./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi --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 1c1067a232ccde2ed577e0679695f102973a28bf8615edad0a3c87e54d273eb4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:52:54,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:52:54,453 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 22:52:54,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:52:54,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:52:54,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:52:54,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:52:54,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:52:54,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:52:54,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:52:54,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:52:54,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:52:54,516 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:52:54,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:52:54,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:52:54,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:52:54,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:52:54,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:52:54,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:52:54,531 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:52:54,531 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:52:54,532 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:52:54,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:52:54,533 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:52:54,534 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:52:54,534 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:52:54,535 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:52:54,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:52:54,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:54,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:52:54,537 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:52:54,538 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:52:54,538 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:52:54,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:52:54,539 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:52:54,539 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_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c1067a232ccde2ed577e0679695f102973a28bf8615edad0a3c87e54d273eb4 [2023-11-24 22:52:54,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:52:54,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:52:54,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:52:54,860 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:52:54,860 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:52:54,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2023-11-24 22:52:58,413 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:52:58,727 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:52:58,727 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2023-11-24 22:52:58,737 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/data/3213fca65/4bd6376f6a1d4d79af74b23a265dafd1/FLAG390035b5f [2023-11-24 22:52:59,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/data/3213fca65/4bd6376f6a1d4d79af74b23a265dafd1 [2023-11-24 22:52:59,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:52:59,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:52:59,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:59,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:52:59,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:52:59,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d2df4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59, skipping insertion in model container [2023-11-24 22:52:59,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,053 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:52:59,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:59,353 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:52:59,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:59,411 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:52:59,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59 WrapperNode [2023-11-24 22:52:59,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:59,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:59,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:52:59,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:52:59,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,498 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 126 [2023-11-24 22:52:59,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:59,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:52:59,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:52:59,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:52:59,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,535 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,564 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:52:59,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:52:59,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:52:59,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:52:59,582 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:59,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:52:59,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:52:59,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49172838-2a99-447f-8653-4828ea0578c9/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:52:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:52:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 22:52:59,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 22:52:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:52:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:52:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:52:59,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 22:52:59,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 22:52:59,767 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:52:59,771 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:53:00,585 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:53:00,665 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:53:00,673 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:53:00,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:53:00 BoogieIcfgContainer [2023-11-24 22:53:00,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:53:00,677 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:53:00,677 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:53:00,694 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:53:00,694 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:53:00" (1/1) ... [2023-11-24 22:53:00,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:53:00,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:00,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 183 states and 187 transitions. [2023-11-24 22:53:00,802 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 187 transitions. [2023-11-24 22:53:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:53:00,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:00,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:01,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 185 states and 189 transitions. [2023-11-24 22:53:01,194 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 189 transitions. [2023-11-24 22:53:01,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:53:01,195 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 186 states and 190 transitions. [2023-11-24 22:53:01,310 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 190 transitions. [2023-11-24 22:53:01,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:53:01,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 185 states and 189 transitions. [2023-11-24 22:53:01,354 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 189 transitions. [2023-11-24 22:53:01,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:53:01,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:01,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 187 states and 191 transitions. [2023-11-24 22:53:01,504 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 191 transitions. [2023-11-24 22:53:01,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 22:53:01,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:01,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:01,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:01,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 188 states and 192 transitions. [2023-11-24 22:53:01,612 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 192 transitions. [2023-11-24 22:53:01,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:53:01,612 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:01,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:01,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:01,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 189 states and 193 transitions. [2023-11-24 22:53:01,688 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 193 transitions. [2023-11-24 22:53:01,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:53:01,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:01,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:01,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:01,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 188 states and 192 transitions. [2023-11-24 22:53:01,749 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 192 transitions. [2023-11-24 22:53:01,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 22:53:01,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:01,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:01,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:01,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 190 states and 194 transitions. [2023-11-24 22:53:01,849 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 194 transitions. [2023-11-24 22:53:01,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:53:01,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:01,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:01,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:01,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 191 states and 195 transitions. [2023-11-24 22:53:01,958 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 195 transitions. [2023-11-24 22:53:01,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 22:53:01,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:01,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 192 states and 196 transitions. [2023-11-24 22:53:02,127 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 196 transitions. [2023-11-24 22:53:02,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:53:02,128 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 193 states and 198 transitions. [2023-11-24 22:53:02,249 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 198 transitions. [2023-11-24 22:53:02,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 22:53:02,250 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,281 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 195 states and 200 transitions. [2023-11-24 22:53:02,366 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 200 transitions. [2023-11-24 22:53:02,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:53:02,367 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 194 states and 199 transitions. [2023-11-24 22:53:02,432 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 199 transitions. [2023-11-24 22:53:02,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:53:02,435 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 197 states and 202 transitions. [2023-11-24 22:53:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 202 transitions. [2023-11-24 22:53:02,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 22:53:02,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:02,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 198 states and 203 transitions. [2023-11-24 22:53:02,618 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 203 transitions. [2023-11-24 22:53:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 22:53:02,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:02,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 199 states and 204 transitions. [2023-11-24 22:53:02,696 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 204 transitions. [2023-11-24 22:53:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 22:53:02,697 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 198 states and 203 transitions. [2023-11-24 22:53:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 203 transitions. [2023-11-24 22:53:02,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-24 22:53:02,730 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 200 states and 205 transitions. [2023-11-24 22:53:02,807 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 205 transitions. [2023-11-24 22:53:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 22:53:02,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:02,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:02,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 201 states and 206 transitions. [2023-11-24 22:53:02,900 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 206 transitions. [2023-11-24 22:53:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-24 22:53:02,901 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:02,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:02,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:53:02,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:02,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:03,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:03,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 202 states and 207 transitions. [2023-11-24 22:53:03,008 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 207 transitions. [2023-11-24 22:53:03,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 22:53:03,008 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:03,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:03,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:03,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:03,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:03,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 203 states and 209 transitions. [2023-11-24 22:53:03,106 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 209 transitions. [2023-11-24 22:53:03,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 22:53:03,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:03,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:03,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:03,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:03,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:03,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 202 states and 208 transitions. [2023-11-24 22:53:03,228 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 208 transitions. [2023-11-24 22:53:03,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:53:03,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:03,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:03,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:03,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:03,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:03,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:03,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 201 states and 207 transitions. [2023-11-24 22:53:03,261 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 207 transitions. [2023-11-24 22:53:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 22:53:03,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:03,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:03,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:03,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:03,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 205 states and 212 transitions. [2023-11-24 22:53:03,488 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 212 transitions. [2023-11-24 22:53:03,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-24 22:53:03,488 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:03,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:03,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:03,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:03,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:03,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 210 states and 219 transitions. [2023-11-24 22:53:03,776 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 219 transitions. [2023-11-24 22:53:03,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 22:53:03,776 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:03,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:03,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:03,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:04,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 212 states and 221 transitions. [2023-11-24 22:53:04,124 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 221 transitions. [2023-11-24 22:53:04,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-24 22:53:04,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:04,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:04,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:04,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:04,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:04,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:04,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 219 states and 229 transitions. [2023-11-24 22:53:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 229 transitions. [2023-11-24 22:53:04,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-24 22:53:04,574 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:04,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:04,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:53:04,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:04,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:04,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:04,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 227 states and 237 transitions. [2023-11-24 22:53:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 237 transitions. [2023-11-24 22:53:04,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-24 22:53:04,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:04,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:04,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:04,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:05,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:05,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 257 states and 269 transitions. [2023-11-24 22:53:05,247 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 269 transitions. [2023-11-24 22:53:05,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-24 22:53:05,247 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:05,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:05,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:05,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:05,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:05,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 288 states and 302 transitions. [2023-11-24 22:53:05,730 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 302 transitions. [2023-11-24 22:53:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-24 22:53:05,730 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:05,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:05,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:05,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:05,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:06,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:06,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 291 states and 307 transitions. [2023-11-24 22:53:06,556 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 307 transitions. [2023-11-24 22:53:06,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 22:53:06,557 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:06,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:06,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:06,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:06,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:07,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:07,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 294 states and 311 transitions. [2023-11-24 22:53:07,374 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 311 transitions. [2023-11-24 22:53:07,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-24 22:53:07,374 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:07,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:07,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:53:07,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:07,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:08,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:08,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 299 states and 318 transitions. [2023-11-24 22:53:08,362 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 318 transitions. [2023-11-24 22:53:08,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-24 22:53:08,362 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:08,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:08,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:08,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:53:08,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:08,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:09,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:09,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 305 states and 325 transitions. [2023-11-24 22:53:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 325 transitions. [2023-11-24 22:53:09,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-24 22:53:09,389 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:09,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:09,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:09,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:09,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:09,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:09,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 308 states and 330 transitions. [2023-11-24 22:53:09,629 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 330 transitions. [2023-11-24 22:53:09,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-24 22:53:09,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:09,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:09,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:09,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:10,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:10,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 346 states and 374 transitions. [2023-11-24 22:53:10,482 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 374 transitions. [2023-11-24 22:53:10,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-24 22:53:10,483 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:10,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:10,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:10,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:10,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:10,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:10,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 350 states and 381 transitions. [2023-11-24 22:53:10,959 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 381 transitions. [2023-11-24 22:53:10,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-24 22:53:10,960 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:10,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:10,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:10,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:11,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:12,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 389 states and 427 transitions. [2023-11-24 22:53:12,175 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 427 transitions. [2023-11-24 22:53:12,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-24 22:53:12,175 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:12,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:12,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:12,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:12,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:12,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 388 states and 426 transitions. [2023-11-24 22:53:12,236 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 426 transitions. [2023-11-24 22:53:12,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-24 22:53:12,237 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:12,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:12,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:12,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:12,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:12,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 391 states and 431 transitions. [2023-11-24 22:53:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 431 transitions. [2023-11-24 22:53:12,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-24 22:53:12,769 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:12,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:12,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:12,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:12,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:13,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 397 states and 441 transitions. [2023-11-24 22:53:13,609 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 441 transitions. [2023-11-24 22:53:13,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-24 22:53:13,609 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:13,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:13,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:13,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:13,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:14,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 401 states and 447 transitions. [2023-11-24 22:53:14,049 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 447 transitions. [2023-11-24 22:53:14,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-24 22:53:14,050 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:14,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:14,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:14,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:14,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:14,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:14,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 408 states and 458 transitions. [2023-11-24 22:53:14,880 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 458 transitions. [2023-11-24 22:53:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-24 22:53:14,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:14,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:14,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:14,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:14,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:14,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:14,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 407 states and 457 transitions. [2023-11-24 22:53:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 457 transitions. [2023-11-24 22:53:14,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-24 22:53:14,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:14,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:14,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:14,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 415 states and 469 transitions. [2023-11-24 22:53:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 469 transitions. [2023-11-24 22:53:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-24 22:53:15,924 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:15,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:15,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:53:15,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:16,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:17,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:17,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 424 states and 484 transitions. [2023-11-24 22:53:17,465 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 484 transitions. [2023-11-24 22:53:17,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-24 22:53:17,466 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:17,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:17,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:17,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:17,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:17,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 423 states and 483 transitions. [2023-11-24 22:53:17,521 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 483 transitions. [2023-11-24 22:53:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-24 22:53:17,521 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:17,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:17,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:17,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:17,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:17,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 424 states and 485 transitions. [2023-11-24 22:53:17,707 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 485 transitions. [2023-11-24 22:53:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-24 22:53:17,709 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:17,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:17,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:17,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:18,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:18,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:18,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 432 states and 495 transitions. [2023-11-24 22:53:18,535 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 495 transitions. [2023-11-24 22:53:18,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-24 22:53:18,536 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:18,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:18,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:18,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:18,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:18,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 434 states and 497 transitions. [2023-11-24 22:53:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 497 transitions. [2023-11-24 22:53:18,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-24 22:53:18,845 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:18,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:18,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:18,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:19,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 443 states and 508 transitions. [2023-11-24 22:53:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 508 transitions. [2023-11-24 22:53:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-24 22:53:19,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:19,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:19,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:19,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:19,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 442 states and 507 transitions. [2023-11-24 22:53:19,479 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 507 transitions. [2023-11-24 22:53:19,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-24 22:53:19,480 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:19,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:19,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:19,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:19,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:20,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 452 states and 519 transitions. [2023-11-24 22:53:20,237 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 519 transitions. [2023-11-24 22:53:20,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-24 22:53:20,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:20,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:53:20,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:20,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:20,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 455 states and 522 transitions. [2023-11-24 22:53:20,364 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 522 transitions. [2023-11-24 22:53:20,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-24 22:53:20,364 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:20,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:20,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:20,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:20,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:20,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:20,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 454 states and 521 transitions. [2023-11-24 22:53:20,678 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 521 transitions. [2023-11-24 22:53:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-24 22:53:20,679 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:20,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:20,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:20,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:21,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 467 states and 539 transitions. [2023-11-24 22:53:21,391 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 539 transitions. [2023-11-24 22:53:21,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-24 22:53:21,393 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:21,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:21,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:21,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:21,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 466 states and 538 transitions. [2023-11-24 22:53:21,583 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 538 transitions. [2023-11-24 22:53:21,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-24 22:53:21,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:21,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:21,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:21,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:22,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:22,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 481 states and 559 transitions. [2023-11-24 22:53:22,874 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 559 transitions. [2023-11-24 22:53:22,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-24 22:53:22,875 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:22,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:22,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:22,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:22,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:22,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 480 states and 558 transitions. [2023-11-24 22:53:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 558 transitions. [2023-11-24 22:53:22,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-24 22:53:22,926 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:22,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:22,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:22,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:23,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:23,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 479 states and 557 transitions. [2023-11-24 22:53:23,464 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 557 transitions. [2023-11-24 22:53:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-24 22:53:23,465 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:23,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:23,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:23,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:23,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:24,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 483 states and 564 transitions. [2023-11-24 22:53:24,197 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 564 transitions. [2023-11-24 22:53:24,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-24 22:53:24,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:24,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:24,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:24,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:24,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:24,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 482 states and 563 transitions. [2023-11-24 22:53:24,666 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 563 transitions. [2023-11-24 22:53:24,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-24 22:53:24,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:24,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:24,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:24,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:24,771 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:25,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:25,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 487 states and 570 transitions. [2023-11-24 22:53:25,449 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 570 transitions. [2023-11-24 22:53:25,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-24 22:53:25,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:25,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:25,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:25,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:25,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:25,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 486 states and 569 transitions. [2023-11-24 22:53:25,655 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 569 transitions. [2023-11-24 22:53:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-24 22:53:25,656 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:25,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:25,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:25,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:25,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:25,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 485 states and 568 transitions. [2023-11-24 22:53:25,731 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 568 transitions. [2023-11-24 22:53:25,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-24 22:53:25,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:25,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:25,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:53:25,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:26,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:26,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 488 states and 571 transitions. [2023-11-24 22:53:26,013 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 571 transitions. [2023-11-24 22:53:26,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-24 22:53:26,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:26,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:26,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:26,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:26,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:27,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 487 states and 570 transitions. [2023-11-24 22:53:27,274 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 570 transitions. [2023-11-24 22:53:27,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-24 22:53:27,274 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:27,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:27,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:27,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:27,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 488 states and 572 transitions. [2023-11-24 22:53:27,446 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 572 transitions. [2023-11-24 22:53:27,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-24 22:53:27,447 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:27,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:27,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:27,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:27,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:27,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:28,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:28,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 487 states and 571 transitions. [2023-11-24 22:53:28,619 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 571 transitions. [2023-11-24 22:53:28,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-24 22:53:28,620 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:28,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:28,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:28,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:28,731 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:28,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:28,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 489 states and 573 transitions. [2023-11-24 22:53:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 573 transitions. [2023-11-24 22:53:28,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-24 22:53:28,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:28,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:28,872 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:28,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:29,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:29,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:29,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 488 states and 572 transitions. [2023-11-24 22:53:29,500 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 572 transitions. [2023-11-24 22:53:29,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-24 22:53:29,500 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:29,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:29,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:29,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:30,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:30,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 487 states and 571 transitions. [2023-11-24 22:53:30,031 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 571 transitions. [2023-11-24 22:53:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-24 22:53:30,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:30,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:30,065 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:53:30,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:30,164 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 490 states and 574 transitions. [2023-11-24 22:53:30,210 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 574 transitions. [2023-11-24 22:53:30,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-24 22:53:30,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:30,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:30,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:30,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:30,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:30,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 489 states and 573 transitions. [2023-11-24 22:53:30,618 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 573 transitions. [2023-11-24 22:53:30,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-24 22:53:30,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:30,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:30,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:30,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:30,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:30,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 490 states and 575 transitions. [2023-11-24 22:53:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 575 transitions. [2023-11-24 22:53:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-24 22:53:30,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:30,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:30,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:53:30,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:30,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:30,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:30,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 489 states and 574 transitions. [2023-11-24 22:53:30,915 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 574 transitions. [2023-11-24 22:53:30,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-24 22:53:30,916 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:30,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:30,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:30,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:31,070 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:31,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:31,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 491 states and 576 transitions. [2023-11-24 22:53:31,171 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 576 transitions. [2023-11-24 22:53:31,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-24 22:53:31,172 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:31,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:31,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:31,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:32,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:32,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 490 states and 575 transitions. [2023-11-24 22:53:32,135 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 575 transitions. [2023-11-24 22:53:32,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-24 22:53:32,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:32,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:32,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:32,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:32,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 491 states and 575 transitions. [2023-11-24 22:53:32,371 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 575 transitions. [2023-11-24 22:53:32,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-24 22:53:32,372 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:32,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:32,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:32,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:32,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:33,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:33,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 490 states and 574 transitions. [2023-11-24 22:53:33,302 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 574 transitions. [2023-11-24 22:53:33,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-24 22:53:33,302 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:33,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:33,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:33,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:33,416 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:33,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:33,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 492 states and 576 transitions. [2023-11-24 22:53:33,531 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 576 transitions. [2023-11-24 22:53:33,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-24 22:53:33,532 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:33,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:33,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:33,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:33,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:34,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:34,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 491 states and 575 transitions. [2023-11-24 22:53:34,321 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 575 transitions. [2023-11-24 22:53:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-24 22:53:34,321 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:34,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:34,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:34,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:34,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:35,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:35,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 490 states and 574 transitions. [2023-11-24 22:53:35,810 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 574 transitions. [2023-11-24 22:53:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-24 22:53:35,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:35,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:35,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:53:35,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:35,956 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:35,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:35,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 492 states and 576 transitions. [2023-11-24 22:53:35,994 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 576 transitions. [2023-11-24 22:53:35,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-24 22:53:35,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:35,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:36,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:36,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:36,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:36,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:36,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 491 states and 575 transitions. [2023-11-24 22:53:36,983 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 575 transitions. [2023-11-24 22:53:36,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-24 22:53:36,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:36,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:37,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:37,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:37,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 492 states and 577 transitions. [2023-11-24 22:53:37,174 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 577 transitions. [2023-11-24 22:53:37,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-24 22:53:37,175 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:37,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:37,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:37,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:38,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:38,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 521 states and 609 transitions. [2023-11-24 22:53:38,784 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 609 transitions. [2023-11-24 22:53:38,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-24 22:53:38,784 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:38,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:38,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:53:38,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:39,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:39,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 523 states and 611 transitions. [2023-11-24 22:53:39,024 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 611 transitions. [2023-11-24 22:53:39,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-24 22:53:39,025 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:39,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:39,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:39,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:40,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 553 states and 644 transitions. [2023-11-24 22:53:40,944 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 644 transitions. [2023-11-24 22:53:40,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 22:53:40,944 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:40,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:40,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:40,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:41,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 584 states and 677 transitions. [2023-11-24 22:53:44,850 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 677 transitions. [2023-11-24 22:53:44,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-24 22:53:44,851 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:44,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:44,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 22:53:44,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:44,976 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:53:45,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:45,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 587 states and 680 transitions. [2023-11-24 22:53:45,030 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 680 transitions. [2023-11-24 22:53:45,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-24 22:53:45,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:45,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:45,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:53:45,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:53:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.