./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB --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 2a8c97e87f793b5839cb424b8cc5fefc3a9d4b8a56c80aade72a0ae572eae02d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:01:10,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:01:10,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:01:10,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:01:10,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:01:10,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:01:10,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:01:10,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:01:10,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:01:10,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:01:10,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:01:10,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:01:10,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:01:10,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:01:10,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:01:10,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:01:10,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:01:10,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:01:10,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:01:10,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:01:10,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:01:10,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:01:10,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:01:10,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:01:10,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:01:10,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:01:10,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:01:10,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:01:10,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:01:10,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:01:10,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:01:10,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:01:10,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:01:10,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:01:10,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:01:10,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:01:10,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:01:10,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:01:10,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:01:10,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:01:10,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:01:10,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 17:01:10,694 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:01:10,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:01:10,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:01:10,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:01:10,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:01:10,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:01:10,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:01:10,696 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:01:10,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:01:10,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:01:10,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:01:10,697 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:01:10,697 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:01:10,697 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 17:01:10,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:01:10,698 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:01:10,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:01:10,698 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:01:10,698 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:01:10,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:01:10,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:01:10,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:01:10,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:01:10,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:01:10,699 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:01:10,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:01:10,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:01:10,700 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_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a8c97e87f793b5839cb424b8cc5fefc3a9d4b8a56c80aade72a0ae572eae02d [2022-10-17 17:01:10,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:01:10,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:01:10,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:01:10,993 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:01:10,993 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:01:10,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c [2022-10-17 17:01:11,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/data/064010f61/c0766d2e25f2423887348e4b80ed503d/FLAGc8bc3e17b [2022-10-17 17:01:11,525 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:01:11,525 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9.c [2022-10-17 17:01:11,532 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/data/064010f61/c0766d2e25f2423887348e4b80ed503d/FLAGc8bc3e17b [2022-10-17 17:01:11,913 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/data/064010f61/c0766d2e25f2423887348e4b80ed503d [2022-10-17 17:01:11,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:01:11,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:01:11,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:01:11,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:01:11,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:01:11,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:01:11" (1/1) ... [2022-10-17 17:01:11,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518b3b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:11, skipping insertion in model container [2022-10-17 17:01:11,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:01:11" (1/1) ... [2022-10-17 17:01:11,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:01:11,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:01:12,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:01:12,145 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:01:12,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:01:12,176 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:01:12,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12 WrapperNode [2022-10-17 17:01:12,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:01:12,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:01:12,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:01:12,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:01:12,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,214 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-10-17 17:01:12,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:01:12,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:01:12,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:01:12,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:01:12,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,244 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:01:12,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:01:12,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:01:12,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:01:12,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:01:12,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:01:12,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:01:12,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:01:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:01:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:01:12,422 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:01:12,425 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:01:12,565 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:01:12,586 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:01:12,586 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:01:12,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:01:12 BoogieIcfgContainer [2022-10-17 17:01:12,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:01:12,590 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:01:12,590 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:01:12,602 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:01:12,603 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:01:12" (1/1) ... [2022-10-17 17:01:12,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:01:12,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:12,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2022-10-17 17:01:12,714 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-10-17 17:01:12,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:01:12,716 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:12,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:12,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:12,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:12,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 16 states and 23 transitions. [2022-10-17 17:01:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2022-10-17 17:01:12,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:01:12,995 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:12,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:13,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:13,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:13,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 32 transitions. [2022-10-17 17:01:13,270 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2022-10-17 17:01:13,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:01:13,275 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:13,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:13,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:13,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions. [2022-10-17 17:01:13,578 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2022-10-17 17:01:13,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:01:13,579 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:13,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:13,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 25 states and 42 transitions. [2022-10-17 17:01:13,875 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 42 transitions. [2022-10-17 17:01:13,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:01:13,876 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:13,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:14,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 26 states and 44 transitions. [2022-10-17 17:01:14,038 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 44 transitions. [2022-10-17 17:01:14,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:01:14,039 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:14,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:01:14,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 14 states and 21 transitions. [2022-10-17 17:01:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 21 transitions. [2022-10-17 17:01:14,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:01:14,241 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:14,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:14,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 17:01:14,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:14,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 11 states and 16 transitions. [2022-10-17 17:01:14,411 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. [2022-10-17 17:01:14,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 17:01:14,411 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2022-10-17 17:01:14,421 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-10-17 17:01:14,488 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-10-17 17:01:14,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:01:14 ImpRootNode [2022-10-17 17:01:14,498 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:01:14,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:01:14,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:01:14,499 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:01:14,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:01:12" (3/4) ... [2022-10-17 17:01:14,503 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 17:01:14,512 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-10-17 17:01:14,512 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 17:01:14,513 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 17:01:14,550 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:01:14,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:01:14,551 INFO L158 Benchmark]: Toolchain (without parser) took 2632.48ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 60.7MB in the beginning and 60.3MB in the end (delta: 429.8kB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-10-17 17:01:14,552 INFO L158 Benchmark]: CDTParser took 1.41ms. Allocated memory is still 83.9MB. Free memory was 55.1MB in the beginning and 55.1MB in the end (delta: 18.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:01:14,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.10ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 61.4MB in the end (delta: -882.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:01:14,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.14ms. Allocated memory is still 83.9MB. Free memory was 61.3MB in the beginning and 60.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:01:14,554 INFO L158 Benchmark]: Boogie Preprocessor took 29.20ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 59.1MB in the end (delta: 965.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:01:14,555 INFO L158 Benchmark]: RCFGBuilder took 340.64ms. Allocated memory is still 83.9MB. Free memory was 59.0MB in the beginning and 49.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:01:14,556 INFO L158 Benchmark]: CodeCheck took 1908.70ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 49.4MB in the beginning and 62.9MB in the end (delta: -13.5MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-10-17 17:01:14,556 INFO L158 Benchmark]: Witness Printer took 51.68ms. Allocated memory is still 102.8MB. Free memory was 62.9MB in the beginning and 60.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:01:14,560 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: 1.8s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 145 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 574 IncrementalHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 0 mSDtfsCounter, 574 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 463 GetRequests, 422 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 9/9 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: q <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41ms. Allocated memory is still 83.9MB. Free memory was 55.1MB in the beginning and 55.1MB in the end (delta: 18.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.10ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 61.4MB in the end (delta: -882.6kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.14ms. Allocated memory is still 83.9MB. Free memory was 61.3MB in the beginning and 60.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.20ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 59.1MB in the end (delta: 965.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 340.64ms. Allocated memory is still 83.9MB. Free memory was 59.0MB in the beginning and 49.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1908.70ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 49.4MB in the beginning and 62.9MB in the end (delta: -13.5MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 51.68ms. Allocated memory is still 102.8MB. Free memory was 62.9MB in the beginning and 60.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 17:01:14,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4aa1244-1da8-4fc7-be3f-e49612daa6c0/bin/ukojak-92XMlrwhuB/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