./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/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 27bb8f686f653bdbe880104ff392667919def88e .......................................................................................................................................................................................................................................... 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 04:32:53,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:32:53,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:32:53,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:32:53,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:32:53,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:32:53,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:32:53,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:32:53,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:32:53,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:32:53,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:32:53,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:32:53,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:32:53,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:32:53,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:32:53,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:32:53,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:32:53,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:32:53,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:32:53,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:32:53,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:32:53,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:32:53,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:32:53,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:32:53,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:32:53,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:32:53,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:32:53,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:32:53,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:32:53,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:32:53,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:32:53,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:32:53,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:32:53,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:32:53,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:32:53,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:32:53,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:32:53,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:32:53,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:32:53,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:32:53,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:32:53,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:32:54,030 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:32:54,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:32:54,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:32:54,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:32:54,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:32:54,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:32:54,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:32:54,033 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:32:54,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:32:54,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:32:54,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:32:54,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:32:54,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:32:54,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:32:54,036 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:32:54,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:32:54,036 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:32:54,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:32:54,036 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:32:54,037 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:32:54,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:32:54,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:32:54,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:54,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:32:54,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:32:54,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:32:54,038 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:32:54,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:32:54,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:32:54,040 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_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27bb8f686f653bdbe880104ff392667919def88e [2020-11-28 04:32:54,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:32:54,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:32:54,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:32:54,378 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:32:54,379 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:32:54,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/../../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2020-11-28 04:32:54,453 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/data/9bb073163/228138a680ae4d098d55bad99bf9ecb9/FLAGfa6b5a466 [2020-11-28 04:32:54,868 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:32:54,868 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2020-11-28 04:32:54,877 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/data/9bb073163/228138a680ae4d098d55bad99bf9ecb9/FLAGfa6b5a466 [2020-11-28 04:32:55,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/data/9bb073163/228138a680ae4d098d55bad99bf9ecb9 [2020-11-28 04:32:55,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:32:55,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:32:55,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:55,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:32:55,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:32:55,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64dc4382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55, skipping insertion in model container [2020-11-28 04:32:55,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:32:55,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:32:55,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:55,547 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:32:55,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:55,574 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:32:55,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55 WrapperNode [2020-11-28 04:32:55,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:55,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:55,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:32:55,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:32:55,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:55,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:32:55,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:32:55,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:32:55,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:55,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:32:55,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:32:55,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:32:55,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:32:55,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/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 04:32:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:32:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:32:55,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:32:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:32:55,973 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:32:55,973 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:32:55,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:55 BoogieIcfgContainer [2020-11-28 04:32:55,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:32:55,976 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:32:55,976 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:32:55,986 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:32:55,987 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:55" (1/1) ... [2020-11-28 04:32:56,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:32:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2020-11-28 04:32:56,047 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2020-11-28 04:32:56,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:32:56,049 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:56,171 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 04:32:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:56,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 10 states and 14 transitions. [2020-11-28 04:32:56,256 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2020-11-28 04:32:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:32:56,257 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:56,347 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 04:32:56,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:56,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2020-11-28 04:32:56,570 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2020-11-28 04:32:56,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:32:56,572 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:56,670 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 04:32:56,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:56,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 13 states and 19 transitions. [2020-11-28 04:32:56,851 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 19 transitions. [2020-11-28 04:32:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:32:56,851 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:32:57,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:57,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 10 states and 16 transitions. [2020-11-28 04:32:57,099 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 16 transitions. [2020-11-28 04:32:57,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:32:57,100 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2020-11-28 04:32:57,105 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:32:57,139 INFO L569 CodeCheckObserver]: Invariant with dag size 14 [2020-11-28 04:32:57,149 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:32:57,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:32:57 ImpRootNode [2020-11-28 04:32:57,150 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:32:57,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:32:57,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:32:57,151 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:32:57,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:55" (3/4) ... [2020-11-28 04:32:57,154 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:32:57,163 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-28 04:32:57,163 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:32:57,164 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:32:57,164 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:32:57,201 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_42ed66e7-3370-41f6-b6a0-7b4c98e484ac/bin/ukojak/witness.graphml [2020-11-28 04:32:57,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:32:57,203 INFO L168 Benchmark]: Toolchain (without parser) took 1945.33 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 55.5 MB in the beginning and 65.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:57,204 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:57,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.15 ms. Allocated memory is still 88.1 MB. Free memory was 55.3 MB in the beginning and 66.3 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:57,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.07 ms. Allocated memory is still 88.1 MB. Free memory was 66.3 MB in the beginning and 65.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:57,206 INFO L168 Benchmark]: Boogie Preprocessor took 18.16 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 64.1 MB in the end (delta: 852.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:57,207 INFO L168 Benchmark]: RCFGBuilder took 348.97 ms. Allocated memory is still 88.1 MB. Free memory was 63.7 MB in the beginning and 50.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:57,208 INFO L168 Benchmark]: CodeCheck took 1174.32 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.8 MB in the beginning and 67.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:57,208 INFO L168 Benchmark]: Witness Printer took 50.65 ms. Allocated memory is still 107.0 MB. Free memory was 67.3 MB in the beginning and 65.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:57,212 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: 1.0s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 88 SDtfs, 32 SDslu, 32 SDs, 0 SdLazy, 208 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 221 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 579 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 6/10 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: 4]: 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: 30]: Loop Invariant Derived loop invariant: (main__x + 50 <= 0 || main__x + 53 <= 2 * main__y) || main__x + 2 <= main__y - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 88.1 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.15 ms. Allocated memory is still 88.1 MB. Free memory was 55.3 MB in the beginning and 66.3 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.07 ms. Allocated memory is still 88.1 MB. Free memory was 66.3 MB in the beginning and 65.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.16 ms. Allocated memory is still 88.1 MB. Free memory was 65.0 MB in the beginning and 64.1 MB in the end (delta: 852.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 348.97 ms. Allocated memory is still 88.1 MB. Free memory was 63.7 MB in the beginning and 50.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 1174.32 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.8 MB in the beginning and 67.9 MB in the end (delta: -17.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Witness Printer took 50.65 ms. Allocated memory is still 107.0 MB. Free memory was 67.3 MB in the beginning and 65.2 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...