./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e8f83f4c04fbac90273b8f8e733ac05d1463068f ........................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-01 04:23:49,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 04:23:49,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 04:23:49,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 04:23:49,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 04:23:49,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 04:23:49,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 04:23:49,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 04:23:49,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 04:23:49,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 04:23:49,132 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 04:23:49,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 04:23:49,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 04:23:49,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 04:23:49,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 04:23:49,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 04:23:49,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 04:23:49,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 04:23:49,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 04:23:49,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 04:23:49,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 04:23:49,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 04:23:49,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 04:23:49,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 04:23:49,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 04:23:49,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 04:23:49,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 04:23:49,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 04:23:49,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 04:23:49,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 04:23:49,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 04:23:49,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 04:23:49,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 04:23:49,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 04:23:49,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 04:23:49,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 04:23:49,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 04:23:49,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 04:23:49,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 04:23:49,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 04:23:49,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 04:23:49,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-12-01 04:23:49,161 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 04:23:49,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 04:23:49,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 04:23:49,162 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 04:23:49,162 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 04:23:49,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 04:23:49,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 04:23:49,163 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 04:23:49,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 04:23:49,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 04:23:49,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 04:23:49,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 04:23:49,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 04:23:49,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 04:23:49,164 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 04:23:49,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 04:23:49,164 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 04:23:49,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 04:23:49,164 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 04:23:49,164 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 04:23:49,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 04:23:49,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 04:23:49,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 04:23:49,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 04:23:49,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 04:23:49,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 04:23:49,165 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 04:23:49,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 04:23:49,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 04:23:49,166 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b0989a13-a780-48d5-8fe3-529435302968/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(__VERIFIER_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 -> e8f83f4c04fbac90273b8f8e733ac05d1463068f [2019-12-01 04:23:49,278 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 04:23:49,285 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 04:23:49,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 04:23:49,288 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 04:23:49,288 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 04:23:49,289 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/../../sv-benchmarks/c/recursive-simple/afterrec-1.c [2019-12-01 04:23:49,326 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/data/8a3f492d0/fe27fc47a6494fc9a3ede6a568fb9e0c/FLAG785b1a5e3 [2019-12-01 04:23:49,739 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 04:23:49,739 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/sv-benchmarks/c/recursive-simple/afterrec-1.c [2019-12-01 04:23:49,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/data/8a3f492d0/fe27fc47a6494fc9a3ede6a568fb9e0c/FLAG785b1a5e3 [2019-12-01 04:23:49,751 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/data/8a3f492d0/fe27fc47a6494fc9a3ede6a568fb9e0c [2019-12-01 04:23:49,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 04:23:49,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 04:23:49,754 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 04:23:49,754 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 04:23:49,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 04:23:49,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30102b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49, skipping insertion in model container [2019-12-01 04:23:49,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 04:23:49,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 04:23:49,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 04:23:49,866 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 04:23:49,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 04:23:49,919 INFO L208 MainTranslator]: Completed translation [2019-12-01 04:23:49,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49 WrapperNode [2019-12-01 04:23:49,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 04:23:49,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 04:23:49,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 04:23:49,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 04:23:49,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 04:23:49,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 04:23:49,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 04:23:49,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 04:23:49,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49" (1/1) ... [2019-12-01 04:23:49,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 04:23:49,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 04:23:49,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 04:23:49,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 04:23:49,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:23:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/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 [2019-12-01 04:23:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-12-01 04:23:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-12-01 04:23:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 04:23:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 04:23:50,082 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 04:23:50,082 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-01 04:23:50,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:23:50 BoogieIcfgContainer [2019-12-01 04:23:50,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 04:23:50,084 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 04:23:50,084 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 04:23:50,093 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 04:23:50,093 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:23:50" (1/1) ... [2019-12-01 04:23:50,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 04:23:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 04:23:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2019-12-01 04:23:50,125 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-12-01 04:23:50,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 04:23:50,130 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 04:23:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 04:23:50,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 04:23:50,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 04:23:50,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 16 transitions. [2019-12-01 04:23:50,365 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-12-01 04:23:50,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 04:23:50,366 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 04:23:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 04:23:50,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 04:23:50,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 04:23:50,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2019-12-01 04:23:50,448 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-12-01 04:23:50,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-01 04:23:50,449 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 04:23:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 04:23:50,526 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 04:23:50,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 04:23:50,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-12-01 04:23:50,663 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-12-01 04:23:50,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-01 04:23:50,663 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 04:23:50,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 04:23:50,706 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 04:23:50,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 04:23:50,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-12-01 04:23:50,712 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-12-01 04:23:50,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-01 04:23:50,713 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 04:23:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 04:23:50,752 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 04:23:50,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 04:23:50,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-12-01 04:23:50,758 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-12-01 04:23:50,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 04:23:50,758 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 04:23:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 04:23:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 04:23:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 04:23:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 04:23:50,790 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2019-12-01 04:23:50,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:23:50 ImpRootNode [2019-12-01 04:23:50,811 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 04:23:50,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 04:23:50,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 04:23:50,811 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 04:23:50,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:23:50" (3/4) ... [2019-12-01 04:23:50,813 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 04:23:50,841 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b0989a13-a780-48d5-8fe3-529435302968/bin/ukojak/witness.graphml [2019-12-01 04:23:50,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 04:23:50,843 INFO L168 Benchmark]: Toolchain (without parser) took 1088.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 944.7 MB in the beginning and 986.5 MB in the end (delta: -41.8 MB). Peak memory consumption was 72.5 MB. Max. memory is 11.5 GB. [2019-12-01 04:23:50,843 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 04:23:50,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-12-01 04:23:50,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 04:23:50,844 INFO L168 Benchmark]: Boogie Preprocessor took 9.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 04:23:50,845 INFO L168 Benchmark]: RCFGBuilder took 133.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-12-01 04:23:50,845 INFO L168 Benchmark]: CodeCheck took 727.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.5 MB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 11.5 GB. [2019-12-01 04:23:50,846 INFO L168 Benchmark]: Witness Printer took 30.10 ms. Allocated memory is still 1.1 GB. Free memory is still 986.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 04:23:50,848 INFO L335 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. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 128 SDtfs, 32 SDslu, 32 SDs, 0 SdLazy, 544 SolverSat, 256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 435 GetRequests, 373 SyntacticMatches, 35 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 1773 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 0 PerfectInterpolantSequences, 27/49 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: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] CALL f(4) VAL [\old(n)=4] [L4] COND FALSE !(n<3) [L5] n-- VAL [\old(n)=4, n=3] [L6] CALL f(n) VAL [\old(n)=3] [L4] COND FALSE !(n<3) [L5] n-- VAL [\old(n)=3, n=2] [L6] CALL f(n) VAL [\old(n)=2] [L4] COND TRUE n<3 VAL [\old(n)=2, n=2] [L6] RET f(n) VAL [\old(n)=3, n=2] [L7] __VERIFIER_error() VAL [\old(n)=3, n=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 165.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 133.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 727.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.5 MB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 11.5 GB. * Witness Printer took 30.10 ms. Allocated memory is still 1.1 GB. Free memory is still 986.5 MB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...