./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.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_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/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 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:18:03,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:18:03,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:18:03,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:18:03,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:18:03,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:18:03,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:18:03,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:18:03,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:18:03,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:18:03,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:18:03,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:18:03,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:18:03,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:18:03,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:18:03,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:18:03,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:18:03,536 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:18:03,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:18:03,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:18:03,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:18:03,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:18:03,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:18:03,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:18:03,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:18:03,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:18:03,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:18:03,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:18:03,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:18:03,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:18:03,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:18:03,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:18:03,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:18:03,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:18:03,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:18:03,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:18:03,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:18:03,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:18:03,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:18:03,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:18:03,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:18:03,572 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 17:18:03,629 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:18:03,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:18:03,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 17:18:03,632 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 17:18:03,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:18:03,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:18:03,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:18:03,635 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:18:03,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:18:03,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:18:03,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 17:18:03,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:18:03,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 17:18:03,638 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 17:18:03,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 17:18:03,638 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:18:03,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 17:18:03,639 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:18:03,639 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:18:03,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:18:03,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:18:03,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:18:03,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:18:03,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:18:03,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 17:18:03,641 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:18:03,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:18:03,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 17:18:03,642 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_ec706c55-7136-45a4-9296-ca363319e727/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 [2020-12-01 17:18:04,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:18:04,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:18:04,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:18:04,109 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:18:04,111 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:18:04,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2020-12-01 17:18:04,260 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/data/892453542/0deb86710b99494a96e1676dba04b4ff/FLAGe4168d2e2 [2020-12-01 17:18:04,902 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:18:04,903 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2020-12-01 17:18:04,911 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/data/892453542/0deb86710b99494a96e1676dba04b4ff/FLAGe4168d2e2 [2020-12-01 17:18:05,285 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/data/892453542/0deb86710b99494a96e1676dba04b4ff [2020-12-01 17:18:05,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:18:05,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:18:05,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:18:05,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:18:05,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:18:05,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44964979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05, skipping insertion in model container [2020-12-01 17:18:05,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:18:05,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:18:05,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:18:05,545 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:18:05,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:18:05,611 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:18:05,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05 WrapperNode [2020-12-01 17:18:05,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:18:05,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:18:05,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:18:05,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:18:05,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:18:05,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:18:05,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:18:05,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:18:05,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05" (1/1) ... [2020-12-01 17:18:05,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:18:05,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:18:05,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:18:05,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:18:05,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:18:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:18:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:18:05,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:18:06,114 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:18:06,114 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 17:18:06,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:18:06 BoogieIcfgContainer [2020-12-01 17:18:06,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:18:06,119 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:18:06,119 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:18:06,135 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:18:06,135 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:18:06" (1/1) ... [2020-12-01 17:18:06,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:18:06,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:18:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-01 17:18:06,210 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-01 17:18:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:18:06,214 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:18:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:18:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:18:06,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:18:06,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2020-12-01 17:18:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2020-12-01 17:18:06,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 17:18:06,422 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:18:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:18:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:18:06,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:18:06,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-12-01 17:18:06,573 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-12-01 17:18:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:18:06,577 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:18:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:18:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:18:06,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:18:06,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 32 transitions. [2020-12-01 17:18:06,816 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2020-12-01 17:18:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 17:18:06,817 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:18:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:18:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:18:07,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:18:07,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions. [2020-12-01 17:18:07,171 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2020-12-01 17:18:07,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:18:07,172 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:18:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:18:07,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:18:07,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:18:07,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 22 states and 35 transitions. [2020-12-01 17:18:07,422 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 35 transitions. [2020-12-01 17:18:07,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:18:07,423 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:18:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:18:07,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:18:07,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:18:07,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2020-12-01 17:18:07,713 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2020-12-01 17:18:07,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:18:07,715 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:18:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:18:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:18:08,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:18:08,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2020-12-01 17:18:08,040 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2020-12-01 17:18:08,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:18:08,041 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:18:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:18:08,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:18:08,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:18:08,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-12-01 17:18:08,302 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-12-01 17:18:08,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:18:08,303 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-12-01 17:18:08,311 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-01 17:18:08,363 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2020-12-01 17:18:08,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:18:08 ImpRootNode [2020-12-01 17:18:08,378 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:18:08,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:18:08,379 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:18:08,379 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:18:08,380 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:18:06" (3/4) ... [2020-12-01 17:18:08,384 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:18:08,395 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 17:18:08,396 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-01 17:18:08,396 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:18:08,469 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec706c55-7136-45a4-9296-ca363319e727/bin/ukojak/witness.graphml [2020-12-01 17:18:08,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:18:08,476 INFO L168 Benchmark]: Toolchain (without parser) took 3183.27 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 56.5 MB in the beginning and 56.5 MB in the end (delta: -60.6 kB). Peak memory consumption was 32.0 MB. Max. memory is 16.1 GB. [2020-12-01 17:18:08,476 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 88.1 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:18:08,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.79 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 56.3 MB in the beginning and 99.9 MB in the end (delta: -43.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:18:08,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.01 ms. Allocated memory is still 121.6 MB. Free memory was 99.9 MB in the beginning and 98.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:18:08,479 INFO L168 Benchmark]: Boogie Preprocessor took 35.44 ms. Allocated memory is still 121.6 MB. Free memory was 98.5 MB in the beginning and 97.8 MB in the end (delta: 658.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:18:08,483 INFO L168 Benchmark]: RCFGBuilder took 406.47 ms. Allocated memory is still 121.6 MB. Free memory was 97.8 MB in the beginning and 86.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:18:08,485 INFO L168 Benchmark]: CodeCheck took 2258.70 ms. Allocated memory is still 121.6 MB. Free memory was 86.6 MB in the beginning and 58.6 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2020-12-01 17:18:08,486 INFO L168 Benchmark]: Witness Printer took 94.13 ms. Allocated memory is still 121.6 MB. Free memory was 58.6 MB in the beginning and 56.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:18:08,493 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: 2.1s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 768 SDtfs, 1558 SDslu, 2124 SDs, 0 SdLazy, 4692 SolverSat, 922 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 484 GetRequests, 422 SyntacticMatches, 14 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 610 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 10/10 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: 20]: 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: 20]: 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: 18]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 88.1 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.79 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 56.3 MB in the beginning and 99.9 MB in the end (delta: -43.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.01 ms. Allocated memory is still 121.6 MB. Free memory was 99.9 MB in the beginning and 98.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.44 ms. Allocated memory is still 121.6 MB. Free memory was 98.5 MB in the beginning and 97.8 MB in the end (delta: 658.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 406.47 ms. Allocated memory is still 121.6 MB. Free memory was 97.8 MB in the beginning and 86.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 2258.70 ms. Allocated memory is still 121.6 MB. Free memory was 86.6 MB in the beginning and 58.6 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. * Witness Printer took 94.13 ms. Allocated memory is still 121.6 MB. Free memory was 58.6 MB in the beginning and 56.5 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...