./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i --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_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/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 843a3e85c76459ea482367d208e349e6decd95bf ..................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:34:06,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:34:06,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:34:06,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:34:06,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:34:06,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:34:06,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:34:06,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:34:06,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:34:06,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:34:06,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:34:06,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:34:06,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:34:06,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:34:06,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:34:06,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:34:06,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:34:06,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:34:06,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:34:06,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:34:06,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:34:06,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:34:06,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:34:06,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:34:06,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:34:06,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:34:06,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:34:06,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:34:06,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:34:06,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:34:06,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:34:06,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:34:06,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:34:06,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:34:06,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:34:06,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:34:06,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:34:06,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:34:06,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:34:06,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:34:06,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:34:06,467 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:34:06,521 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:34:06,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:34:06,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:34:06,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:34:06,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:34:06,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:34:06,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:34:06,525 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:34:06,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:34:06,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:34:06,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:34:06,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:34:06,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:34:06,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:34:06,529 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:34:06,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:34:06,529 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:34:06,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:34:06,530 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:34:06,530 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:34:06,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:34:06,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:34:06,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:34:06,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:34:06,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:34:06,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:34:06,533 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:34:06,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:34:06,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:34:06,533 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_38d40a6a-c195-42e5-aee6-e41b310d4697/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 843a3e85c76459ea482367d208e349e6decd95bf [2020-11-28 04:34:06,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:34:06,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:34:06,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:34:06,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:34:06,981 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:34:06,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/../../sv-benchmarks/c/loop-zilu/benchmark02_linear.i [2020-11-28 04:34:07,092 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/data/265660966/6bb97a0f42f843e3a4cd1fe06379d12c/FLAGf4d44862b [2020-11-28 04:34:07,540 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:34:07,540 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/sv-benchmarks/c/loop-zilu/benchmark02_linear.i [2020-11-28 04:34:07,555 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/data/265660966/6bb97a0f42f843e3a4cd1fe06379d12c/FLAGf4d44862b [2020-11-28 04:34:07,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/data/265660966/6bb97a0f42f843e3a4cd1fe06379d12c [2020-11-28 04:34:07,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:34:07,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:34:07,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:34:07,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:34:07,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:34:07,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:34:07" (1/1) ... [2020-11-28 04:34:07,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf8fdb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:07, skipping insertion in model container [2020-11-28 04:34:07,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:34:07" (1/1) ... [2020-11-28 04:34:07,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:34:07,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:34:08,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:34:08,157 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:34:08,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:34:08,185 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:34:08,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08 WrapperNode [2020-11-28 04:34:08,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:34:08,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:34:08,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:34:08,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:34:08,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08" (1/1) ... [2020-11-28 04:34:08,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08" (1/1) ... [2020-11-28 04:34:08,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:34:08,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:34:08,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:34:08,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:34:08,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08" (1/1) ... [2020-11-28 04:34:08,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08" (1/1) ... [2020-11-28 04:34:08,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08" (1/1) ... [2020-11-28 04:34:08,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08" (1/1) ... [2020-11-28 04:34:08,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08" (1/1) ... [2020-11-28 04:34:08,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08" (1/1) ... [2020-11-28 04:34:08,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08" (1/1) ... [2020-11-28 04:34:08,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:34:08,289 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:34:08,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:34:08,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:34:08,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:34:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:34:08,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:34:08,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:34:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:34:08,688 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:34:08,689 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:34:08,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:08 BoogieIcfgContainer [2020-11-28 04:34:08,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:34:08,692 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:34:08,692 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:34:08,722 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:34:08,722 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:08" (1/1) ... [2020-11-28 04:34:08,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:34:08,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:08,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 10 states and 13 transitions. [2020-11-28 04:34:08,785 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 13 transitions. [2020-11-28 04:34:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:34:08,788 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:34:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:34:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:34:09,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:34:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2020-11-28 04:34:09,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2020-11-28 04:34:09,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:34:09,071 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2020-11-28 04:34:09,078 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:34:09,102 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:34:09,112 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:34:09,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:34:09 ImpRootNode [2020-11-28 04:34:09,113 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:34:09,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:34:09,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:34:09,114 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:34:09,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:08" (3/4) ... [2020-11-28 04:34:09,118 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:34:09,127 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 04:34:09,128 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:34:09,128 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:34:09,128 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:34:09,170 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_38d40a6a-c195-42e5-aee6-e41b310d4697/bin/ukojak/witness.graphml [2020-11-28 04:34:09,170 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:34:09,172 INFO L168 Benchmark]: Toolchain (without parser) took 1265.45 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.8 MB in the beginning and 47.7 MB in the end (delta: 6.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:09,173 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory is still 43.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:34:09,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.31 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.6 MB in the beginning and 82.3 MB in the end (delta: -28.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:09,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.47 ms. Allocated memory is still 104.9 MB. Free memory was 82.3 MB in the beginning and 80.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:09,175 INFO L168 Benchmark]: Boogie Preprocessor took 54.80 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 79.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:34:09,176 INFO L168 Benchmark]: RCFGBuilder took 401.96 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 66.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:09,177 INFO L168 Benchmark]: CodeCheck took 421.31 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 49.8 MB in the end (delta: 16.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:09,177 INFO L168 Benchmark]: Witness Printer took 56.17 ms. Allocated memory is still 104.9 MB. Free memory was 49.8 MB in the beginning and 47.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:34:09,181 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, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 2 SDslu, 2 SDs, 0 SdLazy, 7 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 11]: 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: 25]: Loop Invariant Derived loop invariant: 1 <= l - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory is still 43.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.31 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.6 MB in the beginning and 82.3 MB in the end (delta: -28.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.47 ms. Allocated memory is still 104.9 MB. Free memory was 82.3 MB in the beginning and 80.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.80 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 79.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 401.96 ms. Allocated memory is still 104.9 MB. Free memory was 79.7 MB in the beginning and 66.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 421.31 ms. Allocated memory is still 104.9 MB. Free memory was 66.0 MB in the beginning and 49.8 MB in the end (delta: 16.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 56.17 ms. Allocated memory is still 104.9 MB. Free memory was 49.8 MB in the beginning and 47.7 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...