./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:15:47,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:15:47,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-24 22:15:47,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:15:47,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:15:47,705 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:15:47,706 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:15:47,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:15:47,707 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:15:47,708 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:15:47,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:15:47,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:15:47,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:15:47,710 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:15:47,711 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:15:47,711 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:15:47,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:15:47,712 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:15:47,712 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:15:47,713 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:15:47,713 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:15:47,720 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:15:47,720 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:15:47,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:15:47,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:15:47,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:15:47,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:15:47,722 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:15:47,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:15:47,723 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_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a [2023-11-24 22:15:47,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:15:47,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:15:48,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:15:48,001 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:15:48,002 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:15:48,004 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/verifythis/elimination_max_rec.c [2023-11-24 22:15:51,157 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:15:51,403 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:15:51,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/sv-benchmarks/c/verifythis/elimination_max_rec.c [2023-11-24 22:15:51,411 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/data/77bea2d1a/91d37fa2a1db4a5cb1418de312b7c90f/FLAG76c5ad9a8 [2023-11-24 22:15:51,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/data/77bea2d1a/91d37fa2a1db4a5cb1418de312b7c90f [2023-11-24 22:15:51,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:15:51,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:15:51,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:15:51,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:15:51,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:15:51,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb6edab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51, skipping insertion in model container [2023-11-24 22:15:51,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,467 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:15:51,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:15:51,727 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:15:51,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:15:51,779 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:15:51,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51 WrapperNode [2023-11-24 22:15:51,780 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:15:51,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:15:51,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:15:51,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:15:51,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,845 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 85 [2023-11-24 22:15:51,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:15:51,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:15:51,846 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:15:51,847 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:15:51,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:15:51,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:15:51,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:15:51,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:15:51,896 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:51" (1/1) ... [2023-11-24 22:15:51,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:15:51,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:15:51,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:15:51,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2beeb693-1b1b-4074-be61-515aceb5c552/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:15:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:15:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:15:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-11-24 22:15:51,982 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-11-24 22:15:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:15:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:15:51,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:15:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:15:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:15:52,069 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:15:52,072 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:15:52,333 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:15:52,405 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:15:52,405 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:15:52,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:52 BoogieIcfgContainer [2023-11-24 22:15:52,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:15:52,408 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:15:52,409 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:15:52,420 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:15:52,420 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:52" (1/1) ... [2023-11-24 22:15:52,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:15:52,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 38 states and 41 transitions. [2023-11-24 22:15:52,490 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2023-11-24 22:15:52,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:15:52,494 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:52,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:52,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:53,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 41 states and 45 transitions. [2023-11-24 22:15:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2023-11-24 22:15:53,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:15:53,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:53,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:53,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:53,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:53,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 46 states and 53 transitions. [2023-11-24 22:15:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2023-11-24 22:15:53,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:15:53,678 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:53,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:55,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:55,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 51 states and 61 transitions. [2023-11-24 22:15:55,495 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2023-11-24 22:15:55,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:15:55,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:55,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:55,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:55,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 60 transitions. [2023-11-24 22:15:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2023-11-24 22:15:55,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:15:55,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:55,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:55,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:55,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:55,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 59 transitions. [2023-11-24 22:15:55,733 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2023-11-24 22:15:55,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:15:55,733 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:55,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:57,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:57,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 53 states and 64 transitions. [2023-11-24 22:15:57,582 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2023-11-24 22:15:57,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:15:57,583 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:57,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:58,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 52 states and 63 transitions. [2023-11-24 22:15:58,298 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2023-11-24 22:15:58,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:15:58,299 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:58,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:58,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:58,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 51 states and 62 transitions. [2023-11-24 22:15:58,800 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2023-11-24 22:15:58,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:15:58,801 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:58,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:00,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:00,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 50 states and 61 transitions. [2023-11-24 22:16:00,285 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2023-11-24 22:16:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:16:00,286 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:00,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:01,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:04,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:04,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 59 states and 76 transitions. [2023-11-24 22:16:04,538 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2023-11-24 22:16:04,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 22:16:04,539 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:04,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:04,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:05,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:05,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 59 states and 75 transitions. [2023-11-24 22:16:05,260 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2023-11-24 22:16:05,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-24 22:16:05,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:05,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:08,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:08,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 65 states and 86 transitions. [2023-11-24 22:16:08,927 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions. [2023-11-24 22:16:08,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:16:08,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:08,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:16:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 67 states and 89 transitions. [2023-11-24 22:16:08,986 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 89 transitions. [2023-11-24 22:16:08,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:16:08,987 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:08,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:12,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:12,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 70 states and 98 transitions. [2023-11-24 22:16:12,817 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2023-11-24 22:16:12,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:16:12,818 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:12,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:13,484 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:14,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 73 states and 101 transitions. [2023-11-24 22:16:14,830 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2023-11-24 22:16:14,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:16:14,830 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:14,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:14,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:16:14,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:14,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 72 states and 100 transitions. [2023-11-24 22:16:14,890 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2023-11-24 22:16:14,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:16:14,897 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:16,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:20,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 78 states and 130 transitions. [2023-11-24 22:16:20,163 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 130 transitions. [2023-11-24 22:16:20,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:16:20,164 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:20,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:27,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 88 states and 153 transitions. [2023-11-24 22:16:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 153 transitions. [2023-11-24 22:16:27,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:16:27,901 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:27,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:29,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:35,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 94 states and 168 transitions. [2023-11-24 22:16:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 168 transitions. [2023-11-24 22:16:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:16:35,390 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:35,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:36,715 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:41,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 97 states and 185 transitions. [2023-11-24 22:16:41,095 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 185 transitions. [2023-11-24 22:16:41,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:16:41,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:41,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.