./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.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_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/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_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/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_0fb97adf-cd88-40de-b4fa-036ea943df1e/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 f50c7bc2857aa84cb02200a831151d15e1603828dabc8b6cfed5e5d60ae2ee71 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:25:00,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:25:00,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 23:25:00,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:25:00,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:25:00,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:25:00,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:25:00,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:25:00,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:25:00,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:25:00,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:25:00,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:25:00,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:25:00,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:25:00,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:25:00,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:25:00,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:25:00,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:25:00,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:25:00,234 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:25:00,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:25:00,234 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:25:00,234 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:25:00,234 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:25:00,234 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:25:00,234 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:25:00,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:25:00,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:25:00,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:25:00,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:25:00,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:25:00,235 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:25:00,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:25:00,235 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_0fb97adf-cd88-40de-b4fa-036ea943df1e/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 -> f50c7bc2857aa84cb02200a831151d15e1603828dabc8b6cfed5e5d60ae2ee71 [2024-12-05 23:25:00,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:25:00,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:25:00,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:25:00,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:25:00,509 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:25:00,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c [2024-12-05 23:25:03,232 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/data/d698c7861/a22ac965bc5c409c842fce5eeadccde6/FLAGf22229b66 [2024-12-05 23:25:03,440 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:25:03,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c [2024-12-05 23:25:03,448 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/data/d698c7861/a22ac965bc5c409c842fce5eeadccde6/FLAGf22229b66 [2024-12-05 23:25:03,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/data/d698c7861/a22ac965bc5c409c842fce5eeadccde6 [2024-12-05 23:25:03,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:25:03,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:25:03,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:25:03,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:25:03,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:25:03,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b39f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03, skipping insertion in model container [2024-12-05 23:25:03,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,491 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:25:03,637 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_0fb97adf-cd88-40de-b4fa-036ea943df1e/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c[588,601] [2024-12-05 23:25:03,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:25:03,674 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:25:03,687 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_0fb97adf-cd88-40de-b4fa-036ea943df1e/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c[588,601] [2024-12-05 23:25:03,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:25:03,714 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:25:03,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03 WrapperNode [2024-12-05 23:25:03,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:25:03,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:25:03,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:25:03,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:25:03,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,746 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2024-12-05 23:25:03,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:25:03,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:25:03,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:25:03,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:25:03,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,755 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,760 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,760 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,767 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:25:03,768 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:25:03,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:25:03,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:25:03,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:25:03" (1/1) ... [2024-12-05 23:25:03,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:25:03,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:25:03,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:25:03,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:25:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:25:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:25:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:25:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:25:03,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 23:25:03,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 23:25:03,901 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:25:03,903 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:25:04,042 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-12-05 23:25:04,042 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:25:04,061 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:25:04,061 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:25:04,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:25:04 BoogieIcfgContainer [2024-12-05 23:25:04,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:25:04,062 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:25:04,062 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:25:04,070 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:25:04,071 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:25:04" (1/1) ... [2024-12-05 23:25:04,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:25:04,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2024-12-05 23:25:04,122 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2024-12-05 23:25:04,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 23:25:04,123 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:04,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:25:04,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:04,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2024-12-05 23:25:04,250 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2024-12-05 23:25:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 23:25:04,251 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:04,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:25:04,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:04,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 28 states and 50 transitions. [2024-12-05 23:25:04,551 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 50 transitions. [2024-12-05 23:25:04,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 23:25:04,554 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:04,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:04,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:25:04,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:04,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 30 states and 53 transitions. [2024-12-05 23:25:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 53 transitions. [2024-12-05 23:25:04,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 23:25:04,841 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:04,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:04,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-05 23:25:04,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:05,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:25:05,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 61 transitions. [2024-12-05 23:25:05,414 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions. [2024-12-05 23:25:05,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-05 23:25:05,415 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:05,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:05,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-05 23:25:05,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-05 23:25:06,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:06,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 72 transitions. [2024-12-05 23:25:06,079 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 72 transitions. [2024-12-05 23:25:06,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-05 23:25:06,080 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:06,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:06,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 23:25:06,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:06,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-05 23:25:06,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:06,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 41 states and 77 transitions. [2024-12-05 23:25:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 77 transitions. [2024-12-05 23:25:06,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-05 23:25:06,444 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:06,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:06,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-05 23:25:06,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-05 23:25:06,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 42 states and 80 transitions. [2024-12-05 23:25:06,631 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 80 transitions. [2024-12-05 23:25:06,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-05 23:25:06,632 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:06,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-12-05 23:25:07,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:07,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 43 states and 77 transitions. [2024-12-05 23:25:07,233 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 77 transitions. [2024-12-05 23:25:07,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-05 23:25:07,234 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:07,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:07,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-05 23:25:07,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-05 23:25:07,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:07,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 46 states and 87 transitions. [2024-12-05 23:25:07,577 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 87 transitions. [2024-12-05 23:25:07,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-05 23:25:07,579 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:07,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:07,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 23:25:07,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:07,915 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-05 23:25:08,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:08,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 51 states and 98 transitions. [2024-12-05 23:25:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 98 transitions. [2024-12-05 23:25:08,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-05 23:25:08,622 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:08,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:08,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-05 23:25:08,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:08,977 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 11 proven. 20 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-05 23:25:09,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 53 states and 102 transitions. [2024-12-05 23:25:09,323 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 102 transitions. [2024-12-05 23:25:09,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-05 23:25:09,324 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:09,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:09,503 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-05 23:25:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 61 states and 117 transitions. [2024-12-05 23:25:10,346 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 117 transitions. [2024-12-05 23:25:10,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-05 23:25:10,346 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:10,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:10,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-05 23:25:10,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:10,429 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-05 23:25:10,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 64 states and 125 transitions. [2024-12-05 23:25:10,620 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 125 transitions. [2024-12-05 23:25:10,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-05 23:25:10,621 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:10,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:10,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-05 23:25:10,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:11,065 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-12-05 23:25:11,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:11,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 69 states and 134 transitions. [2024-12-05 23:25:11,904 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 134 transitions. [2024-12-05 23:25:11,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-05 23:25:11,905 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:11,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:11,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 23:25:11,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-05 23:25:12,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:12,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 71 states and 135 transitions. [2024-12-05 23:25:12,444 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 135 transitions. [2024-12-05 23:25:12,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-05 23:25:12,445 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:12,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:12,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 23:25:12,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-05 23:25:12,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:12,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 73 states and 139 transitions. [2024-12-05 23:25:12,681 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 139 transitions. [2024-12-05 23:25:12,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-12-05 23:25:12,682 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:12,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:12,720 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-05 23:25:12,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:12,871 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-05 23:25:13,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:13,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 74 states and 141 transitions. [2024-12-05 23:25:13,348 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 141 transitions. [2024-12-05 23:25:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-05 23:25:13,349 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:13,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 29 proven. 13 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-12-05 23:25:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:13,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 75 states and 142 transitions. [2024-12-05 23:25:13,729 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 142 transitions. [2024-12-05 23:25:13,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-05 23:25:13,729 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:13,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:13,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-05 23:25:13,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:13,887 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-05 23:25:14,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:14,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 76 states and 146 transitions. [2024-12-05 23:25:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 146 transitions. [2024-12-05 23:25:14,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-05 23:25:14,114 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:14,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:14,330 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-12-05 23:25:16,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:16,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 78 states and 149 transitions. [2024-12-05 23:25:16,508 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 149 transitions. [2024-12-05 23:25:16,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-05 23:25:16,510 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:16,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:16,611 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 39 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-12-05 23:25:16,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:16,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 78 states and 148 transitions. [2024-12-05 23:25:16,913 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 148 transitions. [2024-12-05 23:25:16,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-05 23:25:16,914 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:16,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:16,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-05 23:25:16,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-05 23:25:19,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 86 states and 168 transitions. [2024-12-05 23:25:19,232 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 168 transitions. [2024-12-05 23:25:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-12-05 23:25:19,234 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:19,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:19,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-05 23:25:19,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-05 23:25:20,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:20,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 81 states and 156 transitions. [2024-12-05 23:25:20,130 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 156 transitions. [2024-12-05 23:25:20,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-05 23:25:20,131 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:20,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 33 proven. 5 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-05 23:25:22,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:22,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 95 states and 184 transitions. [2024-12-05 23:25:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 184 transitions. [2024-12-05 23:25:22,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-05 23:25:22,018 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:22,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 33 proven. 5 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-05 23:25:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:25:22,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 47 states and 81 transitions. [2024-12-05 23:25:22,691 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 81 transitions. [2024-12-05 23:25:22,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-05 23:25:22,692 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:25:22,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:25:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:25:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:25:22,724 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:25:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:25:22,755 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 26 iterations. [2024-12-05 23:25:22,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:25:22 ImpRootNode [2024-12-05 23:25:22,782 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:25:22,782 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:25:22,782 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:25:22,783 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:25:22,783 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:25:04" (3/4) ... [2024-12-05 23:25:22,784 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 23:25:22,824 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 41. [2024-12-05 23:25:22,885 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 23:25:22,885 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 23:25:22,885 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:25:22,886 INFO L158 Benchmark]: Toolchain (without parser) took 19418.87ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 117.0MB in the beginning and 101.9MB in the end (delta: 15.1MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2024-12-05 23:25:22,886 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:25:22,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.01ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 105.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:25:22,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.48ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:25:22,887 INFO L158 Benchmark]: Boogie Preprocessor took 19.88ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 103.5MB in the end (delta: 675.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:25:22,888 INFO L158 Benchmark]: RCFGBuilder took 293.84ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 91.0MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:25:22,888 INFO L158 Benchmark]: CodeCheck took 18719.58ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 91.0MB in the beginning and 108.2MB in the end (delta: -17.2MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-12-05 23:25:22,889 INFO L158 Benchmark]: Witness Printer took 102.85ms. Allocated memory is still 176.2MB. Free memory was 108.2MB in the beginning and 101.9MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:25:22,890 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, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.7s, OverallIterations: 26, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1800 SdHoareTripleChecker+Valid, 14.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 586 mSDsluCounter, 1436 SdHoareTripleChecker+Invalid, 12.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150 mSDsCounter, 2853 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8456 IncrementalHoareTripleChecker+Invalid, 11309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2853 mSolverCounterUnsat, 1286 mSDtfsCounter, 8456 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8578 GetRequests, 8096 SyntacticMatches, 222 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40476 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1083 NumberOfCodeBlocks, 1083 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 990 ConstructedInterpolants, 0 QuantifiedInterpolants, 3087 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1686 ConjunctsInSsa, 193 ConjunctsInUnsatCore, 25 InterpolantComputations, 10 PerfectInterpolantSequences, 2592/2729 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: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] short a; [L25] long long n, x, y, z; [L26] a = __VERIFIER_nondet_ushort() [L28] n = 0 [L29] x = 0 [L30] y = 1 [L31] z = 6 VAL [a=2, counter=0, n=0, x=0, y=1, z=6] [L33] EXPR counter++ VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L33] COND TRUE counter++<2 [L34] CALL __VERIFIER_assert(z == 6 * n + 6) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L34] RET __VERIFIER_assert(z == 6 * n + 6) VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L35] CALL __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L35] RET __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L36] CALL __VERIFIER_assert(x == n * n * n) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L36] RET __VERIFIER_assert(x == n * n * n) VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L37] CALL __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L37] RET __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L38] CALL __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [\old(cond)=1, counter=1] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=1] [L38] RET __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [a=2, counter=1, n=0, x=0, y=1, z=6] [L39] COND FALSE !(!(n <= a)) [L42] n = n + 1 [L43] x = x + y [L44] y = y + z [L45] z = z + 6 VAL [a=2, counter=1, n=1, x=1, y=7, z=12] [L33] EXPR counter++ VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L33] COND TRUE counter++<2 [L34] CALL __VERIFIER_assert(z == 6 * n + 6) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L34] RET __VERIFIER_assert(z == 6 * n + 6) VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L35] CALL __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L35] RET __VERIFIER_assert(y == 3 * n * n + 3 * n + 1) VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L36] CALL __VERIFIER_assert(x == n * n * n) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L36] RET __VERIFIER_assert(x == n * n * n) VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L37] CALL __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L37] RET __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0) VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L38] CALL __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [\old(cond)=1, counter=2] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=2] [L38] RET __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0) VAL [a=2, counter=2, n=1, x=1, y=7, z=12] [L39] COND FALSE !(!(n <= a)) [L42] n = n + 1 [L43] x = x + y [L44] y = y + z [L45] z = z + 6 VAL [a=2, counter=2, n=2, x=8, y=19, z=18] [L33] EXPR counter++ VAL [a=2, counter=3, n=2, x=8, y=19, z=18] [L33] COND FALSE !(counter++<2) [L48] CALL __VERIFIER_assert(z == 6*n + 6) VAL [\old(cond)=1, counter=3] [L15] COND FALSE !(!(cond)) VAL [\old(cond)=1, counter=3] [L48] RET __VERIFIER_assert(z == 6*n + 6) VAL [a=2, counter=3, n=2, x=8, y=19, z=18] [L49] CALL __VERIFIER_assert(6*a*x - x*z + 12*x == 0) VAL [\old(cond)=0, counter=3] [L15] COND TRUE !(cond) VAL [\old(cond)=0, counter=3] [L17] reach_error() VAL [\old(cond)=0, counter=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.01ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 105.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.48ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.88ms. Allocated memory is still 142.6MB. Free memory was 104.1MB in the beginning and 103.5MB in the end (delta: 675.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 293.84ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 91.0MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 18719.58ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 91.0MB in the beginning and 108.2MB in the end (delta: -17.2MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 102.85ms. Allocated memory is still 176.2MB. Free memory was 108.2MB in the beginning and 101.9MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-05 23:25:22,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fb97adf-cd88-40de-b4fa-036ea943df1e/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