./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/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_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/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 64bit --witnessprinter.graph.data.programhash 670ba1f7b305b901cafb6eb07f9685f38a74d232de67a28beb70e276cc8ee0cd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:16:33,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:16:33,697 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-24 22:16:33,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:16:33,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:16:33,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:16:33,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:16:33,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:16:33,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:16:33,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:16:33,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:16:33,734 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:16:33,735 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:16:33,735 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:16:33,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:16:33,736 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:16:33,737 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:16:33,737 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:16:33,738 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:16:33,738 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:16:33,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:16:33,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:33,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:16:33,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:16:33,741 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:16:33,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:16:33,741 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_96b71e61-a028-4adf-8d0c-d81f698d76c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 670ba1f7b305b901cafb6eb07f9685f38a74d232de67a28beb70e276cc8ee0cd [2023-11-24 22:16:34,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:16:34,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:16:34,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:16:34,066 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:16:34,068 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:16:34,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2023-11-24 22:16:37,313 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:16:37,603 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:16:37,604 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2023-11-24 22:16:37,626 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/data/0600abe8c/bc9dfdd2892a4f90a5c116ad7459da87/FLAGf470ead78 [2023-11-24 22:16:37,907 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/data/0600abe8c/bc9dfdd2892a4f90a5c116ad7459da87 [2023-11-24 22:16:37,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:16:37,911 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:16:37,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:37,917 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:16:37,922 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:16:37,923 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:37" (1/1) ... [2023-11-24 22:16:37,924 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147b9868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:37, skipping insertion in model container [2023-11-24 22:16:37,924 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:37" (1/1) ... [2023-11-24 22:16:37,983 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:16:38,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:38,326 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:16:38,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:38,398 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:16:38,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38 WrapperNode [2023-11-24 22:16:38,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:38,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:38,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:16:38,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:16:38,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,450 INFO L138 Inliner]: procedures = 111, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-11-24 22:16:38,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:38,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:16:38,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:16:38,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:16:38,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:16:38,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:16:38,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:16:38,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:16:38,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:38,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:16:38,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:16:38,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96b71e61-a028-4adf-8d0c-d81f698d76c1/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:16:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:16:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:16:38,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:16:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:16:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2023-11-24 22:16:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2023-11-24 22:16:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:16:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:16:38,680 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:16:38,682 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:16:38,802 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:16:38,852 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:16:38,852 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:16:38,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:38 BoogieIcfgContainer [2023-11-24 22:16:38,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:16:38,859 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:16:38,860 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:16:38,869 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:16:38,869 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:38" (1/1) ... [2023-11-24 22:16:38,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:16:38,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:38,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2023-11-24 22:16:38,931 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2023-11-24 22:16:38,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 22:16:38,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:38,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:39,225 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 22:16:39,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:39,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2023-11-24 22:16:39,258 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-11-24 22:16:39,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 22:16:39,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:39,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:39,541 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 22:16:39,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:39,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2023-11-24 22:16:39,691 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-11-24 22:16:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:16:39,691 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:39,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:39,817 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 22:16:39,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:39,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 20 transitions. [2023-11-24 22:16:39,895 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-24 22:16:39,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:16:39,895 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:39,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:40,097 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 22:16:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:40,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 23 transitions. [2023-11-24 22:16:40,603 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-24 22:16:40,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:16:40,608 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:40,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:40,679 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 22:16:40,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:40,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 19 transitions. [2023-11-24 22:16:40,699 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-11-24 22:16:40,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:16:40,699 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:40,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:41,336 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 22:16:43,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:43,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 28 transitions. [2023-11-24 22:16:43,373 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-24 22:16:43,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:16:43,374 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:43,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:43,608 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 22:16:44,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:44,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 22 states and 27 transitions. [2023-11-24 22:16:44,481 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-11-24 22:16:44,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:16:44,482 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:44,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:45,890 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:50,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:50,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 30 states and 40 transitions. [2023-11-24 22:16:50,721 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2023-11-24 22:16:50,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 22:16:50,722 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:50,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:52,722 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:00,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 41 states and 58 transitions. [2023-11-24 22:17:00,732 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2023-11-24 22:17:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 22:17:00,734 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:00,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:03,623 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:08,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 45 states and 64 transitions. [2023-11-24 22:17:08,975 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2023-11-24 22:17:08,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 22:17:08,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:08,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:14,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:14,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 49 states and 70 transitions. [2023-11-24 22:17:14,743 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2023-11-24 22:17:14,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-24 22:17:14,745 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:14,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:17,106 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:21,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:21,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 53 states and 76 transitions. [2023-11-24 22:17:21,698 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2023-11-24 22:17:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 22:17:21,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:21,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:25,556 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.