./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et4_true.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_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/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_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et4_true.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/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_ecc5fcda-29ff-4f2f-b122-4b01feb66209/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 fd425c4b2002ad50235bdf7942d03f600c35812ae9d16cfe392f9b6ae03e09d0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:02:31,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:02:31,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:02:31,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:02:31,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:02:31,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:02:31,452 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:02:31,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:02:31,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:02:31,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:02:31,463 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:02:31,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:02:31,464 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:02:31,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:02:31,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:02:31,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:02:31,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:02:31,470 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:02:31,470 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:02:31,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:02:31,471 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:02:31,473 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:02:31,474 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:02:31,474 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:02:31,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:02:31,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:02:31,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:02:31,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:02:31,477 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:02:31,478 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:02:31,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:02:31,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:02:31,480 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_ecc5fcda-29ff-4f2f-b122-4b01feb66209/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd425c4b2002ad50235bdf7942d03f600c35812ae9d16cfe392f9b6ae03e09d0 [2023-11-23 20:02:31,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:02:31,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:02:31,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:02:31,917 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:02:31,918 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:02:31,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/termination-numeric/Et4_true.c [2023-11-23 20:02:35,877 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:02:36,193 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:02:36,194 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/sv-benchmarks/c/termination-numeric/Et4_true.c [2023-11-23 20:02:36,204 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/data/3b8d0561a/8157ce6b74284f858b1a8e85dd48c7e4/FLAG09f488d91 [2023-11-23 20:02:36,229 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/data/3b8d0561a/8157ce6b74284f858b1a8e85dd48c7e4 [2023-11-23 20:02:36,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:02:36,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:02:36,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:02:36,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:02:36,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:02:36,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1652ab0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36, skipping insertion in model container [2023-11-23 20:02:36,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,293 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:02:36,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:02:36,507 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:02:36,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:02:36,542 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:02:36,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36 WrapperNode [2023-11-23 20:02:36,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:02:36,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:02:36,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:02:36,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:02:36,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,584 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-23 20:02:36,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:02:36,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:02:36,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:02:36,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:02:36,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,612 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:02:36,620 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:02:36,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:02:36,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:02:36,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:36" (1/1) ... [2023-11-23 20:02:36,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:02:36,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:02:36,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:02:36,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:02:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-11-23 20:02:36,723 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2023-11-23 20:02:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2023-11-23 20:02:36,724 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2023-11-23 20:02:36,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:02:36,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:02:36,821 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:02:36,826 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:02:37,115 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:02:37,149 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:02:37,150 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:02:37,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:37 BoogieIcfgContainer [2023-11-23 20:02:37,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:02:37,162 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:02:37,162 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:02:37,176 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:02:37,177 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:37" (1/1) ... [2023-11-23 20:02:37,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:02:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:37,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 38 states and 43 transitions. [2023-11-23 20:02:37,292 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-11-23 20:02:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:02:37,295 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:37,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:02:37,558 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 20:02:37,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:02:37,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 37 states and 42 transitions. [2023-11-23 20:02:37,609 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-11-23 20:02:37,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:02:37,614 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:02:37,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:02:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:37,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:02:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:37,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:02:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:02:37,681 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:02:37,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:02:37 ImpRootNode [2023-11-23 20:02:37,709 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:02:37,710 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:02:37,710 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:02:37,711 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:02:37,712 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:37" (3/4) ... [2023-11-23 20:02:37,713 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 20:02:37,759 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:02:37,760 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:02:37,761 INFO L158 Benchmark]: Toolchain (without parser) took 1521.23ms. Allocated memory is still 151.0MB. Free memory was 103.8MB in the beginning and 63.0MB in the end (delta: 40.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-23 20:02:37,762 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 151.0MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:02:37,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.90ms. Allocated memory is still 151.0MB. Free memory was 103.8MB in the beginning and 94.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:02:37,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.39ms. Allocated memory is still 151.0MB. Free memory was 94.0MB in the beginning and 92.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:02:37,765 INFO L158 Benchmark]: Boogie Preprocessor took 32.81ms. Allocated memory is still 151.0MB. Free memory was 92.4MB in the beginning and 91.5MB in the end (delta: 895.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:02:37,766 INFO L158 Benchmark]: RCFGBuilder took 532.70ms. Allocated memory is still 151.0MB. Free memory was 91.5MB in the beginning and 80.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:02:37,767 INFO L158 Benchmark]: CodeCheck took 547.48ms. Allocated memory is still 151.0MB. Free memory was 80.1MB in the beginning and 64.6MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:02:37,768 INFO L158 Benchmark]: Witness Printer took 49.98ms. Allocated memory is still 151.0MB. Free memory was 64.6MB in the beginning and 63.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:02:37,772 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 3 procedures, 38 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 6 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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: 35]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); [L26] int y = __VERIFIER_nondet_int(); [L27] int z = __VERIFIER_nondet_int(); [L28] CALL random() [L33] int x = __VERIFIER_nondet_int(); [L34] COND TRUE x < 0 VAL [x=-2147483648] [L35] -x VAL [x=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 151.0MB. Free memory is still 122.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.90ms. Allocated memory is still 151.0MB. Free memory was 103.8MB in the beginning and 94.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.39ms. Allocated memory is still 151.0MB. Free memory was 94.0MB in the beginning and 92.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.81ms. Allocated memory is still 151.0MB. Free memory was 92.4MB in the beginning and 91.5MB in the end (delta: 895.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 532.70ms. Allocated memory is still 151.0MB. Free memory was 91.5MB in the beginning and 80.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 547.48ms. Allocated memory is still 151.0MB. Free memory was 80.1MB in the beginning and 64.6MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 49.98ms. Allocated memory is still 151.0MB. Free memory was 64.6MB in the beginning and 63.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-23 20:02:37,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecc5fcda-29ff-4f2f-b122-4b01feb66209/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)