465c0 [2020-12-01 16:27:53,210 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:27:53,212 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/sv-benchmarks/c/recursive-simple/afterrec-1.c [2020-12-01 16:27:53,226 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/data/2111b4b14/c204b4711ac3458d94e9a8d0d0126e35/FLAG241c465c0 [2020-12-01 16:27:53,548 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/data/2111b4b14/c204b4711ac3458d94e9a8d0d0126e35 [2020-12-01 16:27:53,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:27:53,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:27:53,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:27:53,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:27:53,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:27:53,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:53,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52832932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53, skipping insertion in model container [2020-12-01 16:27:53,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:53,595 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:27:53,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:27:53,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:27:53,916 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:27:53,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:27:53,965 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:27:53,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53 WrapperNode [2020-12-01 16:27:53,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:27:53,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:27:53,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:27:53,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:27:53,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:53,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:54,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:27:54,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:27:54,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:27:54,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:27:54,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:54,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:54,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:54,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:54,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:54,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:54,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:54,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:27:54,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:27:54,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:27:54,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:27:54,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:27:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-12-01 16:27:54,175 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-12-01 16:27:54,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:27:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:27:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:27:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:27:54,623 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:27:54,623 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 16:27:54,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:27:54 BoogieIcfgContainer [2020-12-01 16:27:54,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:27:54,628 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:27:54,628 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:27:54,644 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:27:54,645 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:27:54" (1/1) ... [2020-12-01 16:27:54,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:27:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:54,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2020-12-01 16:27:54,766 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-12-01 16:27:54,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:27:54,773 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:27:54,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:27:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:27:55,048 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:27:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:27:55,238 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:27:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:27:55,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:27:55,337 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-12-01 16:27:55,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:27:55 ImpRootNode [2020-12-01 16:27:55,392 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:27:55,398 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:27:55,398 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:27:55,398 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:27:55,399 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:27:54" (3/4) ... [2020-12-01 16:27:55,405 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:27:55,507 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c7d43fcb-24fd-47f6-9a2a-a0a2be728d69/bin/ukojak/witness.graphml [2020-12-01 16:27:55,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:27:55,510 INFO L168 Benchmark]: Toolchain (without parser) took 1954.39 ms. Allocated memory is still 94.4 MB. Free memory was 63.4 MB in the beginning and 41.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:55,512 INFO L168 Benchmark]: CDTParser took 0.38 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: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:27:55,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.10 ms. Allocated memory is still 94.4 MB. Free memory was 63.2 MB in the beginning and 71.6 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:55,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.38 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. [2020-12-01 16:27:55,519 INFO L168 Benchmark]: Boogie Preprocessor took 39.26 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 69.6 MB in the end (delta: 783.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:55,520 INFO L168 Benchmark]: RCFGBuilder took 561.02 ms. Allocated memory is still 94.4 MB. Free memory was 69.2 MB in the beginning and 57.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:55,525 INFO L168 Benchmark]: CodeCheck took 764.33 ms. Allocated memory is still 94.4 MB. Free memory was 57.8 MB in the beginning and 43.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:55,526 INFO L168 Benchmark]: Witness Printer took 109.78 ms. Allocated memory is still 94.4 MB. Free memory was 43.6 MB in the beginning and 41.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:27:55,531 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, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 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, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] CALL f(4) [L6] COND FALSE !(n<3) [L7] n-- [L8] CALL f(n) [L6] COND FALSE !(n<3) [L7] n-- [L8] CALL f(n) [L6] COND TRUE n<3 [L8] RET f(n) [L3] __assert_fail("0", "afterrec-1.c", 3, "reach_error") * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 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: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 396.10 ms. Allocated memory is still 94.4 MB. Free memory was 63.2 MB in the beginning and 71.6 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.38 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 39.26 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 69.6 MB in the end (delta: 783.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 561.02 ms. Allocated memory is still 94.4 MB. Free memory was 69.2 MB in the beginning and 57.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 764.33 ms. Allocated memory is still 94.4 MB. Free memory was 57.8 MB in the beginning and 43.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 109.78 ms. Allocated memory is still 94.4 MB. Free memory was 43.6 MB in the beginning and 41.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...