./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc 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_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/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_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/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-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ddeff00ba0e288e2e7b04a6005a0db991f8cee358fe3ef021af7107ab321b8e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:08:11,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:08:11,588 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-11-24 23:08:11,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:08:11,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:08:11,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:08:11,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:08:11,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:08:11,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:08:11,649 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:08:11,650 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:08:11,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:08:11,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:08:11,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:08:11,653 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:08:11,654 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:08:11,654 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:08:11,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:08:11,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:08:11,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:08:11,656 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:08:11,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:08:11,657 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:08:11,658 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:08:11,659 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:08:11,659 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:08:11,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:08:11,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:11,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:08:11,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:08:11,661 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:08:11,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:08:11,662 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_c6a39da0-6934-4172-9ba3-d47b4e10a108/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ddeff00ba0e288e2e7b04a6005a0db991f8cee358fe3ef021af7107ab321b8e [2023-11-24 23:08:11,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:08:12,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:08:12,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:08:12,015 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:08:12,015 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:08:12,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i [2023-11-24 23:08:15,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:08:15,509 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:08:15,510 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i [2023-11-24 23:08:15,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/data/4c23c96f9/050601e169b3448c84f28cb1bbc2850c/FLAG0dd728740 [2023-11-24 23:08:15,561 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/data/4c23c96f9/050601e169b3448c84f28cb1bbc2850c [2023-11-24 23:08:15,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:08:15,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:08:15,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:15,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:08:15,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:08:15,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:15" (1/1) ... [2023-11-24 23:08:15,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2238f2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:15, skipping insertion in model container [2023-11-24 23:08:15,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:15" (1/1) ... [2023-11-24 23:08:15,666 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:08:16,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:16,245 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:08:16,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:16,506 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:08:16,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16 WrapperNode [2023-11-24 23:08:16,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:16,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:16,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:08:16,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:08:16,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,714 INFO L138 Inliner]: procedures = 177, calls = 350, calls flagged for inlining = 20, calls inlined = 29, statements flattened = 1582 [2023-11-24 23:08:16,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:16,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:08:16,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:08:16,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:08:16,727 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,896 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:08:16,922 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:08:16,922 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:08:16,922 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:08:16,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:16" (1/1) ... [2023-11-24 23:08:16,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:16,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:08:16,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:08:16,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6a39da0-6934-4172-9ba3-d47b4e10a108/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:08:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:08:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:08:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:08:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:08:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:08:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:08:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:08:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:08:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:08:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:08:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:08:17,227 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:08:17,230 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:08:19,156 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:08:20,986 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:08:20,986 INFO L309 CfgBuilder]: Removed 60 assume(true) statements. [2023-11-24 23:08:20,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:20 BoogieIcfgContainer [2023-11-24 23:08:20,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:08:20,989 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:08:20,990 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:08:21,000 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:08:21,000 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:20" (1/1) ... [2023-11-24 23:08:21,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:08:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:21,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 172 states and 279 transitions. [2023-11-24 23:08:21,093 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 279 transitions. [2023-11-24 23:08:21,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:08:21,095 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:21,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:21,328 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 23:08:21,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:21,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 173 states and 281 transitions. [2023-11-24 23:08:21,379 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 281 transitions. [2023-11-24 23:08:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:08:21,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:21,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:21,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:08:21,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:21,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:21,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 173 states and 277 transitions. [2023-11-24 23:08:21,513 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 277 transitions. [2023-11-24 23:08:21,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 23:08:21,515 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:21,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:21,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:08:21,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:21,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:21,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 173 states and 269 transitions. [2023-11-24 23:08:21,624 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 269 transitions. [2023-11-24 23:08:21,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:08:21,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:21,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:21,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:08:21,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:21,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:21,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 173 states and 257 transitions. [2023-11-24 23:08:21,842 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 257 transitions. [2023-11-24 23:08:21,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-24 23:08:21,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:21,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:22,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:08:22,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:32,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:08:42,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:08:42,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:42,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 173 states and 243 transitions. [2023-11-24 23:08:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 243 transitions. [2023-11-24 23:08:42,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-24 23:08:42,483 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:42,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:43,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:08:43,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:43,191 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 23:08:53,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:09:03,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:09:13,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []