./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/css2003.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/css2003.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB --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 3cc40df30b48f0dde21200c49a8e3c2dcaea3151eb010f51f5a34e59bc04994b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:59:04,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:59:04,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:59:04,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:59:04,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:59:04,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:59:04,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:59:04,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:59:04,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:59:04,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:59:04,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:59:04,629 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:59:04,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:59:04,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:59:04,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:59:04,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:59:04,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:59:04,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:59:04,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:59:04,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:59:04,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:59:04,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:59:04,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:59:04,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:59:04,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:59:04,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:59:04,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:59:04,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:59:04,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:59:04,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:59:04,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:59:04,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:59:04,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:59:04,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:59:04,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:59:04,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:59:04,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:59:04,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:59:04,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:59:04,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:59:04,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:59:04,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:59:04,735 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:59:04,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:59:04,737 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:59:04,737 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:59:04,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:59:04,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:59:04,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:59:04,739 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:59:04,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:59:04,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:59:04,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:59:04,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:59:04,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:59:04,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:59:04,741 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:59:04,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:59:04,741 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:59:04,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:59:04,742 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:59:04,742 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:59:04,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:59:04,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:59:04,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:59:04,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:59:04,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:59:04,743 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:59:04,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:59:04,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:59:04,744 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_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cc40df30b48f0dde21200c49a8e3c2dcaea3151eb010f51f5a34e59bc04994b [2022-10-17 16:59:05,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:59:05,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:59:05,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:59:05,049 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:59:05,051 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:59:05,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/loop-lit/css2003.i [2022-10-17 16:59:05,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/data/54060879d/d9b33fc7654d4b879743fdbce32be5eb/FLAGd0477643d [2022-10-17 16:59:05,701 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:59:05,703 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/sv-benchmarks/c/loop-lit/css2003.i [2022-10-17 16:59:05,710 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/data/54060879d/d9b33fc7654d4b879743fdbce32be5eb/FLAGd0477643d [2022-10-17 16:59:06,046 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/data/54060879d/d9b33fc7654d4b879743fdbce32be5eb [2022-10-17 16:59:06,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:59:06,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:59:06,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:59:06,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:59:06,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:59:06,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7a91b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06, skipping insertion in model container [2022-10-17 16:59:06,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:59:06,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:59:06,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/sv-benchmarks/c/loop-lit/css2003.i[895,908] [2022-10-17 16:59:06,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:59:06,319 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:59:06,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/sv-benchmarks/c/loop-lit/css2003.i[895,908] [2022-10-17 16:59:06,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:59:06,361 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:59:06,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06 WrapperNode [2022-10-17 16:59:06,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:59:06,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:59:06,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:59:06,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:59:06,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,400 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2022-10-17 16:59:06,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:59:06,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:59:06,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:59:06,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:59:06,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,429 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:59:06,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:59:06,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:59:06,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:59:06,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:59:06,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:59:06,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:59:06,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:59:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:59:06,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:59:06,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:59:06,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:59:06,595 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:59:06,597 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:59:06,764 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:59:06,788 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:59:06,789 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:59:06,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:59:06 BoogieIcfgContainer [2022-10-17 16:59:06,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:59:06,792 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:59:06,792 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:59:06,806 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:59:06,807 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:59:06" (1/1) ... [2022-10-17 16:59:06,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:59:06,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:59:06,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2022-10-17 16:59:06,911 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2022-10-17 16:59:06,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 16:59:06,914 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:59:06,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:59:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:59:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:59:07,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:59:07,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2022-10-17 16:59:07,535 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-10-17 16:59:07,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:59:07,535 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:59:07,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:59:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:59:07,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:59:08,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:59:08,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2022-10-17 16:59:08,010 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-10-17 16:59:08,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:59:08,011 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2022-10-17 16:59:08,025 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:59:08,087 INFO L560 CodeCheckObserver]: Invariant with dag size 15 [2022-10-17 16:59:08,106 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2022-10-17 16:59:08,107 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:59:08,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:59:08 ImpRootNode [2022-10-17 16:59:08,107 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:59:08,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:59:08,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:59:08,108 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:59:08,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:59:06" (3/4) ... [2022-10-17 16:59:08,112 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:59:08,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-10-17 16:59:08,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 16:59:08,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:59:08,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:59:08,167 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:59:08,167 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:59:08,168 INFO L158 Benchmark]: Toolchain (without parser) took 2117.68ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 61.0MB in the beginning and 57.4MB in the end (delta: 3.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2022-10-17 16:59:08,169 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 58.3MB in the beginning and 58.2MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:59:08,171 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.64ms. Allocated memory is still 88.1MB. Free memory was 60.7MB in the beginning and 63.3MB in the end (delta: -2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 16:59:08,172 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.62ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 61.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:59:08,173 INFO L158 Benchmark]: Boogie Preprocessor took 36.67ms. Allocated memory is still 88.1MB. Free memory was 61.8MB in the beginning and 60.8MB in the end (delta: 996.0kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 16:59:08,175 INFO L158 Benchmark]: RCFGBuilder took 352.43ms. Allocated memory is still 88.1MB. Free memory was 60.6MB in the beginning and 51.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:59:08,175 INFO L158 Benchmark]: CodeCheck took 1315.10ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.1MB in the beginning and 59.9MB in the end (delta: -8.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-10-17 16:59:08,176 INFO L158 Benchmark]: Witness Printer took 59.17ms. Allocated memory is still 107.0MB. Free memory was 59.9MB in the beginning and 57.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:59:08,181 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. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 10 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((0 <= k && k <= 1) && i == 1) || ((2 <= i && 1 <= i + k) && i + k <= 2) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (2 <= i && 1 <= i + k) && i + k <= 2 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 58.3MB in the beginning and 58.2MB in the end (delta: 44.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.64ms. Allocated memory is still 88.1MB. Free memory was 60.7MB in the beginning and 63.3MB in the end (delta: -2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.62ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 61.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.67ms. Allocated memory is still 88.1MB. Free memory was 61.8MB in the beginning and 60.8MB in the end (delta: 996.0kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 352.43ms. Allocated memory is still 88.1MB. Free memory was 60.6MB in the beginning and 51.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1315.10ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.1MB in the beginning and 59.9MB in the end (delta: -8.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Witness Printer took 59.17ms. Allocated memory is still 107.0MB. Free memory was 59.9MB in the beginning and 57.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:59:08,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79bc3856-4c05-414d-ad37-4c5c6cd3a3bf/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE