./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound1.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_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/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_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b --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 5a7fa473b022aa2e23bff7f5f7b8857d51e8b48cb53169d649271e1a03b0ebc0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:54:41,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:54:41,445 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 02:54:41,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:54:41,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:54:41,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:54:41,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:54:41,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:54:41,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:54:41,470 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:54:41,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:54:41,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:54:41,470 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:54:41,471 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:54:41,471 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:54:41,472 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:54:41,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:54:41,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:54:41,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:54:41,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:54:41,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:54:41,472 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:54:41,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:54:41,472 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_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/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 ! 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 -> 5a7fa473b022aa2e23bff7f5f7b8857d51e8b48cb53169d649271e1a03b0ebc0 [2024-12-06 02:54:41,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:54:41,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:54:41,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:54:41,721 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:54:41,721 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:54:41,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound1.c [2024-12-06 02:54:44,316 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/data/d2478efc6/6394d44bf34748b0a7bebcff2ba1c336/FLAGda3a106b5 [2024-12-06 02:54:44,501 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:54:44,502 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound1.c [2024-12-06 02:54:44,508 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/data/d2478efc6/6394d44bf34748b0a7bebcff2ba1c336/FLAGda3a106b5 [2024-12-06 02:54:44,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/data/d2478efc6/6394d44bf34748b0a7bebcff2ba1c336 [2024-12-06 02:54:44,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:54:44,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:54:44,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:54:44,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:54:44,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:54:44,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec5912d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44, skipping insertion in model container [2024-12-06 02:54:44,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,550 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:54:44,656 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_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound1.c[458,471] [2024-12-06 02:54:44,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:54:44,679 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:54:44,687 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_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound1.c[458,471] [2024-12-06 02:54:44,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:54:44,704 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:54:44,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44 WrapperNode [2024-12-06 02:54:44,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:54:44,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:54:44,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:54:44,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:54:44,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,726 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2024-12-06 02:54:44,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:54:44,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:54:44,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:54:44,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:54:44,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,733 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,736 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,740 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:54:44,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:54:44,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:54:44,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:54:44,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:54:44,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:54:44,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:54:44,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:54:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:54:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:54:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:54:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:54:44,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 02:54:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 02:54:44,835 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:54:44,837 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:54:44,937 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-06 02:54:44,937 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:54:44,955 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:54:44,955 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 02:54:44,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:54:44 BoogieIcfgContainer [2024-12-06 02:54:44,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:54:44,956 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:54:44,956 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:54:44,964 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:54:44,964 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:54:44" (1/1) ... [2024-12-06 02:54:44,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:54:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:45,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2024-12-06 02:54:45,017 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2024-12-06 02:54:45,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 02:54:45,022 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:45,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:45,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2024-12-06 02:54:45,139 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-12-06 02:54:45,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 02:54:45,139 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:45,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:54:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:45,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 02:54:45,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:54:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:45,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:45,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2024-12-06 02:54:45,361 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2024-12-06 02:54:45,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 02:54:45,362 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:45,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:45,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:45,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2024-12-06 02:54:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2024-12-06 02:54:45,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 02:54:45,653 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:45,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:54:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:45,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-06 02:54:45,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:54:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:45,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 38 transitions. [2024-12-06 02:54:45,765 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2024-12-06 02:54:45,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 02:54:45,766 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:45,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:54:45,916 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:54:46,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:54:46,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 20 states and 26 transitions. [2024-12-06 02:54:46,405 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2024-12-06 02:54:46,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 02:54:46,405 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:54:46,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:54:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:54:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:54:46,436 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:54:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:54:46,462 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-12-06 02:54:46,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:54:46 ImpRootNode [2024-12-06 02:54:46,487 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:54:46,487 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:54:46,487 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:54:46,487 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:54:46,488 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:54:44" (3/4) ... [2024-12-06 02:54:46,489 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 02:54:46,525 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 9. [2024-12-06 02:54:46,566 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 02:54:46,566 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 02:54:46,566 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:54:46,567 INFO L158 Benchmark]: Toolchain (without parser) took 2036.06ms. Allocated memory is still 142.6MB. Free memory was 119.6MB in the beginning and 57.4MB in the end (delta: 62.1MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2024-12-06 02:54:46,567 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:54:46,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.56ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 108.3MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:54:46,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.39ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 107.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:54:46,568 INFO L158 Benchmark]: Boogie Preprocessor took 15.84ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 106.4MB in the end (delta: 734.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:54:46,568 INFO L158 Benchmark]: RCFGBuilder took 212.12ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 95.8MB in the end (delta: 10.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 02:54:46,568 INFO L158 Benchmark]: CodeCheck took 1530.57ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 62.0MB in the end (delta: 33.8MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-12-06 02:54:46,569 INFO L158 Benchmark]: Witness Printer took 79.03ms. Allocated memory is still 142.6MB. Free memory was 62.0MB in the beginning and 57.4MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:54:46,570 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, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 139 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 112 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 426 GetRequests, 378 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 2 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 5/7 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: 12]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int counter = 0; [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L23] y = 0 [L24] x = 0 [L25] c = 0 VAL [c=0, counter=0, k=2, x=0, y=0] [L27] EXPR counter++ VAL [c=0, counter=1, k=2, x=0, y=0] [L27] COND TRUE counter++<1 [L28] CALL __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [\old(cond)=1, counter=1] [L10] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L28] RET __VERIFIER_assert(4*x - y*y*y*y - 2*y*y*y - y*y == 0) VAL [c=0, counter=1, k=2, x=0, y=0] [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y * y + x VAL [c=1, counter=1, k=2, x=1, y=1] [L27] EXPR counter++ VAL [c=1, counter=2, k=2, x=1, y=1] [L27] COND FALSE !(counter++<1) [L37] CALL __VERIFIER_assert(k*y - (y*y) == 0) VAL [\old(cond)=0, counter=2] [L10] COND TRUE !(cond) VAL [\old(cond)=0, counter=2] [L12] reach_error() VAL [\old(cond)=0, counter=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.56ms. Allocated memory is still 142.6MB. Free memory was 119.4MB in the beginning and 108.3MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.39ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 107.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.84ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 106.4MB in the end (delta: 734.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 212.12ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 95.8MB in the end (delta: 10.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1530.57ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 62.0MB in the end (delta: 33.8MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Witness Printer took 79.03ms. Allocated memory is still 142.6MB. Free memory was 62.0MB in the beginning and 57.4MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 02:54:46,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a85d64bc-be1a-4dfd-98ed-0d45a8f39c86/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE