./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-simple/deep-nested.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-simple/deep-nested.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC --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 f4fa4f6a03e1cc5362361e8e2a443a39504511936859bef102e6d3337f038be8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:16:33,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:16:33,657 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-23 20:16:33,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:16:33,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:16:33,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:16:33,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:16:33,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:16:33,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:16:33,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:16:33,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:16:33,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:16:33,721 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:16:33,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:16:33,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:16:33,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:16:33,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:16:33,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:16:33,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:16:33,725 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:16:33,725 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:16:33,730 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:16:33,731 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:16:33,731 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:16:33,735 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:16:33,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:16:33,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:16:33,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:16:33,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:16:33,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:16:33,739 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:16:33,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:16:33,739 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:16:33,740 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_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4fa4f6a03e1cc5362361e8e2a443a39504511936859bef102e6d3337f038be8 [2023-11-23 20:16:34,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:16:34,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:16:34,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:16:34,115 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:16:34,115 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:16:34,116 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/loop-simple/deep-nested.c [2023-11-23 20:16:37,188 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:16:37,453 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:16:37,453 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/sv-benchmarks/c/loop-simple/deep-nested.c [2023-11-23 20:16:37,460 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/data/d88d415f4/85f1fe69e5d749668e35f2a45e4adeb1/FLAGd5873527b [2023-11-23 20:16:37,474 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/data/d88d415f4/85f1fe69e5d749668e35f2a45e4adeb1 [2023-11-23 20:16:37,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:16:37,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:16:37,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:16:37,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:16:37,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:16:37,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534b5863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37, skipping insertion in model container [2023-11-23 20:16:37,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,508 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:16:37,689 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_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/sv-benchmarks/c/loop-simple/deep-nested.c[863,876] [2023-11-23 20:16:37,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:16:37,710 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:16:37,736 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_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/sv-benchmarks/c/loop-simple/deep-nested.c[863,876] [2023-11-23 20:16:37,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:16:37,753 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:16:37,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37 WrapperNode [2023-11-23 20:16:37,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:16:37,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:16:37,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:16:37,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:16:37,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,793 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2023-11-23 20:16:37,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:16:37,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:16:37,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:16:37,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:16:37,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,826 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:16:37,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:16:37,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:16:37,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:16:37,833 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:16:37" (1/1) ... [2023-11-23 20:16:37,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:16:37,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:16:37,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:16:37,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6c9ce40-7a5a-4f5e-ae8f-b77ec77a7783/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:16:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:16:37,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:16:37,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:16:37,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:16:37,976 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:16:37,978 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:16:38,135 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:16:38,206 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:16:38,207 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 20:16:38,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:16:38 BoogieIcfgContainer [2023-11-23 20:16:38,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:16:38,210 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:16:38,210 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:16:38,221 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:16:38,222 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:16:38" (1/1) ... [2023-11-23 20:16:38,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:16:38,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:38,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 11 states and 16 transitions. [2023-11-23 20:16:38,278 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. [2023-11-23 20:16:38,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:16:38,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:38,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:16:38,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:38,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 17 states and 29 transitions. [2023-11-23 20:16:38,881 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 29 transitions. [2023-11-23 20:16:38,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:16:38,883 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:38,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:16:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:39,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 22 states and 41 transitions. [2023-11-23 20:16:39,669 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 41 transitions. [2023-11-23 20:16:39,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:16:39,672 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:39,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:16:40,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 26 states and 46 transitions. [2023-11-23 20:16:40,258 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 46 transitions. [2023-11-23 20:16:40,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 20:16:40,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:40,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:40,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:16:40,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:40,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 27 states and 48 transitions. [2023-11-23 20:16:40,559 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 48 transitions. [2023-11-23 20:16:40,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 20:16:40,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:40,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:40,900 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:16:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 32 states and 56 transitions. [2023-11-23 20:16:41,895 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 56 transitions. [2023-11-23 20:16:41,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 20:16:41,896 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:41,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:42,221 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 20:16:43,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:43,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 36 states and 64 transitions. [2023-11-23 20:16:43,090 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 64 transitions. [2023-11-23 20:16:43,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-23 20:16:43,091 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:43,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:43,409 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 20:16:44,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 39 states and 73 transitions. [2023-11-23 20:16:44,450 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 73 transitions. [2023-11-23 20:16:44,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 20:16:44,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:44,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:44,697 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 20:16:44,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:44,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 40 states and 75 transitions. [2023-11-23 20:16:44,991 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 75 transitions. [2023-11-23 20:16:44,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 20:16:44,992 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:44,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:45,442 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:16:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:46,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 44 states and 79 transitions. [2023-11-23 20:16:46,245 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2023-11-23 20:16:46,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 20:16:46,247 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:46,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:46,859 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:16:47,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 47 states and 82 transitions. [2023-11-23 20:16:47,784 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 82 transitions. [2023-11-23 20:16:47,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:16:47,785 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:47,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:48,392 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:16:49,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:49,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 50 states and 85 transitions. [2023-11-23 20:16:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 85 transitions. [2023-11-23 20:16:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 20:16:49,394 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:49,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 46 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:16:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:51,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 53 states and 88 transitions. [2023-11-23 20:16:51,047 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 88 transitions. [2023-11-23 20:16:51,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 20:16:51,048 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:51,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 3 proven. 64 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:16:52,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:52,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 56 states and 91 transitions. [2023-11-23 20:16:52,801 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 91 transitions. [2023-11-23 20:16:52,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-23 20:16:52,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:52,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:53,475 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 3 proven. 85 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:16:54,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:54,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 59 states and 94 transitions. [2023-11-23 20:16:54,806 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 94 transitions. [2023-11-23 20:16:54,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 20:16:54,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:54,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 3 proven. 109 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:16:56,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 62 states and 97 transitions. [2023-11-23 20:16:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 97 transitions. [2023-11-23 20:16:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 20:16:56,806 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:56,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:57,653 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 3 proven. 136 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:16:58,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:16:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 65 states and 100 transitions. [2023-11-23 20:16:58,948 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 100 transitions. [2023-11-23 20:16:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-23 20:16:58,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:16:58,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:16:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:16:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 3 proven. 166 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:17:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:01,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 103 transitions. [2023-11-23 20:17:01,176 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 103 transitions. [2023-11-23 20:17:01,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 20:17:01,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:01,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 3 proven. 199 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:17:03,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:03,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 71 states and 106 transitions. [2023-11-23 20:17:03,516 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 106 transitions. [2023-11-23 20:17:03,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 20:17:03,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:03,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:04,508 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 3 proven. 235 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:17:05,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:05,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 74 states and 109 transitions. [2023-11-23 20:17:05,987 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2023-11-23 20:17:05,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-23 20:17:05,988 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:05,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:07,045 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 3 proven. 274 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:17:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:08,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 77 states and 112 transitions. [2023-11-23 20:17:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 112 transitions. [2023-11-23 20:17:08,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 20:17:08,576 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:08,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:09,615 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 3 proven. 316 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:17:11,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:11,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 80 states and 115 transitions. [2023-11-23 20:17:11,347 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2023-11-23 20:17:11,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 20:17:11,348 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:11,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 3 proven. 361 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:17:14,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:14,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 83 states and 118 transitions. [2023-11-23 20:17:14,205 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2023-11-23 20:17:14,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 20:17:14,206 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:14,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:15,367 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 409 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:17:17,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 86 states and 121 transitions. [2023-11-23 20:17:17,195 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2023-11-23 20:17:17,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 20:17:17,196 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:17,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 3 proven. 460 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:17:20,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:20,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 89 states and 124 transitions. [2023-11-23 20:17:20,300 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 124 transitions. [2023-11-23 20:17:20,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-23 20:17:20,301 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:20,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:21,602 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 3 proven. 514 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 20:17:23,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 92 states and 127 transitions. [2023-11-23 20:17:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 127 transitions. [2023-11-23 20:17:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 20:17:23,580 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:23,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:24,906 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 3 proven. 571 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.