./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.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_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/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 2b2cc94eb5b8374a9980482fd0dfec59d6d2cf62 ........................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-03 11:13:11,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 11:13:11,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 11:13:11,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 11:13:11,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 11:13:11,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 11:13:11,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 11:13:11,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 11:13:11,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 11:13:11,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 11:13:11,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 11:13:11,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 11:13:11,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 11:13:11,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 11:13:11,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 11:13:11,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 11:13:11,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 11:13:11,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 11:13:11,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 11:13:11,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 11:13:11,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 11:13:11,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 11:13:11,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 11:13:11,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 11:13:11,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 11:13:11,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 11:13:11,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 11:13:11,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 11:13:11,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 11:13:11,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 11:13:11,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 11:13:11,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 11:13:11,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 11:13:11,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 11:13:11,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 11:13:11,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 11:13:11,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 11:13:11,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 11:13:11,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 11:13:11,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 11:13:11,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 11:13:11,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-03 11:13:11,300 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 11:13:11,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 11:13:11,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 11:13:11,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 11:13:11,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 11:13:11,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 11:13:11,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 11:13:11,308 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 11:13:11,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 11:13:11,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 11:13:11,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 11:13:11,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 11:13:11,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 11:13:11,310 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 11:13:11,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 11:13:11,311 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 11:13:11,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 11:13:11,311 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 11:13:11,311 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 11:13:11,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 11:13:11,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 11:13:11,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:13:11,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 11:13:11,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 11:13:11,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 11:13:11,313 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 11:13:11,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 11:13:11,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 11:13:11,314 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_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b2cc94eb5b8374a9980482fd0dfec59d6d2cf62 [2020-12-03 11:13:11,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 11:13:11,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 11:13:11,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 11:13:11,628 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 11:13:11,631 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 11:13:11,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c [2020-12-03 11:13:11,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/data/119da8361/8752da243e024d948334512df9e65f75/FLAG28a9e7b26 [2020-12-03 11:13:12,248 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 11:13:12,248 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c [2020-12-03 11:13:12,255 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/data/119da8361/8752da243e024d948334512df9e65f75/FLAG28a9e7b26 [2020-12-03 11:13:12,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/data/119da8361/8752da243e024d948334512df9e65f75 [2020-12-03 11:13:12,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:13:12,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:13:12,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:13:12,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:13:12,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:13:12,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:12,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b5e9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12, skipping insertion in model container [2020-12-03 11:13:12,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:12,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:13:12,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:13:12,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:13:12,883 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:13:12,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:13:12,925 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:13:12,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12 WrapperNode [2020-12-03 11:13:12,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:13:12,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:13:12,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:13:12,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:13:12,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:12,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:12,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:13:12,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:13:12,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:13:12,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:13:12,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:12,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:12,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:12,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:13,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:13,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:13,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12" (1/1) ... [2020-12-03 11:13:13,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:13:13,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:13:13,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:13:13,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:13:13,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:13:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/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 [2020-12-03 11:13:13,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:13:13,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:13:13,419 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:13:13,419 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-03 11:13:13,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:13:13 BoogieIcfgContainer [2020-12-03 11:13:13,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:13:13,428 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:13:13,428 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:13:13,443 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:13:13,444 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:13:13" (1/1) ... [2020-12-03 11:13:13,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:13:13,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:13:13,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-03 11:13:13,506 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-03 11:13:13,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:13:13,509 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:13:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:13:13,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:13:13,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:13:13,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-03 11:13:13,778 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-03 11:13:13,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:13:13,779 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:13:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:13:13,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:13:13,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:13:13,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-12-03 11:13:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-12-03 11:13:13,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:13:13,944 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:13:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:13:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:13:14,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:13:14,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2020-12-03 11:13:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-12-03 11:13:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 11:13:14,051 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:13:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:13:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:13:14,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:13:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2020-12-03 11:13:14,126 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-12-03 11:13:14,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 11:13:14,127 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:13:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:13:14,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:13:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:13:14,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2020-12-03 11:13:14,225 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-12-03 11:13:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 11:13:14,226 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:13:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:13:14,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-03 11:13:14,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:13:14,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2020-12-03 11:13:14,319 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-12-03 11:13:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 11:13:14,319 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:13:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:13:14,353 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-03 11:13:14,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:13:14,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2020-12-03 11:13:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-12-03 11:13:14,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 11:13:14,707 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:13:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:13:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-03 11:13:15,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:13:15,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-03 11:13:15,419 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-03 11:13:15,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 11:13:15,420 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-12-03 11:13:15,428 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-03 11:13:15,551 INFO L569 CodeCheckObserver]: Invariant with dag size 5 [2020-12-03 11:13:15,571 INFO L569 CodeCheckObserver]: Invariant with dag size 11 [2020-12-03 11:13:15,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:13:15 ImpRootNode [2020-12-03 11:13:15,574 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:13:15,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:13:15,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:13:15,575 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:13:15,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:13:13" (3/4) ... [2020-12-03 11:13:15,580 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 11:13:15,594 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-03 11:13:15,594 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-03 11:13:15,596 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 11:13:15,659 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c74cf04a-06a4-47ee-b2ce-f17f7ac2a88c/bin/ukojak/witness.graphml [2020-12-03 11:13:15,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:13:15,662 INFO L168 Benchmark]: Toolchain (without parser) took 3050.50 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 87.5 MB in the beginning and 75.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2020-12-03 11:13:15,663 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:13:15,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.93 ms. Allocated memory is still 117.4 MB. Free memory was 87.3 MB in the beginning and 93.7 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:13:15,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.11 ms. Allocated memory is still 117.4 MB. Free memory was 93.7 MB in the beginning and 92.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:13:15,666 INFO L168 Benchmark]: Boogie Preprocessor took 43.60 ms. Allocated memory is still 117.4 MB. Free memory was 92.5 MB in the beginning and 91.6 MB in the end (delta: 867.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:13:15,667 INFO L168 Benchmark]: RCFGBuilder took 400.08 ms. Allocated memory is still 117.4 MB. Free memory was 91.6 MB in the beginning and 81.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 11:13:15,668 INFO L168 Benchmark]: CodeCheck took 2146.33 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 80.8 MB in the beginning and 77.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2020-12-03 11:13:15,669 INFO L168 Benchmark]: Witness Printer took 84.32 ms. Allocated memory is still 142.6 MB. Free memory was 77.1 MB in the beginning and 75.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:13:15,674 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: 1.9s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 768 SDtfs, 746 SDslu, 0 SDs, 0 SdLazy, 3518 SolverSat, 1032 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 446 GetRequests, 385 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 15/16 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: 24]: 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: 24]: 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: 19]: Loop Invariant Derived loop invariant: 0 <= x1 + 2147483648 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (0 <= x1 + 2147483648 && x1 <= 10) && x2 <= 1000 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.93 ms. Allocated memory is still 117.4 MB. Free memory was 87.3 MB in the beginning and 93.7 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.11 ms. Allocated memory is still 117.4 MB. Free memory was 93.7 MB in the beginning and 92.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.60 ms. Allocated memory is still 117.4 MB. Free memory was 92.5 MB in the beginning and 91.6 MB in the end (delta: 867.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 400.08 ms. Allocated memory is still 117.4 MB. Free memory was 91.6 MB in the beginning and 81.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 2146.33 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 80.8 MB in the beginning and 77.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. * Witness Printer took 84.32 ms. Allocated memory is still 142.6 MB. Free memory was 77.1 MB in the beginning and 75.0 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...