./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gj2007b.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_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007b.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/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 d6c7a19e50bb32a5896b861b4b348ab0b4232809 ................................................................................................................................................................................................................................................................. 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 04:43:56,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:56,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:56,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:56,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:56,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:56,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:56,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:56,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:56,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:56,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:56,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:56,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:56,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:56,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:56,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:56,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:56,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:56,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:56,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:56,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:56,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:56,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:56,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:56,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:56,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:56,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:56,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:56,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:56,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:56,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:56,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:56,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:56,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:56,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:56,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:56,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:56,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:56,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:56,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:56,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:56,257 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:43:56,297 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:56,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:56,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:43:56,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:43:56,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:56,300 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:56,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:56,300 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:43:56,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:56,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:43:56,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:56,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:43:56,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:56,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:43:56,303 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:43:56,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:43:56,303 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:56,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:43:56,304 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:56,304 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:56,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:56,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:56,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:56,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:56,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:56,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:43:56,306 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:56,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:56,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:43:56,308 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_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6c7a19e50bb32a5896b861b4b348ab0b4232809 [2020-11-28 04:43:56,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:56,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:56,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:56,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:56,676 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:56,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/../../sv-benchmarks/c/loop-lit/gj2007b.i [2020-11-28 04:43:56,750 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/data/38d0b5a59/4a33038e05834f7983d569dcfdc00d9a/FLAGd4257dd5f [2020-11-28 04:43:57,279 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:57,280 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/sv-benchmarks/c/loop-lit/gj2007b.i [2020-11-28 04:43:57,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/data/38d0b5a59/4a33038e05834f7983d569dcfdc00d9a/FLAGd4257dd5f [2020-11-28 04:43:57,628 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/data/38d0b5a59/4a33038e05834f7983d569dcfdc00d9a [2020-11-28 04:43:57,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:57,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:57,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:57,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:57,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:57,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ccfc5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57, skipping insertion in model container [2020-11-28 04:43:57,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:57,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:57,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:57,874 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:57,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:57,913 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:57,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57 WrapperNode [2020-11-28 04:43:57,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:57,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:57,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:57,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:57,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:57,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:57,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:57,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:57,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57" (1/1) ... [2020-11-28 04:43:57,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:57,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:57,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:57,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:57,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/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 04:43:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:43:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:43:58,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:58,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:43:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-28 04:43:58,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-28 04:43:58,496 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:43:58,497 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:43:58,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:58 BoogieIcfgContainer [2020-11-28 04:43:58,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:43:58,500 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:43:58,500 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:43:58,509 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:43:58,510 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:58" (1/1) ... [2020-11-28 04:43:58,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:43:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:58,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-28 04:43:58,554 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-28 04:43:58,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:43:58,558 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:58,740 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 04:43:58,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:58,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2020-11-28 04:43:58,897 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2020-11-28 04:43:58,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:43:58,899 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:59,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2020-11-28 04:43:59,145 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2020-11-28 04:43:59,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:43:59,147 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:59,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:43:59,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:43:59,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 32 transitions. [2020-11-28 04:43:59,670 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2020-11-28 04:43:59,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:43:59,671 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:43:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:43:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:00,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:00,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 23 transitions. [2020-11-28 04:44:00,034 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-11-28 04:44:00,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:44:00,035 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:00,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:00,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 29 transitions. [2020-11-28 04:44:00,371 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2020-11-28 04:44:00,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:44:00,373 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:00,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:00,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 31 transitions. [2020-11-28 04:44:00,520 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2020-11-28 04:44:00,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:44:00,521 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:00,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:01,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 16 states and 25 transitions. [2020-11-28 04:44:01,203 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 25 transitions. [2020-11-28 04:44:01,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:44:01,204 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-11-28 04:44:01,210 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:44:01,302 INFO L569 CodeCheckObserver]: Invariant with dag size 17 [2020-11-28 04:44:01,323 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:44:01,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:01 ImpRootNode [2020-11-28 04:44:01,325 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:01,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:01,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:01,327 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:01,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:58" (3/4) ... [2020-11-28 04:44:01,334 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:44:01,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-28 04:44:01,353 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 04:44:01,354 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:44:01,354 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:44:01,354 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:44:01,395 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4dbe77ae-6ba7-4747-acd0-a2c809437ca6/bin/ukojak/witness.graphml [2020-11-28 04:44:01,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:01,397 INFO L168 Benchmark]: Toolchain (without parser) took 3764.47 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 75.5 MB in the beginning and 95.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 905.6 kB. Max. memory is 16.1 GB. [2020-11-28 04:44:01,398 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory was 42.5 MB in the beginning and 42.5 MB in the end (delta: 41.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:01,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.16 ms. Allocated memory is still 102.8 MB. Free memory was 75.2 MB in the beginning and 80.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:01,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.46 ms. Allocated memory is still 102.8 MB. Free memory was 80.5 MB in the beginning and 79.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:01,400 INFO L168 Benchmark]: Boogie Preprocessor took 34.31 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 78.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:01,401 INFO L168 Benchmark]: RCFGBuilder took 507.34 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 63.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:01,402 INFO L168 Benchmark]: CodeCheck took 2825.42 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 63.3 MB in the beginning and 98.5 MB in the end (delta: -35.2 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:01,403 INFO L168 Benchmark]: Witness Printer took 69.90 ms. Allocated memory is still 123.7 MB. Free memory was 98.5 MB in the beginning and 95.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:01,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 636 SDtfs, 196 SDslu, 288 SDs, 0 SdLazy, 2476 SolverSat, 1052 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 688 GetRequests, 632 SyntacticMatches, 8 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2038 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 6/20 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: 28]: Loop Invariant Derived loop invariant: ((m == 0 && 1 <= x) || (x == 0 && m == 0)) || ((2 <= x && m + 1 <= n) && 1 <= m) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory was 42.5 MB in the beginning and 42.5 MB in the end (delta: 41.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.16 ms. Allocated memory is still 102.8 MB. Free memory was 75.2 MB in the beginning and 80.5 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.46 ms. Allocated memory is still 102.8 MB. Free memory was 80.5 MB in the beginning and 79.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.31 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 78.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 507.34 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 63.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 2825.42 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 63.3 MB in the beginning and 98.5 MB in the end (delta: -35.2 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * Witness Printer took 69.90 ms. Allocated memory is still 123.7 MB. Free memory was 98.5 MB in the beginning and 95.4 MB in the end (delta: 3.1 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...