./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/loopv1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/loopv1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7062369ded29eb59a5ee586d71a51c80ef84234b ............................................................................................................................................................................................................................................. 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 04:39:46,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:39:46,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:39:46,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:39:46,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:39:46,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:39:46,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:39:46,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:39:46,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:39:46,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:39:46,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:39:46,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:39:46,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:39:46,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:39:46,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:39:46,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:39:46,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:39:46,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:39:46,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:39:46,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:39:46,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:39:46,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:39:46,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:39:46,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:39:46,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:39:46,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:39:46,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:39:46,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:39:46,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:39:46,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:39:46,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:39:46,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:39:46,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:39:46,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:39:46,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:39:46,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:39:46,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:39:46,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:39:46,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:39:46,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:39:46,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:39:46,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:39:46,752 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:39:46,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:39:46,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:39:46,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:39:46,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:39:46,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:39:46,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:39:46,755 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:39:46,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:39:46,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:39:46,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:39:46,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:39:46,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:39:46,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:39:46,756 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:39:46,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:39:46,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:39:46,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:39:46,757 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:39:46,757 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:39:46,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:39:46,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:39:46,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:39:46,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:39:46,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:39:46,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:39:46,759 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:39:46,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:39:46,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:39:46,759 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_ebc213f0-182f-44d6-9c80-d48a3677e657/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7062369ded29eb59a5ee586d71a51c80ef84234b [2020-11-28 04:39:47,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:39:47,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:39:47,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:39:47,050 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:39:47,052 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:39:47,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/../../sv-benchmarks/c/loops-crafted-1/loopv1.c [2020-11-28 04:39:47,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/data/3e67ecd39/f5208473f222463ea2715e000eddfec0/FLAGc3b6a31b3 [2020-11-28 04:39:47,612 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:39:47,612 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/sv-benchmarks/c/loops-crafted-1/loopv1.c [2020-11-28 04:39:47,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/data/3e67ecd39/f5208473f222463ea2715e000eddfec0/FLAGc3b6a31b3 [2020-11-28 04:39:48,004 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/data/3e67ecd39/f5208473f222463ea2715e000eddfec0 [2020-11-28 04:39:48,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:39:48,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:39:48,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:48,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:39:48,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:39:48,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11dfc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48, skipping insertion in model container [2020-11-28 04:39:48,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:39:48,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:39:48,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:48,227 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:39:48,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:39:48,272 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:39:48,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48 WrapperNode [2020-11-28 04:39:48,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:39:48,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:48,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:39:48,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:39:48,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:39:48,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:39:48,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:39:48,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:39:48,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:39:48,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:39:48,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:39:48,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:39:48,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/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 04:39:48,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:39:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:39:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:39:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:39:48,821 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:39:48,822 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:39:48,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:48 BoogieIcfgContainer [2020-11-28 04:39:48,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:39:48,825 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:39:48,826 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:39:48,838 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:39:48,838 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:48" (1/1) ... [2020-11-28 04:39:48,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:39:48,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:48,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2020-11-28 04:39:48,887 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-28 04:39:48,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:39:48,889 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:49,178 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 04:39:49,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2020-11-28 04:39:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-11-28 04:39:49,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:39:49,266 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:49,489 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 04:39:49,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:49,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 12 states and 18 transitions. [2020-11-28 04:39:49,712 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 18 transitions. [2020-11-28 04:39:49,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:39:49,713 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:50,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:50,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:50,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 13 states and 20 transitions. [2020-11-28 04:39:50,442 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 20 transitions. [2020-11-28 04:39:50,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:39:50,443 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:39:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:39:50,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:39:51,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:39:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 9 states and 15 transitions. [2020-11-28 04:39:51,140 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 15 transitions. [2020-11-28 04:39:51,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:39:51,141 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2020-11-28 04:39:51,150 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:39:51,210 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:39:51,215 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:39:51,216 INFO L569 CodeCheckObserver]: Invariant with dag size 16 [2020-11-28 04:39:51,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:39:51 ImpRootNode [2020-11-28 04:39:51,235 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:39:51,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:39:51,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:39:51,237 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:39:51,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:48" (3/4) ... [2020-11-28 04:39:51,241 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:39:51,258 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-28 04:39:51,260 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:39:51,260 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:39:51,262 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:39:51,362 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ebc213f0-182f-44d6-9c80-d48a3677e657/bin/ukojak/witness.graphml [2020-11-28 04:39:51,363 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:39:51,365 INFO L168 Benchmark]: Toolchain (without parser) took 3355.42 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 59.9 MB in the beginning and 96.6 MB in the end (delta: -36.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:51,366 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 75.5 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:51,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.74 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 50.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:51,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.89 ms. Allocated memory is still 94.4 MB. Free memory was 50.3 MB in the beginning and 48.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:51,369 INFO L168 Benchmark]: Boogie Preprocessor took 19.23 ms. Allocated memory is still 94.4 MB. Free memory was 48.9 MB in the beginning and 48.0 MB in the end (delta: 964.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:39:51,369 INFO L168 Benchmark]: RCFGBuilder took 481.04 ms. Allocated memory is still 94.4 MB. Free memory was 47.9 MB in the beginning and 69.8 MB in the end (delta: -21.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:51,370 INFO L168 Benchmark]: CodeCheck took 2409.86 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 69.8 MB in the beginning and 70.1 MB in the end (delta: -283.8 kB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:51,371 INFO L168 Benchmark]: Witness Printer took 127.01 ms. Allocated memory is still 119.5 MB. Free memory was 70.1 MB in the beginning and 96.6 MB in the end (delta: -26.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:39:51,375 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, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 234 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 198 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 820 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/10 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: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: i == 0 || (1 <= n && i <= 3 * ((i + -12) / 3) + 12) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 75.5 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.74 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 50.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.89 ms. Allocated memory is still 94.4 MB. Free memory was 50.3 MB in the beginning and 48.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.23 ms. Allocated memory is still 94.4 MB. Free memory was 48.9 MB in the beginning and 48.0 MB in the end (delta: 964.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 481.04 ms. Allocated memory is still 94.4 MB. Free memory was 47.9 MB in the beginning and 69.8 MB in the end (delta: -21.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. * CodeCheck took 2409.86 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 69.8 MB in the beginning and 70.1 MB in the end (delta: -283.8 kB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. * Witness Printer took 127.01 ms. Allocated memory is still 119.5 MB. Free memory was 70.1 MB in the beginning and 96.6 MB in the end (delta: -26.5 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...