./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/cohendiv-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/cohendiv-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 601ddeb38cc85433f6271611bfd2617c2fcbf2b89119dbe2c319aedc14aa3b17 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:08:54,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:08:55,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 03:08:55,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:08:55,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:08:55,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:08:55,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:08:55,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:08:55,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:08:55,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:08:55,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:08:55,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:08:55,040 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:08:55,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:08:55,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:08:55,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:08:55,042 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:08:55,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:08:55,043 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:08:55,043 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:08:55,044 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:08:55,044 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:08:55,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:08:55,045 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:08:55,046 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:08:55,046 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:08:55,046 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:08:55,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:08:55,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:08:55,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:08:55,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:08:55,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:08:55,066 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:08:55,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:08:55,066 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:08:55,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 601ddeb38cc85433f6271611bfd2617c2fcbf2b89119dbe2c319aedc14aa3b17 [2023-11-19 03:08:55,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:08:55,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:08:55,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:08:55,348 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:08:55,348 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:08:55,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench/cohendiv-ll.c [2023-11-19 03:08:58,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:08:58,643 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:08:58,643 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/sv-benchmarks/c/nla-digbench/cohendiv-ll.c [2023-11-19 03:08:58,651 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/data/e75cfe49a/d26f14aa19dd4929a8524c048ad03445/FLAG12af16c55 [2023-11-19 03:08:58,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/data/e75cfe49a/d26f14aa19dd4929a8524c048ad03445 [2023-11-19 03:08:58,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:08:58,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:08:58,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:08:58,687 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:08:58,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:08:58,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:08:58" (1/1) ... [2023-11-19 03:08:58,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f9782d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:58, skipping insertion in model container [2023-11-19 03:08:58,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:08:58" (1/1) ... [2023-11-19 03:08:58,723 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:08:58,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:08:58,953 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:08:58,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:08:59,000 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:08:59,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59 WrapperNode [2023-11-19 03:08:59,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:08:59,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:08:59,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:08:59,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:08:59,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,068 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2023-11-19 03:08:59,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:08:59,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:08:59,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:08:59,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:08:59,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,110 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:08:59,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:08:59,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:08:59,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:08:59,117 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:08:59,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:08:59,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:08:59,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d9d1eb8-3f12-45d2-a660-cab9f51185e0/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:08:59,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:08:59,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:08:59,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:08:59,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:08:59,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:08:59,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:08:59,276 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:08:59,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:08:59,581 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:08:59,634 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:08:59,635 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:08:59,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:08:59 BoogieIcfgContainer [2023-11-19 03:08:59,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:08:59,646 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:08:59,646 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:08:59,663 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:08:59,663 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:08:59" (1/1) ... [2023-11-19 03:08:59,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:08:59,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:08:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 76 states and 85 transitions. [2023-11-19 03:08:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2023-11-19 03:08:59,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:08:59,755 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:08:59,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:08:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:08:59,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:08:59,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:08:59,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:08:59,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:08:59,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 78 states and 87 transitions. [2023-11-19 03:08:59,936 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2023-11-19 03:08:59,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:08:59,936 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:08:59,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:08:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:08:59,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:08:59,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:08:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:08:59,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:08:59,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 79 states and 88 transitions. [2023-11-19 03:08:59,990 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2023-11-19 03:08:59,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:08:59,994 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:08:59,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:00,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:09:00,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:00,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:09:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 84 states and 96 transitions. [2023-11-19 03:09:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2023-11-19 03:09:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:09:00,252 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:00,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:00,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:09:00,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:00,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:09:00,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:00,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 85 states and 97 transitions. [2023-11-19 03:09:00,342 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2023-11-19 03:09:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:09:00,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:00,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:00,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:09:00,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:00,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:09:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:00,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 92 states and 107 transitions. [2023-11-19 03:09:00,703 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 107 transitions. [2023-11-19 03:09:00,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:09:00,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:00,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:00,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:09:00,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:09:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 100 states and 119 transitions. [2023-11-19 03:09:01,083 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2023-11-19 03:09:01,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 03:09:01,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:01,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:01,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:01,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:01,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:01,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 103 states and 124 transitions. [2023-11-19 03:09:01,266 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 124 transitions. [2023-11-19 03:09:01,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:09:01,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:01,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:01,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:01,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:01,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:01,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:01,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 107 states and 130 transitions. [2023-11-19 03:09:01,461 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 130 transitions. [2023-11-19 03:09:01,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:09:01,462 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:01,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:01,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:09:01,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:01,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 107 states and 129 transitions. [2023-11-19 03:09:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2023-11-19 03:09:01,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:09:01,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:01,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:01,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:09:01,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:01,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:02,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:02,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 119 states and 151 transitions. [2023-11-19 03:09:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 151 transitions. [2023-11-19 03:09:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 03:09:02,363 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:02,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:02,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:02,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:03,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:03,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 124 states and 158 transitions. [2023-11-19 03:09:03,021 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 158 transitions. [2023-11-19 03:09:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 03:09:03,022 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:03,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:03,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:09:03,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:03,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:03,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 129 states and 171 transitions. [2023-11-19 03:09:03,560 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 171 transitions. [2023-11-19 03:09:03,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:09:03,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:03,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:03,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:03,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:09:04,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:04,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 133 states and 175 transitions. [2023-11-19 03:09:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 175 transitions. [2023-11-19 03:09:04,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 03:09:04,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:04,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:04,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:04,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:09:05,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:05,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 138 states and 183 transitions. [2023-11-19 03:09:05,080 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 183 transitions. [2023-11-19 03:09:05,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:09:05,080 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:05,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:05,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:05,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:09:06,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:06,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 144 states and 192 transitions. [2023-11-19 03:09:06,128 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 192 transitions. [2023-11-19 03:09:06,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:09:06,129 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:06,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:06,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:06,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:06,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:09:06,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 151 states and 202 transitions. [2023-11-19 03:09:06,808 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 202 transitions. [2023-11-19 03:09:06,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:09:06,809 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:06,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:06,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:06,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:09:07,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:07,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 159 states and 214 transitions. [2023-11-19 03:09:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 214 transitions. [2023-11-19 03:09:07,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:09:07,482 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:07,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:07,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:09:07,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:08,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:08,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 170 states and 231 transitions. [2023-11-19 03:09:08,953 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 231 transitions. [2023-11-19 03:09:08,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:09:08,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:08,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:08,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:09:08,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:09,067 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:10,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:10,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 182 states and 249 transitions. [2023-11-19 03:09:10,787 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 249 transitions. [2023-11-19 03:09:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 03:09:10,788 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:10,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:10,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:09:10,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:13,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 196 states and 272 transitions. [2023-11-19 03:09:13,010 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 272 transitions. [2023-11-19 03:09:13,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 03:09:13,014 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:13,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:13,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:13,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:15,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:15,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 208 states and 292 transitions. [2023-11-19 03:09:15,155 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 292 transitions. [2023-11-19 03:09:15,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 03:09:15,156 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:15,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:15,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:09:15,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:17,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:17,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 223 states and 315 transitions. [2023-11-19 03:09:17,524 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 315 transitions. [2023-11-19 03:09:17,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 03:09:17,525 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:17,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:17,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:09:17,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:19,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 238 states and 338 transitions. [2023-11-19 03:09:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 338 transitions. [2023-11-19 03:09:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 03:09:19,630 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:19,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:19,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:09:19,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:19,939 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:23,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:23,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 256 states and 369 transitions. [2023-11-19 03:09:23,274 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 369 transitions. [2023-11-19 03:09:23,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 03:09:23,274 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:23,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:23,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:09:23,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:23,410 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:24,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 269 states and 390 transitions. [2023-11-19 03:09:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 390 transitions. [2023-11-19 03:09:24,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 03:09:24,924 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:24,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:24,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:09:24,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:27,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 288 states and 422 transitions. [2023-11-19 03:09:27,302 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 422 transitions. [2023-11-19 03:09:27,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 03:09:27,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:27,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:27,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:09:27,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:28,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:28,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 289 states and 424 transitions. [2023-11-19 03:09:28,013 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 424 transitions. [2023-11-19 03:09:28,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 03:09:28,014 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:28,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:28,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:28,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:30,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:30,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 295 states and 434 transitions. [2023-11-19 03:09:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 434 transitions. [2023-11-19 03:09:30,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 03:09:30,663 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:30,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:30,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:30,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:30,824 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 03:09:33,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 302 states and 445 transitions. [2023-11-19 03:09:33,173 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 445 transitions. [2023-11-19 03:09:33,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 03:09:33,174 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:33,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:33,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:33,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:33,346 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:09:33,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 304 states and 449 transitions. [2023-11-19 03:09:33,467 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 449 transitions. [2023-11-19 03:09:33,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 03:09:33,468 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:33,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:33,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:33,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:09:33,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:33,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 307 states and 454 transitions. [2023-11-19 03:09:33,872 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 454 transitions. [2023-11-19 03:09:33,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 03:09:33,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:33,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:33,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:33,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:09:35,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:35,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 315 states and 468 transitions. [2023-11-19 03:09:35,209 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 468 transitions. [2023-11-19 03:09:35,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:09:35,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:35,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:35,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:09:35,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:09:40,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:40,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 334 states and 498 transitions. [2023-11-19 03:09:40,081 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 498 transitions. [2023-11-19 03:09:40,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:09:40,081 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:40,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:40,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:09:40,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:40,251 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:09:41,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:41,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 343 states and 512 transitions. [2023-11-19 03:09:41,811 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 512 transitions. [2023-11-19 03:09:41,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 03:09:41,812 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:41,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:41,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:09:41,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:09:44,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:44,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 349 states and 522 transitions. [2023-11-19 03:09:44,452 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 522 transitions. [2023-11-19 03:09:44,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 03:09:44,453 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:44,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:44,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:09:44,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:44,901 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:09:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:48,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 373 states and 559 transitions. [2023-11-19 03:09:48,990 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 559 transitions. [2023-11-19 03:09:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 03:09:48,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:48,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:49,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:09:49,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:49,562 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:09:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:09:52,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 381 states and 569 transitions. [2023-11-19 03:09:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 569 transitions. [2023-11-19 03:09:52,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 03:09:52,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:09:52,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:09:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:09:52,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 03:09:52,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:09:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.