./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-15/cstrspn_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/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_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-15/cstrspn_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5874eb83dea617c97f28746e1359ec67eb979d702b31dfbd0eb177fa26bd5d73 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:53:59,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:53:59,377 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-19 02:53:59,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:53:59,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:53:59,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:53:59,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:53:59,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:53:59,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:53:59,436 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:53:59,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:53:59,437 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 02:53:59,437 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 02:53:59,439 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 02:53:59,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:53:59,440 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:53:59,440 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:53:59,441 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:53:59,441 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:53:59,442 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:53:59,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:53:59,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:53:59,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:53:59,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:53:59,445 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:53:59,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:53:59,446 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_10f03220-cd90-4e2e-b22a-bdde7621f3f8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5874eb83dea617c97f28746e1359ec67eb979d702b31dfbd0eb177fa26bd5d73 [2023-11-19 02:53:59,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:53:59,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:53:59,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:53:59,825 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:53:59,826 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:53:59,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-15/cstrspn_reverse_alloca.i [2023-11-19 02:54:02,771 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:54:03,080 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:54:03,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/sv-benchmarks/c/termination-15/cstrspn_reverse_alloca.i [2023-11-19 02:54:03,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/data/dcd60737f/81bb5599cd044b3a856e638413788aff/FLAG0f054afbe [2023-11-19 02:54:03,111 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/data/dcd60737f/81bb5599cd044b3a856e638413788aff [2023-11-19 02:54:03,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:54:03,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:54:03,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:54:03,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:54:03,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:54:03,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ff4919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03, skipping insertion in model container [2023-11-19 02:54:03,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,174 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:54:03,533 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:54:03,549 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:54:03,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:54:03,674 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:54:03,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03 WrapperNode [2023-11-19 02:54:03,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:54:03,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:54:03,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:54:03,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:54:03,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,727 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2023-11-19 02:54:03,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:54:03,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:54:03,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:54:03,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:54:03,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:54:03,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:54:03,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:54:03,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:54:03,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:03" (1/1) ... [2023-11-19 02:54:03,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:54:03,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:54:03,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:54:03,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f03220-cd90-4e2e-b22a-bdde7621f3f8/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:54:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:54:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:54:03,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:54:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:54:03,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:54:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:54:03,991 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:54:03,994 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:54:04,301 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:54:04,403 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:54:04,403 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 02:54:04,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:04 BoogieIcfgContainer [2023-11-19 02:54:04,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:54:04,410 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:54:04,411 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:54:04,421 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:54:04,422 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:04" (1/1) ... [2023-11-19 02:54:04,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:54:04,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:04,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2023-11-19 02:54:04,477 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-11-19 02:54:04,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 02:54:04,479 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:04,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:04,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:04,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:04,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 35 transitions. [2023-11-19 02:54:04,971 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-11-19 02:54:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 02:54:04,971 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:04,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:05,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2023-11-19 02:54:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-19 02:54:05,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 02:54:05,346 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:05,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:05,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:05,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:05,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-19 02:54:05,671 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-19 02:54:05,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 02:54:05,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:05,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:06,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:06,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2023-11-19 02:54:06,106 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-19 02:54:06,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:54:06,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:06,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:06,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:06,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-19 02:54:06,393 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-19 02:54:06,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:54:06,393 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:06,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:06,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:07,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:07,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2023-11-19 02:54:07,721 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-19 02:54:07,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:54:07,722 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:07,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:07,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:07,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2023-11-19 02:54:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-19 02:54:07,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 02:54:07,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:07,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:07,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:07,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:07,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2023-11-19 02:54:07,804 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-19 02:54:07,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:54:07,805 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:07,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:08,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:08,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2023-11-19 02:54:08,448 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-19 02:54:08,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:54:08,449 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:08,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:08,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:10,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:10,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 35 states and 44 transitions. [2023-11-19 02:54:10,929 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2023-11-19 02:54:10,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:54:10,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:10,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:11,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:12,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2023-11-19 02:54:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-19 02:54:12,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:54:12,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:12,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:13,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2023-11-19 02:54:13,009 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2023-11-19 02:54:13,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:54:13,010 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:13,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:13,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:13,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2023-11-19 02:54:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2023-11-19 02:54:13,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:54:13,079 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:13,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:13,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:13,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2023-11-19 02:54:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2023-11-19 02:54:13,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:54:13,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:13,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:13,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:13,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 49 transitions. [2023-11-19 02:54:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2023-11-19 02:54:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:54:13,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:13,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:13,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2023-11-19 02:54:13,679 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2023-11-19 02:54:13,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 02:54:13,679 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:13,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:14,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:17,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:17,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 44 states and 62 transitions. [2023-11-19 02:54:17,511 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2023-11-19 02:54:17,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:54:17,511 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:17,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:18,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:21,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 50 states and 73 transitions. [2023-11-19 02:54:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions. [2023-11-19 02:54:21,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:54:21,841 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:21,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:22,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:31,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 59 states and 98 transitions. [2023-11-19 02:54:31,791 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 98 transitions. [2023-11-19 02:54:31,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:54:31,792 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:31,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:31,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:35,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 65 states and 110 transitions. [2023-11-19 02:54:35,950 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 110 transitions. [2023-11-19 02:54:35,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:54:35,951 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:35,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 71 states and 124 transitions. [2023-11-19 02:54:40,630 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 124 transitions. [2023-11-19 02:54:40,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 02:54:40,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:40,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:40,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:41,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 72 states and 126 transitions. [2023-11-19 02:54:41,514 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 126 transitions. [2023-11-19 02:54:41,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:54:41,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:41,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:48,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:48,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 77 states and 142 transitions. [2023-11-19 02:54:48,859 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 142 transitions. [2023-11-19 02:54:48,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 02:54:48,860 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:48,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:54:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:55,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 83 states and 156 transitions. [2023-11-19 02:54:55,479 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 156 transitions. [2023-11-19 02:54:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 02:54:55,481 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:55,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:55,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.