./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b --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 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:58:20,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:58:20,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 01:58:20,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:58:20,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:58:20,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:58:20,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:58:20,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:58:20,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:58:20,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:58:20,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:58:20,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:58:20,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:58:20,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:58:20,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:58:20,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:58:20,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:58:20,540 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:58:20,540 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:58:20,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:58:20,540 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:58:20,541 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:58:20,541 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:58:20,541 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:58:20,541 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:58:20,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:58:20,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:58:20,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:58:20,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:58:20,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:58:20,541 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:58:20,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:58:20,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b 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 -> 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 [2024-12-06 01:58:20,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:58:20,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:58:20,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:58:20,791 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:58:20,791 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:58:20,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-12-06 01:58:23,419 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/data/6e91f2ebf/36c39d42f9b74c9c8d4cc46bf36e65df/FLAGc2e83a00c [2024-12-06 01:58:23,704 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:58:23,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-12-06 01:58:23,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/data/6e91f2ebf/36c39d42f9b74c9c8d4cc46bf36e65df/FLAGc2e83a00c [2024-12-06 01:58:23,734 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/data/6e91f2ebf/36c39d42f9b74c9c8d4cc46bf36e65df [2024-12-06 01:58:23,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:58:23,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:58:23,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:58:23,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:58:23,742 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:58:23,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:58:23" (1/1) ... [2024-12-06 01:58:23,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdc064b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:23, skipping insertion in model container [2024-12-06 01:58:23,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:58:23" (1/1) ... [2024-12-06 01:58:23,775 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:58:24,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:58:24,383 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:58:24,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:58:24,557 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:58:24,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24 WrapperNode [2024-12-06 01:58:24,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:58:24,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:58:24,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:58:24,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:58:24,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,602 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-12-06 01:58:24,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:58:24,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:58:24,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:58:24,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:58:24,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,617 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,622 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:58:24,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:58:24,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:58:24,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:58:24,627 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:24" (1/1) ... [2024-12-06 01:58:24,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:58:24,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:58:24,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:58:24,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:58:24,676 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:58:24,677 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:58:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:58:24,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:58:24,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:58:24,787 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:58:24,789 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:58:24,955 INFO L? ?]: Removed 58 outVars from TransFormulas that were not future-live. [2024-12-06 01:58:24,955 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:58:25,115 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:58:25,115 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:58:25,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:58:25 BoogieIcfgContainer [2024-12-06 01:58:25,116 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:58:25,116 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:58:25,117 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:58:25,126 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:58:25,126 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:58:25" (1/1) ... [2024-12-06 01:58:25,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:58:25,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:58:25,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-12-06 01:58:25,179 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-12-06 01:58:25,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 01:58:25,183 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:58:25,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:58:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:58:25,388 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:58:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:58:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:58:25,510 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:58:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:58:25,546 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:58:25,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:58:25 ImpRootNode [2024-12-06 01:58:25,569 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:58:25,569 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:58:25,569 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:58:25,570 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:58:25,570 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:58:25" (3/4) ... [2024-12-06 01:58:25,572 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:58:25,573 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:58:25,574 INFO L158 Benchmark]: Toolchain (without parser) took 1836.83ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 62.8MB in the end (delta: 26.8MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2024-12-06 01:58:25,575 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:58:25,575 INFO L158 Benchmark]: CACSL2BoogieTranslator took 819.54ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 80.0MB in the end (delta: 9.4MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2024-12-06 01:58:25,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.79ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 77.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:58:25,576 INFO L158 Benchmark]: Boogie Preprocessor took 22.28ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 76.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:58:25,576 INFO L158 Benchmark]: RCFGBuilder took 490.17ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 39.4MB in the end (delta: 36.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-06 01:58:25,576 INFO L158 Benchmark]: CodeCheck took 452.20ms. Allocated memory is still 117.4MB. Free memory was 39.4MB in the beginning and 63.2MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:58:25,577 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 62.8MB in the end (delta: 352.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:58:25,579 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 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 6 NumberOfCodeBlocks, 6 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1552. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1566] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1566] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1552] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 819.54ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 80.0MB in the end (delta: 9.4MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.79ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 77.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.28ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 76.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 490.17ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 39.4MB in the end (delta: 36.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * CodeCheck took 452.20ms. Allocated memory is still 117.4MB. Free memory was 39.4MB in the beginning and 63.2MB in the end (delta: -23.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 62.8MB in the end (delta: 352.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:58:25,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b --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 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:58:27,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:58:27,546 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 01:58:27,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:58:27,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:58:27,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:58:27,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:58:27,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:58:27,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:58:27,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:58:27,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:58:27,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:58:27,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:58:27,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:58:27,573 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 01:58:27,573 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 01:58:27,573 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:58:27,573 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 01:58:27,573 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:58:27,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:58:27,573 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:58:27,573 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:58:27,573 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:58:27,573 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:58:27,574 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:58:27,574 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:58:27,574 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 01:58:27,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:58:27,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:58:27,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:58:27,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:58:27,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:58:27,574 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 01:58:27,574 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:58:27,574 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 01:58:27,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b 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 -> 2649b1239dfd4d32a381247ed4f3ea4d3759b9bf4f4dfb0870461a76ea95d255 [2024-12-06 01:58:27,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:58:27,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:58:27,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:58:27,824 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:58:27,824 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:58:27,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-12-06 01:58:30,512 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/data/7b0f5bf55/23539958ab414a1fbfafede90812dd8b/FLAG5284c0af2 [2024-12-06 01:58:30,771 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:58:30,771 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_bad.i [2024-12-06 01:58:30,789 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/data/7b0f5bf55/23539958ab414a1fbfafede90812dd8b/FLAG5284c0af2 [2024-12-06 01:58:31,057 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/data/7b0f5bf55/23539958ab414a1fbfafede90812dd8b [2024-12-06 01:58:31,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:58:31,060 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:58:31,061 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:58:31,061 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:58:31,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:58:31,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5477f554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31, skipping insertion in model container [2024-12-06 01:58:31,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:58:31,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:58:31,697 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:58:31,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:58:31,886 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:58:31,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31 WrapperNode [2024-12-06 01:58:31,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:58:31,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:58:31,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:58:31,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:58:31,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,927 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-12-06 01:58:31,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:58:31,928 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:58:31,928 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:58:31,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:58:31,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,946 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,954 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:58:31,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:58:31,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:58:31,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:58:31,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:58:31" (1/1) ... [2024-12-06 01:58:31,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:58:31,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:58:31,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:58:31,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:58:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:58:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:58:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:58:32,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:58:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:58:32,128 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:58:32,129 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:58:32,228 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-12-06 01:58:32,228 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:58:32,276 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:58:32,276 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:58:32,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:58:32 BoogieIcfgContainer [2024-12-06 01:58:32,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:58:32,278 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:58:32,278 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:58:32,287 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:58:32,287 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:58:32" (1/1) ... [2024-12-06 01:58:32,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:58:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:58:32,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-12-06 01:58:32,329 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-12-06 01:58:32,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 01:58:32,332 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:58:32,332 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:58:32,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:58:32,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:58:32,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 01:58:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:58:32,481 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:58:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:58:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:58:32,578 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:58:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:58:32,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 01:58:32,610 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:58:32,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:58:32 ImpRootNode [2024-12-06 01:58:32,633 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:58:32,633 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:58:32,634 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:58:32,634 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:58:32,634 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:58:32" (3/4) ... [2024-12-06 01:58:32,635 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 01:58:32,672 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 5. [2024-12-06 01:58:32,711 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:58:32,711 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:58:32,711 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:58:32,712 INFO L158 Benchmark]: Toolchain (without parser) took 1651.40ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 53.1MB in the end (delta: 14.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-12-06 01:58:32,712 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:58:32,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.33ms. Allocated memory is still 92.3MB. Free memory was 66.9MB in the beginning and 62.6MB in the end (delta: 4.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2024-12-06 01:58:32,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.47ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 60.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:58:32,713 INFO L158 Benchmark]: Boogie Preprocessor took 25.63ms. Allocated memory is still 92.3MB. Free memory was 60.0MB in the beginning and 58.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:58:32,713 INFO L158 Benchmark]: RCFGBuilder took 322.25ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 41.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:58:32,713 INFO L158 Benchmark]: CodeCheck took 355.35ms. Allocated memory is still 92.3MB. Free memory was 41.4MB in the beginning and 58.2MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:58:32,713 INFO L158 Benchmark]: Witness Printer took 77.60ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 53.1MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:58:32,715 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 2 procedures, 12 locations, 2 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, 6 NumberOfCodeBlocks, 6 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 1557]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1566] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1566] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] CALL CWE191_Integer_Underflow__int_rand_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1552] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] int dataCopy = data; [L1555] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.33ms. Allocated memory is still 92.3MB. Free memory was 66.9MB in the beginning and 62.6MB in the end (delta: 4.3MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.47ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 60.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.63ms. Allocated memory is still 92.3MB. Free memory was 60.0MB in the beginning and 58.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 322.25ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 41.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 355.35ms. Allocated memory is still 92.3MB. Free memory was 41.4MB in the beginning and 58.2MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 77.60ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 53.1MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 01:58:32,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6088dcc-19ca-48f7-9648-3e9bc491c528/bin/ukojak-verify-CZk0znPC7b/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)