./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_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/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 [2020-12-01 16:30:46,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:30:46,109 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:30:46,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:30:46,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:30:46,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:30:46,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:30:46,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:30:46,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:30:46,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:30:46,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:30:46,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:30:46,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:30:46,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:30:46,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:30:46,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:30:46,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:30:46,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:30:46,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:30:46,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:30:46,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:30:46,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:30:46,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:30:46,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:30:46,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:30:46,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:30:46,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:30:46,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:30:46,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:30:46,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:30:46,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:30:46,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:30:46,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:30:46,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:30:46,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:30:46,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:30:46,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:30:46,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:30:46,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:30:46,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:30:46,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:30:46,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-12-01 16:30:46,398 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:30:46,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:30:46,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:30:46,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:30:46,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:30:46,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:30:46,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:30:46,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:30:46,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:30:46,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:30:46,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:30:46,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:30:46,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:30:46,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:30:46,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:30:46,405 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:30:46,405 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:30:46,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:30:46,406 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:30:46,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:30:46,407 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:30:46,407 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:30:46,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:30:46,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:30:46,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:30:46,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:30:46,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:30:46,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:30:46,410 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:30:46,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:30:46,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:30:46,411 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_06e2215d-d0ab-407d-9477-71020f464adf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06e263f62ccb25342881e7c795aa9241a1fa8bd0 [2020-12-01 16:30:46,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:30:46,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:30:46,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:30:46,837 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:30:46,838 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:30:46,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/../../sv-benchmarks/c/recursive-simple/id_b5_o10-2.c [2020-12-01 16:30:46,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/data/bd982133a/2e46cde592c34e289d5d17da7db355d3/FLAGb38b5cc8d [2020-12-01 16:30:47,635 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:30:47,636 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/sv-benchmarks/c/recursive-simple/id_b5_o10-2.c [2020-12-01 16:30:47,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/data/bd982133a/2e46cde592c34e289d5d17da7db355d3/FLAGb38b5cc8d [2020-12-01 16:30:47,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/data/bd982133a/2e46cde592c34e289d5d17da7db355d3 [2020-12-01 16:30:47,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:30:47,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:30:47,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:30:47,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:30:48,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:30:48,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:48,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b175caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48, skipping insertion in model container [2020-12-01 16:30:48,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:30:47" (1/1) ... [2020-12-01 16:30:48,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:30:48,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:30:48,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:30:48,297 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:30:48,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:30:48,359 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:30:48,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48 WrapperNode [2020-12-01 16:30:48,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:30:48,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:30:48,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:30:48,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:30:48,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48" (1/1) ... [2020-12-01 16:30:48,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48" (1/1) ... [2020-12-01 16:30:48,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:30:48,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:30:48,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:30:48,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:30:48,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48" (1/1) ... [2020-12-01 16:30:48,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48" (1/1) ... [2020-12-01 16:30:48,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48" (1/1) ... [2020-12-01 16:30:48,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48" (1/1) ... [2020-12-01 16:30:48,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48" (1/1) ... [2020-12-01 16:30:48,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48" (1/1) ... [2020-12-01 16:30:48,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48" (1/1) ... [2020-12-01 16:30:48,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:30:48,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:30:48,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:30:48,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:30:48,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:30:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:30:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:30:48,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:30:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:30:48,631 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-12-01 16:30:48,632 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-12-01 16:30:48,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:30:49,073 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:30:49,074 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 16:30:49,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:30:49 BoogieIcfgContainer [2020-12-01 16:30:49,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:30:49,079 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:30:49,079 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:30:49,097 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:30:49,097 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:30:49" (1/1) ... [2020-12-01 16:30:49,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:30:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:49,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2020-12-01 16:30:49,168 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-12-01 16:30:49,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:30:49,174 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 16:30:49,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2020-12-01 16:30:49,691 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-12-01 16:30:49,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:30:49,692 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:49,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:30:49,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2020-12-01 16:30:49,806 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-12-01 16:30:49,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:30:49,807 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 16:30:50,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2020-12-01 16:30:50,147 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2020-12-01 16:30:50,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:30:50,149 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 16:30:50,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:50,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2020-12-01 16:30:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-12-01 16:30:50,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 16:30:50,495 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:50,662 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 16:30:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:50,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2020-12-01 16:30:50,860 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2020-12-01 16:30:50,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 16:30:50,862 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:51,087 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-01 16:30:51,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:51,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 32 states and 39 transitions. [2020-12-01 16:30:51,357 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-12-01 16:30:51,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-01 16:30:51,360 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:51,502 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-12-01 16:30:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:51,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 37 states and 45 transitions. [2020-12-01 16:30:51,753 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2020-12-01 16:30:51,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-01 16:30:51,756 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:30:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:30:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-12-01 16:30:52,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:30:52,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 37 states and 45 transitions. [2020-12-01 16:30:52,328 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2020-12-01 16:30:52,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:30:52,335 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-12-01 16:30:52,352 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2020-12-01 16:30:52,581 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2020-12-01 16:30:52,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:30:52 ImpRootNode [2020-12-01 16:30:52,625 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:30:52,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:30:52,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:30:52,626 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:30:52,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:30:49" (3/4) ... [2020-12-01 16:30:52,632 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:30:52,654 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-12-01 16:30:52,660 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-01 16:30:52,660 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 16:30:52,661 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:30:52,661 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:30:52,742 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_06e2215d-d0ab-407d-9477-71020f464adf/bin/ukojak/witness.graphml [2020-12-01 16:30:52,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:30:52,745 INFO L168 Benchmark]: Toolchain (without parser) took 4770.09 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 74.3 MB in the beginning and 127.8 MB in the end (delta: -53.5 MB). Peak memory consumption was 655.4 kB. Max. memory is 16.1 GB. [2020-12-01 16:30:52,746 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 100.7 MB. Free memory was 59.9 MB in the beginning and 59.9 MB in the end (delta: 41.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:30:52,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.17 ms. Allocated memory is still 100.7 MB. Free memory was 74.3 MB in the beginning and 79.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:52,749 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.27 ms. Allocated memory is still 100.7 MB. Free memory was 79.5 MB in the beginning and 78.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:30:52,751 INFO L168 Benchmark]: Boogie Preprocessor took 57.04 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 77.4 MB in the end (delta: 715.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:52,752 INFO L168 Benchmark]: RCFGBuilder took 584.85 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 62.0 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:52,754 INFO L168 Benchmark]: CodeCheck took 3546.03 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 62.0 MB in the beginning and 129.9 MB in the end (delta: -67.9 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:52,755 INFO L168 Benchmark]: Witness Printer took 117.11 ms. Allocated memory is still 155.2 MB. Free memory was 129.9 MB in the beginning and 127.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:30:52,763 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: 3.2s, 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, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1276 GetRequests, 1180 SyntacticMatches, 46 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 15834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 214/374 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 0.47 ms. Allocated memory is still 100.7 MB. Free memory was 59.9 MB in the beginning and 59.9 MB in the end (delta: 41.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 372.17 ms. Allocated memory is still 100.7 MB. Free memory was 74.3 MB in the beginning and 79.5 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.27 ms. Allocated memory is still 100.7 MB. Free memory was 79.5 MB in the beginning and 78.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.04 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 77.4 MB in the end (delta: 715.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 584.85 ms. Allocated memory is still 100.7 MB. Free memory was 77.1 MB in the beginning and 62.0 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 3546.03 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 62.0 MB in the beginning and 129.9 MB in the end (delta: -67.9 MB). Peak memory consumption was 51.0 MB. Max. memory is 16.1 GB. * Witness Printer took 117.11 ms. Allocated memory is still 155.2 MB. Free memory was 129.9 MB in the beginning and 127.8 MB in the end (delta: 2.1 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...