./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_strcpy_ground-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/array-examples/standard_strcpy_ground-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV --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 9957a8257e625ece47db9a92e288c6545c023c8bdaf68d0d314c8d86ce47979a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:07:03,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:07:03,582 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-12 00:07:03,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:07:03,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:07:03,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:07:03,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:07:03,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:07:03,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:07:03,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:07:03,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:07:03,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:07:03,650 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:07:03,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:07:03,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:07:03,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:07:03,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:07:03,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:07:03,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:07:03,658 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:07:03,658 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:07:03,659 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:07:03,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:07:03,660 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:07:03,660 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:07:03,660 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:07:03,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:07:03,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:07:03,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:07:03,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:07:03,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:07:03,664 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:07:03,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:07:03,664 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:07:03,664 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_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9957a8257e625ece47db9a92e288c6545c023c8bdaf68d0d314c8d86ce47979a [2023-11-12 00:07:03,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:07:04,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:07:04,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:07:04,030 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:07:04,031 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:07:04,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/array-examples/standard_strcpy_ground-1.i [2023-11-12 00:07:07,272 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:07:07,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:07:07,557 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/sv-benchmarks/c/array-examples/standard_strcpy_ground-1.i [2023-11-12 00:07:07,572 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/data/7cc15d70b/93ce7a6d38af48ce989bbde703462f97/FLAG7070ae129 [2023-11-12 00:07:07,892 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/data/7cc15d70b/93ce7a6d38af48ce989bbde703462f97 [2023-11-12 00:07:07,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:07:07,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:07:07,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:07:07,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:07:07,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:07:07,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:07:07" (1/1) ... [2023-11-12 00:07:07,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c51823b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:07, skipping insertion in model container [2023-11-12 00:07:07,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:07:07" (1/1) ... [2023-11-12 00:07:07,942 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:07:08,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:07:08,198 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:07:08,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:07:08,254 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:07:08,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08 WrapperNode [2023-11-12 00:07:08,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:07:08,257 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:07:08,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:07:08,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:07:08,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,307 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2023-11-12 00:07:08,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:07:08,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:07:08,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:07:08,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:07:08,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:07:08,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:07:08,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:07:08,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:07:08,371 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:07:08" (1/1) ... [2023-11-12 00:07:08,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:07:08,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:07:08,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:07:08,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f65530f7-4ecf-4002-a7cb-83ad62cf7721/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:07:08,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:07:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:07:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:07:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:07:08,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:07:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:07:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:07:08,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:07:08,561 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:07:08,563 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:07:08,894 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:07:09,015 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:07:09,018 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 00:07:09,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:07:09 BoogieIcfgContainer [2023-11-12 00:07:09,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:07:09,024 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:07:09,024 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:07:09,037 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:07:09,037 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:07:09" (1/1) ... [2023-11-12 00:07:09,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:07:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:09,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-12 00:07:09,127 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-12 00:07:09,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 00:07:09,133 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:09,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:09,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:07:09,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:09,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-11-12 00:07:09,406 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-12 00:07:09,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:07:09,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:09,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:07:09,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2023-11-12 00:07:09,534 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-11-12 00:07:09,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:07:09,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:09,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:09,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:07:09,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:09,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2023-11-12 00:07:09,757 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2023-11-12 00:07:09,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:07:09,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:09,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:09,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:07:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:09,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2023-11-12 00:07:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-12 00:07:09,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:07:09,998 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:09,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:10,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:07:10,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:10,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2023-11-12 00:07:10,195 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-12 00:07:10,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:07:10,195 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:10,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:10,271 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:07:10,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:10,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2023-11-12 00:07:10,490 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-11-12 00:07:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:07:10,490 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:10,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:10,552 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:07:11,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:11,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 33 states and 43 transitions. [2023-11-12 00:07:11,153 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2023-11-12 00:07:11,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:07:11,154 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:11,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:11,197 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:07:11,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:11,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2023-11-12 00:07:11,218 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2023-11-12 00:07:11,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:07:11,219 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:11,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:07:11,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:11,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 36 states and 47 transitions. [2023-11-12 00:07:11,382 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2023-11-12 00:07:11,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:07:11,383 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:11,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:11,462 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 00:07:11,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:11,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 36 transitions. [2023-11-12 00:07:11,701 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2023-11-12 00:07:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:07:11,702 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:11,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:11,818 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:07:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:11,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 32 states and 41 transitions. [2023-11-12 00:07:11,942 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2023-11-12 00:07:11,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:07:11,943 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:11,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:12,032 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 00:07:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:12,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2023-11-12 00:07:12,220 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2023-11-12 00:07:12,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:07:12,221 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:12,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-12 00:07:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:12,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 50 transitions. [2023-11-12 00:07:12,553 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2023-11-12 00:07:12,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:07:12,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:12,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-12 00:07:12,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:12,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 39 states and 51 transitions. [2023-11-12 00:07:12,635 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2023-11-12 00:07:12,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:07:12,636 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:12,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:12,770 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-12 00:07:13,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:13,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 50 transitions. [2023-11-12 00:07:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2023-11-12 00:07:13,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:07:13,078 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:13,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 00:07:13,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:13,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2023-11-12 00:07:13,551 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2023-11-12 00:07:13,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:07:13,552 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:13,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 40 states and 52 transitions. [2023-11-12 00:07:14,038 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2023-11-12 00:07:14,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 00:07:14,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:14,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:14,168 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 43 states and 55 transitions. [2023-11-12 00:07:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2023-11-12 00:07:14,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 00:07:14,514 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:14,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:15,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:15,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 46 states and 58 transitions. [2023-11-12 00:07:15,052 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-11-12 00:07:15,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-12 00:07:15,053 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:15,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:15,184 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:15,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:15,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 49 states and 61 transitions. [2023-11-12 00:07:15,559 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2023-11-12 00:07:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-12 00:07:15,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:15,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:16,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 52 states and 64 transitions. [2023-11-12 00:07:16,157 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2023-11-12 00:07:16,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 00:07:16,158 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:16,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:16,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:16,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 55 states and 67 transitions. [2023-11-12 00:07:16,865 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 67 transitions. [2023-11-12 00:07:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-12 00:07:16,865 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:16,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:17,100 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:17,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:17,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 58 states and 70 transitions. [2023-11-12 00:07:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2023-11-12 00:07:17,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 00:07:17,594 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:17,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:17,801 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:18,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:18,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 61 states and 73 transitions. [2023-11-12 00:07:18,316 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2023-11-12 00:07:18,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 00:07:18,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:18,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:18,614 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:19,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 64 states and 76 transitions. [2023-11-12 00:07:19,154 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2023-11-12 00:07:19,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 00:07:19,155 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:19,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:19,443 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:20,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:20,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 67 states and 79 transitions. [2023-11-12 00:07:20,029 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2023-11-12 00:07:20,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 00:07:20,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:20,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:20,305 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 70 states and 82 transitions. [2023-11-12 00:07:20,948 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2023-11-12 00:07:20,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-12 00:07:20,948 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:20,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 247 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:21,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:21,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 73 states and 85 transitions. [2023-11-12 00:07:21,909 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 85 transitions. [2023-11-12 00:07:21,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-12 00:07:21,909 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:21,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:22,299 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:22,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:22,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 76 states and 88 transitions. [2023-11-12 00:07:22,937 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2023-11-12 00:07:22,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-12 00:07:22,938 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:22,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:23,301 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:23,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:23,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 79 states and 91 transitions. [2023-11-12 00:07:23,965 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2023-11-12 00:07:23,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-12 00:07:23,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:23,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 376 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:25,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:25,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 82 states and 94 transitions. [2023-11-12 00:07:25,049 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions. [2023-11-12 00:07:25,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-12 00:07:25,054 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:25,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:25,463 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:26,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 85 states and 97 transitions. [2023-11-12 00:07:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2023-11-12 00:07:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-12 00:07:26,273 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:26,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:26,786 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 0 proven. 477 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:27,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 88 states and 100 transitions. [2023-11-12 00:07:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2023-11-12 00:07:27,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-12 00:07:27,612 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:27,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 532 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:28,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:28,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 91 states and 103 transitions. [2023-11-12 00:07:28,975 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2023-11-12 00:07:28,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 00:07:28,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:28,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:29,470 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 590 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:30,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:30,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 94 states and 106 transitions. [2023-11-12 00:07:30,454 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2023-11-12 00:07:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-12 00:07:30,455 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:30,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 0 proven. 651 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:31,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 97 states and 109 transitions. [2023-11-12 00:07:31,862 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2023-11-12 00:07:31,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-12 00:07:31,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:31,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:33,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 100 states and 112 transitions. [2023-11-12 00:07:33,479 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2023-11-12 00:07:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-12 00:07:33,480 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:33,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 0 proven. 782 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:34,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:34,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 103 states and 115 transitions. [2023-11-12 00:07:34,880 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2023-11-12 00:07:34,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-12 00:07:34,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:34,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 0 proven. 852 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:36,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:36,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 106 states and 118 transitions. [2023-11-12 00:07:36,406 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2023-11-12 00:07:36,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 00:07:36,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:36,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:37,008 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 0 proven. 925 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:37,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:37,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 109 states and 121 transitions. [2023-11-12 00:07:37,847 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2023-11-12 00:07:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-12 00:07:37,848 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:37,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:38,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 0 proven. 1001 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:39,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 112 states and 124 transitions. [2023-11-12 00:07:39,402 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2023-11-12 00:07:39,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-12 00:07:39,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 1080 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:41,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:41,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 115 states and 127 transitions. [2023-11-12 00:07:41,082 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 127 transitions. [2023-11-12 00:07:41,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-12 00:07:41,084 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:41,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 0 proven. 1162 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:42,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 118 states and 130 transitions. [2023-11-12 00:07:42,870 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 130 transitions. [2023-11-12 00:07:42,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-12 00:07:42,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:42,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:43,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1251 backedges. 0 proven. 1247 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:44,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:44,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 121 states and 133 transitions. [2023-11-12 00:07:44,473 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 133 transitions. [2023-11-12 00:07:44,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-12 00:07:44,474 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:44,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:45,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 0 proven. 1335 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:46,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:46,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 124 states and 136 transitions. [2023-11-12 00:07:46,193 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 136 transitions. [2023-11-12 00:07:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-12 00:07:46,194 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:46,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 00:07:47,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:07:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 127 states and 139 transitions. [2023-11-12 00:07:47,970 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 139 transitions. [2023-11-12 00:07:47,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-12 00:07:47,970 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:07:47,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:07:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:07:48,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1524 backedges. 0 proven. 1520 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.