./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i --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_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/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_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/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_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/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 60396cce4fa0936fb91e88a54a287214045469c9d9b3d447954681e0a5aabbc0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:12:41,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:12:41,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-24 22:12:41,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:12:41,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:12:41,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:12:41,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:12:41,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:12:41,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:12:41,382 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:12:41,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:12:41,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:12:41,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:12:41,386 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:12:41,386 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:12:41,387 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:12:41,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:12:41,388 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:12:41,388 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:12:41,389 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:12:41,389 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:12:41,390 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:12:41,391 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:12:41,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:12:41,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:12:41,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:12:41,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:12:41,394 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:12:41,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:12:41,395 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_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60396cce4fa0936fb91e88a54a287214045469c9d9b3d447954681e0a5aabbc0 [2023-11-24 22:12:41,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:12:41,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:12:41,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:12:41,738 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:12:41,738 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:12:41,740 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i [2023-11-24 22:12:44,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:12:45,146 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:12:45,147 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i [2023-11-24 22:12:45,166 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi/data/7e5eef077/529346bc4c844712b9ca2ca3435f11ea/FLAGcf744089b [2023-11-24 22:12:45,181 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi/data/7e5eef077/529346bc4c844712b9ca2ca3435f11ea [2023-11-24 22:12:45,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:12:45,186 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:12:45,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:12:45,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:12:45,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:12:45,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@223931e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45, skipping insertion in model container [2023-11-24 22:12:45,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,263 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:12:45,691 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:12:45,706 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:12:45,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:12:45,803 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:12:45,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45 WrapperNode [2023-11-24 22:12:45,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:12:45,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:12:45,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:12:45,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:12:45,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,861 INFO L138 Inliner]: procedures = 117, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-24 22:12:45,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:12:45,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:12:45,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:12:45,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:12:45,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:12:45,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:12:45,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:12:45,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:12:45,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:12:45" (1/1) ... [2023-11-24 22:12:45,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:12:45,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:12:45,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:12:45,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f22e58fb-f05c-4cc6-9dc4-9351efefe06c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:12:46,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:12:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:12:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:12:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:12:46,006 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2023-11-24 22:12:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2023-11-24 22:12:46,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:12:46,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:12:46,140 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:12:46,142 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:12:46,279 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:12:46,322 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:12:46,322 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:12:46,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:12:46 BoogieIcfgContainer [2023-11-24 22:12:46,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:12:46,325 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:12:46,325 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:12:46,335 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:12:46,335 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:12:46" (1/1) ... [2023-11-24 22:12:46,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:12:46,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2023-11-24 22:12:46,401 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-24 22:12:46,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:12:46,403 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:46,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:46,735 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 22:12:46,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:46,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2023-11-24 22:12:46,816 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-11-24 22:12:46,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:12:46,816 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:46,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:47,212 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 22:12:47,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:47,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-11-24 22:12:47,575 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-24 22:12:47,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:12:47,576 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:47,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:47,875 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 22:12:48,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:48,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 32 transitions. [2023-11-24 22:12:48,335 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 32 transitions. [2023-11-24 22:12:48,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:12:48,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:48,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:48,587 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 22:12:49,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:49,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2023-11-24 22:12:49,276 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2023-11-24 22:12:49,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:12:49,279 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:49,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:49,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:12:50,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:50,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2023-11-24 22:12:50,585 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-24 22:12:50,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:12:50,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:50,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:12:52,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:52,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2023-11-24 22:12:52,512 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-11-24 22:12:52,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:12:52,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:52,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:53,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:12:53,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:53,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-24 22:12:53,949 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-24 22:12:53,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:12:53,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:53,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:54,131 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 22:12:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:54,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 25 transitions. [2023-11-24 22:12:54,314 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-24 22:12:54,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:12:54,314 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:54,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:54,923 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 22:12:56,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:56,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 30 transitions. [2023-11-24 22:12:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-11-24 22:12:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:12:56,755 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:56,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:57,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:12:59,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:59,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 24 states and 28 transitions. [2023-11-24 22:12:59,513 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-24 22:12:59,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:12:59,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:59,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:00,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:13:02,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:02,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 35 transitions. [2023-11-24 22:13:02,854 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2023-11-24 22:13:02,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:13:02,855 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:02,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:03,761 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 22:13:06,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 44 transitions. [2023-11-24 22:13:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-11-24 22:13:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:13:06,686 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:06,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:13:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:07,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 43 transitions. [2023-11-24 22:13:07,652 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2023-11-24 22:13:07,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:13:07,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:07,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:08,050 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 22:13:10,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:10,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 35 states and 48 transitions. [2023-11-24 22:13:10,504 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2023-11-24 22:13:10,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:13:10,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:10,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:13:13,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:13,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 42 transitions. [2023-11-24 22:13:13,548 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2023-11-24 22:13:13,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 22:13:13,549 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:13,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:15,863 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:13:26,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:26,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 42 states and 61 transitions. [2023-11-24 22:13:26,659 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2023-11-24 22:13:26,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:13:26,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:26,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:28,857 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:13:35,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:13:35,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 46 states and 70 transitions. [2023-11-24 22:13:35,458 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 70 transitions. [2023-11-24 22:13:35,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:13:35,460 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:13:35,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:13:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:13:39,776 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.