./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --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 f214ec9c3463df033475d113d73a81f8b3f4c0aa0f373ac8a65b03e1f1c77c7f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:04:18,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:04:18,773 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:04:18,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:04:18,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:04:18,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:04:18,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:04:18,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:04:18,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:04:18,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:04:18,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:04:18,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:04:18,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:04:18,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:04:18,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:04:18,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:04:18,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:04:18,820 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:04:18,821 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:04:18,821 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:04:18,822 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:04:18,827 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:04:18,828 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:04:18,828 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:04:18,831 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:04:18,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:04:18,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:04:18,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:04:18,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:04:18,833 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:04:18,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:04:18,834 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:04:18,835 INFO L153 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_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f214ec9c3463df033475d113d73a81f8b3f4c0aa0f373ac8a65b03e1f1c77c7f [2023-11-23 20:04:19,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:04:19,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:04:19,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:04:19,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:04:19,257 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:04:19,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04.c [2023-11-23 20:04:22,772 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:04:23,093 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:04:23,094 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex1.04.c [2023-11-23 20:04:23,104 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/data/f4be8fbdf/9bf78070eafb4d489de7204462aa622d/FLAG9576c9e61 [2023-11-23 20:04:23,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/data/f4be8fbdf/9bf78070eafb4d489de7204462aa622d [2023-11-23 20:04:23,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:04:23,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:04:23,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:04:23,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:04:23,150 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:04:23,154 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,155 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@626f81e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23, skipping insertion in model container [2023-11-23 20:04:23,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,186 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:04:23,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:04:23,427 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:04:23,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:04:23,458 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:04:23,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23 WrapperNode [2023-11-23 20:04:23,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:04:23,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:04:23,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:04:23,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:04:23,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,503 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-11-23 20:04:23,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:04:23,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:04:23,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:04:23,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:04:23,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:04:23,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:04:23,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:04:23,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:04:23,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:04:23,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:04:23,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:04:23,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:04:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:04:23,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:04:23,753 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:04:23,756 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:04:23,854 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:04:23,885 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:04:23,885 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:04:23,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:23 BoogieIcfgContainer [2023-11-23 20:04:23,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:04:23,902 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:04:23,902 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:04:23,915 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:04:23,916 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:23" (1/1) ... [2023-11-23 20:04:23,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:04:23,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:23,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2023-11-23 20:04:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-11-23 20:04:23,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:04:23,994 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:23,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:04:24,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:04:24,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:04:24,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-23 20:04:24,296 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-23 20:04:24,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:04:24,296 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:04:24,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:04:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:04:24,308 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:04:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:04:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:04:24,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:04:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:04:24,391 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:04:24,424 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short2 could not be translated [2023-11-23 20:04:24,426 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short2 could not be translated [2023-11-23 20:04:24,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:04:24 ImpRootNode [2023-11-23 20:04:24,430 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:04:24,432 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:04:24,432 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:04:24,432 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:04:24,433 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:04:23" (3/4) ... [2023-11-23 20:04:24,437 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:04:24,441 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short2 could not be translated [2023-11-23 20:04:24,442 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short2 could not be translated [2023-11-23 20:04:24,499 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:04:24,499 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:04:24,506 INFO L158 Benchmark]: Toolchain (without parser) took 1364.51ms. Allocated memory is still 167.8MB. Free memory was 131.5MB in the beginning and 91.5MB in the end (delta: 39.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-23 20:04:24,508 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:04:24,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.46ms. Allocated memory is still 167.8MB. Free memory was 131.5MB in the beginning and 122.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:04:24,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.43ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 120.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:04:24,511 INFO L158 Benchmark]: Boogie Preprocessor took 45.16ms. Allocated memory is still 167.8MB. Free memory was 120.9MB in the beginning and 120.1MB in the end (delta: 752.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:04:24,512 INFO L158 Benchmark]: RCFGBuilder took 336.60ms. Allocated memory is still 167.8MB. Free memory was 119.5MB in the beginning and 109.8MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:04:24,513 INFO L158 Benchmark]: CodeCheck took 528.80ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 93.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:04:24,516 INFO L158 Benchmark]: Witness Printer took 68.04ms. Allocated memory is still 167.8MB. Free memory was 93.1MB in the beginning and 91.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:04:24,522 INFO L338 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 2 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, oldx; [L24] x = __VERIFIER_nondet_int() [L25] oldx = __VERIFIER_nondet_int() [L26] x > 1 && 2*x <= oldx VAL [x=0, x=1073741824] [L26] 2*x VAL [x=0, x=1073741824] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 117.4MB. Free memory is still 87.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.46ms. Allocated memory is still 167.8MB. Free memory was 131.5MB in the beginning and 122.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.43ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 120.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.16ms. Allocated memory is still 167.8MB. Free memory was 120.9MB in the beginning and 120.1MB in the end (delta: 752.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.60ms. Allocated memory is still 167.8MB. Free memory was 119.5MB in the beginning and 109.8MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 528.80ms. Allocated memory is still 167.8MB. Free memory was 109.8MB in the beginning and 93.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 68.04ms. Allocated memory is still 167.8MB. Free memory was 93.1MB in the beginning and 91.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short2 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short2 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:04:24,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec586fc2-2bcd-4ac8-922e-a6d3b5777efc/bin/ukojak-verify-1t5iHCbJaC/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)