./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 06e263f62ccb25342881e7c795aa9241a1fa8bd0 ....................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-03 11:04:29,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 11:04:29,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 11:04:29,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 11:04:29,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 11:04:29,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 11:04:29,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 11:04:29,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 11:04:29,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 11:04:29,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 11:04:29,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 11:04:29,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 11:04:29,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 11:04:29,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 11:04:29,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 11:04:29,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 11:04:29,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 11:04:29,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 11:04:29,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 11:04:29,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 11:04:29,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 11:04:29,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 11:04:29,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 11:04:29,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 11:04:29,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 11:04:29,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 11:04:29,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 11:04:29,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 11:04:29,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 11:04:29,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 11:04:29,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 11:04:29,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 11:04:29,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 11:04:29,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 11:04:29,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 11:04:29,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 11:04:29,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 11:04:29,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 11:04:29,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 11:04:29,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 11:04:29,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 11:04:29,809 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-12-03 11:04:29,832 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 11:04:29,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 11:04:29,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 11:04:29,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 11:04:29,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 11:04:29,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 11:04:29,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 11:04:29,835 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 11:04:29,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 11:04:29,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 11:04:29,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 11:04:29,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 11:04:29,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 11:04:29,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 11:04:29,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 11:04:29,837 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 11:04:29,837 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 11:04:29,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 11:04:29,838 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 11:04:29,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 11:04:29,838 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 11:04:29,838 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 11:04:29,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 11:04:29,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 11:04:29,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:04:29,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 11:04:29,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 11:04:29,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 11:04:29,840 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 11:04:29,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 11:04:29,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 11:04:29,841 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_95953a9f-6afb-4897-b4c2-8601bc1cd235/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06e263f62ccb25342881e7c795aa9241a1fa8bd0 [2020-12-03 11:04:30,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 11:04:30,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 11:04:30,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 11:04:30,112 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 11:04:30,113 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 11:04:30,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c [2020-12-03 11:04:30,183 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/data/fd7911326/b18b39170c78419b96e82b0636b74de1/FLAG6939e5ae8 [2020-12-03 11:04:30,700 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 11:04:30,701 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/sv-benchmarks/c/recursive-simple/id_b5_o10-2.c [2020-12-03 11:04:30,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/data/fd7911326/b18b39170c78419b96e82b0636b74de1/FLAG6939e5ae8 [2020-12-03 11:04:31,104 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/data/fd7911326/b18b39170c78419b96e82b0636b74de1 [2020-12-03 11:04:31,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:04:31,108 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:04:31,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:04:31,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:04:31,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:04:31,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c7995e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31, skipping insertion in model container [2020-12-03 11:04:31,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:04:31,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:04:31,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:04:31,318 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:04:31,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:04:31,359 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:04:31,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31 WrapperNode [2020-12-03 11:04:31,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:04:31,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:04:31,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:04:31,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:04:31,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:04:31,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:04:31,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:04:31,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:04:31,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:04:31,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:04:31,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:04:31,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:04:31,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:04:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:04:31,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:04:31,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:04:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 11:04:31,522 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-12-03 11:04:31,523 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-12-03 11:04:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 11:04:31,840 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:04:31,840 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-03 11:04:31,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:04:31 BoogieIcfgContainer [2020-12-03 11:04:31,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:04:31,844 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:04:31,844 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:04:31,854 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:04:31,854 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:04:31" (1/1) ... [2020-12-03 11:04:31,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:04:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:31,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2020-12-03 11:04:31,896 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-12-03 11:04:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 11:04:31,900 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:32,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 11:04:32,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:32,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2020-12-03 11:04:32,130 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-12-03 11:04:32,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 11:04:32,130 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:32,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-03 11:04:32,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:32,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2020-12-03 11:04:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-12-03 11:04:32,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-03 11:04:32,234 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-03 11:04:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:32,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2020-12-03 11:04:32,568 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-12-03 11:04:32,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-03 11:04:32,571 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-12-03 11:04:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:32,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2020-12-03 11:04:32,839 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-12-03 11:04:32,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-03 11:04:32,842 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-03 11:04:33,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:33,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2020-12-03 11:04:33,180 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2020-12-03 11:04:33,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-03 11:04:33,182 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:33,300 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-03 11:04:33,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:33,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 32 states and 39 transitions. [2020-12-03 11:04:33,495 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-12-03 11:04:33,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-03 11:04:33,501 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-03 11:04:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:33,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 37 states and 45 transitions. [2020-12-03 11:04:33,856 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2020-12-03 11:04:33,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-03 11:04:33,865 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:04:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:04:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-12-03 11:04:34,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:04:34,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 37 states and 45 transitions. [2020-12-03 11:04:34,255 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2020-12-03 11:04:34,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 11:04:34,256 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-12-03 11:04:34,263 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2020-12-03 11:04:34,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:04:34 ImpRootNode [2020-12-03 11:04:34,412 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:04:34,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:04:34,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:04:34,413 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:04:34,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:04:31" (3/4) ... [2020-12-03 11:04:34,418 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 11:04:34,424 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-12-03 11:04:34,431 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-03 11:04:34,432 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-03 11:04:34,432 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-03 11:04:34,432 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 11:04:34,485 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_95953a9f-6afb-4897-b4c2-8601bc1cd235/bin/ukojak/witness.graphml [2020-12-03 11:04:34,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:04:34,488 INFO L168 Benchmark]: Toolchain (without parser) took 3378.53 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 81.8 MB in the beginning and 53.0 MB in the end (delta: 28.7 MB). Peak memory consumption was 59.7 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:34,488 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 71.3 MB. Free memory is still 38.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:04:34,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.27 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 72.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:34,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.87 ms. Allocated memory is still 107.0 MB. Free memory was 72.5 MB in the beginning and 71.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:34,490 INFO L168 Benchmark]: Boogie Preprocessor took 19.61 ms. Allocated memory is still 107.0 MB. Free memory was 71.2 MB in the beginning and 70.3 MB in the end (delta: 919.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:04:34,490 INFO L168 Benchmark]: RCFGBuilder took 427.61 ms. Allocated memory is still 107.0 MB. Free memory was 70.2 MB in the beginning and 54.9 MB in the end (delta: 15.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:34,491 INFO L168 Benchmark]: CodeCheck took 2568.60 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 54.8 MB in the beginning and 56.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:34,492 INFO L168 Benchmark]: Witness Printer took 72.84 ms. Allocated memory is still 136.3 MB. Free memory was 56.1 MB in the beginning and 53.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:04:34,495 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, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1980 SDtfs, 1300 SDslu, 632 SDs, 0 SdLazy, 4094 SolverSat, 1334 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1270 GetRequests, 1174 SyntacticMatches, 46 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 15234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 189/349 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 71.3 MB. Free memory is still 38.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.27 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 72.6 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.87 ms. Allocated memory is still 107.0 MB. Free memory was 72.5 MB in the beginning and 71.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.61 ms. Allocated memory is still 107.0 MB. Free memory was 71.2 MB in the beginning and 70.3 MB in the end (delta: 919.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 427.61 ms. Allocated memory is still 107.0 MB. Free memory was 70.2 MB in the beginning and 54.9 MB in the end (delta: 15.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 2568.60 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 54.8 MB in the beginning and 56.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. * Witness Printer took 72.84 ms. Allocated memory is still 136.3 MB. Free memory was 56.1 MB in the beginning and 53.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...