./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2c_insert_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_insert_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL --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 1b81f923e96224472f8219a473f794261ff02356a47c6b09b527f0fc600725a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:49:09,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:49:09,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:49:09,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:49:09,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:49:09,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:49:09,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:49:09,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:49:09,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:49:09,794 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:49:09,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:49:09,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:49:09,796 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:49:09,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:49:09,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:49:09,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:49:09,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:49:09,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:49:09,799 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:49:09,799 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:49:09,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:49:09,800 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:49:09,801 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:49:09,801 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:49:09,802 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:49:09,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:49:09,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:49:09,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:49:09,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:49:09,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:49:09,804 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:49:09,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:49:09,805 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:49:09,805 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_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b81f923e96224472f8219a473f794261ff02356a47c6b09b527f0fc600725a8 [2023-11-19 02:49:10,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:49:10,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:49:10,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:49:10,144 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:49:10,145 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:49:10,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/list-simple/dll2c_insert_unequal.i [2023-11-19 02:49:13,238 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:49:13,516 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:49:13,517 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i [2023-11-19 02:49:13,536 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/data/d13d114fe/dd9bfd7ce16a4314841a3e2714bd3fa8/FLAG913bd5fdf [2023-11-19 02:49:13,554 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/data/d13d114fe/dd9bfd7ce16a4314841a3e2714bd3fa8 [2023-11-19 02:49:13,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:49:13,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:49:13,566 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:49:13,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:49:13,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:49:13,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:49:13" (1/1) ... [2023-11-19 02:49:13,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691a1724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:13, skipping insertion in model container [2023-11-19 02:49:13,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:49:13" (1/1) ... [2023-11-19 02:49:13,622 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:49:14,027 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_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i[25148,25161] [2023-11-19 02:49:14,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:49:14,045 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:49:14,097 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_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i[25148,25161] [2023-11-19 02:49:14,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:49:14,130 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:49:14,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14 WrapperNode [2023-11-19 02:49:14,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:49:14,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:49:14,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:49:14,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:49:14,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,185 INFO L138 Inliner]: procedures = 127, calls = 58, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 187 [2023-11-19 02:49:14,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:49:14,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:49:14,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:49:14,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:49:14,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,214 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,227 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:49:14,228 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:49:14,229 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:49:14,229 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:49:14,230 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:14" (1/1) ... [2023-11-19 02:49:14,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:49:14,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:49:14,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:49:14,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6375c6d-e923-4516-ab9b-1a7c5cf7d7c9/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:49:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-11-19 02:49:14,312 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-11-19 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 02:49:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 02:49:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:49:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 02:49:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:49:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:49:14,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:49:14,447 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:49:14,449 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:49:14,854 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:49:15,033 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:49:15,034 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 02:49:15,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:49:15 BoogieIcfgContainer [2023-11-19 02:49:15,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:49:15,043 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:49:15,043 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:49:15,053 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:49:15,054 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:49:15" (1/1) ... [2023-11-19 02:49:15,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:49:15,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:49:15,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2023-11-19 02:49:15,127 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2023-11-19 02:49:15,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 02:49:15,132 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:49:15,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:49:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:49:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 02:49:15,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:49:15,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 42 transitions. [2023-11-19 02:49:15,996 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2023-11-19 02:49:15,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 02:49:15,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:49:15,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:49:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:49:16,525 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 02:49:16,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:49:16,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 31 states and 43 transitions. [2023-11-19 02:49:16,943 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2023-11-19 02:49:16,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:49:16,944 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:49:16,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:49:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:49:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 02:49:29,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:49:29,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 40 states and 64 transitions. [2023-11-19 02:49:29,905 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 64 transitions. [2023-11-19 02:49:29,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:49:29,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:49:29,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:49:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:49:38,431 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 02:49:46,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:49:46,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 45 states and 79 transitions. [2023-11-19 02:49:46,839 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2023-11-19 02:49:46,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:49:46,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:49:46,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:49:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:49:50,175 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 02:49:51,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:49:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 45 states and 79 transitions. [2023-11-19 02:49:51,724 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 79 transitions. [2023-11-19 02:49:51,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:49:51,726 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:49:51,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:49:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat