./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.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_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/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 e334e85dd18553afecc96b27cf49a003304cbca8 .................................................................................................................................................................................................................................................................................................... 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 19:29:49,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:29:49,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:29:49,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:29:49,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:29:49,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:29:49,211 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:29:49,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:29:49,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:29:49,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:29:49,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:29:49,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:29:49,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:29:49,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:29:49,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:29:49,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:29:49,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:29:49,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:29:49,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:29:49,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:29:49,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:29:49,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:29:49,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:29:49,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:29:49,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:29:49,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:29:49,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:29:49,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:29:49,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:29:49,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:29:49,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:29:49,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:29:49,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:29:49,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:29:49,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:29:49,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:29:49,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:29:49,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:29:49,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:29:49,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:29:49,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:29:49,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-29 19:29:49,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:29:49,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:29:49,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 19:29:49,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 19:29:49,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:29:49,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:29:49,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:29:49,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:29:49,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:29:49,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:29:49,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:29:49,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:29:49,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:29:49,367 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 19:29:49,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:29:49,367 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:29:49,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:29:49,368 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:29:49,368 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:29:49,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:29:49,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:29:49,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:29:49,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:29:49,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:29:49,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:29:49,370 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:29:49,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:29:49,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:29:49,371 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_974ee60a-87a4-4f32-a607-b3b927e69a40/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e334e85dd18553afecc96b27cf49a003304cbca8 [2020-11-29 19:29:49,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:29:49,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:29:49,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:29:49,766 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:29:49,768 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:29:49,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2020-11-29 19:29:49,875 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/data/157266cd4/28d8b0b384884cdbb8d38eab2a73496c/FLAG2c873e63a [2020-11-29 19:29:50,455 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:29:50,456 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2020-11-29 19:29:50,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/data/157266cd4/28d8b0b384884cdbb8d38eab2a73496c/FLAG2c873e63a [2020-11-29 19:29:50,826 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/data/157266cd4/28d8b0b384884cdbb8d38eab2a73496c [2020-11-29 19:29:50,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:29:50,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:29:50,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:29:50,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:29:50,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:29:50,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:29:50" (1/1) ... [2020-11-29 19:29:50,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4983e917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:50, skipping insertion in model container [2020-11-29 19:29:50,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:29:50" (1/1) ... [2020-11-29 19:29:50,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:29:50,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:29:51,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:29:51,038 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:29:51,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:29:51,070 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:29:51,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51 WrapperNode [2020-11-29 19:29:51,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:29:51,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:29:51,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:29:51,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:29:51,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51" (1/1) ... [2020-11-29 19:29:51,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51" (1/1) ... [2020-11-29 19:29:51,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:29:51,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:29:51,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:29:51,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:29:51,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51" (1/1) ... [2020-11-29 19:29:51,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51" (1/1) ... [2020-11-29 19:29:51,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51" (1/1) ... [2020-11-29 19:29:51,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51" (1/1) ... [2020-11-29 19:29:51,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51" (1/1) ... [2020-11-29 19:29:51,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51" (1/1) ... [2020-11-29 19:29:51,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51" (1/1) ... [2020-11-29 19:29:51,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:29:51,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:29:51,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:29:51,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:29:51,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:29:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/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 19:29:51,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:29:51,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:29:51,531 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:29:51,532 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 19:29:51,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:29:51 BoogieIcfgContainer [2020-11-29 19:29:51,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:29:51,536 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:29:51,536 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:29:51,549 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:29:51,550 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:29:51" (1/1) ... [2020-11-29 19:29:51,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:29:51,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-29 19:29:51,611 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-29 19:29:51,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 19:29:51,615 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:51,843 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 19:29:51,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:51,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2020-11-29 19:29:51,999 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2020-11-29 19:29:51,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 19:29:51,999 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:52,064 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 19:29:52,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:52,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2020-11-29 19:29:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2020-11-29 19:29:52,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:29:52,248 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:52,330 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 19:29:52,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:52,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2020-11-29 19:29:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2020-11-29 19:29:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 19:29:52,742 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:52,843 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 19:29:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2020-11-29 19:29:53,240 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2020-11-29 19:29:53,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:29:53,241 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:53,327 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 19:29:53,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:53,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 35 states and 60 transitions. [2020-11-29 19:29:53,929 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2020-11-29 19:29:53,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 19:29:53,930 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:53,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:29:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:54,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 37 states and 62 transitions. [2020-11-29 19:29:54,430 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 62 transitions. [2020-11-29 19:29:54,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 19:29:54,431 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:54,509 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 19:29:54,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:54,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 37 states and 60 transitions. [2020-11-29 19:29:54,956 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2020-11-29 19:29:54,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 19:29:54,957 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:54,979 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 19:29:55,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 37 states and 59 transitions. [2020-11-29 19:29:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 59 transitions. [2020-11-29 19:29:55,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:29:55,099 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:55,216 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 19:29:57,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:57,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 52 states and 86 transitions. [2020-11-29 19:29:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 86 transitions. [2020-11-29 19:29:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 19:29:57,345 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-29 19:29:57,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:57,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 53 states and 86 transitions. [2020-11-29 19:29:57,994 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 86 transitions. [2020-11-29 19:29:57,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 19:29:57,994 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:58,044 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 19:29:58,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:58,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 54 states and 87 transitions. [2020-11-29 19:29:58,495 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 87 transitions. [2020-11-29 19:29:58,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 19:29:58,496 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:29:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:29:58,559 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-11-29 19:29:58,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:29:58,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2020-11-29 19:29:58,917 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2020-11-29 19:29:58,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:29:58,918 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2020-11-29 19:29:58,928 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-29 19:29:59,190 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 19:29:59,196 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-11-29 19:29:59,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:29:59 ImpRootNode [2020-11-29 19:29:59,210 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:29:59,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:29:59,211 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:29:59,212 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:29:59,214 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:29:51" (3/4) ... [2020-11-29 19:29:59,219 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:29:59,232 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 19:29:59,233 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 19:29:59,233 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:29:59,328 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_974ee60a-87a4-4f32-a607-b3b927e69a40/bin/ukojak/witness.graphml [2020-11-29 19:29:59,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:29:59,331 INFO L168 Benchmark]: Toolchain (without parser) took 8498.19 ms. Allocated memory was 88.1 MB in the beginning and 159.4 MB in the end (delta: 71.3 MB). Free memory was 50.7 MB in the beginning and 79.6 MB in the end (delta: -28.9 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:29:59,332 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:29:59,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.92 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 50.6 MB in the beginning and 86.3 MB in the end (delta: -35.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:29:59,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.40 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 85.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:29:59,334 INFO L168 Benchmark]: Boogie Preprocessor took 24.43 ms. Allocated memory is still 109.1 MB. Free memory was 85.3 MB in the beginning and 84.3 MB in the end (delta: 936.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:29:59,335 INFO L168 Benchmark]: RCFGBuilder took 376.16 ms. Allocated memory is still 109.1 MB. Free memory was 84.1 MB in the beginning and 73.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:29:59,336 INFO L168 Benchmark]: CodeCheck took 7674.49 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 73.8 MB in the beginning and 82.7 MB in the end (delta: -8.9 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:29:59,337 INFO L168 Benchmark]: Witness Printer took 117.57 ms. Allocated memory is still 159.4 MB. Free memory was 81.6 MB in the beginning and 79.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:29:59,341 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, 14 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.3s, OverallIterations: 13, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18976 SDtfs, 35620 SDslu, 21568 SDs, 0 SdLazy, 130136 SolverSat, 30108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1463 GetRequests, 1288 SyntacticMatches, 43 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8045 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 4851 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 83/91 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: 23]: 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: 23]: 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (0 <= v2 && m <= 2147483647) && v1 <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory is still 66.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.92 ms. Allocated memory was 88.1 MB in the beginning and 109.1 MB in the end (delta: 21.0 MB). Free memory was 50.6 MB in the beginning and 86.3 MB in the end (delta: -35.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.40 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 85.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.43 ms. Allocated memory is still 109.1 MB. Free memory was 85.3 MB in the beginning and 84.3 MB in the end (delta: 936.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 376.16 ms. Allocated memory is still 109.1 MB. Free memory was 84.1 MB in the beginning and 73.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 7674.49 ms. Allocated memory was 109.1 MB in the beginning and 159.4 MB in the end (delta: 50.3 MB). Free memory was 73.8 MB in the beginning and 82.7 MB in the end (delta: -8.9 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. * Witness Printer took 117.57 ms. Allocated memory is still 159.4 MB. Free memory was 81.6 MB in the beginning and 79.6 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...