./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.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_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/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_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/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_a12b8030-f306-4a21-b504-f8d35fa3903a/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 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 22:32:39,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 22:32:39,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 22:32:39,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 22:32:39,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 22:32:39,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 22:32:39,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 22:32:39,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 22:32:39,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 22:32:39,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 22:32:39,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 22:32:39,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 22:32:39,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 22:32:39,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 22:32:39,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 22:32:39,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 22:32:39,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 22:32:39,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 22:32:39,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 22:32:39,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 22:32:39,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 22:32:39,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 22:32:39,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 22:32:39,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 22:32:39,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 22:32:39,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 22:32:39,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 22:32:39,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 22:32:39,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 22:32:39,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 22:32:39,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 22:32:39,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 22:32:39,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 22:32:39,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 22:32:39,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 22:32:39,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 22:32:39,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 22:32:39,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 22:32:39,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 22:32:39,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 22:32:39,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 22:32:39,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-13 22:32:39,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 22:32:39,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 22:32:39,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 22:32:39,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 22:32:39,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 22:32:39,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 22:32:39,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 22:32:39,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 22:32:39,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 22:32:39,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 22:32:39,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 22:32:39,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 22:32:39,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 22:32:39,982 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 22:32:39,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 22:32:39,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 22:32:39,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 22:32:39,983 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 22:32:39,983 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 22:32:39,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 22:32:39,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:32:39,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 22:32:39,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 22:32:39,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 22:32:39,985 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 22:32:39,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 22:32:39,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 22:32:39,986 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_a12b8030-f306-4a21-b504-f8d35fa3903a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709a9fb1525fc89256c547fbe03fef24399be5d6458f17d55fb4fce36419b886 [2021-11-13 22:32:40,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 22:32:40,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 22:32:40,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 22:32:40,344 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 22:32:40,345 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 22:32:40,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-11-13 22:32:40,447 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/data/9debc2348/a9d09258b8194ec7ab49b8650a483c7e/FLAG0943f0eb4 [2021-11-13 22:32:41,021 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 22:32:41,021 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/sv-benchmarks/c/termination-crafted/Cairo_step2-1.c [2021-11-13 22:32:41,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/data/9debc2348/a9d09258b8194ec7ab49b8650a483c7e/FLAG0943f0eb4 [2021-11-13 22:32:41,391 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/data/9debc2348/a9d09258b8194ec7ab49b8650a483c7e [2021-11-13 22:32:41,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 22:32:41,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 22:32:41,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 22:32:41,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 22:32:41,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 22:32:41,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e587074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41, skipping insertion in model container [2021-11-13 22:32:41,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 22:32:41,432 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 22:32:41,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:32:41,641 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 22:32:41,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:32:41,709 INFO L208 MainTranslator]: Completed translation [2021-11-13 22:32:41,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41 WrapperNode [2021-11-13 22:32:41,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 22:32:41,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 22:32:41,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 22:32:41,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 22:32:41,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 22:32:41,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 22:32:41,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 22:32:41,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 22:32:41,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 22:32:41,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 22:32:41,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 22:32:41,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 22:32:41,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:32:41" (1/1) ... [2021-11-13 22:32:41,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:32:41,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/z3 [2021-11-13 22:32:41,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 22:32:41,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 22:32:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 22:32:41,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 22:32:42,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 22:32:42,106 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 22:32:42,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:32:42 BoogieIcfgContainer [2021-11-13 22:32:42,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 22:32:42,110 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 22:32:42,111 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 22:32:42,123 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 22:32:42,124 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:32:42" (1/1) ... [2021-11-13 22:32:42,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 22:32:42,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:42,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2021-11-13 22:32:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-13 22:32:42,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 22:32:42,203 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:32:42,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:32:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:32:42,354 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 22:32:42,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:42,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-11-13 22:32:42,460 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-13 22:32:42,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 22:32:42,461 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:32:42,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:32:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:32:42,531 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 22:32:42,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:42,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2021-11-13 22:32:42,688 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-11-13 22:32:42,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 22:32:42,688 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:32:42,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:32:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:32:42,771 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 22:32:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:42,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-11-13 22:32:42,810 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-13 22:32:42,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 22:32:42,811 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:32:42,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:32:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:32:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 22:32:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:32:42,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2021-11-13 22:32:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-13 22:32:42,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 22:32:42,929 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2021-11-13 22:32:42,969 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-11-13 22:32:43,034 INFO L560 CodeCheckObserver]: Invariant with dag size 12 [2021-11-13 22:32:43,054 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-13 22:32:43,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:32:43 ImpRootNode [2021-11-13 22:32:43,055 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 22:32:43,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 22:32:43,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 22:32:43,057 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 22:32:43,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:32:42" (3/4) ... [2021-11-13 22:32:43,066 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 22:32:43,079 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-13 22:32:43,079 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 22:32:43,080 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 22:32:43,138 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 22:32:43,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 22:32:43,139 INFO L158 Benchmark]: Toolchain (without parser) took 1742.72ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 52.0MB in the beginning and 88.1MB in the end (delta: -36.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:32:43,140 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 88.1MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:32:43,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.79ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 51.7MB in the beginning and 91.6MB in the end (delta: -39.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-13 22:32:43,141 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.50ms. Allocated memory is still 113.2MB. Free memory was 91.3MB in the beginning and 90.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:32:43,142 INFO L158 Benchmark]: Boogie Preprocessor took 36.58ms. Allocated memory is still 113.2MB. Free memory was 90.0MB in the beginning and 89.2MB in the end (delta: 795.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:32:43,143 INFO L158 Benchmark]: RCFGBuilder took 313.81ms. Allocated memory is still 113.2MB. Free memory was 89.2MB in the beginning and 80.6MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 22:32:43,144 INFO L158 Benchmark]: CodeCheck took 945.19ms. Allocated memory is still 113.2MB. Free memory was 80.6MB in the beginning and 90.1MB in the end (delta: -9.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-13 22:32:43,144 INFO L158 Benchmark]: Witness Printer took 82.03ms. Allocated memory is still 113.2MB. Free memory was 90.1MB in the beginning and 88.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:32:43,162 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, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 5, 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, 40 SdHoareTripleChecker+Valid, 571.31ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 418.50ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 0 mSDtfsCounter, 142 mSolverCounterSat, 7.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 182 GetRequests, 162 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/5 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 1 <= x) || (x < 1 && 0 <= x + 1) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 88.1MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.79ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 51.7MB in the beginning and 91.6MB in the end (delta: -39.8MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.50ms. Allocated memory is still 113.2MB. Free memory was 91.3MB in the beginning and 90.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.58ms. Allocated memory is still 113.2MB. Free memory was 90.0MB in the beginning and 89.2MB in the end (delta: 795.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.81ms. Allocated memory is still 113.2MB. Free memory was 89.2MB in the beginning and 80.6MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 945.19ms. Allocated memory is still 113.2MB. Free memory was 80.6MB in the beginning and 90.1MB in the end (delta: -9.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 82.03ms. Allocated memory is still 113.2MB. Free memory was 90.1MB in the beginning and 88.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-13 22:32:43,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a12b8030-f306-4a21-b504-f8d35fa3903a/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