./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/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 88d908807c562516d59e3074a7f6cea9889fd89a ......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:18:26,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:18:26,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:18:26,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:18:26,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:18:26,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:18:26,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:18:26,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:18:26,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:18:26,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:18:26,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:18:26,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:18:26,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:18:26,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:18:26,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:18:26,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:18:26,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:18:26,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:18:26,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:18:26,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:18:26,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:18:26,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:18:26,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:18:26,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:18:26,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:18:26,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:18:26,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:18:26,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:18:26,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:18:26,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:18:26,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:18:26,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:18:26,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:18:26,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:18:26,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:18:26,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:18:26,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:18:26,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:18:26,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:18:26,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:18:26,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:18:26,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-29 22:18:26,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:18:26,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:18:26,404 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 22:18:26,404 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 22:18:26,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:18:26,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:18:26,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:18:26,406 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:18:26,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:18:26,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:18:26,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:18:26,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:18:26,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:18:26,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:18:26,408 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:18:26,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:18:26,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:18:26,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:18:26,409 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 22:18:26,409 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 22:18:26,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:18:26,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:18:26,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 22:18:26,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:18:26,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:18:26,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:18:26,411 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 22:18:26,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:18:26,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:18:26,412 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_2e8348db-3f42-4c53-8822-120cd73e6195/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d908807c562516d59e3074a7f6cea9889fd89a [2020-11-29 22:18:26,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:18:26,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:18:26,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:18:26,776 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:18:26,777 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:18:26,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/../../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2020-11-29 22:18:26,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/data/d2aa616f3/dfd279aa12b648ffa2d792fd4b53e75f/FLAGf1d917106 [2020-11-29 22:18:27,618 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:18:27,619 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2020-11-29 22:18:27,634 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/data/d2aa616f3/dfd279aa12b648ffa2d792fd4b53e75f/FLAGf1d917106 [2020-11-29 22:18:27,961 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/data/d2aa616f3/dfd279aa12b648ffa2d792fd4b53e75f [2020-11-29 22:18:27,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:18:27,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:18:27,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:18:27,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:18:27,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:18:27,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:18:27" (1/1) ... [2020-11-29 22:18:27,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6744439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:27, skipping insertion in model container [2020-11-29 22:18:27,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:18:27" (1/1) ... [2020-11-29 22:18:27,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:18:28,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:18:28,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:18:28,268 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:18:28,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:18:28,329 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:18:28,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28 WrapperNode [2020-11-29 22:18:28,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:18:28,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:18:28,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:18:28,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:18:28,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28" (1/1) ... [2020-11-29 22:18:28,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28" (1/1) ... [2020-11-29 22:18:28,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:18:28,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:18:28,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:18:28,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:18:28,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28" (1/1) ... [2020-11-29 22:18:28,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28" (1/1) ... [2020-11-29 22:18:28,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28" (1/1) ... [2020-11-29 22:18:28,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28" (1/1) ... [2020-11-29 22:18:28,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28" (1/1) ... [2020-11-29 22:18:28,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28" (1/1) ... [2020-11-29 22:18:28,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28" (1/1) ... [2020-11-29 22:18:28,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:18:28,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:18:28,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:18:28,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:18:28,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:18:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 22:18:28,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:18:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:18:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:18:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:18:29,263 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:18:29,263 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-29 22:18:29,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:18:29 BoogieIcfgContainer [2020-11-29 22:18:29,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:18:29,267 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 22:18:29,267 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 22:18:29,283 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 22:18:29,283 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:18:29" (1/1) ... [2020-11-29 22:18:29,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:29,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:29,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 11 states and 16 transitions. [2020-11-29 22:18:29,357 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. [2020-11-29 22:18:29,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 22:18:29,359 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:29,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:29,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:29,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2020-11-29 22:18:29,711 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2020-11-29 22:18:29,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 22:18:29,712 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:30,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:30,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 13 states and 17 transitions. [2020-11-29 22:18:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2020-11-29 22:18:30,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:18:30,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:30,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:30,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2020-11-29 22:18:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2020-11-29 22:18:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:18:30,305 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:30,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-11-29 22:18:30,585 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-11-29 22:18:30,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 22:18:30,585 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:30,965 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 7 [2020-11-29 22:18:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2020-11-29 22:18:31,089 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-11-29 22:18:31,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 22:18:31,090 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:31,272 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:31,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:31,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2020-11-29 22:18:31,421 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2020-11-29 22:18:31,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 22:18:31,422 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:31,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:31,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2020-11-29 22:18:31,811 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-11-29 22:18:31,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 22:18:31,812 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:32,058 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:32,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2020-11-29 22:18:32,244 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2020-11-29 22:18:32,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 22:18:32,245 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:32,545 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:32,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:32,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2020-11-29 22:18:32,749 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2020-11-29 22:18:32,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 22:18:32,750 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:33,060 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:33,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:33,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2020-11-29 22:18:33,214 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-11-29 22:18:33,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 22:18:33,215 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:18:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:33,632 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:33,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:18:33,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2020-11-29 22:18:33,934 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-11-29 22:18:33,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:18:33,935 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2020-11-29 22:18:33,943 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-29 22:18:34,165 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-11-29 22:18:34,168 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 22:18:34,172 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 22:18:34,172 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 22:18:34,172 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 22:18:34,172 INFO L569 CodeCheckObserver]: Invariant with dag size 47 [2020-11-29 22:18:34,181 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 22:18:34,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 10:18:34 ImpRootNode [2020-11-29 22:18:34,182 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 22:18:34,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:18:34,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:18:34,183 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:18:34,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:18:29" (3/4) ... [2020-11-29 22:18:34,187 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:18:34,197 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 22:18:34,197 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 22:18:34,197 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 22:18:34,198 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:18:34,256 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2e8348db-3f42-4c53-8822-120cd73e6195/bin/ukojak/witness.graphml [2020-11-29 22:18:34,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:18:34,258 INFO L168 Benchmark]: Toolchain (without parser) took 6291.65 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 97.0 MB in the beginning and 52.7 MB in the end (delta: 44.3 MB). Peak memory consumption was 69.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:34,259 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 83.9 MB. Free memory was 42.1 MB in the beginning and 42.0 MB in the end (delta: 78.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:18:34,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.88 ms. Allocated memory is still 123.7 MB. Free memory was 97.0 MB in the beginning and 101.4 MB in the end (delta: -4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:34,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.59 ms. Allocated memory is still 123.7 MB. Free memory was 101.4 MB in the beginning and 99.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:34,262 INFO L168 Benchmark]: Boogie Preprocessor took 37.54 ms. Allocated memory is still 123.7 MB. Free memory was 99.8 MB in the beginning and 98.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:18:34,263 INFO L168 Benchmark]: RCFGBuilder took 826.15 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 80.2 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:34,264 INFO L168 Benchmark]: CodeCheck took 4914.80 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 80.2 MB in the beginning and 55.8 MB in the end (delta: 24.3 MB). Peak memory consumption was 50.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:34,265 INFO L168 Benchmark]: Witness Printer took 73.79 ms. Allocated memory is still 148.9 MB. Free memory was 55.8 MB in the beginning and 52.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:34,270 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, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 12, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13312 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 12292 SolverSat, 12284 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1060 GetRequests, 926 SyntacticMatches, 90 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1751 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 8116 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/220 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((v <= 5 && 4 < v) || (v <= 8 && 7 < v)) || (v <= 7 && 6 < v)) || (0 < v / 4294967296 + 1 && v <= 1)) || (8 < v && v <= 9)) || (v <= 4 && 3 < v)) || (v <= 6 && 5 < v)) || (1 < v && v <= 2)) || (v / 4 <= 2 && 10 <= v)) || (2 < v && v <= 3) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 83.9 MB. Free memory was 42.1 MB in the beginning and 42.0 MB in the end (delta: 78.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 363.88 ms. Allocated memory is still 123.7 MB. Free memory was 97.0 MB in the beginning and 101.4 MB in the end (delta: -4.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.59 ms. Allocated memory is still 123.7 MB. Free memory was 101.4 MB in the beginning and 99.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.54 ms. Allocated memory is still 123.7 MB. Free memory was 99.8 MB in the beginning and 98.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 826.15 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 80.2 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 4914.80 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 80.2 MB in the beginning and 55.8 MB in the end (delta: 24.3 MB). Peak memory consumption was 50.6 MB. Max. memory is 16.1 GB. * Witness Printer took 73.79 ms. Allocated memory is still 148.9 MB. Free memory was 55.8 MB in the beginning and 52.7 MB in the end (delta: 3.2 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...