./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/ps4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 197bb91209feafbd50d8f722faabb2ddec80478a21cb1768541ed232586540b8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:34:58,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:34:58,478 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 03:34:58,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:34:58,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:34:58,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:34:58,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:34:58,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:34:58,509 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:34:58,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:34:58,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:34:58,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:34:58,512 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:34:58,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:34:58,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:34:58,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:34:58,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:34:58,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:34:58,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:34:58,515 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:34:58,516 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:34:58,517 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:34:58,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:34:58,518 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:34:58,518 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:34:58,519 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:34:58,519 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:34:58,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:34:58,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:34:58,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:34:58,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:34:58,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:34:58,522 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:34:58,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:34:58,523 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:34:58,523 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_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 197bb91209feafbd50d8f722faabb2ddec80478a21cb1768541ed232586540b8 [2023-11-19 03:34:58,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:34:58,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:34:58,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:34:58,802 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:34:58,803 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:34:58,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench/ps4.c [2023-11-19 03:35:02,110 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:35:02,358 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:35:02,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/sv-benchmarks/c/nla-digbench/ps4.c [2023-11-19 03:35:02,367 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/data/da17e7e4c/9e2ab6954ab443f3b36ed6369f9bda7e/FLAG08466ed5f [2023-11-19 03:35:02,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/data/da17e7e4c/9e2ab6954ab443f3b36ed6369f9bda7e [2023-11-19 03:35:02,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:35:02,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:35:02,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:35:02,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:35:02,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:35:02,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@676891e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02, skipping insertion in model container [2023-11-19 03:35:02,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,421 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:35:02,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:35:02,596 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:35:02,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:35:02,631 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:35:02,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02 WrapperNode [2023-11-19 03:35:02,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:35:02,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:35:02,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:35:02,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:35:02,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,649 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,684 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 106 [2023-11-19 03:35:02,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:35:02,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:35:02,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:35:02,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:35:02,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,730 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:35:02,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:35:02,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:35:02,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:35:02,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:02" (1/1) ... [2023-11-19 03:35:02,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:35:02,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:35:02,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:35:02,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e5b2987-aa5a-4af4-8407-0085fd210317/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:35:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:35:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:35:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:35:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:35:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:35:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:35:02,888 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:35:02,890 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:35:03,309 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:35:03,341 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:35:03,342 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:35:03,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:35:03 BoogieIcfgContainer [2023-11-19 03:35:03,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:35:03,349 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:35:03,349 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:35:03,364 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:35:03,365 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:35:03" (1/1) ... [2023-11-19 03:35:03,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:35:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:03,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 130 states and 133 transitions. [2023-11-19 03:35:03,475 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 133 transitions. [2023-11-19 03:35:03,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:35:03,476 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:03,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:03,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:35:03,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:03,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:03,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 130 states and 132 transitions. [2023-11-19 03:35:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 132 transitions. [2023-11-19 03:35:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:35:03,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:03,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:03,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 132 states and 135 transitions. [2023-11-19 03:35:03,892 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 135 transitions. [2023-11-19 03:35:03,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:35:03,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:03,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:03,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:03,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 133 states and 136 transitions. [2023-11-19 03:35:03,980 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 136 transitions. [2023-11-19 03:35:03,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:35:03,980 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:03,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:04,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 132 states and 135 transitions. [2023-11-19 03:35:04,026 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 135 transitions. [2023-11-19 03:35:04,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:35:04,026 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:04,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:04,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:04,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:04,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:04,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 137 states and 142 transitions. [2023-11-19 03:35:04,176 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 142 transitions. [2023-11-19 03:35:04,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:35:04,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:04,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:04,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:04,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:04,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:04,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:04,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 138 states and 143 transitions. [2023-11-19 03:35:04,224 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 143 transitions. [2023-11-19 03:35:04,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:35:04,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:04,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:04,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:04,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:04,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:04,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 139 states and 144 transitions. [2023-11-19 03:35:04,281 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 144 transitions. [2023-11-19 03:35:04,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:35:04,281 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:04,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:04,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:35:04,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:04,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 138 states and 143 transitions. [2023-11-19 03:35:04,334 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 143 transitions. [2023-11-19 03:35:04,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:35:04,335 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:04,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:04,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:04,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:04,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:04,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:04,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 140 states and 145 transitions. [2023-11-19 03:35:04,421 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 145 transitions. [2023-11-19 03:35:04,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:35:04,422 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:04,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:04,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:04,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:04,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:04,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:04,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 147 states and 154 transitions. [2023-11-19 03:35:04,649 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 154 transitions. [2023-11-19 03:35:04,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:35:04,649 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:04,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:04,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:35:04,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:04,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:04,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:04,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 155 states and 163 transitions. [2023-11-19 03:35:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 163 transitions. [2023-11-19 03:35:05,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:35:05,002 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:05,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:05,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:05,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:05,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:05,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 156 states and 165 transitions. [2023-11-19 03:35:05,112 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 165 transitions. [2023-11-19 03:35:05,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 03:35:05,112 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:05,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:05,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:05,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:05,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:05,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 158 states and 168 transitions. [2023-11-19 03:35:05,237 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2023-11-19 03:35:05,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 03:35:05,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:05,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:05,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:35:05,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:05,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:05,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:05,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 157 states and 167 transitions. [2023-11-19 03:35:05,274 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 167 transitions. [2023-11-19 03:35:05,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 03:35:05,276 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:05,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:05,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:05,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:05,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:05,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 160 states and 170 transitions. [2023-11-19 03:35:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 170 transitions. [2023-11-19 03:35:05,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:35:05,372 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:05,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:05,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:05,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:05,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:05,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:05,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 161 states and 171 transitions. [2023-11-19 03:35:05,445 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 171 transitions. [2023-11-19 03:35:05,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 03:35:05,446 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:05,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:05,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:05,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:05,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 162 states and 172 transitions. [2023-11-19 03:35:05,516 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 172 transitions. [2023-11-19 03:35:05,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:35:05,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:05,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:05,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:35:05,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:05,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:05,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 170 states and 180 transitions. [2023-11-19 03:35:05,739 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 180 transitions. [2023-11-19 03:35:05,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 03:35:05,740 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:05,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:05,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:35:05,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:05,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 178 states and 189 transitions. [2023-11-19 03:35:05,954 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 189 transitions. [2023-11-19 03:35:05,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 03:35:05,954 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:05,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:05,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:35:05,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:05,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:05,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 177 states and 188 transitions. [2023-11-19 03:35:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 188 transitions. [2023-11-19 03:35:06,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 03:35:06,000 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:06,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:06,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:06,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:06,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 179 states and 190 transitions. [2023-11-19 03:35:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 190 transitions. [2023-11-19 03:35:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:35:06,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:06,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:06,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:35:06,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:06,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:06,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:06,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 183 states and 195 transitions. [2023-11-19 03:35:06,359 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 195 transitions. [2023-11-19 03:35:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:35:06,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:06,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:06,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:35:06,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:06,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 187 states and 200 transitions. [2023-11-19 03:35:06,550 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 200 transitions. [2023-11-19 03:35:06,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 03:35:06,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:06,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:06,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:06,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:06,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:06,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:06,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 190 states and 206 transitions. [2023-11-19 03:35:06,652 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 206 transitions. [2023-11-19 03:35:06,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 03:35:06,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:06,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:06,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:06,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:06,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 216 states and 238 transitions. [2023-11-19 03:35:07,139 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 238 transitions. [2023-11-19 03:35:07,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 03:35:07,143 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:07,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:07,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:07,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:07,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 217 states and 239 transitions. [2023-11-19 03:35:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 239 transitions. [2023-11-19 03:35:07,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 03:35:07,239 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:07,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:07,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:07,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:07,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:07,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 244 states and 272 transitions. [2023-11-19 03:35:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 272 transitions. [2023-11-19 03:35:07,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 03:35:07,812 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:07,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:07,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:35:07,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:07,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:07,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:07,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 243 states and 271 transitions. [2023-11-19 03:35:07,862 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 271 transitions. [2023-11-19 03:35:07,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 03:35:07,863 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:07,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:07,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:07,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 246 states and 277 transitions. [2023-11-19 03:35:08,191 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 277 transitions. [2023-11-19 03:35:08,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:35:08,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:08,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:08,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:08,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:08,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:08,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 248 states and 279 transitions. [2023-11-19 03:35:08,587 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 279 transitions. [2023-11-19 03:35:08,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:35:08,587 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:08,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:08,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:08,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:09,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:09,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 252 states and 286 transitions. [2023-11-19 03:35:09,046 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 286 transitions. [2023-11-19 03:35:09,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:35:09,046 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:09,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:09,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:09,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:09,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:09,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 255 states and 289 transitions. [2023-11-19 03:35:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 289 transitions. [2023-11-19 03:35:09,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:35:09,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:09,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:09,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:35:09,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:09,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:09,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:09,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 254 states and 288 transitions. [2023-11-19 03:35:09,244 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 288 transitions. [2023-11-19 03:35:09,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:35:09,245 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:09,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:09,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:09,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:09,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:09,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:09,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 255 states and 289 transitions. [2023-11-19 03:35:09,327 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 289 transitions. [2023-11-19 03:35:09,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:35:09,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:09,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:35:09,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:09,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:09,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:09,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 261 states and 297 transitions. [2023-11-19 03:35:09,802 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 297 transitions. [2023-11-19 03:35:09,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 03:35:09,802 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:09,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:09,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:09,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:09,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 262 states and 299 transitions. [2023-11-19 03:35:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 299 transitions. [2023-11-19 03:35:09,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 03:35:09,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:09,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:09,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:09,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:10,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:10,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 264 states and 301 transitions. [2023-11-19 03:35:10,141 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 301 transitions. [2023-11-19 03:35:10,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 03:35:10,142 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:10,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:10,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:10,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:10,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:10,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 272 states and 312 transitions. [2023-11-19 03:35:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 312 transitions. [2023-11-19 03:35:10,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 03:35:10,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:10,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:10,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:10,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:10,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:11,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:11,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 284 states and 330 transitions. [2023-11-19 03:35:11,455 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 330 transitions. [2023-11-19 03:35:11,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 03:35:11,457 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:11,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:11,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:11,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:11,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:12,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:12,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 293 states and 342 transitions. [2023-11-19 03:35:12,036 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 342 transitions. [2023-11-19 03:35:12,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 03:35:12,037 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:12,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:12,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:12,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:13,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:13,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 305 states and 362 transitions. [2023-11-19 03:35:13,254 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 362 transitions. [2023-11-19 03:35:13,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 03:35:13,254 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:13,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:13,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:35:13,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:13,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:13,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 304 states and 361 transitions. [2023-11-19 03:35:13,309 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 361 transitions. [2023-11-19 03:35:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 03:35:13,309 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:13,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:13,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:13,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:14,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:14,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 309 states and 367 transitions. [2023-11-19 03:35:14,033 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 367 transitions. [2023-11-19 03:35:14,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 03:35:14,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:14,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:14,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 03:35:14,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:15,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 310 states and 366 transitions. [2023-11-19 03:35:15,127 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 366 transitions. [2023-11-19 03:35:15,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-19 03:35:15,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:15,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:15,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:15,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:18,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-19 03:35:19,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:19,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 316 states and 373 transitions. [2023-11-19 03:35:19,066 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 373 transitions. [2023-11-19 03:35:19,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 03:35:19,066 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:19,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:19,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:35:19,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:20,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:20,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 319 states and 379 transitions. [2023-11-19 03:35:20,100 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 379 transitions. [2023-11-19 03:35:20,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 03:35:20,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:20,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:20,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:20,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:20,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:21,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 326 states and 387 transitions. [2023-11-19 03:35:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 387 transitions. [2023-11-19 03:35:21,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 03:35:21,697 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:21,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:21,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:35:21,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:21,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:21,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 325 states and 386 transitions. [2023-11-19 03:35:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 386 transitions. [2023-11-19 03:35:21,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 03:35:21,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:21,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:21,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:21,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:21,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:22,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:22,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 330 states and 394 transitions. [2023-11-19 03:35:22,463 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 394 transitions. [2023-11-19 03:35:22,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:35:22,463 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:22,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:22,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:22,489 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:22,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:24,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:24,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 339 states and 404 transitions. [2023-11-19 03:35:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 404 transitions. [2023-11-19 03:35:24,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 03:35:24,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:24,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:24,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:24,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:25,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:25,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 345 states and 413 transitions. [2023-11-19 03:35:25,771 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 413 transitions. [2023-11-19 03:35:25,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-19 03:35:25,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:25,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:25,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:25,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:26,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:26,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 355 states and 424 transitions. [2023-11-19 03:35:26,690 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 424 transitions. [2023-11-19 03:35:26,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:35:26,690 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:26,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:26,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:26,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:27,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:27,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 362 states and 434 transitions. [2023-11-19 03:35:27,911 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 434 transitions. [2023-11-19 03:35:27,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 03:35:27,912 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:27,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:27,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:27,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:28,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:28,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:28,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 361 states and 433 transitions. [2023-11-19 03:35:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 433 transitions. [2023-11-19 03:35:28,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 03:35:28,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:28,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:28,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:28,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:29,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:29,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 360 states and 432 transitions. [2023-11-19 03:35:29,361 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 432 transitions. [2023-11-19 03:35:29,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 03:35:29,363 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:29,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:29,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:35:29,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:29,455 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:30,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:30,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 369 states and 445 transitions. [2023-11-19 03:35:30,715 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 445 transitions. [2023-11-19 03:35:30,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 03:35:30,716 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:30,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:30,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:30,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:30,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 368 states and 444 transitions. [2023-11-19 03:35:31,382 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 444 transitions. [2023-11-19 03:35:31,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 03:35:31,383 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:31,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:31,407 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:35:31,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:32,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:32,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 375 states and 451 transitions. [2023-11-19 03:35:32,767 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 451 transitions. [2023-11-19 03:35:32,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 03:35:32,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:32,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:32,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:35:32,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:32,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:32,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 374 states and 450 transitions. [2023-11-19 03:35:32,827 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 450 transitions. [2023-11-19 03:35:32,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-19 03:35:32,828 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:32,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:32,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:32,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:32,866 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 03:35:33,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:33,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 376 states and 456 transitions. [2023-11-19 03:35:33,523 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 456 transitions. [2023-11-19 03:35:33,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 03:35:33,524 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:33,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:33,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:33,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:34,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:34,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 375 states and 455 transitions. [2023-11-19 03:35:34,867 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 455 transitions. [2023-11-19 03:35:34,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 03:35:34,868 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:34,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:34,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:34,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:34,995 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:35,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:35,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 377 states and 458 transitions. [2023-11-19 03:35:35,575 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 458 transitions. [2023-11-19 03:35:35,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-19 03:35:35,576 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:35,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:35,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:35,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:35,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:36,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:36,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 376 states and 457 transitions. [2023-11-19 03:35:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 457 transitions. [2023-11-19 03:35:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 03:35:36,845 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:36,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:36,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:35:36,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:36,952 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:37,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 380 states and 463 transitions. [2023-11-19 03:35:37,661 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 463 transitions. [2023-11-19 03:35:37,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 03:35:37,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:37,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:37,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:37,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:39,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:39,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 379 states and 462 transitions. [2023-11-19 03:35:39,021 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 462 transitions. [2023-11-19 03:35:39,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 03:35:39,021 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:39,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:39,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:39,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:39,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:42,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:42,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 397 states and 481 transitions. [2023-11-19 03:35:42,583 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 481 transitions. [2023-11-19 03:35:42,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 03:35:42,584 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:42,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:42,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:35:42,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:42,714 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:42,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:42,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 399 states and 483 transitions. [2023-11-19 03:35:42,751 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 483 transitions. [2023-11-19 03:35:42,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 03:35:42,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:42,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:42,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:42,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:42,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:45,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:45,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 398 states and 482 transitions. [2023-11-19 03:35:45,563 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 482 transitions. [2023-11-19 03:35:45,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 03:35:45,564 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:45,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:45,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:35:45,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:45,899 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:46,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:46,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 399 states and 484 transitions. [2023-11-19 03:35:46,284 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 484 transitions. [2023-11-19 03:35:46,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 03:35:46,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:46,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:46,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:35:46,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:46,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:46,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 398 states and 483 transitions. [2023-11-19 03:35:46,345 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 483 transitions. [2023-11-19 03:35:46,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 03:35:46,345 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:46,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:46,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:35:46,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:47,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:47,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 400 states and 486 transitions. [2023-11-19 03:35:47,241 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 486 transitions. [2023-11-19 03:35:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 03:35:47,241 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:47,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:47,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:47,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:48,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 399 states and 485 transitions. [2023-11-19 03:35:48,832 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 485 transitions. [2023-11-19 03:35:48,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 03:35:48,832 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:48,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:48,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:35:48,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:50,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 408 states and 495 transitions. [2023-11-19 03:35:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 495 transitions. [2023-11-19 03:35:50,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 03:35:50,737 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:50,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:50,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:35:50,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:35:51,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.