./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label17.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_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label17.c -s /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/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 78c0cfafc3b31d20dda21d94520c4ce273f25aaa ............................................................................................................................................................................................................................................................................ 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 18:27:46,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:27:46,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:27:46,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:27:46,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:27:46,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:27:46,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:27:46,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:27:46,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:27:46,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:27:46,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:27:46,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:27:46,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:27:46,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:27:46,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:27:46,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:27:46,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:27:46,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:27:46,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:27:46,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:27:46,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:27:46,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:27:46,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:27:46,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:27:46,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:27:46,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:27:46,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:27:46,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:27:46,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:27:46,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:27:46,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:27:46,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:27:46,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:27:46,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:27:46,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:27:46,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:27:46,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:27:46,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:27:46,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:27:46,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:27:46,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:27:46,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-12-01 18:27:46,483 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:27:46,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:27:46,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 18:27:46,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 18:27:46,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:27:46,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:27:46,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:27:46,487 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:27:46,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:27:46,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:27:46,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:27:46,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 18:27:46,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:27:46,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 18:27:46,491 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:27:46,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 18:27:46,491 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:27:46,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 18:27:46,492 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:27:46,492 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:27:46,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:27:46,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:27:46,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:27:46,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:27:46,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:27:46,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 18:27:46,494 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:27:46,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:27:46,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 18:27:46,497 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_30dcc3df-c8a7-4732-964c-01efd348c580/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78c0cfafc3b31d20dda21d94520c4ce273f25aaa [2020-12-01 18:27:46,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:27:46,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:27:46,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:27:46,903 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:27:46,918 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:27:46,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/../../sv-benchmarks/c/eca-rers2012/Problem11_label17.c [2020-12-01 18:27:47,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/data/3e0670d59/267aee5a52cb4124a730e18e2d4f63af/FLAG6e407c498 [2020-12-01 18:27:47,919 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:27:47,920 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/sv-benchmarks/c/eca-rers2012/Problem11_label17.c [2020-12-01 18:27:47,951 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/data/3e0670d59/267aee5a52cb4124a730e18e2d4f63af/FLAG6e407c498 [2020-12-01 18:27:48,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/data/3e0670d59/267aee5a52cb4124a730e18e2d4f63af [2020-12-01 18:27:48,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:27:48,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:27:48,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:27:48,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:27:48,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:27:48,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:27:48" (1/1) ... [2020-12-01 18:27:48,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0c63e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:48, skipping insertion in model container [2020-12-01 18:27:48,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:27:48" (1/1) ... [2020-12-01 18:27:48,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:27:48,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:27:49,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:27:49,047 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:27:49,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:27:49,281 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:27:49,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49 WrapperNode [2020-12-01 18:27:49,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:27:49,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:27:49,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:27:49,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:27:49,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49" (1/1) ... [2020-12-01 18:27:49,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49" (1/1) ... [2020-12-01 18:27:49,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:27:49,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:27:49,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:27:49,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:27:49,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49" (1/1) ... [2020-12-01 18:27:49,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49" (1/1) ... [2020-12-01 18:27:49,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49" (1/1) ... [2020-12-01 18:27:49,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49" (1/1) ... [2020-12-01 18:27:49,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49" (1/1) ... [2020-12-01 18:27:49,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49" (1/1) ... [2020-12-01 18:27:49,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49" (1/1) ... [2020-12-01 18:27:49,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:27:49,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:27:49,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:27:49,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:27:49,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/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 18:27:49,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:27:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:27:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:27:49,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:28:22,786 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:28:22,787 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 18:28:22,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:28:22 BoogieIcfgContainer [2020-12-01 18:28:22,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:28:22,792 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:28:22,794 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:28:22,810 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:28:22,810 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:28:22" (1/1) ... [2020-12-01 18:28:22,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:28:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:22,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-12-01 18:28:22,896 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-12-01 18:28:22,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:28:22,899 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:23,217 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 18:28:23,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 18:28:23,408 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 18:28:23,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:28:23,409 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:25,269 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 18:28:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:25,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 27 transitions. [2020-12-01 18:28:25,952 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 27 transitions. [2020-12-01 18:28:25,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:28:25,955 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:29,112 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2020-12-01 18:28:29,318 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-12-01 18:28:29,375 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 18:28:30,203 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2020-12-01 18:28:31,813 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2020-12-01 18:28:33,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:33,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 30 states and 54 transitions. [2020-12-01 18:28:33,535 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 54 transitions. [2020-12-01 18:28:33,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:28:33,536 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:28:35,978 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 18:28:36,123 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-01 18:28:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:28:36,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 33 states and 60 transitions. [2020-12-01 18:28:36,667 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 60 transitions. [2020-12-01 18:28:36,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:28:36,668 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:28:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:30:16,784 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 18:30:17,407 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-12-01 18:30:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:30:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 37 states and 69 transitions. [2020-12-01 18:30:18,629 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 69 transitions. [2020-12-01 18:30:18,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:30:18,630 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:30:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:31:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 18:31:46,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:31:46,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 40 states and 72 transitions. [2020-12-01 18:31:46,842 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 72 transitions. [2020-12-01 18:31:46,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:31:46,843 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:31:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:33:12,680 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-01 18:33:13,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:33:13,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 28 states and 53 transitions. [2020-12-01 18:33:13,052 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 53 transitions. [2020-12-01 18:33:13,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:33:13,053 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-12-01 18:33:13,060 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-12-01 18:33:13,258 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 24 [2020-12-01 18:33:13,449 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 25 [2020-12-01 18:33:13,641 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 24 [2020-12-01 18:33:13,794 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 24 [2020-12-01 18:33:13,795 INFO L569 CodeCheckObserver]: Invariant with dag size 25 [2020-12-01 18:33:13,809 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 18:33:13,809 INFO L569 CodeCheckObserver]: Invariant with dag size 24 [2020-12-01 18:33:13,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:33:13 ImpRootNode [2020-12-01 18:33:13,812 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:33:13,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:33:13,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:33:13,813 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:33:13,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:28:22" (3/4) ... [2020-12-01 18:33:13,817 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:33:13,858 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 254 nodes and edges [2020-12-01 18:33:13,862 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2020-12-01 18:33:13,865 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 18:33:13,869 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:33:14,112 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_30dcc3df-c8a7-4732-964c-01efd348c580/bin/ukojak/witness.graphml [2020-12-01 18:33:14,112 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:33:14,113 INFO L168 Benchmark]: Toolchain (without parser) took 326056.92 ms. Allocated memory was 109.1 MB in the beginning and 4.2 GB in the end (delta: 4.1 GB). Free memory was 76.2 MB in the beginning and 1.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.4 GB. Max. memory is 16.1 GB. [2020-12-01 18:33:14,114 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 83.9 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 43.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:33:14,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1221.26 ms. Allocated memory is still 109.1 MB. Free memory was 75.9 MB in the beginning and 53.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 18:33:14,115 INFO L168 Benchmark]: Boogie Procedure Inliner took 264.80 ms. Allocated memory is still 109.1 MB. Free memory was 53.8 MB in the beginning and 77.5 MB in the end (delta: -23.7 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:33:14,116 INFO L168 Benchmark]: Boogie Preprocessor took 288.38 ms. Allocated memory is still 109.1 MB. Free memory was 77.5 MB in the beginning and 69.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:33:14,116 INFO L168 Benchmark]: RCFGBuilder took 32951.62 ms. Allocated memory was 109.1 MB in the beginning and 2.4 GB in the end (delta: 2.3 GB). Free memory was 68.8 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 354.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:33:14,117 INFO L168 Benchmark]: CodeCheck took 291019.71 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 279.0 MB). Peak memory consumption was 2.1 GB. Max. memory is 16.1 GB. [2020-12-01 18:33:14,118 INFO L168 Benchmark]: Witness Printer took 299.41 ms. Allocated memory is still 4.2 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:33:14,120 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, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 290.1s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 828 SDtfs, 1694 SDslu, 1144 SDs, 0 SdLazy, 4812 SolverSat, 622 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 891 GetRequests, 808 SyntacticMatches, 31 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 8.2s SatisfiabilityAnalysisTime, 273.2s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 15968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 36/86 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: 12]: 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: 32]: Loop Invariant Derived loop invariant: ((a8 == 15 && ((!(a25 == 12) || a29 <= 277) || 0 < a23 + 43)) && a3 == 1) || ((a8 == 15 && !(a4 == 1)) && a3 == 1) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (a8 == 15 && ((((a29 <= 277 || 0 <= a23 + 42) || a25 <= 11) || !(a4 == 1)) || 13 <= a25)) && a3 == 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 83.9 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 43.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1221.26 ms. Allocated memory is still 109.1 MB. Free memory was 75.9 MB in the beginning and 53.8 MB in the end (delta: 22.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 264.80 ms. Allocated memory is still 109.1 MB. Free memory was 53.8 MB in the beginning and 77.5 MB in the end (delta: -23.7 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 288.38 ms. Allocated memory is still 109.1 MB. Free memory was 77.5 MB in the beginning and 69.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 32951.62 ms. Allocated memory was 109.1 MB in the beginning and 2.4 GB in the end (delta: 2.3 GB). Free memory was 68.8 MB in the beginning and 2.1 GB in the end (delta: -2.0 GB). Peak memory consumption was 354.7 MB. Max. memory is 16.1 GB. * CodeCheck took 291019.71 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 279.0 MB). Peak memory consumption was 2.1 GB. Max. memory is 16.1 GB. * Witness Printer took 299.41 ms. Allocated memory is still 4.2 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...