./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 563b7b68cc9c71f6c32d6693c1b275445975396b9300286e8e67b320f2f5679b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:47:50,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:47:50,523 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 02:47:50,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:47:50,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:47:50,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:47:50,557 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:47:50,558 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:47:50,558 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:47:50,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:47:50,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:47:50,559 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:47:50,559 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:47:50,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:47:50,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:47:50,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:47:50,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:47:50,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:47:50,560 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:47:50,561 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:47:50,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:47:50,561 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:47:50,561 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:47:50,561 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:47:50,561 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:47:50,562 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:47:50,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:47:50,562 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:47:50,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:47:50,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:47:50,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:47:50,563 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:47:50,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:47:50,563 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_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3 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 ! call(reach_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 563b7b68cc9c71f6c32d6693c1b275445975396b9300286e8e67b320f2f5679b [2024-11-25 02:47:51,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:47:51,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:47:51,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:47:51,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:47:51,043 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:47:51,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2024-11-25 02:47:54,819 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/data/07a443da7/c7f3cb9447274778a554f9fbc7a4214f/FLAG21a25cff7 [2024-11-25 02:47:55,105 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:47:55,106 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c [2024-11-25 02:47:55,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/data/07a443da7/c7f3cb9447274778a554f9fbc7a4214f/FLAG21a25cff7 [2024-11-25 02:47:55,132 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/data/07a443da7/c7f3cb9447274778a554f9fbc7a4214f [2024-11-25 02:47:55,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:47:55,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:47:55,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:47:55,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:47:55,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:47:55,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5651e1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55, skipping insertion in model container [2024-11-25 02:47:55,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,164 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:47:55,342 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[860,873] [2024-11-25 02:47:55,347 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[916,929] [2024-11-25 02:47:55,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:47:55,361 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:47:55,378 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[860,873] [2024-11-25 02:47:55,379 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/sv-benchmarks/c/loop-invariants/linear-inequality-inv-b.c[916,929] [2024-11-25 02:47:55,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:47:55,399 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:47:55,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55 WrapperNode [2024-11-25 02:47:55,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:47:55,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:47:55,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:47:55,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:47:55,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,448 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2024-11-25 02:47:55,448 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:47:55,449 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:47:55,449 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:47:55,449 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:47:55,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,470 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,485 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:47:55,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:47:55,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:47:55,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:47:55,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:47:55,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:47:55,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:47:55,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:47:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:47:55,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:47:55,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:47:55,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:47:55,682 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:47:55,685 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:47:55,874 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-25 02:47:55,874 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:47:55,924 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:47:55,924 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 02:47:55,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:47:55 BoogieIcfgContainer [2024-11-25 02:47:55,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:47:55,926 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:47:55,927 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:47:55,941 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:47:55,942 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:47:55" (1/1) ... [2024-11-25 02:47:55,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:47:56,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:47:56,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2024-11-25 02:47:56,025 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2024-11-25 02:47:56,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 02:47:56,028 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:47:56,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:47:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:47:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:47:56,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:47:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-25 02:47:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-25 02:47:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-25 02:47:56,480 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:47:56,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:47:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:47:56,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:47:57,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:47:57,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2024-11-25 02:47:57,129 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-11-25 02:47:57,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 02:47:57,129 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:47:57,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:47:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:47:57,171 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:47:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:47:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:47:57,271 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:47:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:47:57,299 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-11-25 02:47:57,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:47:57 ImpRootNode [2024-11-25 02:47:57,339 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:47:57,340 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:47:57,341 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:47:57,342 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:47:57,344 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:47:55" (3/4) ... [2024-11-25 02:47:57,345 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 02:47:57,416 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-11-25 02:47:57,484 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 02:47:57,484 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 02:47:57,484 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:47:57,486 INFO L158 Benchmark]: Toolchain (without parser) took 2349.45ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 81.0MB in the end (delta: 11.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-11-25 02:47:57,486 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:47:57,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.77ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 81.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:47:57,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.57ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.1MB in the end (delta: 997.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:47:57,489 INFO L158 Benchmark]: Boogie Preprocessor took 41.99ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.4MB in the end (delta: 725.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:47:57,489 INFO L158 Benchmark]: RCFGBuilder took 433.81ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 69.1MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:47:57,490 INFO L158 Benchmark]: CodeCheck took 1412.50ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 85.7MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:47:57,490 INFO L158 Benchmark]: Witness Printer took 144.89ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 81.0MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:47:57,495 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, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 10 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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: 25]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] unsigned char n = __VERIFIER_nondet_uchar(); [L13] COND FALSE !(n == 0) [L16] unsigned char v = 0; [L17] unsigned char s = 0; [L18] unsigned int i = 0; VAL [i=0, n=2, s=0, v=0] [L19] COND TRUE i < n [L20] v = __VERIFIER_nondet_uchar() [L21] s += v [L22] ++i VAL [i=1, n=2, s=255, v=255] [L19] COND TRUE i < n [L20] v = __VERIFIER_nondet_uchar() [L21] s += v [L22] ++i VAL [i=2, n=2, s=256, v=1] [L19] COND FALSE !(i < n) VAL [s=256, v=1] [L24] COND TRUE s < v [L25] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.77ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 81.1MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.57ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.1MB in the end (delta: 997.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.99ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.4MB in the end (delta: 725.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 433.81ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 69.1MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1412.50ms. Allocated memory is still 117.4MB. Free memory was 69.1MB in the beginning and 85.7MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 144.89ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 81.0MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 02:47:57,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e211d73-cf5e-4c10-a9a6-1c602a8167a9/bin/ukojak-verify-ENZ3QT5qd3/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE