./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/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 e09e2fe0d9f978fd259d1d805e514754ab2def67 .............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:42:20,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:42:20,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:42:20,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:42:20,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:42:20,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:42:20,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:42:20,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:42:20,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:42:20,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:42:20,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:42:20,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:42:20,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:42:20,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:42:20,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:42:20,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:42:20,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:42:21,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:42:21,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:42:21,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:42:21,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:42:21,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:42:21,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:42:21,024 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:42:21,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:42:21,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:42:21,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:42:21,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:42:21,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:42:21,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:42:21,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:42:21,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:42:21,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:42:21,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:42:21,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:42:21,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:42:21,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:42:21,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:42:21,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:42:21,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:42:21,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:42:21,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 17:42:21,089 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:42:21,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:42:21,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:42:21,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:42:21,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:42:21,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:42:21,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:42:21,094 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:42:21,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:42:21,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:42:21,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:42:21,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:42:21,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:42:21,097 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 17:42:21,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:42:21,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:42:21,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:42:21,097 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:42:21,098 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:42:21,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:42:21,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:42:21,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:42:21,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:42:21,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:42:21,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:42:21,099 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:42:21,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:42:21,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:42:21,100 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_bd8145d1-74be-4385-aadf-b27a14a30aed/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e09e2fe0d9f978fd259d1d805e514754ab2def67 [2020-12-01 17:42:21,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:42:21,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:42:21,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:42:21,424 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:42:21,425 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:42:21,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c [2020-12-01 17:42:21,527 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/data/7beb389c3/b5c2f3a7be3642b6901a3e6d82e3604e/FLAGabfa3fa0e [2020-12-01 17:42:22,085 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:42:22,085 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig4.c [2020-12-01 17:42:22,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/data/7beb389c3/b5c2f3a7be3642b6901a3e6d82e3604e/FLAGabfa3fa0e [2020-12-01 17:42:22,477 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/data/7beb389c3/b5c2f3a7be3642b6901a3e6d82e3604e [2020-12-01 17:42:22,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:42:22,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:42:22,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:42:22,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:42:22,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:42:22,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ccdf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22, skipping insertion in model container [2020-12-01 17:42:22,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:42:22,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:42:22,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:42:22,724 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:42:22,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:42:22,774 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:42:22,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22 WrapperNode [2020-12-01 17:42:22,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:42:22,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:42:22,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:42:22,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:42:22,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:42:22,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:42:22,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:42:22,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:42:22,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22" (1/1) ... [2020-12-01 17:42:22,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:42:22,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:42:22,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:42:22,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:42:22,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:42:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:42:22,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:42:22,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:42:23,085 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:42:23,086 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 17:42:23,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:42:23 BoogieIcfgContainer [2020-12-01 17:42:23,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:42:23,089 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:42:23,089 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:42:23,101 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:42:23,101 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:42:23" (1/1) ... [2020-12-01 17:42:23,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:42:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:42:23,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-01 17:42:23,150 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-01 17:42:23,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:42:23,152 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:42:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:42:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:42:23,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:42:23,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-12-01 17:42:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-12-01 17:42:23,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:42:23,325 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:42:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:42:23,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:42:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:42:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 18 states and 27 transitions. [2020-12-01 17:42:23,450 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2020-12-01 17:42:23,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:42:23,453 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:42:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:42:23,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:42:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:42:23,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 31 transitions. [2020-12-01 17:42:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions. [2020-12-01 17:42:23,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:42:23,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:42:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:42:23,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:42:24,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:42:24,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 22 states and 34 transitions. [2020-12-01 17:42:24,022 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2020-12-01 17:42:24,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:42:24,024 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:42:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:42:24,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:42:24,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:42:24,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 15 states and 22 transitions. [2020-12-01 17:42:24,177 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2020-12-01 17:42:24,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:42:24,178 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:42:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:42:24,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:42:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:42:24,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2020-12-01 17:42:24,383 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2020-12-01 17:42:24,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:42:24,384 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:42:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:42:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:42:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:42:24,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-12-01 17:42:24,525 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-12-01 17:42:24,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:42:24,526 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2020-12-01 17:42:24,533 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-01 17:42:24,567 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2020-12-01 17:42:24,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:42:24 ImpRootNode [2020-12-01 17:42:24,578 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:42:24,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:42:24,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:42:24,579 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:42:24,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:42:23" (3/4) ... [2020-12-01 17:42:24,582 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:42:24,591 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 17:42:24,591 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 17:42:24,592 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:42:24,629 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bd8145d1-74be-4385-aadf-b27a14a30aed/bin/ukojak/witness.graphml [2020-12-01 17:42:24,629 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:42:24,631 INFO L168 Benchmark]: Toolchain (without parser) took 2142.63 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.9 MB in the beginning and 80.4 MB in the end (delta: -4.5 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:42:24,632 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 77.6 MB. Free memory was 35.1 MB in the beginning and 35.0 MB in the end (delta: 38.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:42:24,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.05 ms. Allocated memory is still 107.0 MB. Free memory was 75.7 MB in the beginning and 85.9 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:42:24,633 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.96 ms. Allocated memory is still 107.0 MB. Free memory was 85.9 MB in the beginning and 84.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:42:24,634 INFO L168 Benchmark]: Boogie Preprocessor took 27.47 ms. Allocated memory is still 107.0 MB. Free memory was 84.5 MB in the beginning and 83.6 MB in the end (delta: 831.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:42:24,635 INFO L168 Benchmark]: RCFGBuilder took 242.39 ms. Allocated memory is still 107.0 MB. Free memory was 83.6 MB in the beginning and 72.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 17:42:24,635 INFO L168 Benchmark]: CodeCheck took 1488.50 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 72.6 MB in the beginning and 82.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-12-01 17:42:24,636 INFO L168 Benchmark]: Witness Printer took 51.03 ms. Allocated memory is still 130.0 MB. Free memory was 82.5 MB in the beginning and 80.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:42:24,639 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: 1.4s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 384 SDtfs, 782 SDslu, 940 SDs, 0 SdLazy, 2352 SolverSat, 510 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 344 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 491 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 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: 22]: 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: 22]: 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 && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 77.6 MB. Free memory was 35.1 MB in the beginning and 35.0 MB in the end (delta: 38.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.05 ms. Allocated memory is still 107.0 MB. Free memory was 75.7 MB in the beginning and 85.9 MB in the end (delta: -10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.96 ms. Allocated memory is still 107.0 MB. Free memory was 85.9 MB in the beginning and 84.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.47 ms. Allocated memory is still 107.0 MB. Free memory was 84.5 MB in the beginning and 83.6 MB in the end (delta: 831.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 242.39 ms. Allocated memory is still 107.0 MB. Free memory was 83.6 MB in the beginning and 72.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 1488.50 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 72.6 MB in the beginning and 82.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Witness Printer took 51.03 ms. Allocated memory is still 130.0 MB. Free memory was 82.5 MB in the beginning and 80.4 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...