./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/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_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f2e994fbd4308fecf33fa0184f8cdc44b0ef95d4019fc8f460440561d10a29a6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:59:09,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:59:09,819 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-11 23:59:09,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:59:09,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:59:09,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:59:09,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:59:09,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:59:09,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:59:09,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:59:09,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:59:09,876 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-11 23:59:09,877 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-11 23:59:09,878 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-11 23:59:09,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:59:09,879 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:59:09,880 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:59:09,880 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:59:09,881 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:59:09,882 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:59:09,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:59:09,883 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:59:09,883 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:59:09,884 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:59:09,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:59:09,885 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_958b3418-fd03-49cd-a6c3-26444e8973d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f2e994fbd4308fecf33fa0184f8cdc44b0ef95d4019fc8f460440561d10a29a6 [2023-11-11 23:59:10,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:59:10,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:59:10,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:59:10,246 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:59:10,247 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:59:10,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i [2023-11-11 23:59:13,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:59:13,736 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:59:13,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/sv-benchmarks/c/termination-15/cstrcspn_mixed_alloca.i [2023-11-11 23:59:13,749 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/data/c9b5fecdc/cd0bbdcb8aa24479850063d30e7912b5/FLAG90035bab7 [2023-11-11 23:59:14,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/data/c9b5fecdc/cd0bbdcb8aa24479850063d30e7912b5 [2023-11-11 23:59:14,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:59:14,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:59:14,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:59:14,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:59:14,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:59:14,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d49e88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14, skipping insertion in model container [2023-11-11 23:59:14,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,105 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:59:14,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:59:14,436 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:59:14,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:59:14,516 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:59:14,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14 WrapperNode [2023-11-11 23:59:14,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:59:14,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:59:14,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:59:14,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:59:14,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,578 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2023-11-11 23:59:14,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:59:14,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:59:14,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:59:14,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:59:14,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:59:14,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:59:14,633 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:59:14,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:59:14,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:59:14" (1/1) ... [2023-11-11 23:59:14,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:59:14,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:59:14,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:59:14,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958b3418-fd03-49cd-a6c3-26444e8973d2/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:59:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:59:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:59:14,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:59:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:59:14,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:59:14,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:59:14,856 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:59:14,858 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:59:15,146 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:59:15,209 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:59:15,210 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-11 23:59:15,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:59:15 BoogieIcfgContainer [2023-11-11 23:59:15,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:59:15,213 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:59:15,214 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:59:15,224 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:59:15,224 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:59:15" (1/1) ... [2023-11-11 23:59:15,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:59:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:15,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2023-11-11 23:59:15,290 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-11-11 23:59:15,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-11 23:59:15,292 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:15,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:15,639 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 23:59:15,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:15,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 35 transitions. [2023-11-11 23:59:15,689 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-11-11 23:59:15,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-11 23:59:15,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:15,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:15,992 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 23:59:16,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:16,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2023-11-11 23:59:16,153 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-11 23:59:16,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:59:16,154 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:16,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:16,328 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 23:59:16,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:16,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-11 23:59:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-11 23:59:16,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:59:16,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:16,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:16,719 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 23:59:17,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2023-11-11 23:59:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-11 23:59:17,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-11 23:59:17,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:17,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:17,191 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 23:59:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-11 23:59:17,387 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-11 23:59:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-11 23:59:17,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:17,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:17,615 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 23:59:18,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:18,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2023-11-11 23:59:18,072 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-11-11 23:59:18,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:59:18,073 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:18,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:18,110 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 23:59:18,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2023-11-11 23:59:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-11 23:59:18,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:59:18,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:18,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:18,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:18,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2023-11-11 23:59:18,318 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2023-11-11 23:59:18,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:59:18,318 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:18,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:18,509 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 23:59:19,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2023-11-11 23:59:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2023-11-11 23:59:19,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:59:19,068 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:19,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:19,556 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 23:59:21,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:21,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2023-11-11 23:59:21,665 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2023-11-11 23:59:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:59:21,666 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:21,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:21,965 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 23:59:23,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 43 states and 62 transitions. [2023-11-11 23:59:23,578 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 62 transitions. [2023-11-11 23:59:23,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:59:23,579 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:23,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:23,604 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 23:59:23,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:23,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 42 states and 61 transitions. [2023-11-11 23:59:23,627 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2023-11-11 23:59:23,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:59:23,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:23,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:23,665 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 23:59:23,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:23,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 41 states and 60 transitions. [2023-11-11 23:59:23,686 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2023-11-11 23:59:23,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:59:23,688 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:23,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:23,717 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 23:59:23,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2023-11-11 23:59:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-11-11 23:59:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:59:23,747 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:23,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:23,794 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 23:59:23,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 39 states and 57 transitions. [2023-11-11 23:59:23,823 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2023-11-11 23:59:23,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:59:23,824 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:23,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:24,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2023-11-11 23:59:24,331 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-11-11 23:59:24,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:59:24,331 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:24,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:25,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:30,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:30,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 47 states and 71 transitions. [2023-11-11 23:59:30,064 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 71 transitions. [2023-11-11 23:59:30,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:59:30,065 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:30,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:31,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:38,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:38,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 56 states and 90 transitions. [2023-11-11 23:59:38,433 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 90 transitions. [2023-11-11 23:59:38,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:59:38,434 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:38,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:38,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:40,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:40,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 61 states and 100 transitions. [2023-11-11 23:59:40,868 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 100 transitions. [2023-11-11 23:59:40,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:59:40,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:40,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:41,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:41,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 62 states and 101 transitions. [2023-11-11 23:59:41,774 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 101 transitions. [2023-11-11 23:59:41,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:59:41,775 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:41,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:41,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:59:42,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 63 states and 102 transitions. [2023-11-11 23:59:42,415 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 102 transitions. [2023-11-11 23:59:42,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:59:42,416 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:42,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:43,488 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 23:59:49,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:49,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 69 states and 113 transitions. [2023-11-11 23:59:49,274 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 113 transitions. [2023-11-11 23:59:49,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-11 23:59:49,275 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:49,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:49,426 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 23:59:55,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 76 states and 126 transitions. [2023-11-11 23:59:55,194 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 126 transitions. [2023-11-11 23:59:55,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-11 23:59:55,195 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:55,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-11 23:59:55,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:59:55,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 75 states and 125 transitions. [2023-11-11 23:59:55,945 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 125 transitions. [2023-11-11 23:59:55,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:59:55,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:59:55,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:59:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:59:57,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:00:04,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:00:04,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 80 states and 141 transitions. [2023-11-12 00:00:04,437 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 141 transitions. [2023-11-12 00:00:04,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:00:04,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:00:04,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:00:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:00:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.