./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.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_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/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_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/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_026caae1-f89e-490c-991b-369b73e8c683/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 f3b0a85b193dd727e41f92aa8ad8c9c43fabbe0635b66c30fec4c384343071b2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 04:28:30,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 04:28:30,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 04:28:30,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 04:28:30,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 04:28:30,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 04:28:30,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 04:28:30,473 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 04:28:30,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 04:28:30,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 04:28:30,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 04:28:30,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 04:28:30,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 04:28:30,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 04:28:30,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 04:28:30,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 04:28:30,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 04:28:30,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 04:28:30,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 04:28:30,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 04:28:30,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 04:28:30,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 04:28:30,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 04:28:30,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 04:28:30,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 04:28:30,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 04:28:30,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 04:28:30,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 04:28:30,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 04:28:30,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 04:28:30,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 04:28:30,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 04:28:30,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 04:28:30,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 04:28:30,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 04:28:30,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 04:28:30,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 04:28:30,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 04:28:30,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 04:28:30,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 04:28:30,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 04:28:30,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-21 04:28:30,540 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 04:28:30,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 04:28:30,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 04:28:30,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 04:28:30,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 04:28:30,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 04:28:30,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 04:28:30,546 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 04:28:30,547 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 04:28:30,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 04:28:30,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 04:28:30,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 04:28:30,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 04:28:30,550 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 04:28:30,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 04:28:30,550 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 04:28:30,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 04:28:30,551 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 04:28:30,551 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 04:28:30,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 04:28:30,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:28:30,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 04:28:30,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 04:28:30,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 04:28:30,553 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 04:28:30,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 04:28:30,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 04:28:30,554 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_026caae1-f89e-490c-991b-369b73e8c683/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3b0a85b193dd727e41f92aa8ad8c9c43fabbe0635b66c30fec4c384343071b2 [2021-11-21 04:28:30,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 04:28:30,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 04:28:30,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 04:28:30,887 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 04:28:30,888 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 04:28:30,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c [2021-11-21 04:28:30,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/data/7a0a7b66f/588d302383904eaebb8b07f67afe870e/FLAGcf4b370fd [2021-11-21 04:28:31,376 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 04:28:31,377 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.09.c [2021-11-21 04:28:31,383 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/data/7a0a7b66f/588d302383904eaebb8b07f67afe870e/FLAGcf4b370fd [2021-11-21 04:28:31,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/data/7a0a7b66f/588d302383904eaebb8b07f67afe870e [2021-11-21 04:28:31,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 04:28:31,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 04:28:31,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 04:28:31,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 04:28:31,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 04:28:31,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:28:31" (1/1) ... [2021-11-21 04:28:31,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548a1cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:31, skipping insertion in model container [2021-11-21 04:28:31,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:28:31" (1/1) ... [2021-11-21 04:28:31,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 04:28:31,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 04:28:32,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:28:32,011 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 04:28:32,022 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 04:28:32,033 INFO L208 MainTranslator]: Completed translation [2021-11-21 04:28:32,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32 WrapperNode [2021-11-21 04:28:32,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 04:28:32,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 04:28:32,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 04:28:32,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 04:28:32,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,065 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2021-11-21 04:28:32,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 04:28:32,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 04:28:32,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 04:28:32,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 04:28:32,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 04:28:32,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 04:28:32,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 04:28:32,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 04:28:32,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 04:28:32,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 04:28:32,141 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 04:28:32,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 04:28:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 04:28:32,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 04:28:32,241 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 04:28:32,243 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 04:28:32,343 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 04:28:32,361 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 04:28:32,361 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 04:28:32,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:32 BoogieIcfgContainer [2021-11-21 04:28:32,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 04:28:32,364 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 04:28:32,364 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 04:28:32,374 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 04:28:32,375 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:32" (1/1) ... [2021-11-21 04:28:32,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 04:28:32,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:32,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-21 04:28:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-21 04:28:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 04:28:32,448 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:32,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:32,560 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 04:28:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-11-21 04:28:32,588 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-11-21 04:28:32,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 04:28:32,588 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:32,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:32,613 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 04:28:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:32,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2021-11-21 04:28:32,672 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2021-11-21 04:28:32,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 04:28:32,672 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:32,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 04:28:32,762 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 04:28:33,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 04:28:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2021-11-21 04:28:33,047 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2021-11-21 04:28:33,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 04:28:33,048 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 04:28:33,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 04:28:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:28:33,059 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 04:28:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:28:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:28:33,085 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 04:28:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 04:28:33,101 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2021-11-21 04:28:33,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 04:28:33 ImpRootNode [2021-11-21 04:28:33,127 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 04:28:33,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 04:28:33,128 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 04:28:33,128 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 04:28:33,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:28:32" (3/4) ... [2021-11-21 04:28:33,130 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 04:28:33,173 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 04:28:33,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 04:28:33,174 INFO L158 Benchmark]: Toolchain (without parser) took 1380.77ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 54.0MB in the beginning and 43.4MB in the end (delta: 10.6MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2021-11-21 04:28:33,175 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 88.1MB. Free memory was 58.8MB in the beginning and 58.8MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:28:33,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.48ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 53.6MB in the beginning and 84.3MB in the end (delta: -30.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:28:33,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.12ms. Allocated memory is still 107.0MB. Free memory was 84.3MB in the beginning and 83.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:28:33,180 INFO L158 Benchmark]: Boogie Preprocessor took 34.37ms. Allocated memory is still 107.0MB. Free memory was 83.1MB in the beginning and 82.3MB in the end (delta: 756.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 04:28:33,183 INFO L158 Benchmark]: RCFGBuilder took 259.05ms. Allocated memory is still 107.0MB. Free memory was 82.3MB in the beginning and 72.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 04:28:33,184 INFO L158 Benchmark]: CodeCheck took 763.42ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 45.2MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-21 04:28:33,184 INFO L158 Benchmark]: Witness Printer took 44.89ms. Allocated memory is still 107.0MB. Free memory was 44.6MB in the beginning and 43.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 04:28:33,189 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, 19 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, 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, 27 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 6 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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 - CounterExampleResult [Line: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, n; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] n = __VERIFIER_nondet_int() [L27] COND TRUE x > 0 && x < n VAL [n=2, x=1, y=-2147483648] [L28] EXPR -x VAL [n=2, x=1, y=-2147483648] [L28] -x + y VAL [n=2, x=1, y=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 88.1MB. Free memory was 58.8MB in the beginning and 58.8MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.48ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 53.6MB in the beginning and 84.3MB in the end (delta: -30.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.12ms. Allocated memory is still 107.0MB. Free memory was 84.3MB in the beginning and 83.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.37ms. Allocated memory is still 107.0MB. Free memory was 83.1MB in the beginning and 82.3MB in the end (delta: 756.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 259.05ms. Allocated memory is still 107.0MB. Free memory was 82.3MB in the beginning and 72.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 763.42ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 45.2MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 44.89ms. Allocated memory is still 107.0MB. Free memory was 44.6MB in the beginning and 43.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-21 04:28:33,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026caae1-f89e-490c-991b-369b73e8c683/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)