./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.c -s /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 ......................................................................................................................................................................................................................................................................................................... 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 04:39:29,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:39:29,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:39:30,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:39:30,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:39:30,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:39:30,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:39:30,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:39:30,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:39:30,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:39:30,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:39:30,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:39:30,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:39:30,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:39:30,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:39:30,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:39:30,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:39:30,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:39:30,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:39:30,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:39:30,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:39:30,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:39:30,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:39:30,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:39:30,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:39:30,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:39:30,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:39:30,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:39:30,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:39:30,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:39:30,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:39:30,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:39:30,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:39:30,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:39:30,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:39:30,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:39:30,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:39:30,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:39:30,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:39:30,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:39:30,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:39:30,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:39:30,202 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:39:30,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:39:30,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:39:30,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:39:30,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:39:30,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:39:30,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:39:30,206 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:39:30,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:39:30,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:39:30,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:39:30,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:39:30,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:39:30,209 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:39:30,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:39:30,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:39:30,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:39:30,210 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:39:30,210 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:39:30,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:39:30,210 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:39:30,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:39:30,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:39:30,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:39:30,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:39:30,212 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:39:30,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:39:30,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:39:30,212 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_60e55fcf-7403-4177-add9-6a1a74b4005a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 [2020-11-28 04:39:30,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:39:30,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:39:30,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:39:30,569 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:39:30,576 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:39:30,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.c [2020-11-28 04:39:30,661 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/data/42a406c41/dcaab076eec849d8a2885353cb2bf512/FLAG3cf08a91c [2020-11-28 04:39:31,255 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:39:31,256 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified.c [2020-11-28 04:39:31,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/data/42a406c41/dcaab076eec849d8a2885353cb2bf512/FLAG3cf08a91c [2020-11-28 04:39:31,602 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/data/42a406c41/dcaab076eec849d8a2885353cb2bf512 [2020-11-28 04:39:31,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:39:31,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:39:31,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:31,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:39:31,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:39:31,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4341cf57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31, skipping insertion in model container [2020-11-28 04:39:31,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:39:31,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:39:31,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:31,790 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:39:31,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:31,824 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:39:31,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31 WrapperNode [2020-11-28 04:39:31,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:31,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:31,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:39:31,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:39:31,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:31,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:39:31,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:39:31,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:39:31,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... [2020-11-28 04:39:31,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:39:31,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:39:31,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:39:31,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:39:31,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/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 04:39:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:39:31,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:39:32,161 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:39:32,161 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:39:32,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:32 BoogieIcfgContainer [2020-11-28 04:39:32,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:39:32,165 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:39:32,165 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:39:32,177 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:39:32,177 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:32" (1/1) ... [2020-11-28 04:39:32,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:39:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:32,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:39:32,222 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:39:32,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:39:32,224 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:32,482 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 3 [2020-11-28 04:39:32,592 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 04:39:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:32,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-11-28 04:39:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-11-28 04:39:32,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:39:32,692 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:32,734 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 04:39:32,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:32,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2020-11-28 04:39:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-11-28 04:39:32,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:39:32,986 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:33,044 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 04:39:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 31 transitions. [2020-11-28 04:39:33,286 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2020-11-28 04:39:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:39:33,287 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:33,359 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 04:39:33,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:33,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2020-11-28 04:39:33,768 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2020-11-28 04:39:33,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:33,769 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:33,796 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 04:39:33,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:33,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2020-11-28 04:39:33,934 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2020-11-28 04:39:33,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:33,935 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:33,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:34,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:39:34,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2020-11-28 04:39:34,426 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2020-11-28 04:39:34,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:34,426 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:34,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2020-11-28 04:39:34,668 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2020-11-28 04:39:34,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:34,669 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:34,701 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 04:39:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:34,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2020-11-28 04:39:34,933 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2020-11-28 04:39:34,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:39:34,934 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:34,952 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 04:39:35,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2020-11-28 04:39:35,198 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2020-11-28 04:39:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:39:35,198 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:35,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:35,221 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 04:39:35,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2020-11-28 04:39:35,319 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-11-28 04:39:35,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:39:35,320 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:35,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:39:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 28 transitions. [2020-11-28 04:39:35,460 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-11-28 04:39:35,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:39:35,461 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:35,636 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:39:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:35,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2020-11-28 04:39:35,947 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-11-28 04:39:35,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:39:35,947 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:35,967 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 04:39:36,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:36,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-11-28 04:39:36,206 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-28 04:39:36,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:39:36,207 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2020-11-28 04:39:36,214 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:39:36,284 INFO L569 CodeCheckObserver]: Invariant with dag size 12 [2020-11-28 04:39:36,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:39:36 ImpRootNode [2020-11-28 04:39:36,295 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:39:36,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:39:36,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:39:36,297 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:39:36,297 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:32" (3/4) ... [2020-11-28 04:39:36,301 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:39:36,310 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:39:36,310 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:39:36,310 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:39:36,357 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_60e55fcf-7403-4177-add9-6a1a74b4005a/bin/ukojak/witness.graphml [2020-11-28 04:39:36,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:39:36,359 INFO L168 Benchmark]: Toolchain (without parser) took 4748.08 ms. Allocated memory was 88.1 MB in the beginning and 138.4 MB in the end (delta: 50.3 MB). Free memory was 63.9 MB in the beginning and 82.1 MB in the end (delta: -18.2 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:36,360 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 73.4 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:36,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.11 ms. Allocated memory is still 88.1 MB. Free memory was 63.5 MB in the beginning and 55.2 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:36,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.75 ms. Allocated memory is still 88.1 MB. Free memory was 55.2 MB in the beginning and 53.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:36,362 INFO L168 Benchmark]: Boogie Preprocessor took 28.12 ms. Allocated memory is still 88.1 MB. Free memory was 53.9 MB in the beginning and 53.0 MB in the end (delta: 884.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:36,363 INFO L168 Benchmark]: RCFGBuilder took 271.91 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 42.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:36,364 INFO L168 Benchmark]: CodeCheck took 4130.87 ms. Allocated memory was 88.1 MB in the beginning and 138.4 MB in the end (delta: 50.3 MB). Free memory was 42.7 MB in the beginning and 84.2 MB in the end (delta: -41.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:36,364 INFO L168 Benchmark]: Witness Printer took 61.22 ms. Allocated memory is still 138.4 MB. Free memory was 84.2 MB in the beginning and 82.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:36,368 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, 12 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 14, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 48270 SDslu, 16384 SDs, 0 SdLazy, 244142 SolverSat, 62076 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 914 GetRequests, 790 SyntacticMatches, 44 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2796 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 2626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 27/33 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 0 <= x + 2147483648) && 0 <= K + 2147483648) && K <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 73.4 MB. Free memory was 43.2 MB in the beginning and 43.2 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 215.11 ms. Allocated memory is still 88.1 MB. Free memory was 63.5 MB in the beginning and 55.2 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.75 ms. Allocated memory is still 88.1 MB. Free memory was 55.2 MB in the beginning and 53.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.12 ms. Allocated memory is still 88.1 MB. Free memory was 53.9 MB in the beginning and 53.0 MB in the end (delta: 884.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 271.91 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 42.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 4130.87 ms. Allocated memory was 88.1 MB in the beginning and 138.4 MB in the end (delta: 50.3 MB). Free memory was 42.7 MB in the beginning and 84.2 MB in the end (delta: -41.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Witness Printer took 61.22 ms. Allocated memory is still 138.4 MB. Free memory was 84.2 MB in the beginning and 82.1 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...