./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.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_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/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 d08ec045f3070a7b4be2ee6fb5c0f639f90e227f ......................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:33:48,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:33:48,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:33:48,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:33:48,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:33:48,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:33:48,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:33:48,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:33:48,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:33:48,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:33:48,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:33:48,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:33:48,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:33:48,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:33:48,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:33:48,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:33:48,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:33:48,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:33:48,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:33:48,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:33:48,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:33:48,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:33:48,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:33:48,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:33:48,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:33:48,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:33:48,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:33:48,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:33:48,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:33:48,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:33:48,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:33:48,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:33:48,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:33:48,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:33:48,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:33:48,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:33:48,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:33:48,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:33:48,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:33:48,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:33:48,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:33:48,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:33:48,688 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:33:48,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:33:48,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:33:48,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:33:48,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:33:48,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:33:48,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:33:48,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:33:48,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:33:48,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:33:48,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:33:48,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:33:48,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:33:48,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:33:48,692 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:33:48,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:33:48,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:33:48,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:33:48,693 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:33:48,693 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:33:48,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:33:48,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:33:48,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:33:48,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:33:48,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:33:48,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:33:48,695 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:33:48,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:33:48,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:33:48,700 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_d6a49ba1-e492-48ca-8cab-312b148cc39e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d08ec045f3070a7b4be2ee6fb5c0f639f90e227f [2020-11-28 04:33:49,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:33:49,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:33:49,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:33:49,096 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:33:49,098 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:33:49,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2020-11-28 04:33:49,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/data/eb3946ed7/9bb5df5299204d93b7340def415ed97a/FLAG3bf1d2c58 [2020-11-28 04:33:49,662 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:33:49,662 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2020-11-28 04:33:49,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/data/eb3946ed7/9bb5df5299204d93b7340def415ed97a/FLAG3bf1d2c58 [2020-11-28 04:33:50,052 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/data/eb3946ed7/9bb5df5299204d93b7340def415ed97a [2020-11-28 04:33:50,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:33:50,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:33:50,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:50,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:33:50,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:33:50,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b3f65d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50, skipping insertion in model container [2020-11-28 04:33:50,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:33:50,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:33:50,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:50,270 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:33:50,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:33:50,325 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:33:50,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50 WrapperNode [2020-11-28 04:33:50,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:33:50,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:50,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:33:50,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:33:50,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:33:50,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:33:50,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:33:50,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:33:50,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:33:50,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:33:50,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:33:50,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:33:50,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:33:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/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 04:33:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:33:50,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:33:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-11-28 04:33:50,445 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-11-28 04:33:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:33:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:33:50,697 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:33:50,698 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:33:50,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:50 BoogieIcfgContainer [2020-11-28 04:33:50,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:33:50,701 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:33:50,701 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:33:50,717 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:33:50,717 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:50" (1/1) ... [2020-11-28 04:33:50,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:33:50,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:50,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:33:50,773 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:33:50,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:33:50,778 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:51,325 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 04:33:51,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:51,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2020-11-28 04:33:51,541 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-28 04:33:51,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:33:51,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:51,953 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 04:33:52,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:52,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 16 states and 19 transitions. [2020-11-28 04:33:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2020-11-28 04:33:52,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:33:52,645 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2020-11-28 04:33:52,651 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:33:52,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:33:52 ImpRootNode [2020-11-28 04:33:52,714 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:33:52,715 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:33:52,715 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:33:52,715 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:33:52,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:33:50" (3/4) ... [2020-11-28 04:33:52,719 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:33:52,726 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2020-11-28 04:33:52,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-28 04:33:52,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:33:52,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:33:52,739 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:33:52,792 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d6a49ba1-e492-48ca-8cab-312b148cc39e/bin/ukojak/witness.graphml [2020-11-28 04:33:52,792 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:33:52,794 INFO L168 Benchmark]: Toolchain (without parser) took 2736.81 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 73.7 MB in the beginning and 84.3 MB in the end (delta: -10.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:52,795 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.6 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:52,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.38 ms. Allocated memory is still 100.7 MB. Free memory was 73.2 MB in the beginning and 79.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:52,797 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.35 ms. Allocated memory is still 100.7 MB. Free memory was 79.2 MB in the beginning and 77.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:52,798 INFO L168 Benchmark]: Boogie Preprocessor took 15.59 ms. Allocated memory is still 100.7 MB. Free memory was 77.6 MB in the beginning and 77.0 MB in the end (delta: 624.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:52,799 INFO L168 Benchmark]: RCFGBuilder took 315.40 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 63.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:52,800 INFO L168 Benchmark]: CodeCheck took 2013.59 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 63.4 MB in the beginning and 87.3 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:52,800 INFO L168 Benchmark]: Witness Printer took 77.04 ms. Allocated memory is still 121.6 MB. Free memory was 87.3 MB in the beginning and 84.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:52,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 10 SDslu, 12 SDs, 0 SdLazy, 118 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 168 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 2832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.6 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.38 ms. Allocated memory is still 100.7 MB. Free memory was 73.2 MB in the beginning and 79.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.35 ms. Allocated memory is still 100.7 MB. Free memory was 79.2 MB in the beginning and 77.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.59 ms. Allocated memory is still 100.7 MB. Free memory was 77.6 MB in the beginning and 77.0 MB in the end (delta: 624.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 315.40 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 63.9 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 2013.59 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 63.4 MB in the beginning and 87.3 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 77.04 ms. Allocated memory is still 121.6 MB. Free memory was 87.3 MB in the beginning and 84.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...