./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.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_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/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 d38e7f8e829b6fb879eed3e9eda17afd63dbb323 ............................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:38:44,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:38:44,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:38:45,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:38:45,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:38:45,050 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:38:45,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:38:45,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:38:45,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:38:45,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:38:45,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:38:45,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:38:45,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:38:45,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:38:45,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:38:45,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:38:45,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:38:45,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:38:45,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:38:45,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:38:45,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:38:45,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:38:45,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:38:45,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:38:45,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:38:45,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:38:45,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:38:45,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:38:45,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:38:45,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:38:45,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:38:45,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:38:45,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:38:45,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:38:45,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:38:45,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:38:45,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:38:45,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:38:45,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:38:45,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:38:45,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:38:45,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-29 19:38:45,162 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:38:45,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:38:45,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 19:38:45,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 19:38:45,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:38:45,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:38:45,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:38:45,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:38:45,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:38:45,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:38:45,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:38:45,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:38:45,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:38:45,167 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 19:38:45,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:38:45,168 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:38:45,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:38:45,168 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:38:45,169 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:38:45,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:38:45,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:38:45,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:38:45,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:38:45,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:38:45,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:38:45,171 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:38:45,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:38:45,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:38:45,172 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_25894c20-6904-4a74-99b8-571eb7c726f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d38e7f8e829b6fb879eed3e9eda17afd63dbb323 [2020-11-29 19:38:45,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:38:45,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:38:45,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:38:45,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:38:45,528 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:38:45,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2020-11-29 19:38:45,603 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/data/1d93f1a3e/fc5c375615754549a5dd8f2042924f8f/FLAG8672f1cfa [2020-11-29 19:38:46,177 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:38:46,177 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig5.c [2020-11-29 19:38:46,185 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/data/1d93f1a3e/fc5c375615754549a5dd8f2042924f8f/FLAG8672f1cfa [2020-11-29 19:38:46,524 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/data/1d93f1a3e/fc5c375615754549a5dd8f2042924f8f [2020-11-29 19:38:46,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:38:46,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:38:46,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:38:46,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:38:46,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:38:46,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689005e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46, skipping insertion in model container [2020-11-29 19:38:46,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:38:46,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:38:46,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:38:46,787 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:38:46,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:38:46,816 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:38:46,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46 WrapperNode [2020-11-29 19:38:46,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:38:46,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:38:46,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:38:46,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:38:46,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:38:46,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:38:46,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:38:46,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:38:46,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46" (1/1) ... [2020-11-29 19:38:46,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:38:46,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:38:46,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:38:46,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:38:46,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:38:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/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 [2020-11-29 19:38:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:38:47,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:38:47,419 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:38:47,419 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 19:38:47,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:47 BoogieIcfgContainer [2020-11-29 19:38:47,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:38:47,423 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:38:47,423 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:38:47,434 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:38:47,435 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:47" (1/1) ... [2020-11-29 19:38:47,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:38:47,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-11-29 19:38:47,487 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-11-29 19:38:47,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 19:38:47,490 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:47,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:47,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2020-11-29 19:38:47,743 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-11-29 19:38:47,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 19:38:47,743 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:47,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:48,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:48,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2020-11-29 19:38:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2020-11-29 19:38:48,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 19:38:48,120 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:48,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:48,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2020-11-29 19:38:48,519 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2020-11-29 19:38:48,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:38:48,520 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:49,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:49,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2020-11-29 19:38:49,172 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2020-11-29 19:38:49,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:38:49,172 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:49,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:49,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:49,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2020-11-29 19:38:49,268 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2020-11-29 19:38:49,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:38:49,271 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:49,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:49,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 31 states and 44 transitions. [2020-11-29 19:38:49,445 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-11-29 19:38:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:38:49,446 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:49,696 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:50,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:50,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 36 states and 52 transitions. [2020-11-29 19:38:50,591 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2020-11-29 19:38:50,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:38:50,592 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:50,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:50,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2020-11-29 19:38:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2020-11-29 19:38:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 19:38:50,981 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:51,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2020-11-29 19:38:51,789 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2020-11-29 19:38:51,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 19:38:51,791 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:51,872 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:51,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 41 states and 60 transitions. [2020-11-29 19:38:51,915 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2020-11-29 19:38:51,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 19:38:51,916 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 19:38:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:52,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 47 states and 68 transitions. [2020-11-29 19:38:52,774 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-11-29 19:38:52,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:38:52,776 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:53,271 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:54,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:54,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 53 states and 74 transitions. [2020-11-29 19:38:54,749 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2020-11-29 19:38:54,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 19:38:54,750 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:38:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:38:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:38:55,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:38:55,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2020-11-29 19:38:55,080 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-11-29 19:38:55,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:38:55,081 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2020-11-29 19:38:55,090 INFO L765 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2020-11-29 19:38:55,269 INFO L569 CodeCheckObserver]: Invariant with dag size 22 [2020-11-29 19:38:55,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:38:55 ImpRootNode [2020-11-29 19:38:55,281 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:38:55,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:38:55,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:38:55,283 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:38:55,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:38:47" (3/4) ... [2020-11-29 19:38:55,287 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:38:55,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-29 19:38:55,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 19:38:55,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:38:55,360 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_25894c20-6904-4a74-99b8-571eb7c726f2/bin/ukojak/witness.graphml [2020-11-29 19:38:55,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:38:55,364 INFO L168 Benchmark]: Toolchain (without parser) took 8833.28 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 106.2 MB in the beginning and 140.6 MB in the end (delta: -34.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:38:55,365 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 83.9 MB. Free memory was 42.2 MB in the beginning and 42.2 MB in the end (delta: 71.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:38:55,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.82 ms. Allocated memory is still 138.4 MB. Free memory was 105.9 MB in the beginning and 114.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:38:55,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.42 ms. Allocated memory is still 138.4 MB. Free memory was 114.4 MB in the beginning and 112.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:38:55,380 INFO L168 Benchmark]: Boogie Preprocessor took 22.87 ms. Allocated memory is still 138.4 MB. Free memory was 112.9 MB in the beginning and 112.0 MB in the end (delta: 858.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:38:55,381 INFO L168 Benchmark]: RCFGBuilder took 519.61 ms. Allocated memory is still 138.4 MB. Free memory was 112.0 MB in the beginning and 101.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:38:55,382 INFO L168 Benchmark]: CodeCheck took 7858.37 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 101.1 MB in the beginning and 142.7 MB in the end (delta: -41.6 MB). Peak memory consumption was 89.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:38:55,384 INFO L168 Benchmark]: Witness Printer took 78.44 ms. Allocated memory is still 167.8 MB. Free memory was 142.7 MB in the beginning and 140.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:38:55,389 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, 15 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.6s, OverallIterations: 14, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 40174 SDslu, 0 SDs, 0 SdLazy, 200448 SolverSat, 32994 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1099 GetRequests, 896 SyntacticMatches, 85 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7659 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 7646 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 6/47 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: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((x <= y + 2147483645 && 2 <= y) && y <= 2) || ((2 * x <= 3 * y + 4294967287 && y < 2) && 1 <= (y + 1) / 2) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 83.9 MB. Free memory was 42.2 MB in the beginning and 42.2 MB in the end (delta: 71.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.82 ms. Allocated memory is still 138.4 MB. Free memory was 105.9 MB in the beginning and 114.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.42 ms. Allocated memory is still 138.4 MB. Free memory was 114.4 MB in the beginning and 112.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.87 ms. Allocated memory is still 138.4 MB. Free memory was 112.9 MB in the beginning and 112.0 MB in the end (delta: 858.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 519.61 ms. Allocated memory is still 138.4 MB. Free memory was 112.0 MB in the beginning and 101.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 7858.37 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 101.1 MB in the beginning and 142.7 MB in the end (delta: -41.6 MB). Peak memory consumption was 89.6 MB. Max. memory is 16.1 GB. * Witness Printer took 78.44 ms. Allocated memory is still 167.8 MB. Free memory was 142.7 MB in the beginning and 140.6 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...