./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e --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 c7af6276f284150d727ce6751d1ad224555978772fc00866b2076f280ebd27cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 21:58:34,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 21:58:34,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 21:58:35,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 21:58:35,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 21:58:35,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 21:58:35,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 21:58:35,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 21:58:35,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 21:58:35,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 21:58:35,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 21:58:35,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 21:58:35,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 21:58:35,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 21:58:35,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 21:58:35,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 21:58:35,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 21:58:35,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 21:58:35,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 21:58:35,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 21:58:35,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 21:58:35,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 21:58:35,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 21:58:35,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 21:58:35,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 21:58:35,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 21:58:35,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 21:58:35,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 21:58:35,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 21:58:35,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 21:58:35,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 21:58:35,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 21:58:35,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 21:58:35,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 21:58:35,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 21:58:35,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 21:58:35,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 21:58:35,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 21:58:35,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 21:58:35,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 21:58:35,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 21:58:35,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-13 21:58:35,166 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 21:58:35,166 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 21:58:35,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 21:58:35,172 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 21:58:35,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 21:58:35,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 21:58:35,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 21:58:35,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 21:58:35,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 21:58:35,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 21:58:35,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 21:58:35,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 21:58:35,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 21:58:35,175 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 21:58:35,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 21:58:35,176 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 21:58:35,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 21:58:35,176 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 21:58:35,176 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 21:58:35,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 21:58:35,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 21:58:35,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 21:58:35,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 21:58:35,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 21:58:35,178 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 21:58:35,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 21:58:35,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 21:58:35,179 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_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7af6276f284150d727ce6751d1ad224555978772fc00866b2076f280ebd27cb [2021-11-13 21:58:35,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 21:58:35,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 21:58:35,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 21:58:35,526 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 21:58:35,527 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 21:58:35,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2021-11-13 21:58:35,630 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/data/b3242ec8c/10753e7a1b1648e4b6064b0f185b7ca8/FLAGac0370be9 [2021-11-13 21:58:36,109 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 21:58:36,110 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2021-11-13 21:58:36,121 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/data/b3242ec8c/10753e7a1b1648e4b6064b0f185b7ca8/FLAGac0370be9 [2021-11-13 21:58:36,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/data/b3242ec8c/10753e7a1b1648e4b6064b0f185b7ca8 [2021-11-13 21:58:36,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 21:58:36,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 21:58:36,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 21:58:36,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 21:58:36,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 21:58:36,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c55928d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36, skipping insertion in model container [2021-11-13 21:58:36,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 21:58:36,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 21:58:36,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 21:58:36,702 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 21:58:36,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 21:58:36,724 INFO L208 MainTranslator]: Completed translation [2021-11-13 21:58:36,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36 WrapperNode [2021-11-13 21:58:36,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 21:58:36,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 21:58:36,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 21:58:36,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 21:58:36,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 21:58:36,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 21:58:36,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 21:58:36,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 21:58:36,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 21:58:36,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 21:58:36,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 21:58:36,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 21:58:36,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:58:36" (1/1) ... [2021-11-13 21:58:36,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 21:58:36,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/z3 [2021-11-13 21:58:36,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 21:58:36,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 21:58:36,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 21:58:36,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 21:58:37,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 21:58:37,022 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 21:58:37,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:58:37 BoogieIcfgContainer [2021-11-13 21:58:37,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 21:58:37,026 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 21:58:37,026 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 21:58:37,042 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 21:58:37,043 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:58:37" (1/1) ... [2021-11-13 21:58:37,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 21:58:37,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:37,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2021-11-13 21:58:37,108 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-11-13 21:58:37,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-13 21:58:37,110 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:37,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:37,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:37,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:37,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2021-11-13 21:58:37,384 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-11-13 21:58:37,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 21:58:37,384 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:37,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:37,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:37,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:37,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2021-11-13 21:58:37,476 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-13 21:58:37,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 21:58:37,476 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:37,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:37,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:37,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2021-11-13 21:58:37,822 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2021-11-13 21:58:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 21:58:37,822 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:37,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:37,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:38,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2021-11-13 21:58:38,166 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2021-11-13 21:58:38,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 21:58:38,170 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:38,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:38,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:38,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2021-11-13 21:58:38,462 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2021-11-13 21:58:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 21:58:38,464 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 21:58:38,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 21:58:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 21:58:38,546 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 21:58:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 21:58:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2021-11-13 21:58:38,621 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-13 21:58:38,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 21:58:38,622 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2021-11-13 21:58:38,631 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-11-13 21:58:38,686 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2021-11-13 21:58:38,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:58:38 ImpRootNode [2021-11-13 21:58:38,697 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 21:58:38,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 21:58:38,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 21:58:38,699 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 21:58:38,699 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:58:37" (3/4) ... [2021-11-13 21:58:38,703 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 21:58:38,713 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-13 21:58:38,713 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 21:58:38,713 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 21:58:38,759 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 21:58:38,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 21:58:38,760 INFO L158 Benchmark]: Toolchain (without parser) took 2246.57ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 67.7MB in the beginning and 78.8MB in the end (delta: -11.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2021-11-13 21:58:38,761 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 77.6MB. Free memory is still 36.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 21:58:38,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.81ms. Allocated memory is still 94.4MB. Free memory was 67.6MB in the beginning and 70.4MB in the end (delta: -2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 21:58:38,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.17ms. Allocated memory is still 94.4MB. Free memory was 70.4MB in the beginning and 69.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 21:58:38,763 INFO L158 Benchmark]: Boogie Preprocessor took 17.47ms. Allocated memory is still 94.4MB. Free memory was 69.1MB in the beginning and 68.2MB in the end (delta: 888.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 21:58:38,764 INFO L158 Benchmark]: RCFGBuilder took 248.35ms. Allocated memory is still 94.4MB. Free memory was 68.1MB in the beginning and 59.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 21:58:38,765 INFO L158 Benchmark]: CodeCheck took 1672.10ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 59.2MB in the beginning and 80.9MB in the end (delta: -21.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-13 21:58:38,766 INFO L158 Benchmark]: Witness Printer took 60.81ms. Allocated memory is still 127.9MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 21:58:38,772 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: 1.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 922.51ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 710.74ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 348 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 8 mSDtfsCounter, 348 mSolverCounterSat, 26.10ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 349 GetRequests, 293 SyntacticMatches, 14 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 7/7 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63ms. Allocated memory is still 77.6MB. Free memory is still 36.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.81ms. Allocated memory is still 94.4MB. Free memory was 67.6MB in the beginning and 70.4MB in the end (delta: -2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.17ms. Allocated memory is still 94.4MB. Free memory was 70.4MB in the beginning and 69.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.47ms. Allocated memory is still 94.4MB. Free memory was 69.1MB in the beginning and 68.2MB in the end (delta: 888.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 248.35ms. Allocated memory is still 94.4MB. Free memory was 68.1MB in the beginning and 59.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1672.10ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 59.2MB in the beginning and 80.9MB in the end (delta: -21.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Witness Printer took 60.81ms. Allocated memory is still 127.9MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-13 21:58:38,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7270eac-7081-484c-a939-e2cd28d7e1d8/bin/ukojak-2xVlg8857e/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