./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:49:58,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:49:58,958 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-11 23:49:58,963 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:49:58,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:49:59,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:49:59,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-11 23:49:59,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-11 23:49:59,013 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:49:59,014 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:49:59,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:49:59,015 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-11 23:49:59,016 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:49:59,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:49:59,017 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:49:59,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:49:59,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-11 23:49:59,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:49:59,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-11 23:49:59,020 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:49:59,020 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-11 23:49:59,021 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:49:59,021 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:49:59,022 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:49:59,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:49:59,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:49:59,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:49:59,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:49:59,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-11 23:49:59,025 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:49:59,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:49:59,025 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-11 23:49:59,026 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_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c [2023-11-11 23:49:59,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:49:59,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:49:59,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:49:59,420 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:49:59,421 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:49:59,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2023-11-11 23:50:02,542 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:50:02,897 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:50:02,901 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2023-11-11 23:50:02,918 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/data/6b21c2ca2/03ea95907bb64ef893f7b582b98270e2/FLAG50443c634 [2023-11-11 23:50:03,139 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/data/6b21c2ca2/03ea95907bb64ef893f7b582b98270e2 [2023-11-11 23:50:03,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:50:03,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:50:03,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:03,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:50:03,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:50:03,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f16b5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03, skipping insertion in model container [2023-11-11 23:50:03,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,209 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:50:03,490 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2023-11-11 23:50:03,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:03,551 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:50:03,617 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2023-11-11 23:50:03,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:50:03,691 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:50:03,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03 WrapperNode [2023-11-11 23:50:03,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:50:03,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:03,694 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:50:03,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:50:03,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,776 INFO L138 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 289 [2023-11-11 23:50:03,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:50:03,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:50:03,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:50:03,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:50:03,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,813 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:50:03,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:50:03,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:50:03,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:50:03,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:50:03" (1/1) ... [2023-11-11 23:50:03,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:50:03,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:50:03,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:50:03,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757a4091-0286-41a3-96a8-24598b270317/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:50:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:50:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2023-11-11 23:50:03,931 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2023-11-11 23:50:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-11-11 23:50:03,931 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-11-11 23:50:03,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:50:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-11 23:50:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-11 23:50:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:50:03,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-11 23:50:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-11 23:50:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:50:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-11 23:50:03,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:50:03,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:50:04,117 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:50:04,120 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:50:04,693 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:50:04,884 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:50:04,884 INFO L302 CfgBuilder]: Removed 33 assume(true) statements. [2023-11-11 23:50:04,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:04 BoogieIcfgContainer [2023-11-11 23:50:04,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:50:04,892 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:50:04,892 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:50:04,903 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:50:04,903 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:50:04" (1/1) ... [2023-11-11 23:50:04,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:50:04,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:04,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 80 states and 146 transitions. [2023-11-11 23:50:04,989 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 146 transitions. [2023-11-11 23:50:04,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:50:04,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:04,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:05,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:05,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 79 states and 129 transitions. [2023-11-11 23:50:05,176 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 129 transitions. [2023-11-11 23:50:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:50:05,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:05,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:05,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 82 states and 132 transitions. [2023-11-11 23:50:05,367 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 132 transitions. [2023-11-11 23:50:05,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:50:05,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:05,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:05,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 81 states and 130 transitions. [2023-11-11 23:50:05,753 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 130 transitions. [2023-11-11 23:50:05,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:50:05,754 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:05,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:50:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:05,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 81 states and 127 transitions. [2023-11-11 23:50:05,864 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 127 transitions. [2023-11-11 23:50:05,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:50:05,864 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:05,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:06,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:06,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 84 states and 130 transitions. [2023-11-11 23:50:06,237 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 130 transitions. [2023-11-11 23:50:06,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:50:06,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:06,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:06,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:06,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:06,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 85 states and 131 transitions. [2023-11-11 23:50:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 131 transitions. [2023-11-11 23:50:06,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:50:06,323 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:06,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:06,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:50:06,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:06,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 88 states and 132 transitions. [2023-11-11 23:50:06,955 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 132 transitions. [2023-11-11 23:50:06,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:50:06,956 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:06,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:06,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:07,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:50:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:07,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 91 states and 133 transitions. [2023-11-11 23:50:07,215 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 133 transitions. [2023-11-11 23:50:07,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-11 23:50:07,216 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:07,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:08,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:08,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 100 states and 143 transitions. [2023-11-11 23:50:08,942 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2023-11-11 23:50:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-11 23:50:08,943 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:08,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:09,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:09,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:09,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 107 states and 149 transitions. [2023-11-11 23:50:09,830 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2023-11-11 23:50:09,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-11 23:50:09,830 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:09,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:10,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:11,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:11,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 114 states and 156 transitions. [2023-11-11 23:50:11,749 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 156 transitions. [2023-11-11 23:50:11,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-11 23:50:11,752 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:11,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:12,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:15,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:15,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 126 states and 170 transitions. [2023-11-11 23:50:15,867 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 170 transitions. [2023-11-11 23:50:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-11 23:50:15,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:15,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:50:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:20,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 138 states and 185 transitions. [2023-11-11 23:50:20,176 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 185 transitions. [2023-11-11 23:50:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-11 23:50:20,185 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:20,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:20,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:50:20,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:20,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 138 states and 182 transitions. [2023-11-11 23:50:20,233 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 182 transitions. [2023-11-11 23:50:20,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-11 23:50:20,240 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:20,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:25,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:25,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 156 states and 207 transitions. [2023-11-11 23:50:25,434 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 207 transitions. [2023-11-11 23:50:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-11 23:50:25,435 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:25,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:50:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 164 states and 217 transitions. [2023-11-11 23:50:28,329 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 217 transitions. [2023-11-11 23:50:28,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-11 23:50:28,330 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:28,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:28,449 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-11 23:50:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 165 states and 217 transitions. [2023-11-11 23:50:28,491 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 217 transitions. [2023-11-11 23:50:28,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-11 23:50:28,492 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:28,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:28,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:50:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:30,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 167 states and 220 transitions. [2023-11-11 23:50:30,391 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 220 transitions. [2023-11-11 23:50:30,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-11 23:50:30,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:30,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:31,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:50:33,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 170 states and 221 transitions. [2023-11-11 23:50:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 221 transitions. [2023-11-11 23:50:33,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-11 23:50:33,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:33,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:33,644 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-11 23:50:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:34,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 166 states and 216 transitions. [2023-11-11 23:50:34,806 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 216 transitions. [2023-11-11 23:50:34,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-11 23:50:34,807 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:34,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:34,979 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-11 23:50:35,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 162 states and 211 transitions. [2023-11-11 23:50:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 211 transitions. [2023-11-11 23:50:35,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-11 23:50:35,015 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:35,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:35,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:35,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:35,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 163 states and 213 transitions. [2023-11-11 23:50:35,478 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 213 transitions. [2023-11-11 23:50:35,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-11 23:50:35,479 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:35,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:50:44,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:50:44,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 179 states and 234 transitions. [2023-11-11 23:50:44,576 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 234 transitions. [2023-11-11 23:50:44,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-11 23:50:44,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:50:44,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:50:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:50:46,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.