./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/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 d709c141e865b9e316ae50970f4a7a44b0dfd8eb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-a4ecdab [2020-11-28 04:44:31,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:44:31,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:44:31,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:44:31,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:44:31,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:44:31,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:44:32,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:44:32,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:44:32,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:44:32,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:44:32,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:44:32,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:44:32,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:44:32,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:44:32,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:44:32,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:44:32,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:44:32,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:44:32,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:44:32,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:44:32,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:44:32,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:44:32,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:44:32,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:44:32,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:44:32,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:44:32,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:44:32,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:44:32,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:44:32,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:44:32,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:44:32,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:44:32,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:44:32,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:44:32,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:44:32,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:44:32,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:44:32,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:44:32,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:44:32,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:44:32,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:44:32,104 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:44:32,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:44:32,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:44:32,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:44:32,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:44:32,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:44:32,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:44:32,107 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:44:32,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:44:32,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:44:32,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:44:32,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:44:32,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:44:32,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:44:32,108 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:44:32,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:44:32,108 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:44:32,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:44:32,109 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:44:32,109 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:44:32,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:44:32,109 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:44:32,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:32,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:44:32,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:44:32,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:44:32,118 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:44:32,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:44:32,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:44:32,121 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_7fca4ffa-8920-4022-8359-1c4e573e4421/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d709c141e865b9e316ae50970f4a7a44b0dfd8eb [2020-11-28 04:44:32,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:44:32,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:44:32,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:44:32,452 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:44:32,454 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:44:32,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c [2020-11-28 04:44:32,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/data/8ebc1a694/27f5b1464ddf4335abf378bbd7381fc2/FLAGe309fdb22 [2020-11-28 04:44:32,996 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:44:32,997 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/sv-benchmarks/c/recursive-simple/sum_20x0-1.c [2020-11-28 04:44:33,005 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/data/8ebc1a694/27f5b1464ddf4335abf378bbd7381fc2/FLAGe309fdb22 [2020-11-28 04:44:33,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/data/8ebc1a694/27f5b1464ddf4335abf378bbd7381fc2 [2020-11-28 04:44:33,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:44:33,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:44:33,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:33,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:44:33,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:44:33,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ce1a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33, skipping insertion in model container [2020-11-28 04:44:33,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:44:33,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:44:33,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:33,644 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:44:33,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:33,689 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:44:33,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33 WrapperNode [2020-11-28 04:44:33,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:33,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:33,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:44:33,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:44:33,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:33,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:44:33,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:44:33,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:44:33,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33" (1/1) ... [2020-11-28 04:44:33,742 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:44:33,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:44:33,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:44:33,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:44:33,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:44:33,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-11-28 04:44:33,803 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-11-28 04:44:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:44:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:44:34,054 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:34,054 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:44:34,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:34 BoogieIcfgContainer [2020-11-28 04:44:34,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:34,058 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:34,058 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:34,072 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:34,073 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:34" (1/1) ... [2020-11-28 04:44:34,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:34,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:44:34,143 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:44:34,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:44:34,152 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:34,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2020-11-28 04:44:34,592 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-11-28 04:44:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:44:34,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:34,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:44:34,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:34,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2020-11-28 04:44:34,889 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-28 04:44:34,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 04:44:34,890 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:34,965 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-28 04:44:35,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2020-11-28 04:44:35,108 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2020-11-28 04:44:35,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 04:44:35,109 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-28 04:44:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:35,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2020-11-28 04:44:35,394 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2020-11-28 04:44:35,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 04:44:35,396 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-11-28 04:44:35,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:35,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 28 states and 44 transitions. [2020-11-28 04:44:35,675 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2020-11-28 04:44:35,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-28 04:44:35,677 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-11-28 04:44:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:36,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 53 transitions. [2020-11-28 04:44:36,013 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2020-11-28 04:44:36,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-11-28 04:44:36,015 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-11-28 04:44:36,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:36,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 34 states and 63 transitions. [2020-11-28 04:44:36,401 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2020-11-28 04:44:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 04:44:36,404 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:36,543 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-11-28 04:44:36,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:36,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 37 states and 74 transitions. [2020-11-28 04:44:36,764 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2020-11-28 04:44:36,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-28 04:44:36,767 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-11-28 04:44:37,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:37,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 40 states and 86 transitions. [2020-11-28 04:44:37,127 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 86 transitions. [2020-11-28 04:44:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-11-28 04:44:37,130 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:37,210 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-11-28 04:44:37,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:37,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 43 states and 99 transitions. [2020-11-28 04:44:37,454 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 99 transitions. [2020-11-28 04:44:37,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-28 04:44:37,456 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:37,581 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-11-28 04:44:37,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:37,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 46 states and 113 transitions. [2020-11-28 04:44:37,842 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 113 transitions. [2020-11-28 04:44:37,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-11-28 04:44:37,844 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-11-28 04:44:38,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:38,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 49 states and 128 transitions. [2020-11-28 04:44:38,237 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 128 transitions. [2020-11-28 04:44:38,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-11-28 04:44:38,245 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:38,331 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-11-28 04:44:38,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:38,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 52 states and 144 transitions. [2020-11-28 04:44:38,639 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 144 transitions. [2020-11-28 04:44:38,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-11-28 04:44:38,641 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:38,754 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-11-28 04:44:39,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:39,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 55 states and 161 transitions. [2020-11-28 04:44:39,058 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 161 transitions. [2020-11-28 04:44:39,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-11-28 04:44:39,060 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:39,165 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-11-28 04:44:39,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:39,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 58 states and 179 transitions. [2020-11-28 04:44:39,521 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 179 transitions. [2020-11-28 04:44:39,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-11-28 04:44:39,523 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-11-28 04:44:39,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:39,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 61 states and 198 transitions. [2020-11-28 04:44:39,997 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 198 transitions. [2020-11-28 04:44:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-28 04:44:39,999 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-11-28 04:44:40,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 64 states and 218 transitions. [2020-11-28 04:44:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 218 transitions. [2020-11-28 04:44:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-11-28 04:44:40,488 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:40,663 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-11-28 04:44:41,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:41,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 67 states and 239 transitions. [2020-11-28 04:44:41,084 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 239 transitions. [2020-11-28 04:44:41,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-11-28 04:44:41,085 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:41,237 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-11-28 04:44:41,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:41,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 70 states and 261 transitions. [2020-11-28 04:44:41,696 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 261 transitions. [2020-11-28 04:44:41,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-11-28 04:44:41,698 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:41,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-11-28 04:44:42,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:42,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 73 states and 284 transitions. [2020-11-28 04:44:42,361 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 284 transitions. [2020-11-28 04:44:42,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-11-28 04:44:42,363 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:42,417 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:42,474 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:42,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:42,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:42,786 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations. [2020-11-28 04:44:42,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:42 ImpRootNode [2020-11-28 04:44:42,963 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:42,964 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:42,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:42,968 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:42,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:34" (3/4) ... [2020-11-28 04:44:42,970 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:44:43,121 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7fca4ffa-8920-4022-8359-1c4e573e4421/bin/ukojak/witness.graphml [2020-11-28 04:44:43,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:43,124 INFO L168 Benchmark]: Toolchain (without parser) took 9726.03 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 71.3 MB in the beginning and 55.4 MB in the end (delta: 15.9 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:43,125 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 109.1 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:43,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.22 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 84.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:43,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.33 ms. Allocated memory is still 109.1 MB. Free memory was 84.7 MB in the beginning and 83.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:43,130 INFO L168 Benchmark]: Boogie Preprocessor took 16.50 ms. Allocated memory is still 109.1 MB. Free memory was 83.4 MB in the beginning and 82.5 MB in the end (delta: 915.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:43,130 INFO L168 Benchmark]: RCFGBuilder took 314.06 ms. Allocated memory is still 109.1 MB. Free memory was 82.5 MB in the beginning and 70.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:43,131 INFO L168 Benchmark]: CodeCheck took 8905.78 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 69.7 MB in the beginning and 61.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:43,131 INFO L168 Benchmark]: Witness Printer took 158.11 ms. Allocated memory is still 132.1 MB. Free memory was 61.7 MB in the beginning and 55.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:43,136 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: UNSAFE, OverallTime: 8.7s, OverallIterations: 21, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7340032 SDtfs, 6815736 SDslu, 11010032 SDs, 0 SdLazy, 31981374 SolverSat, 5767162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20678 GetRequests, 19628 SyntacticMatches, 968 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2298 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1449 NumberOfCodeBlocks, 1449 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1300 ConstructedInterpolants, 0 QuantifiedInterpolants, 282240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3800/7600 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: [L14] int a = 20; [L15] int b = 0; [L16] CALL, EXPR sum(a, b) VAL [\old(m)=0, \old(n)=20] [L6] COND FALSE !(n <= 0) VAL [\old(m)=0, \old(n)=20, m=0, n=20] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=1, \old(n)=19] [L6] COND FALSE !(n <= 0) VAL [\old(m)=1, \old(n)=19, m=1, n=19] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=2, \old(n)=18] [L6] COND FALSE !(n <= 0) VAL [\old(m)=2, \old(n)=18, m=2, n=18] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=3, \old(n)=17] [L6] COND FALSE !(n <= 0) VAL [\old(m)=3, \old(n)=17, m=3, n=17] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=4, \old(n)=16] [L6] COND FALSE !(n <= 0) VAL [\old(m)=4, \old(n)=16, m=4, n=16] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=5, \old(n)=15] [L6] COND FALSE !(n <= 0) VAL [\old(m)=5, \old(n)=15, m=5, n=15] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=6, \old(n)=14] [L6] COND FALSE !(n <= 0) VAL [\old(m)=6, \old(n)=14, m=6, n=14] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=7, \old(n)=13] [L6] COND FALSE !(n <= 0) VAL [\old(m)=7, \old(n)=13, m=7, n=13] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=8, \old(n)=12] [L6] COND FALSE !(n <= 0) VAL [\old(m)=8, \old(n)=12, m=8, n=12] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=9, \old(n)=11] [L6] COND FALSE !(n <= 0) VAL [\old(m)=9, \old(n)=11, m=9, n=11] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=10, \old(n)=10] [L6] COND FALSE !(n <= 0) VAL [\old(m)=10, \old(n)=10, m=10, n=10] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=11, \old(n)=9] [L6] COND FALSE !(n <= 0) VAL [\old(m)=11, \old(n)=9, m=11, n=9] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=12, \old(n)=8] [L6] COND FALSE !(n <= 0) VAL [\old(m)=12, \old(n)=8, m=12, n=8] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=13, \old(n)=7] [L6] COND FALSE !(n <= 0) VAL [\old(m)=13, \old(n)=7, m=13, n=7] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=14, \old(n)=6] [L6] COND FALSE !(n <= 0) VAL [\old(m)=14, \old(n)=6, m=14, n=6] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=15, \old(n)=5] [L6] COND FALSE !(n <= 0) VAL [\old(m)=15, \old(n)=5, m=15, n=5] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=16, \old(n)=4] [L6] COND FALSE !(n <= 0) VAL [\old(m)=16, \old(n)=4, m=16, n=4] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=17, \old(n)=3] [L6] COND FALSE !(n <= 0) VAL [\old(m)=17, \old(n)=3, m=17, n=3] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=18, \old(n)=2] [L6] COND FALSE !(n <= 0) VAL [\old(m)=18, \old(n)=2, m=18, n=2] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=19, \old(n)=1] [L6] COND FALSE !(n <= 0) VAL [\old(m)=19, \old(n)=1, m=19, n=1] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=20, \old(n)=0] [L6] COND TRUE n <= 0 [L7] return m + n; VAL [\old(m)=20, \old(n)=0, \result=20, m=20, n=0] [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=19, \old(n)=1, m=19, n=1, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=18, \old(n)=2, m=18, n=2, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=17, \old(n)=3, m=17, n=3, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=16, \old(n)=4, m=16, n=4, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=15, \old(n)=5, m=15, n=5, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=14, \old(n)=6, m=14, n=6, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=13, \old(n)=7, m=13, n=7, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=12, \old(n)=8, m=12, n=8, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=11, \old(n)=9, m=11, n=9, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=10, \old(n)=10, m=10, n=10, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=9, \old(n)=11, m=9, n=11, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=8, \old(n)=12, m=8, n=12, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=7, \old(n)=13, m=7, n=13, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=6, \old(n)=14, m=6, n=14, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=5, \old(n)=15, m=5, n=15, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=4, \old(n)=16, m=4, n=16, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=3, \old(n)=17, m=3, n=17, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=2, \old(n)=18, m=2, n=18, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=1, \old(n)=19, m=1, n=19, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=0, \old(n)=20, m=0, n=20, sum(n - 1, m + 1)=20] [L9] return sum(n - 1, m + 1); [L16] RET, EXPR sum(a, b) [L16] int result = sum(a, b); [L17] COND TRUE result == a + b [L3] __assert_fail("0", "sum_20x0-1.c", 3, "reach_error") * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 109.1 MB. Free memory is still 87.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.22 ms. Allocated memory is still 109.1 MB. Free memory was 71.1 MB in the beginning and 84.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.33 ms. Allocated memory is still 109.1 MB. Free memory was 84.7 MB in the beginning and 83.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.50 ms. Allocated memory is still 109.1 MB. Free memory was 83.4 MB in the beginning and 82.5 MB in the end (delta: 915.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 314.06 ms. Allocated memory is still 109.1 MB. Free memory was 82.5 MB in the beginning and 70.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 8905.78 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 69.7 MB in the beginning and 61.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * Witness Printer took 158.11 ms. Allocated memory is still 132.1 MB. Free memory was 61.7 MB in the beginning and 55.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...