./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/egcd.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/egcd.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2 --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 01ca8c8e30ceefcd4f6e4832a31edd1224d925e8551df750bd60cc922035a838 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:25:49,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:25:49,249 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-21 18:25:49,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:25:49,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:25:49,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:25:49,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:25:49,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:25:49,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:25:49,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:25:49,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:25:49,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:25:49,291 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 18:25:49,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:25:49,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 18:25:49,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:25:49,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:25:49,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:25:49,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:25:49,295 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:25:49,295 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:25:49,296 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 18:25:49,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:25:49,297 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:25:49,297 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:25:49,297 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:25:49,298 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:25:49,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:25:49,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:49,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:25:49,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:25:49,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:25:49,300 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:25:49,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:25:49,300 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:25:49,300 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_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ca8c8e30ceefcd4f6e4832a31edd1224d925e8551df750bd60cc922035a838 [2023-11-21 18:25:49,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:25:49,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:25:49,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:25:49,627 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:25:49,627 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:25:49,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/nla-digbench/egcd.c [2023-11-21 18:25:52,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:25:53,049 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:25:53,051 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/sv-benchmarks/c/nla-digbench/egcd.c [2023-11-21 18:25:53,063 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/data/b6b897964/b5f63438bcd941089cc7e4fa6a6ebd1f/FLAG0060e4ede [2023-11-21 18:25:53,078 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/data/b6b897964/b5f63438bcd941089cc7e4fa6a6ebd1f [2023-11-21 18:25:53,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:25:53,082 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:25:53,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:53,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:25:53,089 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:25:53,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,091 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b128e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53, skipping insertion in model container [2023-11-21 18:25:53,091 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,113 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:25:53,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:53,314 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:25:53,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:53,356 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:25:53,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53 WrapperNode [2023-11-21 18:25:53,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:53,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:53,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:25:53,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:25:53,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,402 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2023-11-21 18:25:53,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:53,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:25:53,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:25:53,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:25:53,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:25:53,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:25:53,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:25:53,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:25:53,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:53" (1/1) ... [2023-11-21 18:25:53,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:53,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:25:53,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:25:53,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f51e6ac2-77ed-4b45-9624-39a6a288a666/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:25:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:25:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 18:25:53,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 18:25:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:25:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:25:53,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:25:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 18:25:53,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 18:25:53,593 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:25:53,595 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:25:54,087 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:25:54,143 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:25:54,143 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:25:54,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:54 BoogieIcfgContainer [2023-11-21 18:25:54,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:25:54,146 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:25:54,147 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:25:54,158 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:25:54,158 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:54" (1/1) ... [2023-11-21 18:25:54,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:25:54,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:54,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 132 states and 141 transitions. [2023-11-21 18:25:54,230 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 141 transitions. [2023-11-21 18:25:54,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:25:54,236 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:54,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:54,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:54,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:54,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 132 states and 140 transitions. [2023-11-21 18:25:54,482 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 140 transitions. [2023-11-21 18:25:54,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:25:54,483 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:54,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:54,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:25:54,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:54,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:54,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 134 states and 144 transitions. [2023-11-21 18:25:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2023-11-21 18:25:54,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:25:54,708 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:54,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:54,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 18:25:54,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:54,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 135 states and 145 transitions. [2023-11-21 18:25:54,810 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 145 transitions. [2023-11-21 18:25:54,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:25:54,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:54,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:54,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:25:54,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:54,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:54,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 139 states and 152 transitions. [2023-11-21 18:25:54,990 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 152 transitions. [2023-11-21 18:25:54,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:25:54,991 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:54,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:55,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:25:55,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:55,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 140 states and 153 transitions. [2023-11-21 18:25:55,055 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 153 transitions. [2023-11-21 18:25:55,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 18:25:55,056 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:55,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:55,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:25:55,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:55,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:55,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 143 states and 156 transitions. [2023-11-21 18:25:55,272 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 156 transitions. [2023-11-21 18:25:55,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 18:25:55,273 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:55,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:55,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 18:25:55,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:55,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:55,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 144 states and 157 transitions. [2023-11-21 18:25:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 157 transitions. [2023-11-21 18:25:55,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 18:25:55,469 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:55,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:55,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:25:55,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:55,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:55,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 153 states and 170 transitions. [2023-11-21 18:25:55,749 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 170 transitions. [2023-11-21 18:25:55,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 18:25:55,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:55,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:55,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:25:55,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:55,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:55,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:55,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 154 states and 171 transitions. [2023-11-21 18:25:55,866 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 171 transitions. [2023-11-21 18:25:55,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 18:25:55,867 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:55,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:55,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:25:55,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:56,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:56,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 165 states and 187 transitions. [2023-11-21 18:25:56,405 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 187 transitions. [2023-11-21 18:25:56,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 18:25:56,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:56,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:56,449 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:25:56,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 177 states and 204 transitions. [2023-11-21 18:25:57,172 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 204 transitions. [2023-11-21 18:25:57,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 18:25:57,173 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:57,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:57,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:25:57,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:57,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 180 states and 208 transitions. [2023-11-21 18:25:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 208 transitions. [2023-11-21 18:25:57,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 18:25:57,487 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:57,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:57,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:25:57,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:57,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 18:25:57,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:57,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 181 states and 209 transitions. [2023-11-21 18:25:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 209 transitions. [2023-11-21 18:25:57,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 18:25:57,960 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:57,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:57,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:25:57,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:58,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:25:58,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 190 states and 223 transitions. [2023-11-21 18:25:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 223 transitions. [2023-11-21 18:25:58,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 18:25:58,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:58,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:58,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:25:58,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:58,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:25:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:58,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 191 states and 224 transitions. [2023-11-21 18:25:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 224 transitions. [2023-11-21 18:25:58,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 18:25:58,612 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:58,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:58,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:25:58,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:25:59,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:59,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 209 states and 249 transitions. [2023-11-21 18:25:59,931 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 249 transitions. [2023-11-21 18:25:59,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 18:25:59,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:59,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:59,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:25:59,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:26:01,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:01,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 228 states and 275 transitions. [2023-11-21 18:26:01,556 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 275 transitions. [2023-11-21 18:26:01,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 18:26:01,556 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:01,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:01,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:26:01,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:01,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:26:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 231 states and 279 transitions. [2023-11-21 18:26:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 279 transitions. [2023-11-21 18:26:01,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 18:26:01,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:01,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:01,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 18:26:01,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 18:26:02,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 232 states and 280 transitions. [2023-11-21 18:26:02,520 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 280 transitions. [2023-11-21 18:26:02,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 18:26:02,520 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:02,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:02,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:26:02,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:02,603 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:02,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 231 states and 279 transitions. [2023-11-21 18:26:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 279 transitions. [2023-11-21 18:26:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 18:26:02,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:02,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:02,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:26:02,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:02,761 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:02,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:02,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 230 states and 278 transitions. [2023-11-21 18:26:02,897 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 278 transitions. [2023-11-21 18:26:02,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 18:26:02,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:02,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:02,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:26:02,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:02,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:02,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 229 states and 277 transitions. [2023-11-21 18:26:02,966 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 277 transitions. [2023-11-21 18:26:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-21 18:26:02,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:02,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:02,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:26:02,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:03,000 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:03,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 228 states and 276 transitions. [2023-11-21 18:26:03,023 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 276 transitions. [2023-11-21 18:26:03,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 18:26:03,024 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:03,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:03,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 18:26:03,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:03,339 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-21 18:26:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 254 states and 313 transitions. [2023-11-21 18:26:06,060 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 313 transitions. [2023-11-21 18:26:06,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 18:26:06,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:06,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:06,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 18:26:06,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:06,367 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-21 18:26:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:09,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 280 states and 348 transitions. [2023-11-21 18:26:09,571 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 348 transitions. [2023-11-21 18:26:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 18:26:09,572 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:09,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:09,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:26:09,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:09,805 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:12,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 295 states and 372 transitions. [2023-11-21 18:26:12,780 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 372 transitions. [2023-11-21 18:26:12,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 18:26:12,781 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:12,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:12,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:26:12,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:16,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 310 states and 395 transitions. [2023-11-21 18:26:16,087 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 395 transitions. [2023-11-21 18:26:16,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 18:26:16,087 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:16,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:16,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:26:16,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:16,295 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:26:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:19,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 323 states and 416 transitions. [2023-11-21 18:26:19,005 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 416 transitions. [2023-11-21 18:26:19,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 18:26:19,006 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:19,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:19,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:26:19,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:20,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:20,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 327 states and 422 transitions. [2023-11-21 18:26:20,100 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 422 transitions. [2023-11-21 18:26:20,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 18:26:20,101 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:20,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:26:20,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:20,274 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:21,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 331 states and 428 transitions. [2023-11-21 18:26:21,127 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 428 transitions. [2023-11-21 18:26:21,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 18:26:21,128 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:21,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:21,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:26:21,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:21,311 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:26:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 345 states and 450 transitions. [2023-11-21 18:26:25,238 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 450 transitions. [2023-11-21 18:26:25,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 18:26:25,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:25,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:25,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:26:25,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:30,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:30,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 360 states and 476 transitions. [2023-11-21 18:26:30,654 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 476 transitions. [2023-11-21 18:26:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 18:26:30,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:30,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:30,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:26:30,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:30,911 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:35,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:35,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 375 states and 501 transitions. [2023-11-21 18:26:35,838 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 501 transitions. [2023-11-21 18:26:35,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-21 18:26:35,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:35,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:35,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:26:35,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:36,121 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:26:38,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 381 states and 512 transitions. [2023-11-21 18:26:38,383 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 512 transitions. [2023-11-21 18:26:38,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 18:26:38,383 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:38,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:38,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:26:38,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:38,517 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:40,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 387 states and 523 transitions. [2023-11-21 18:26:40,466 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 523 transitions. [2023-11-21 18:26:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 18:26:40,467 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:40,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:40,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 18:26:40,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:40,614 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 18:26:42,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:42,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 393 states and 535 transitions. [2023-11-21 18:26:42,411 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 535 transitions. [2023-11-21 18:26:42,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 18:26:42,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:42,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:42,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:26:42,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 18:26:46,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:46,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 400 states and 547 transitions. [2023-11-21 18:26:46,171 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 547 transitions. [2023-11-21 18:26:46,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-21 18:26:46,172 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:46,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:46,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:26:46,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:26:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.