./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/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_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN --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 002ffbd09e057f56028aff15fe1fea8f5a73210903f4d60a4a822560ee8c3510 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 04:37:21,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 04:37:21,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 04:37:21,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 04:37:21,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 04:37:21,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 04:37:21,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 04:37:21,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 04:37:21,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 04:37:21,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 04:37:21,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 04:37:21,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 04:37:21,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 04:37:21,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 04:37:21,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 04:37:21,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 04:37:21,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 04:37:21,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 04:37:21,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 04:37:21,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 04:37:21,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 04:37:21,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 04:37:21,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 04:37:21,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 04:37:21,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 04:37:21,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 04:37:21,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 04:37:21,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 04:37:21,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 04:37:21,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 04:37:21,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 04:37:21,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 04:37:21,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 04:37:21,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 04:37:21,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 04:37:21,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 04:37:21,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 04:37:21,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 04:37:21,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 04:37:21,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 04:37:21,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 04:37:21,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-21 04:37:21,979 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 04:37:21,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 04:37:21,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 04:37:21,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 04:37:21,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 04:37:21,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 04:37:21,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 04:37:21,985 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 04:37:21,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 04:37:21,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 04:37:21,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 04:37:21,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 04:37:21,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 04:37:21,995 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 04:37:21,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 04:37:21,995 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 04:37:21,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 04:37:21,996 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 04:37:21,996 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 04:37:21,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 04:37:21,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:37:21,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 04:37:21,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 04:37:21,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 04:37:21,998 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 04:37:21,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 04:37:21,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 04:37:21,999 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_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 002ffbd09e057f56028aff15fe1fea8f5a73210903f4d60a4a822560ee8c3510 [2021-11-21 04:37:22,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 04:37:22,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 04:37:22,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 04:37:22,387 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 04:37:22,388 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 04:37:22,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2021-11-21 04:37:22,525 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/data/ea7dad9c0/624c99a412ce49ebad7f3a310b34a884/FLAG9d28cbfd3 [2021-11-21 04:37:23,067 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 04:37:23,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2021-11-21 04:37:23,074 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/data/ea7dad9c0/624c99a412ce49ebad7f3a310b34a884/FLAG9d28cbfd3 [2021-11-21 04:37:23,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/data/ea7dad9c0/624c99a412ce49ebad7f3a310b34a884 [2021-11-21 04:37:23,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 04:37:23,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 04:37:23,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 04:37:23,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 04:37:23,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 04:37:23,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f200a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23, skipping insertion in model container [2021-11-21 04:37:23,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 04:37:23,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 04:37:23,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:37:23,774 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 04:37:23,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:37:23,817 INFO L208 MainTranslator]: Completed translation [2021-11-21 04:37:23,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23 WrapperNode [2021-11-21 04:37:23,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 04:37:23,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 04:37:23,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 04:37:23,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 04:37:23,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,855 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2021-11-21 04:37:23,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 04:37:23,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 04:37:23,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 04:37:23,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 04:37:23,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 04:37:23,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 04:37:23,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 04:37:23,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 04:37:23,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:37:23" (1/1) ... [2021-11-21 04:37:23,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:37:23,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 04:37:23,935 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 04:37:23,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 04:37:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 04:37:24,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 04:37:24,063 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 04:37:24,065 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 04:37:24,214 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 04:37:24,247 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 04:37:24,249 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 04:37:24,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:37:24 BoogieIcfgContainer [2021-11-21 04:37:24,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 04:37:24,254 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 04:37:24,254 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 04:37:24,266 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 04:37:24,267 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:37:24" (1/1) ... [2021-11-21 04:37:24,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 04:37:24,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:37:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2021-11-21 04:37:24,381 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-11-21 04:37:24,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 04:37:24,384 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:37:24,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:37:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:37:24,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:37:24,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:37:24,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-21 04:37:24,654 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-21 04:37:24,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 04:37:24,654 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:37:24,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:37:24,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:37:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:37:24,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:37:24,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2021-11-21 04:37:24,687 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-21 04:37:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 04:37:24,688 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:37:24,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:37:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:37:24,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:37:24,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:37:24,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2021-11-21 04:37:24,845 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-21 04:37:24,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 04:37:24,848 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:37:24,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:37:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:37:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:37:24,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:37:24,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-21 04:37:24,902 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-21 04:37:24,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 04:37:24,902 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:37:24,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:37:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:37:24,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:37:25,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:37:25,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2021-11-21 04:37:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-21 04:37:25,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 04:37:25,042 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:37:25,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:37:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:37:25,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 04:37:25,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:37:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2021-11-21 04:37:25,455 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-21 04:37:25,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 04:37:25,455 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:37:25,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:37:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:37:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 04:37:25,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:37:25,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2021-11-21 04:37:25,491 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-21 04:37:25,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 04:37:25,492 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-11-21 04:37:25,503 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-11-21 04:37:25,579 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-21 04:37:25,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 04:37:25 ImpRootNode [2021-11-21 04:37:25,605 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 04:37:25,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 04:37:25,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 04:37:25,607 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 04:37:25,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:37:24" (3/4) ... [2021-11-21 04:37:25,611 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 04:37:25,621 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-21 04:37:25,634 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-21 04:37:25,634 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 04:37:25,691 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 04:37:25,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 04:37:25,699 INFO L158 Benchmark]: Toolchain (without parser) took 2211.79ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 64.8MB in the beginning and 47.9MB in the end (delta: 16.9MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2021-11-21 04:37:25,700 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 98.6MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:37:25,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.05ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 64.8MB in the beginning and 97.6MB in the end (delta: -32.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:37:25,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.12ms. Allocated memory is still 121.6MB. Free memory was 97.6MB in the beginning and 96.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:37:25,703 INFO L158 Benchmark]: Boogie Preprocessor took 31.77ms. Allocated memory is still 121.6MB. Free memory was 96.3MB in the beginning and 94.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:37:25,704 INFO L158 Benchmark]: RCFGBuilder took 359.61ms. Allocated memory is still 121.6MB. Free memory was 94.8MB in the beginning and 86.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:37:25,705 INFO L158 Benchmark]: CodeCheck took 1351.74ms. Allocated memory is still 121.6MB. Free memory was 85.8MB in the beginning and 50.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2021-11-21 04:37:25,706 INFO L158 Benchmark]: Witness Printer took 87.76ms. Allocated memory is still 121.6MB. Free memory was 50.0MB in the beginning and 47.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:37:25,713 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: 1.2s, OverallIterations: 8, 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, 132 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 111 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 306 IncrementalHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 28 mSDtfsCounter, 306 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 303 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s 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, 0.0s 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 0.77ms. Allocated memory is still 98.6MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.05ms. Allocated memory was 98.6MB in the beginning and 121.6MB in the end (delta: 23.1MB). Free memory was 64.8MB in the beginning and 97.6MB in the end (delta: -32.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.12ms. Allocated memory is still 121.6MB. Free memory was 97.6MB in the beginning and 96.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.77ms. Allocated memory is still 121.6MB. Free memory was 96.3MB in the beginning and 94.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 359.61ms. Allocated memory is still 121.6MB. Free memory was 94.8MB in the beginning and 86.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1351.74ms. Allocated memory is still 121.6MB. Free memory was 85.8MB in the beginning and 50.1MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 87.76ms. Allocated memory is still 121.6MB. Free memory was 50.0MB in the beginning and 47.9MB 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! [2021-11-21 04:37:25,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78efe695-94a2-498b-9277-4226674e7a45/bin/ukojak-vF6T2TMglN/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