./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY --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 8fcad1cc5c987e49a6afac90dd5119b31f7d391b ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 04:36:47,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:36:47,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:36:47,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:36:47,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:36:47,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:36:47,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:36:47,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:36:47,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:36:47,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:36:47,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:36:47,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:36:47,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:36:47,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:36:47,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:36:47,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:36:47,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:36:47,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:36:47,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:36:47,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:36:47,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:36:47,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:36:47,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:36:47,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:36:47,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:36:47,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:36:47,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:36:47,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:36:47,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:36:47,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:36:47,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:36:47,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:36:47,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:36:47,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:36:47,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:36:47,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:36:47,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:36:47,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:36:47,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:36:47,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:36:47,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:36:47,792 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 04:36:47,834 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:36:47,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:36:47,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:36:47,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:36:47,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:36:47,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:36:47,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:36:47,839 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:36:47,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:36:47,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:36:47,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:36:47,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:36:47,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:36:47,841 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 04:36:47,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:36:47,842 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:36:47,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:36:47,842 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:36:47,842 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:36:47,843 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:36:47,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:36:47,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:36:47,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:36:47,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:36:47,844 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:36:47,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:36:47,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:36:47,845 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_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fcad1cc5c987e49a6afac90dd5119b31f7d391b [2021-10-13 04:36:48,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:36:48,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:36:48,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:36:48,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:36:48,110 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:36:48,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2021-10-13 04:36:48,164 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/data/19c38a1e4/1e85b8cf270d4dabbe057ddfceb8f5d8/FLAG3487acfc6 [2021-10-13 04:36:48,580 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:36:48,581 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2021-10-13 04:36:48,586 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/data/19c38a1e4/1e85b8cf270d4dabbe057ddfceb8f5d8/FLAG3487acfc6 [2021-10-13 04:36:48,996 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/data/19c38a1e4/1e85b8cf270d4dabbe057ddfceb8f5d8 [2021-10-13 04:36:48,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:36:48,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:36:49,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:36:49,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:36:49,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:36:49,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:36:48" (1/1) ... [2021-10-13 04:36:49,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297801aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49, skipping insertion in model container [2021-10-13 04:36:49,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:36:48" (1/1) ... [2021-10-13 04:36:49,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:36:49,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:36:49,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:36:49,185 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:36:49,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:36:49,206 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:36:49,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49 WrapperNode [2021-10-13 04:36:49,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:36:49,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:36:49,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:36:49,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:36:49,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:36:49,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:36:49,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:36:49,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:36:49,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:36:49,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:36:49,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:36:49,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:36:49,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:36:49,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:36:49,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:36:49,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:36:49,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:36:49,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:36:49,569 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:36:49,569 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 04:36:49,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:36:49 BoogieIcfgContainer [2021-10-13 04:36:49,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:36:49,573 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:36:49,573 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:36:49,583 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:36:49,583 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:36:49" (1/1) ... [2021-10-13 04:36:49,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:36:49,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:49,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2021-10-13 04:36:49,619 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-10-13 04:36:49,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 04:36:49,621 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:49,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:49,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:49,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:49,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-10-13 04:36:49,768 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-10-13 04:36:49,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 04:36:49,768 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:49,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:49,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:49,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:49,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2021-10-13 04:36:49,796 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-10-13 04:36:49,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:36:49,796 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:49,796 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:49,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:49,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2021-10-13 04:36:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-10-13 04:36:49,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:36:49,884 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:49,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:49,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:49,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:49,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-10-13 04:36:49,924 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-10-13 04:36:49,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:36:49,925 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:49,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:49,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 04:36:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:49,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2021-10-13 04:36:49,997 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-10-13 04:36:49,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:36:49,997 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:49,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:50,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:36:50,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:50,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2021-10-13 04:36:50,453 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-10-13 04:36:50,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:36:50,453 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:36:50,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:36:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:36:50,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 04:36:50,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:36:50,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-10-13 04:36:50,483 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-10-13 04:36:50,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 04:36:50,484 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-10-13 04:36:50,490 INFO L759 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-10-13 04:36:50,551 INFO L565 CodeCheckObserver]: Invariant with dag size 3 [2021-10-13 04:36:50,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:36:50 ImpRootNode [2021-10-13 04:36:50,562 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:36:50,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:36:50,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:36:50,563 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:36:50,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:36:49" (3/4) ... [2021-10-13 04:36:50,566 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 04:36:50,577 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-13 04:36:50,577 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-13 04:36:50,577 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 04:36:50,632 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:36:50,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:36:50,634 INFO L168 Benchmark]: Toolchain (without parser) took 1633.49 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.3 MB in the beginning and 64.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:50,634 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory is still 66.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:36:50,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.01 ms. Allocated memory is still 86.0 MB. Free memory was 50.1 MB in the beginning and 64.2 MB in the end (delta: -14.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:50,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.55 ms. Allocated memory is still 86.0 MB. Free memory was 64.0 MB in the beginning and 62.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:36:50,639 INFO L168 Benchmark]: Boogie Preprocessor took 16.05 ms. Allocated memory is still 86.0 MB. Free memory was 62.8 MB in the beginning and 62.0 MB in the end (delta: 809.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:50,644 INFO L168 Benchmark]: RCFGBuilder took 319.42 ms. Allocated memory is still 86.0 MB. Free memory was 62.0 MB in the beginning and 53.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:50,645 INFO L168 Benchmark]: CodeCheck took 989.01 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.4 MB in the beginning and 66.8 MB in the end (delta: -13.4 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:50,645 INFO L168 Benchmark]: Witness Printer took 69.75 ms. Allocated memory is still 104.9 MB. Free memory was 66.8 MB in the beginning and 64.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:36:50,648 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. OverallTime: 886.8ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 256 SDtfs, 724 SDslu, 530 SDs, 0 SdLazy, 1916 SolverSat, 486 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 405.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 303 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 419.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 7.1ms SsaConstructionTime, 40.1ms SatisfiabilityAnalysisTime, 177.2ms InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 83 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 14]: Loop Invariant Derived loop invariant: 0 <= x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory is still 66.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 205.01 ms. Allocated memory is still 86.0 MB. Free memory was 50.1 MB in the beginning and 64.2 MB in the end (delta: -14.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.55 ms. Allocated memory is still 86.0 MB. Free memory was 64.0 MB in the beginning and 62.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.05 ms. Allocated memory is still 86.0 MB. Free memory was 62.8 MB in the beginning and 62.0 MB in the end (delta: 809.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 319.42 ms. Allocated memory is still 86.0 MB. Free memory was 62.0 MB in the beginning and 53.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 989.01 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 53.4 MB in the beginning and 66.8 MB in the end (delta: -13.4 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Witness Printer took 69.75 ms. Allocated memory is still 104.9 MB. Free memory was 66.8 MB in the beginning and 64.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-13 04:36:50,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ed19b0a-22b8-40f8-a08b-21d7ec6eb092/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...