./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/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 3a7cdc2671d7dcfcceedceb0ed408847d70d2b4e ............................................................................................................................................................................................................................................................... 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 17:07:38,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:07:38,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:07:38,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:07:38,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:07:38,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:07:38,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:07:38,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:07:38,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:07:38,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:07:38,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:07:38,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:07:38,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:07:38,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:07:38,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:07:38,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:07:38,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:07:38,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:07:38,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:07:38,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:07:38,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:07:38,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:07:38,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:07:38,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:07:38,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:07:38,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:07:38,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:07:38,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:07:38,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:07:38,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:07:38,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:07:38,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:07:38,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:07:38,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:07:38,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:07:38,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:07:38,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:07:38,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:07:38,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:07:38,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:07:38,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:07:38,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 17:07:38,493 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:07:38,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:07:38,509 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:07:38,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:07:38,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:07:38,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:07:38,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:07:38,512 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:07:38,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:07:38,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:07:38,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:07:38,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:07:38,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:07:38,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:07:38,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:07:38,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:07:38,516 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:07:38,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:07:38,516 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:07:38,517 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:07:38,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:07:38,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:07:38,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:07:38,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:07:38,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:07:38,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:07:38,519 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:07:38,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:07:38,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:07:38,520 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_89a2f193-a626-4048-b0e4-bc5e0e382c73/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a7cdc2671d7dcfcceedceb0ed408847d70d2b4e [2020-12-01 17:07:38,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:07:38,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:07:38,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:07:38,862 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:07:38,863 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:07:38,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/../../sv-benchmarks/c/loop-acceleration/diamond_2-2.c [2020-12-01 17:07:38,972 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/data/9f6de7ee2/c7329f650d394c42bdafa4682af42581/FLAG85c3054ee [2020-12-01 17:07:39,531 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:07:39,531 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/sv-benchmarks/c/loop-acceleration/diamond_2-2.c [2020-12-01 17:07:39,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/data/9f6de7ee2/c7329f650d394c42bdafa4682af42581/FLAG85c3054ee [2020-12-01 17:07:39,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/data/9f6de7ee2/c7329f650d394c42bdafa4682af42581 [2020-12-01 17:07:39,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:07:39,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:07:39,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:07:39,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:07:39,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:07:39,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:07:39" (1/1) ... [2020-12-01 17:07:39,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b22c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:39, skipping insertion in model container [2020-12-01 17:07:39,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:07:39" (1/1) ... [2020-12-01 17:07:39,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:07:39,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:07:40,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:07:40,141 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:07:40,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:07:40,223 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:07:40,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40 WrapperNode [2020-12-01 17:07:40,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:07:40,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:07:40,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:07:40,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:07:40,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40" (1/1) ... [2020-12-01 17:07:40,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40" (1/1) ... [2020-12-01 17:07:40,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:07:40,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:07:40,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:07:40,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:07:40,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40" (1/1) ... [2020-12-01 17:07:40,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40" (1/1) ... [2020-12-01 17:07:40,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40" (1/1) ... [2020-12-01 17:07:40,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40" (1/1) ... [2020-12-01 17:07:40,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40" (1/1) ... [2020-12-01 17:07:40,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40" (1/1) ... [2020-12-01 17:07:40,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40" (1/1) ... [2020-12-01 17:07:40,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:07:40,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:07:40,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:07:40,319 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:07:40,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:07:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/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 17:07:40,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:07:40,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:07:40,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:07:40,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:07:41,161 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:07:41,162 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 17:07:41,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:07:41 BoogieIcfgContainer [2020-12-01 17:07:41,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:07:41,166 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:07:41,167 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:07:41,207 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:07:41,208 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:07:41" (1/1) ... [2020-12-01 17:07:41,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:07:41,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:07:41,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2020-12-01 17:07:41,284 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2020-12-01 17:07:41,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:07:41,287 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:07:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:07:41,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:07:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:07:41,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-12-01 17:07:41,501 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-12-01 17:07:41,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:07:41,502 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:07:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:07:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:07:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:07:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2020-12-01 17:07:42,031 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2020-12-01 17:07:42,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:07:42,034 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:07:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:07:42,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:07:43,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:07:43,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2020-12-01 17:07:43,009 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2020-12-01 17:07:43,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:07:43,010 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:07:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:07:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:07:43,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:07:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 14 states and 25 transitions. [2020-12-01 17:07:43,760 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 25 transitions. [2020-12-01 17:07:43,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:07:43,760 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:07:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:07:44,096 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:07:44,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:07:44,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 16 states and 29 transitions. [2020-12-01 17:07:44,633 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 29 transitions. [2020-12-01 17:07:44,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:07:44,634 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:07:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:07:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:07:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:07:45,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 18 states and 34 transitions. [2020-12-01 17:07:45,646 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 34 transitions. [2020-12-01 17:07:45,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 17:07:45,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:07:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:07:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:07:46,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:07:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-01 17:07:46,351 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-01 17:07:46,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:07:46,352 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-12-01 17:07:46,362 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 17:07:46,447 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:07:46,451 INFO L569 CodeCheckObserver]: Invariant with dag size 53 [2020-12-01 17:07:46,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:07:46 ImpRootNode [2020-12-01 17:07:46,462 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:07:46,463 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:07:46,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:07:46,464 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:07:46,464 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:07:41" (3/4) ... [2020-12-01 17:07:46,468 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:07:46,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-01 17:07:46,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-01 17:07:46,480 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:07:46,480 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:07:46,544 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_89a2f193-a626-4048-b0e4-bc5e0e382c73/bin/ukojak/witness.graphml [2020-12-01 17:07:46,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:07:46,546 INFO L168 Benchmark]: Toolchain (without parser) took 6643.39 ms. Allocated memory was 115.3 MB in the beginning and 174.1 MB in the end (delta: 58.7 MB). Free memory was 88.8 MB in the beginning and 69.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 76.9 MB. Max. memory is 16.1 GB. [2020-12-01 17:07:46,547 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 115.3 MB. Free memory is still 73.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:07:46,548 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.13 ms. Allocated memory is still 115.3 MB. Free memory was 88.6 MB in the beginning and 91.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:07:46,549 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.58 ms. Allocated memory is still 115.3 MB. Free memory was 91.6 MB in the beginning and 90.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:07:46,549 INFO L168 Benchmark]: Boogie Preprocessor took 29.40 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 88.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:07:46,550 INFO L168 Benchmark]: RCFGBuilder took 846.17 ms. Allocated memory is still 115.3 MB. Free memory was 88.8 MB in the beginning and 57.3 MB in the end (delta: 31.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:07:46,551 INFO L168 Benchmark]: CodeCheck took 5296.26 ms. Allocated memory was 115.3 MB in the beginning and 174.1 MB in the end (delta: 58.7 MB). Free memory was 57.3 MB in the beginning and 73.0 MB in the end (delta: -15.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:07:46,552 INFO L168 Benchmark]: Witness Printer took 81.01 ms. Allocated memory is still 174.1 MB. Free memory was 73.0 MB in the beginning and 69.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:07:46,557 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 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 192 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 2282 SolverSat, 1198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 434 GetRequests, 366 SyntacticMatches, 14 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1179 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 3416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 6/56 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: 3]: 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 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((((((0 < x / 4294967296 + 1 && x <= 20) || (x + 5 <= 0 && 2 * (y / 2) + x < 2 * (x / 2) + y + 1)) && ((0 <= x + 5 && x / 4294967296 + 1 <= 0) || (y == 2 * (y / 2) && 20 <= x))) || ((y == 2 * (y / 2) && x <= 60) && 60 <= x)) || (((2 * (y / 2) + x < 2 * (x / 2) + y + 1 && 49 < x / 2) && x / 4294967296 <= 0) && 2 * (x / 2) + y <= 2 * (y / 2) + x)) || x == 0) || ((y == 2 * (y / 2) && 80 <= x) && 2 * (y / 2) + x <= y + 80)) || ((y == 2 * (y / 2) && x <= 40) && 40 <= x) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 115.3 MB. Free memory is still 73.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.13 ms. Allocated memory is still 115.3 MB. Free memory was 88.6 MB in the beginning and 91.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.58 ms. Allocated memory is still 115.3 MB. Free memory was 91.6 MB in the beginning and 90.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.40 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 88.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 846.17 ms. Allocated memory is still 115.3 MB. Free memory was 88.8 MB in the beginning and 57.3 MB in the end (delta: 31.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * CodeCheck took 5296.26 ms. Allocated memory was 115.3 MB in the beginning and 174.1 MB in the end (delta: 58.7 MB). Free memory was 57.3 MB in the beginning and 73.0 MB in the end (delta: -15.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. * Witness Printer took 81.01 ms. Allocated memory is still 174.1 MB. Free memory was 73.0 MB in the beginning and 69.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...