./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.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_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/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_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/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_eda3803f-7d96-4d22-bdee-9f760aa2fd82/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 1b50d522769b95768e9038f61a48a3b927d40a7b91b44cb14af45fcd08759b69 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:08:41,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:08:41,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 02:08:41,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:08:41,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:08:41,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:08:41,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:08:41,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:08:41,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:08:41,420 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:08:41,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:08:41,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:08:41,420 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 02:08:41,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:08:41,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 02:08:41,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:08:41,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:08:41,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:08:41,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:08:41,421 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 02:08:41,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:08:41,421 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:08:41,421 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:08:41,421 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:08:41,421 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:08:41,422 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:08:41,422 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:08:41,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:08:41,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:08:41,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:08:41,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:08:41,422 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:08:41,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:08:41,422 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_eda3803f-7d96-4d22-bdee-9f760aa2fd82/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 -> 1b50d522769b95768e9038f61a48a3b927d40a7b91b44cb14af45fcd08759b69 [2024-12-06 02:08:41,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:08:41,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:08:41,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:08:41,656 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:08:41,656 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:08:41,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c [2024-12-06 02:08:44,329 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/data/e9bd1e7a4/f84b57f86e8b4c71883d185cde35c3cc/FLAG078d6fd1c [2024-12-06 02:08:44,513 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:08:44,514 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c [2024-12-06 02:08:44,521 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/data/e9bd1e7a4/f84b57f86e8b4c71883d185cde35c3cc/FLAG078d6fd1c [2024-12-06 02:08:44,535 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/data/e9bd1e7a4/f84b57f86e8b4c71883d185cde35c3cc [2024-12-06 02:08:44,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:08:44,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:08:44,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:08:44,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:08:44,557 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:08:44,558 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94a4dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44, skipping insertion in model container [2024-12-06 02:08:44,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:08:44,709 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_eda3803f-7d96-4d22-bdee-9f760aa2fd82/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c[454,467] [2024-12-06 02:08:44,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:08:44,730 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:08:44,739 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_eda3803f-7d96-4d22-bdee-9f760aa2fd82/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c[454,467] [2024-12-06 02:08:44,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:08:44,756 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:08:44,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44 WrapperNode [2024-12-06 02:08:44,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:08:44,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:08:44,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:08:44,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:08:44,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,784 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2024-12-06 02:08:44,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:08:44,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:08:44,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:08:44,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:08:44,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,795 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:08:44,802 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:08:44,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:08:44,802 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:08:44,803 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:08:44" (1/1) ... [2024-12-06 02:08:44,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:08:44,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:08:44,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:08:44,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:08:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:08:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:08:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:08:44,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:08:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 02:08:44,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 02:08:44,899 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:08:44,901 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:08:44,983 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-06 02:08:44,984 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:08:45,017 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:08:45,018 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 02:08:45,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:08:45 BoogieIcfgContainer [2024-12-06 02:08:45,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:08:45,019 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:08:45,019 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:08:45,026 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:08:45,026 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:08:45" (1/1) ... [2024-12-06 02:08:45,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:08:45,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:08:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2024-12-06 02:08:45,080 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2024-12-06 02:08:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 02:08:45,082 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:08:45,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:08:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:08:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:08:45,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-06 02:08:45,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:08:45,273 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 02:08:45,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:08:45,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2024-12-06 02:08:45,348 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2024-12-06 02:08:45,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 02:08:45,351 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:08:45,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:08:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:08:45,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:08:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:08:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2024-12-06 02:08:45,845 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-12-06 02:08:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 02:08:45,845 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:08:45,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:08:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:08:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:08:45,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-06 02:08:45,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:08:45,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 02:08:46,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:08:46,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2024-12-06 02:08:46,181 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2024-12-06 02:08:46,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 02:08:46,182 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:08:46,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:08:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:08:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:08:46,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-06 02:08:46,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:08:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 02:08:46,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:08:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2024-12-06 02:08:46,465 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2024-12-06 02:08:46,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 02:08:46,465 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:08:46,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:08:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:08:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:08:46,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-06 02:08:46,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:08:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-06 02:08:46,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:08:46,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 30 transitions. [2024-12-06 02:08:46,823 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2024-12-06 02:08:46,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-06 02:08:46,824 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:08:46,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:08:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:08:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:08:46,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-06 02:08:46,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:08:46,964 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-06 02:08:47,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:08:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2024-12-06 02:08:47,227 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2024-12-06 02:08:47,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-12-06 02:08:47,228 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:08:47,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:08:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 02:08:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:08:47,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-06 02:08:47,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:08:47,373 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 10 proven. 25 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-06 02:08:47,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:08:47,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2024-12-06 02:08:47,673 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-12-06 02:08:47,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-06 02:08:47,674 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:08:47,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:08:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:08:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 38 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-06 02:08:49,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:08:49,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 20 states and 30 transitions. [2024-12-06 02:08:49,181 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2024-12-06 02:08:49,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 02:08:49,182 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2024-12-06 02:08:49,187 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 02:08:49,336 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 02:08:49,336 INFO L77 FloydHoareUtils]: At program point L27-2(lines 27 36) the Hoare annotation is: true [2024-12-06 02:08:49,337 INFO L77 FloydHoareUtils]: At program point L27-3(lines 27 36) the Hoare annotation is: (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) [2024-12-06 02:08:49,337 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 02:08:49,337 INFO L77 FloydHoareUtils]: At program point L28(lines 27 36) the Hoare annotation is: (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) [2024-12-06 02:08:49,337 INFO L77 FloydHoareUtils]: At program point L37(line 37) the Hoare annotation is: true [2024-12-06 02:08:49,337 INFO L77 FloydHoareUtils]: At program point L11(lines 11 12) the Hoare annotation is: true [2024-12-06 02:08:49,337 INFO L77 FloydHoareUtils]: At program point L10(lines 10 13) the Hoare annotation is: (or (= __VERIFIER_assert_~cond 0) (and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 1))) [2024-12-06 02:08:49,337 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 9 15) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-12-06 02:08:49,337 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: (not (and (not (= |__VERIFIER_assert_#in~cond| 0)) (not (= |__VERIFIER_assert_#in~cond| 1)))) [2024-12-06 02:08:49,337 INFO L77 FloydHoareUtils]: At program point L10-2(lines 9 15) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-12-06 02:08:49,338 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2024-12-06 02:08:49,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:08:49 ImpRootNode [2024-12-06 02:08:49,351 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:08:49,352 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:08:49,352 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:08:49,352 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:08:49,352 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:08:45" (3/4) ... [2024-12-06 02:08:49,354 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 02:08:49,357 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-06 02:08:49,360 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-06 02:08:49,360 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-06 02:08:49,360 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 02:08:49,361 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 02:08:49,425 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 02:08:49,426 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 02:08:49,426 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:08:49,426 INFO L158 Benchmark]: Toolchain (without parser) took 4875.41ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 101.2MB in the end (delta: 18.3MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-12-06 02:08:49,426 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:08:49,427 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.29ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 108.5MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:08:49,427 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.02ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 107.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:08:49,427 INFO L158 Benchmark]: Boogie Preprocessor took 16.19ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.6MB in the end (delta: 770.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:08:49,427 INFO L158 Benchmark]: RCFGBuilder took 216.47ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 95.3MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 02:08:49,428 INFO L158 Benchmark]: CodeCheck took 4332.59ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 105.2MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:08:49,428 INFO L158 Benchmark]: Witness Printer took 73.83ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 101.2MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:08:49,430 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, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 352 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 696 IncrementalHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 352 mSolverCounterUnsat, 68 mSDtfsCounter, 696 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1196 GetRequests, 1065 SyntacticMatches, 35 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3410 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 490 SizeOfPredicates, 6 NumberOfNonLiveVariables, 474 ConjunctsInSsa, 113 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 199/275 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 - PositiveResult [Line: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((cond == 0) || (cond == 1)) Ensures: (cond != 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.29ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 108.5MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.02ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 107.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.19ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 106.6MB in the end (delta: 770.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.47ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 95.3MB in the end (delta: 11.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 4332.59ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 105.2MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 73.83ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 101.2MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 02:08:49,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3803f-7d96-4d22-bdee-9f760aa2fd82/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 Result: TRUE