./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Piecewise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Piecewise.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL --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 ac2fbc3b92c237eee672d002679ee7a51e4ecff20f91c05c8145e18adc82f593 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 08:06:21,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 08:06:21,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 08:06:21,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 08:06:21,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 08:06:21,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 08:06:21,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 08:06:21,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 08:06:21,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 08:06:21,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 08:06:21,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 08:06:21,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 08:06:21,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 08:06:22,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 08:06:22,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 08:06:22,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 08:06:22,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 08:06:22,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 08:06:22,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 08:06:22,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 08:06:22,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 08:06:22,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 08:06:22,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 08:06:22,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 08:06:22,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 08:06:22,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 08:06:22,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 08:06:22,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 08:06:22,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 08:06:22,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 08:06:22,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 08:06:22,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 08:06:22,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 08:06:22,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 08:06:22,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 08:06:22,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 08:06:22,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 08:06:22,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 08:06:22,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 08:06:22,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 08:06:22,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 08:06:22,062 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-25 08:06:22,114 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 08:06:22,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 08:06:22,116 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 08:06:22,117 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 08:06:22,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 08:06:22,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 08:06:22,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 08:06:22,118 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 08:06:22,119 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 08:06:22,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 08:06:22,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 08:06:22,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 08:06:22,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 08:06:22,121 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 08:06:22,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 08:06:22,121 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 08:06:22,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 08:06:22,122 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 08:06:22,122 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 08:06:22,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 08:06:22,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 08:06:22,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 08:06:22,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 08:06:22,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 08:06:22,124 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 08:06:22,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 08:06:22,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 08:06:22,125 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_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac2fbc3b92c237eee672d002679ee7a51e4ecff20f91c05c8145e18adc82f593 [2021-11-25 08:06:22,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 08:06:22,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 08:06:22,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 08:06:22,602 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 08:06:22,603 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 08:06:22,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/termination-crafted/Piecewise.c [2021-11-25 08:06:22,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/data/eb3ac8309/0df85384942348c6b97a219c3a642df6/FLAG4c887172b [2021-11-25 08:06:23,392 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 08:06:23,393 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/sv-benchmarks/c/termination-crafted/Piecewise.c [2021-11-25 08:06:23,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/data/eb3ac8309/0df85384942348c6b97a219c3a642df6/FLAG4c887172b [2021-11-25 08:06:23,756 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/data/eb3ac8309/0df85384942348c6b97a219c3a642df6 [2021-11-25 08:06:23,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 08:06:23,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 08:06:23,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 08:06:23,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 08:06:23,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 08:06:23,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:06:23" (1/1) ... [2021-11-25 08:06:23,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2e5aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:23, skipping insertion in model container [2021-11-25 08:06:23,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:06:23" (1/1) ... [2021-11-25 08:06:23,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 08:06:23,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 08:06:23,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 08:06:24,002 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 08:06:24,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 08:06:24,063 INFO L208 MainTranslator]: Completed translation [2021-11-25 08:06:24,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24 WrapperNode [2021-11-25 08:06:24,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 08:06:24,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 08:06:24,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 08:06:24,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 08:06:24,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,110 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2021-11-25 08:06:24,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 08:06:24,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 08:06:24,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 08:06:24,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 08:06:24,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 08:06:24,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 08:06:24,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 08:06:24,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 08:06:24,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 08:06:24,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 08:06:24,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 08:06:24,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 08:06:24,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 08:06:24,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 08:06:24,332 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 08:06:24,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 08:06:24,441 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 08:06:24,463 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 08:06:24,464 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 08:06:24,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:06:24 BoogieIcfgContainer [2021-11-25 08:06:24,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 08:06:24,468 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 08:06:24,468 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 08:06:24,480 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 08:06:24,481 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:06:24" (1/1) ... [2021-11-25 08:06:24,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 08:06:24,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:06:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2021-11-25 08:06:24,559 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-25 08:06:24,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 08:06:24,561 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:06:24,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:06:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:06:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:06:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:06:24,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2021-11-25 08:06:24,751 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2021-11-25 08:06:24,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 08:06:24,752 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:06:24,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:06:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:06:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:06:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:06:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2021-11-25 08:06:24,931 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-11-25 08:06:24,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 08:06:24,932 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:06:24,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:06:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:06:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:06:25,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:06:25,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2021-11-25 08:06:25,162 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2021-11-25 08:06:25,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 08:06:25,163 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:06:25,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:06:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:06:25,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:06:25,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:06:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2021-11-25 08:06:25,423 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2021-11-25 08:06:25,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 08:06:25,427 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:06:25,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:06:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:06:25,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 08:06:25,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:06:25,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2021-11-25 08:06:25,561 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2021-11-25 08:06:25,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 08:06:25,562 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 08:06:25,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 08:06:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 08:06:25,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 08:06:25,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 08:06:25,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2021-11-25 08:06:25,684 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-11-25 08:06:25,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 08:06:25,685 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2021-11-25 08:06:25,696 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-11-25 08:06:25,746 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2021-11-25 08:06:25,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 08:06:25 ImpRootNode [2021-11-25 08:06:25,758 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 08:06:25,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 08:06:25,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 08:06:25,760 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 08:06:25,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:06:24" (3/4) ... [2021-11-25 08:06:25,764 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 08:06:25,779 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-25 08:06:25,779 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-25 08:06:25,779 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 08:06:25,847 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 08:06:25,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 08:06:25,848 INFO L158 Benchmark]: Toolchain (without parser) took 2085.41ms. Allocated memory is still 104.9MB. Free memory was 73.9MB in the beginning and 67.9MB in the end (delta: 5.9MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-11-25 08:06:25,849 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 81.8MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 08:06:25,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.17ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 82.9MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 08:06:25,851 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.79ms. Allocated memory is still 104.9MB. Free memory was 82.9MB in the beginning and 81.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 08:06:25,851 INFO L158 Benchmark]: Boogie Preprocessor took 21.52ms. Allocated memory is still 104.9MB. Free memory was 81.6MB in the beginning and 80.8MB in the end (delta: 778.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 08:06:25,852 INFO L158 Benchmark]: RCFGBuilder took 330.61ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 71.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 08:06:25,861 INFO L158 Benchmark]: CodeCheck took 1290.43ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 70.5MB in the end (delta: 854.6kB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2021-11-25 08:06:25,862 INFO L158 Benchmark]: Witness Printer took 87.74ms. Allocated memory is still 104.9MB. Free memory was 70.5MB in the beginning and 67.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 08:06:25,865 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, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, 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, 113 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 423 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 0 mSDtfsCounter, 423 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 316 SyntacticMatches, 8 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 5/5 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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: 22]: Loop Invariant Derived loop invariant: q <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 81.8MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.17ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 82.9MB in the end (delta: -9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.79ms. Allocated memory is still 104.9MB. Free memory was 82.9MB in the beginning and 81.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.52ms. Allocated memory is still 104.9MB. Free memory was 81.6MB in the beginning and 80.8MB in the end (delta: 778.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.61ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 71.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1290.43ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 70.5MB in the end (delta: 854.6kB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. * Witness Printer took 87.74ms. Allocated memory is still 104.9MB. Free memory was 70.5MB in the beginning and 67.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-25 08:06:25,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc1ac480-e601-4598-ad6a-7106b1a8ae4e/bin/ukojak-d1pc8ZmBRL/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