./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2c_prepend_equal.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_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/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_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_prepend_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/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_303be2ab-1467-4c23-85ed-755185d606e6/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 e0e4fff172a515598d076941b225a1a1f31b97f5ac14127a866784b10a4e3537 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:08:14,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:08:14,154 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:08:14,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:08:14,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:08:14,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:08:14,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:08:14,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:08:14,201 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:08:14,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:08:14,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:08:14,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:08:14,203 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:08:14,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:08:14,205 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:08:14,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:08:14,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:08:14,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:08:14,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:08:14,207 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:08:14,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:08:14,209 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:08:14,209 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:08:14,210 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:08:14,210 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:08:14,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:08:14,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:08:14,212 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:08:14,212 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:08:14,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:08:14,213 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:08:14,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:08:14,214 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:08:14,214 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_303be2ab-1467-4c23-85ed-755185d606e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0e4fff172a515598d076941b225a1a1f31b97f5ac14127a866784b10a4e3537 [2023-11-19 04:08:14,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:08:14,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:08:14,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:08:14,635 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:08:14,636 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:08:14,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/list-simple/dll2c_prepend_equal.i [2023-11-19 04:08:17,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:08:18,028 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:08:18,037 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/sv-benchmarks/c/list-simple/dll2c_prepend_equal.i [2023-11-19 04:08:18,058 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL/data/af581caa3/04e9bdf680f24000a817e2e241498910/FLAGc857183bb [2023-11-19 04:08:18,072 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL/data/af581caa3/04e9bdf680f24000a817e2e241498910 [2023-11-19 04:08:18,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:08:18,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:08:18,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:08:18,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:08:18,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:08:18,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df48ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18, skipping insertion in model container [2023-11-19 04:08:18,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,137 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:08:18,439 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_303be2ab-1467-4c23-85ed-755185d606e6/sv-benchmarks/c/list-simple/dll2c_prepend_equal.i[24640,24653] [2023-11-19 04:08:18,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:08:18,462 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:08:18,546 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_303be2ab-1467-4c23-85ed-755185d606e6/sv-benchmarks/c/list-simple/dll2c_prepend_equal.i[24640,24653] [2023-11-19 04:08:18,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:08:18,592 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:08:18,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18 WrapperNode [2023-11-19 04:08:18,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:08:18,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:08:18,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:08:18,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:08:18,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,649 INFO L138 Inliner]: procedures = 127, calls = 47, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 137 [2023-11-19 04:08:18,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:08:18,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:08:18,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:08:18,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:08:18,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:08:18,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:08:18,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:08:18,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:08:18,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:18" (1/1) ... [2023-11-19 04:08:18,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:08:18,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:08:18,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:08:18,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_303be2ab-1467-4c23-85ed-755185d606e6/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:08:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:08:18,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:08:18,791 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-11-19 04:08:18,791 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-11-19 04:08:18,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:08:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:08:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:08:18,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:08:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:08:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:08:18,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:08:18,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:08:18,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:08:18,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:08:18,957 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:08:18,960 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:08:19,336 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:08:19,535 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:08:19,536 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 04:08:19,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:19 BoogieIcfgContainer [2023-11-19 04:08:19,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:08:19,541 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:08:19,542 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:08:19,584 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:08:19,584 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:08:19" (1/1) ... [2023-11-19 04:08:19,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:08:19,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2023-11-19 04:08:19,689 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2023-11-19 04:08:19,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:08:19,694 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:19,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:20,363 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 04:08:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:20,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 32 transitions. [2023-11-19 04:08:20,578 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2023-11-19 04:08:20,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:08:20,580 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:20,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:28,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 32 states and 51 transitions. [2023-11-19 04:08:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 51 transitions. [2023-11-19 04:08:28,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:08:28,260 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:28,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:31,939 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:08:34,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:34,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 32 states and 51 transitions. [2023-11-19 04:08:34,511 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 51 transitions. [2023-11-19 04:08:34,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:08:34,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:34,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:37,645 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:39,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 32 states and 51 transitions. [2023-11-19 04:08:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 51 transitions. [2023-11-19 04:08:39,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:08:39,170 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:39,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:08:41,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:41,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 32 states and 51 transitions. [2023-11-19 04:08:41,824 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 51 transitions. [2023-11-19 04:08:41,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:08:41,827 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:41,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:44,796 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:08:46,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:46,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 34 states and 59 transitions. [2023-11-19 04:08:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 59 transitions. [2023-11-19 04:08:46,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:08:46,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:46,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:49,047 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:49,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:49,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 34 states and 59 transitions. [2023-11-19 04:08:49,461 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 59 transitions. [2023-11-19 04:08:49,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:08:49,463 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:49,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:51,641 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:08:51,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:08:51,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 34 states and 59 transitions. [2023-11-19 04:08:51,799 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 59 transitions. [2023-11-19 04:08:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 04:08:51,801 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:08:51,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:08:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:08:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.