./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC --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 e62f050c54efcaebe70ca4fab804a982fed550b56ad5b495e4ea54f0b2b8135b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:14:29,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:14:30,053 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-23 20:14:30,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:14:30,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:14:30,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:14:30,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:14:30,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:14:30,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:14:30,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:14:30,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:14:30,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:14:30,127 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:14:30,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:14:30,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:14:30,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:14:30,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:14:30,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:14:30,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:14:30,131 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:14:30,132 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:14:30,132 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:14:30,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:14:30,134 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:14:30,134 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:14:30,135 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:14:30,135 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:14:30,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:14:30,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:14:30,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:14:30,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:14:30,138 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:14:30,138 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:14:30,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:14:30,139 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:14:30,140 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_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e62f050c54efcaebe70ca4fab804a982fed550b56ad5b495e4ea54f0b2b8135b [2023-11-23 20:14:30,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:14:30,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:14:30,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:14:30,458 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:14:30,458 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:14:30,460 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c [2023-11-23 20:14:33,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:14:33,818 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:14:33,819 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c [2023-11-23 20:14:33,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/data/820771e63/6d93f73dfa944b8584560265dbb2b101/FLAGa7463bb83 [2023-11-23 20:14:33,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/data/820771e63/6d93f73dfa944b8584560265dbb2b101 [2023-11-23 20:14:33,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:14:33,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:14:33,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:14:33,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:14:33,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:14:33,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:14:33" (1/1) ... [2023-11-23 20:14:33,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e1cf2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:33, skipping insertion in model container [2023-11-23 20:14:33,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:14:33" (1/1) ... [2023-11-23 20:14:33,895 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:14:34,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:14:34,117 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:14:34,136 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:14:34,151 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:14:34,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34 WrapperNode [2023-11-23 20:14:34,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:14:34,153 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:14:34,153 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:14:34,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:14:34,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,200 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2023-11-23 20:14:34,201 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:14:34,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:14:34,202 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:14:34,202 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:14:34,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:14:34,253 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:14:34,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:14:34,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:14:34,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:14:34,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:14:34,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:14:34,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e9a4c0-8b10-40fd-a050-b5cae26b7b64/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:14:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:14:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:14:34,352 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:14:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:14:34,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:14:34,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:14:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 20:14:34,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 20:14:34,445 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:14:34,447 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:14:34,812 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:14:34,844 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:14:34,844 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:14:34,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:14:34 BoogieIcfgContainer [2023-11-23 20:14:34,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:14:34,847 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:14:34,847 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:14:34,857 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:14:34,858 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:14:34" (1/1) ... [2023-11-23 20:14:34,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:14:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 60 states and 65 transitions. [2023-11-23 20:14:34,921 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2023-11-23 20:14:34,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:14:34,924 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:34,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:35,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:14:35,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:35,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:35,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:35,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 60 states and 64 transitions. [2023-11-23 20:14:35,133 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2023-11-23 20:14:35,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:14:35,133 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:35,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:35,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:35,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 62 states and 68 transitions. [2023-11-23 20:14:35,291 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2023-11-23 20:14:35,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:14:35,291 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:35,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:35,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:35,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 63 states and 69 transitions. [2023-11-23 20:14:35,451 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2023-11-23 20:14:35,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:14:35,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:35,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:35,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:14:35,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:35,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:35,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 64 states and 70 transitions. [2023-11-23 20:14:35,705 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2023-11-23 20:14:35,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:14:35,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:35,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:35,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:14:35,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:35,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:35,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:35,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 69 states and 78 transitions. [2023-11-23 20:14:35,992 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2023-11-23 20:14:35,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:14:35,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:35,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:36,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:14:36,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:36,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:36,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:36,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 70 states and 79 transitions. [2023-11-23 20:14:36,051 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2023-11-23 20:14:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:14:36,052 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:36,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:36,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:14:36,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:36,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:36,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 77 states and 90 transitions. [2023-11-23 20:14:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 90 transitions. [2023-11-23 20:14:36,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:14:36,664 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:36,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:36,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:14:36,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:36,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:37,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:37,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 85 states and 103 transitions. [2023-11-23 20:14:37,562 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 103 transitions. [2023-11-23 20:14:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:14:37,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:37,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:37,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:14:37,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:38,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 94 states and 116 transitions. [2023-11-23 20:14:38,898 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 116 transitions. [2023-11-23 20:14:38,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 20:14:38,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:38,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:38,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:14:38,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:39,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:40,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:40,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 101 states and 125 transitions. [2023-11-23 20:14:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2023-11-23 20:14:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 20:14:40,273 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:40,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:40,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:14:40,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:40,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 104 states and 131 transitions. [2023-11-23 20:14:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 131 transitions. [2023-11-23 20:14:40,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 20:14:40,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:40,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:40,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:14:40,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:40,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:40,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 108 states and 139 transitions. [2023-11-23 20:14:40,824 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 139 transitions. [2023-11-23 20:14:40,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:14:40,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:40,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:40,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:14:40,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:41,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:41,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 112 states and 147 transitions. [2023-11-23 20:14:41,289 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 147 transitions. [2023-11-23 20:14:41,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:14:41,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:41,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:41,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:14:41,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:41,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:41,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:41,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 116 states and 156 transitions. [2023-11-23 20:14:41,575 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 156 transitions. [2023-11-23 20:14:41,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:14:41,576 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:41,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:41,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:14:41,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:42,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 119 states and 160 transitions. [2023-11-23 20:14:42,158 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 160 transitions. [2023-11-23 20:14:42,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 20:14:42,158 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:42,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:42,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:14:42,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:42,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:42,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:42,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 123 states and 165 transitions. [2023-11-23 20:14:42,937 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 165 transitions. [2023-11-23 20:14:42,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 20:14:42,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:42,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:42,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:14:42,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:43,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:43,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:43,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 122 states and 164 transitions. [2023-11-23 20:14:43,198 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 164 transitions. [2023-11-23 20:14:43,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 20:14:43,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:43,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:43,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:14:43,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:43,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:44,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 128 states and 178 transitions. [2023-11-23 20:14:44,994 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 178 transitions. [2023-11-23 20:14:44,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 20:14:44,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:44,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:45,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:14:45,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:45,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 130 states and 180 transitions. [2023-11-23 20:14:45,705 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 180 transitions. [2023-11-23 20:14:45,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 20:14:45,709 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:45,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:45,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:14:45,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:45,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:46,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:46,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 137 states and 192 transitions. [2023-11-23 20:14:46,563 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 192 transitions. [2023-11-23 20:14:46,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:14:46,564 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:46,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:46,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:14:46,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:14:49,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 155 states and 219 transitions. [2023-11-23 20:14:49,951 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 219 transitions. [2023-11-23 20:14:49,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 20:14:49,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:49,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:49,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 20:14:49,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:14:50,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:50,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 158 states and 224 transitions. [2023-11-23 20:14:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 224 transitions. [2023-11-23 20:14:50,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:14:50,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:50,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:50,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:14:50,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:50,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:52,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:52,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 164 states and 239 transitions. [2023-11-23 20:14:52,142 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 239 transitions. [2023-11-23 20:14:52,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 20:14:52,143 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:52,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:52,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:14:52,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:52,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 168 states and 249 transitions. [2023-11-23 20:14:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 249 transitions. [2023-11-23 20:14:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 20:14:52,764 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:52,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:52,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:14:52,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:52,975 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:55,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:55,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 188 states and 295 transitions. [2023-11-23 20:14:55,663 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 295 transitions. [2023-11-23 20:14:55,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 20:14:55,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:55,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:55,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:55,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:14:55,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:14:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:14:57,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 194 states and 308 transitions. [2023-11-23 20:14:57,599 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 308 transitions. [2023-11-23 20:14:57,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:14:57,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:14:57,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:14:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:14:57,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:14:57,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:14:57,802 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 205 states and 343 transitions. [2023-11-23 20:15:00,600 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 343 transitions. [2023-11-23 20:15:00,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 20:15:00,601 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:00,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:00,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:15:00,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:02,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 209 states and 349 transitions. [2023-11-23 20:15:02,334 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 349 transitions. [2023-11-23 20:15:02,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 20:15:02,335 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:02,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:02,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:15:02,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:02,481 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:05,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:05,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 218 states and 367 transitions. [2023-11-23 20:15:05,241 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 367 transitions. [2023-11-23 20:15:05,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 20:15:05,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:05,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:05,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:15:05,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:05,314 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 219 states and 368 transitions. [2023-11-23 20:15:05,687 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 368 transitions. [2023-11-23 20:15:05,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 20:15:05,688 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:05,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:05,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:15:05,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:07,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:07,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 224 states and 374 transitions. [2023-11-23 20:15:07,172 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 374 transitions. [2023-11-23 20:15:07,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 20:15:07,173 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:07,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:07,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:15:07,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:12,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 243 states and 403 transitions. [2023-11-23 20:15:12,640 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 403 transitions. [2023-11-23 20:15:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 20:15:12,641 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:12,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:12,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:15:12,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:17,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 251 states and 421 transitions. [2023-11-23 20:15:17,496 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 421 transitions. [2023-11-23 20:15:17,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 20:15:17,497 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:17,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:17,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:15:17,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:17,557 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:18,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:18,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 254 states and 424 transitions. [2023-11-23 20:15:18,620 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 424 transitions. [2023-11-23 20:15:18,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 20:15:18,621 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:18,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:18,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 20:15:18,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:19,209 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:20,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 256 states and 427 transitions. [2023-11-23 20:15:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 427 transitions. [2023-11-23 20:15:20,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 20:15:20,475 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:20,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:20,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 20:15:20,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:24,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 264 states and 448 transitions. [2023-11-23 20:15:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 448 transitions. [2023-11-23 20:15:24,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 20:15:24,253 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:24,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:24,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:15:24,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:15:24,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:15:24,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 265 states and 448 transitions. [2023-11-23 20:15:24,728 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 448 transitions. [2023-11-23 20:15:24,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 20:15:24,729 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:15:24,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:15:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:15:24,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:15:24,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:15:24,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.