./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/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_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/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-a4ecdab [2020-11-28 04:38:51,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:38:51,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:38:51,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:38:51,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:38:51,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:38:51,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:38:51,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:38:51,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:38:51,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:38:51,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:38:51,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:38:51,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:38:51,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:38:51,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:38:51,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:38:51,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:38:51,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:38:51,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:38:51,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:38:51,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:38:51,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:38:51,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:38:51,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:38:51,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:38:51,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:38:51,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:38:51,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:38:51,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:38:51,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:38:51,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:38:51,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:38:51,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:38:51,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:38:51,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:38:51,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:38:51,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:38:51,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:38:51,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:38:51,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:38:51,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:38:51,425 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:38:51,450 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:38:51,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:38:51,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:38:51,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:38:51,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:38:51,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:38:51,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:38:51,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:38:51,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:38:51,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:38:51,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:38:51,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:38:51,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:38:51,456 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:38:51,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:38:51,457 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:38:51,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:38:51,458 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:38:51,458 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:38:51,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:38:51,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:38:51,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:51,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:38:51,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:38:51,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:38:51,461 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:38:51,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:38:51,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:38:51,462 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_6bfa6834-159a-438d-ac0f-2b618cdb6d64/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b2cc94eb5b8374a9980482fd0dfec59d6d2cf62 [2020-11-28 04:38:51,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:38:51,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:38:51,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:38:51,745 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:38:51,747 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:38:51,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c [2020-11-28 04:38:51,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/data/d1477c838/4b3711be79ef4692895bf2a35cbe978c/FLAG61d3eb15d [2020-11-28 04:38:52,238 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:38:52,240 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2-modified1000.c [2020-11-28 04:38:52,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/data/d1477c838/4b3711be79ef4692895bf2a35cbe978c/FLAG61d3eb15d [2020-11-28 04:38:52,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/data/d1477c838/4b3711be79ef4692895bf2a35cbe978c [2020-11-28 04:38:52,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:38:52,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:38:52,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:52,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:38:52,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:38:52,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c25cd34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52, skipping insertion in model container [2020-11-28 04:38:52,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:38:52,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:38:52,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:52,867 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:38:52,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:52,898 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:38:52,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52 WrapperNode [2020-11-28 04:38:52,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:52,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:52,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:38:52,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:38:52,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:52,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:38:52,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:38:52,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:38:52,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,957 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52" (1/1) ... [2020-11-28 04:38:52,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:38:52,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:38:52,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:38:52,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:38:52,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:38:53,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:38:53,251 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:38:53,251 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:38:53,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:53 BoogieIcfgContainer [2020-11-28 04:38:53,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:38:53,254 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:38:53,255 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:38:53,270 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:38:53,270 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:53" (1/1) ... [2020-11-28 04:38:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:38:53,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:53,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:38:53,314 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:38:53,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:38:53,316 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:53,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:53,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:53,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-11-28 04:38:53,521 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-11-28 04:38:53,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:38:53,521 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:53,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:53,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:53,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-11-28 04:38:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-11-28 04:38:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:38:53,659 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:53,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2020-11-28 04:38:53,719 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-11-28 04:38:53,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:38:53,720 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:53,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:53,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:53,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2020-11-28 04:38:53,804 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-11-28 04:38:53,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:38:53,804 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:53,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:53,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:53,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2020-11-28 04:38:53,915 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-11-28 04:38:53,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:38:53,915 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:53,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:38:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2020-11-28 04:38:54,038 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-11-28 04:38:54,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:38:54,038 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 04:38:54,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:54,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2020-11-28 04:38:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-28 04:38:54,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:38:54,526 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:54,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-28 04:38:55,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:55,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:38:55,318 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:38:55,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:38:55,318 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-11-28 04:38:55,325 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:38:55,443 INFO L569 CodeCheckObserver]: Invariant with dag size 5 [2020-11-28 04:38:55,453 INFO L569 CodeCheckObserver]: Invariant with dag size 11 [2020-11-28 04:38:55,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:38:55 ImpRootNode [2020-11-28 04:38:55,455 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:38:55,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:38:55,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:38:55,456 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:38:55,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:53" (3/4) ... [2020-11-28 04:38:55,459 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:38:55,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 04:38:55,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:38:55,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:38:55,507 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6bfa6834-159a-438d-ac0f-2b618cdb6d64/bin/ukojak/witness.graphml [2020-11-28 04:38:55,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:38:55,509 INFO L168 Benchmark]: Toolchain (without parser) took 2867.86 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 67.2 MB in the beginning and 78.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,510 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 71.3 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 41.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:55,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.93 ms. Allocated memory is still 86.0 MB. Free memory was 67.0 MB in the beginning and 63.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.87 ms. Allocated memory is still 86.0 MB. Free memory was 63.1 MB in the beginning and 62.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,512 INFO L168 Benchmark]: Boogie Preprocessor took 26.58 ms. Allocated memory is still 86.0 MB. Free memory was 61.8 MB in the beginning and 61.0 MB in the end (delta: 787.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:55,512 INFO L168 Benchmark]: RCFGBuilder took 289.93 ms. Allocated memory is still 86.0 MB. Free memory was 61.0 MB in the beginning and 50.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,512 INFO L168 Benchmark]: CodeCheck took 2200.31 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.3 MB in the beginning and 80.6 MB in the end (delta: -30.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,513 INFO L168 Benchmark]: Witness Printer took 51.95 ms. Allocated memory is still 104.9 MB. Free memory was 80.6 MB in the beginning and 78.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:55,516 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: 2.0s, 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, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s 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 0.27 ms. Allocated memory is still 71.3 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 41.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.93 ms. Allocated memory is still 86.0 MB. Free memory was 67.0 MB in the beginning and 63.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.87 ms. Allocated memory is still 86.0 MB. Free memory was 63.1 MB in the beginning and 62.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.58 ms. Allocated memory is still 86.0 MB. Free memory was 61.8 MB in the beginning and 61.0 MB in the end (delta: 787.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 289.93 ms. Allocated memory is still 86.0 MB. Free memory was 61.0 MB in the beginning and 50.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 2200.31 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.3 MB in the beginning and 80.6 MB in the end (delta: -30.4 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * Witness Printer took 51.95 ms. Allocated memory is still 104.9 MB. Free memory was 80.6 MB in the beginning and 78.5 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...