./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.08.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_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/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_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/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_aee7adef-84aa-45fa-97c6-a8a9dabdd693/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 e9896c26f9a261046dd1a225a104cb001b522a1c83be9df70f0bb92b97427614 --- 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 17:03:14,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:03:14,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:03:14,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:03:14,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:03:14,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:03:14,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:03:14,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:03:14,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:03:14,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:03:14,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:03:14,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:03:14,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:03:14,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:03:14,446 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:03:14,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:03:14,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:03:14,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:03:14,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:03:14,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:03:14,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:03:14,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:03:14,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:03:14,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:03:14,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:03:14,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:03:14,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:03:14,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:03:14,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:03:14,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:03:14,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:03:14,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:03:14,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:03:14,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:03:14,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:03:14,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:03:14,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:03:14,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:03:14,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:03:14,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:03:14,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:03:14,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 17:03:14,525 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:03:14,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:03:14,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:03:14,526 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 17:03:14,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:03:14,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:03:14,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:03:14,528 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:03:14,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:03:14,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:03:14,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:03:14,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:03:14,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:03:14,530 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 17:03:14,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:03:14,530 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:03:14,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:03:14,531 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:03:14,531 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:03:14,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:03:14,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:03:14,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:03:14,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:03:14,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:03:14,532 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:03:14,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:03:14,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:03:14,533 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_aee7adef-84aa-45fa-97c6-a8a9dabdd693/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9896c26f9a261046dd1a225a104cb001b522a1c83be9df70f0bb92b97427614 [2022-10-17 17:03:14,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:03:14,821 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:03:14,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:03:14,825 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:03:14,826 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:03:14,827 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.08.c [2022-10-17 17:03:14,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/data/dd6abf2cc/41672cbd97eb453799193761864e49a1/FLAGdf2ccf932 [2022-10-17 17:03:15,415 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:03:15,416 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.08.c [2022-10-17 17:03:15,422 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/data/dd6abf2cc/41672cbd97eb453799193761864e49a1/FLAGdf2ccf932 [2022-10-17 17:03:15,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/data/dd6abf2cc/41672cbd97eb453799193761864e49a1 [2022-10-17 17:03:15,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:03:15,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:03:15,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:03:15,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:03:15,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:03:15,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:03:15" (1/1) ... [2022-10-17 17:03:15,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5972b4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:15, skipping insertion in model container [2022-10-17 17:03:15,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:03:15" (1/1) ... [2022-10-17 17:03:15,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:03:15,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:03:16,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:03:16,006 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:03:16,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:03:16,029 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:03:16,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16 WrapperNode [2022-10-17 17:03:16,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:03:16,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:03:16,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:03:16,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:03:16,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,062 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-10-17 17:03:16,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:03:16,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:03:16,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:03:16,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:03:16,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,082 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:03:16,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:03:16,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:03:16,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:03:16,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:03:16,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:03:16,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:03:16,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:03:16,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:03:16,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:03:16,235 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:03:16,238 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:03:16,348 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:03:16,368 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:03:16,368 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:03:16,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:03:16 BoogieIcfgContainer [2022-10-17 17:03:16,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:03:16,372 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:03:16,372 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:03:16,381 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:03:16,382 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:03:16" (1/1) ... [2022-10-17 17:03:16,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:03:16,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:03:16,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2022-10-17 17:03:16,453 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-10-17 17:03:16,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-10-17 17:03:16,456 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:03:16,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:03:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:03:16,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:03:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:03:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:03:16,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 17:03:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 17:03:16,594 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2022-10-17 17:03:16,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:03:16 ImpRootNode [2022-10-17 17:03:16,633 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:03:16,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:03:16,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:03:16,634 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:03:16,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:03:16" (3/4) ... [2022-10-17 17:03:16,637 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 17:03:16,671 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:03:16,671 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:03:16,673 INFO L158 Benchmark]: Toolchain (without parser) took 887.77ms. Allocated memory is still 100.7MB. Free memory was 67.9MB in the beginning and 52.1MB in the end (delta: 15.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-10-17 17:03:16,674 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:03:16,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.39ms. Allocated memory is still 100.7MB. Free memory was 67.7MB in the beginning and 75.5MB in the end (delta: -7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 17:03:16,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.45ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 74.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:03:16,677 INFO L158 Benchmark]: Boogie Preprocessor took 20.95ms. Allocated memory is still 100.7MB. Free memory was 74.2MB in the beginning and 73.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:03:16,678 INFO L158 Benchmark]: RCFGBuilder took 286.24ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 63.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 17:03:16,679 INFO L158 Benchmark]: CodeCheck took 260.73ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 53.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 17:03:16,680 INFO L158 Benchmark]: Witness Printer took 37.97ms. Allocated memory is still 100.7MB. Free memory was 53.6MB in the beginning and 52.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:03:16,686 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, 20 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 27]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, z; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] z = __VERIFIER_nondet_int() [L27] x - y VAL [x=2147483647, y=-1, z=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.39ms. Allocated memory is still 100.7MB. Free memory was 67.7MB in the beginning and 75.5MB in the end (delta: -7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.45ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 74.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.95ms. Allocated memory is still 100.7MB. Free memory was 74.2MB in the beginning and 73.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.24ms. Allocated memory is still 100.7MB. Free memory was 73.0MB in the beginning and 63.3MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 260.73ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 53.6MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 37.97ms. Allocated memory is still 100.7MB. Free memory was 53.6MB in the beginning and 52.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 17:03:16,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aee7adef-84aa-45fa-97c6-a8a9dabdd693/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)