./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2 --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 a6e3a784a750bf7b16fa903053e15129f66e8882f86a4384a56334995c21abd1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:51:09,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:51:10,010 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:51:10,015 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:51:10,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:51:10,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:51:10,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:51:10,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:51:10,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:51:10,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:51:10,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:51:10,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:51:10,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:51:10,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:51:10,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:51:10,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:51:10,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:51:10,058 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:51:10,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:51:10,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:51:10,060 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:51:10,061 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:51:10,061 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:51:10,062 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:51:10,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:51:10,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:51:10,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:51:10,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:51:10,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:51:10,065 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:51:10,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:51:10,066 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:51:10,067 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_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6e3a784a750bf7b16fa903053e15129f66e8882f86a4384a56334995c21abd1 [2023-11-21 18:51:10,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:51:10,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:51:10,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:51:10,373 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:51:10,374 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:51:10,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c [2023-11-21 18:51:13,751 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:51:13,959 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:51:13,960 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.12.c [2023-11-21 18:51:13,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/data/a4a32c232/e1009fc2ca7945189aad3c79d60a6b9e/FLAGab54cbd97 [2023-11-21 18:51:13,993 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/data/a4a32c232/e1009fc2ca7945189aad3c79d60a6b9e [2023-11-21 18:51:14,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:51:14,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:51:14,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:51:14,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:51:14,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:51:14,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:51:13" (1/1) ... [2023-11-21 18:51:14,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68007696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14, skipping insertion in model container [2023-11-21 18:51:14,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:51:13" (1/1) ... [2023-11-21 18:51:14,037 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:51:14,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:51:14,206 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:51:14,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:51:14,230 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:51:14,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14 WrapperNode [2023-11-21 18:51:14,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:51:14,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:51:14,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:51:14,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:51:14,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,266 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-11-21 18:51:14,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:51:14,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:51:14,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:51:14,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:51:14,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:51:14,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:51:14,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:51:14,290 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:51:14,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:51:14,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:51:14,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:51:14,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:51:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:51:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:51:14,471 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:51:14,474 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:51:14,573 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:51:14,636 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:51:14,638 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:51:14,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:51:14 BoogieIcfgContainer [2023-11-21 18:51:14,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:51:14,642 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:51:14,643 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:51:14,657 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:51:14,658 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:51:14" (1/1) ... [2023-11-21 18:51:14,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:51:14,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:51:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-21 18:51:14,775 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-21 18:51:14,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:51:14,777 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:51:14,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:51:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:14,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:51:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:14,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:51:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:15,004 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:51:15,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:51:15 ImpRootNode [2023-11-21 18:51:15,052 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:51:15,053 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:51:15,053 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:51:15,053 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:51:15,054 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:51:14" (3/4) ... [2023-11-21 18:51:15,055 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 18:51:15,126 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:51:15,126 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:51:15,133 INFO L158 Benchmark]: Toolchain (without parser) took 1124.75ms. Allocated memory is still 144.7MB. Free memory was 97.0MB in the beginning and 63.7MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-21 18:51:15,135 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 144.7MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:51:15,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.82ms. Allocated memory is still 144.7MB. Free memory was 97.0MB in the beginning and 87.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 18:51:15,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.27ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 86.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:51:15,141 INFO L158 Benchmark]: Boogie Preprocessor took 21.05ms. Allocated memory is still 144.7MB. Free memory was 86.4MB in the beginning and 85.5MB in the end (delta: 834.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:51:15,141 INFO L158 Benchmark]: RCFGBuilder took 351.71ms. Allocated memory is still 144.7MB. Free memory was 85.1MB in the beginning and 75.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 18:51:15,142 INFO L158 Benchmark]: CodeCheck took 409.45ms. Allocated memory is still 144.7MB. Free memory was 75.5MB in the beginning and 65.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 18:51:15,146 INFO L158 Benchmark]: Witness Printer took 73.70ms. Allocated memory is still 144.7MB. Free memory was 65.4MB in the beginning and 63.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:51:15,152 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, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 3 NumberOfCodeBlocks, 3 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: 28]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y, oldx; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < 5 [L27] oldx = x VAL [x=-2, x=-2, y=2147483647] [L28] oldx - y VAL [x=-2, x=-2, y=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 144.7MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.82ms. Allocated memory is still 144.7MB. Free memory was 97.0MB in the beginning and 87.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.27ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 86.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.05ms. Allocated memory is still 144.7MB. Free memory was 86.4MB in the beginning and 85.5MB in the end (delta: 834.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 351.71ms. Allocated memory is still 144.7MB. Free memory was 85.1MB in the beginning and 75.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 409.45ms. Allocated memory is still 144.7MB. Free memory was 75.5MB in the beginning and 65.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 73.70ms. Allocated memory is still 144.7MB. Free memory was 65.4MB in the beginning and 63.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 18:51:15,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1534b2ff-4a74-4bc6-be15-f50afb06c1b4/bin/ukojak-verify-i0I2FZA1j2/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)