./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/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_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/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-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:45:45,530 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:45:45,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-11-19 02:45:45,602 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:45:45,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:45:45,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:45:45,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:45:45,630 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:45:45,631 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:45:45,632 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:45:45,633 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:45:45,633 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:45:45,634 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:45:45,635 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:45:45,635 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:45:45,636 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 02:45:45,637 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 02:45:45,637 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:45:45,638 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:45:45,639 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:45:45,639 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:45:45,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:45:45,641 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:45:45,642 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:45:45,642 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:45:45,643 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:45:45,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:45:45,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:45:45,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:45:45,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:45:45,646 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:45:45,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:45:45,647 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_143591c4-c377-4219-999c-1c4cdf7c4cbf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b [2023-11-19 02:45:45,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:45:45,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:45:45,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:45:45,925 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:45:45,926 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:45:45,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2023-11-19 02:45:49,051 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:45:49,427 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:45:49,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2023-11-19 02:45:49,449 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/data/c6ef0a272/448937060a8d4b2cbde4ba085ed9430a/FLAGcd56bec74 [2023-11-19 02:45:49,465 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/data/c6ef0a272/448937060a8d4b2cbde4ba085ed9430a [2023-11-19 02:45:49,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:45:49,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:45:49,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:45:49,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:45:49,476 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:45:49,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:45:49" (1/1) ... [2023-11-19 02:45:49,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbbabab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:49, skipping insertion in model container [2023-11-19 02:45:49,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:45:49" (1/1) ... [2023-11-19 02:45:49,564 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:45:50,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:45:50,222 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:45:50,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:45:50,528 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:45:50,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50 WrapperNode [2023-11-19 02:45:50,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:45:50,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:45:50,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:45:50,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:45:50,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,712 INFO L138 Inliner]: procedures = 177, calls = 449, calls flagged for inlining = 20, calls inlined = 29, statements flattened = 1895 [2023-11-19 02:45:50,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:45:50,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:45:50,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:45:50,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:45:50,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:45:50,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:45:50,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:45:50,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:45:50,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:50" (1/1) ... [2023-11-19 02:45:50,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:45:50,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:45:50,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:45:50,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_143591c4-c377-4219-999c-1c4cdf7c4cbf/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:45:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:45:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 02:45:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 02:45:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:45:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:45:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 02:45:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 02:45:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:45:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:45:50,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:45:50,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:45:51,228 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:45:51,230 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:45:53,449 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:45:55,353 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:45:55,354 INFO L302 CfgBuilder]: Removed 77 assume(true) statements. [2023-11-19 02:45:55,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:55 BoogieIcfgContainer [2023-11-19 02:45:55,372 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:45:55,373 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:45:55,373 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:45:55,383 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:45:55,384 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:55" (1/1) ... [2023-11-19 02:45:55,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:45:55,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:55,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 200 states and 328 transitions. [2023-11-19 02:45:55,519 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 328 transitions. [2023-11-19 02:45:55,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 02:45:55,522 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:55,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:55,715 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 02:45:55,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:55,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 201 states and 330 transitions. [2023-11-19 02:45:55,760 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 330 transitions. [2023-11-19 02:45:55,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 02:45:55,762 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:55,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:55,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:45:55,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:55,890 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 02:45:55,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 201 states and 326 transitions. [2023-11-19 02:45:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 326 transitions. [2023-11-19 02:45:55,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 02:45:55,910 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:55,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:56,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:45:56,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:56,049 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 02:45:56,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:56,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 201 states and 318 transitions. [2023-11-19 02:45:56,069 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 318 transitions. [2023-11-19 02:45:56,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 02:45:56,078 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:56,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:56,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:45:56,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:56,238 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 02:45:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:56,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 201 states and 306 transitions. [2023-11-19 02:45:56,247 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 306 transitions. [2023-11-19 02:45:56,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-19 02:45:56,248 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:56,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:56,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:45:56,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:45:56,496 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 02:45:58,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:46:00,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:46:00,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:00,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 201 states and 292 transitions. [2023-11-19 02:46:00,472 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 292 transitions. [2023-11-19 02:46:00,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 02:46:00,473 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:00,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:00,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 02:46:00,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:46:01,087 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 02:46:03,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:03,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 253 states and 354 transitions. [2023-11-19 02:46:03,075 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 354 transitions. [2023-11-19 02:46:03,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 02:46:03,076 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:03,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:03,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:46:03,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:46:03,439 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 02:46:03,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:03,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 253 states and 352 transitions. [2023-11-19 02:46:03,453 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 352 transitions. [2023-11-19 02:46:03,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 02:46:03,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:03,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:03,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:46:03,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:46:03,866 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 02:46:03,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 253 states and 350 transitions. [2023-11-19 02:46:03,892 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 350 transitions. [2023-11-19 02:46:03,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 02:46:03,893 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:03,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:04,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:46:04,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:46:04,259 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 02:46:04,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:04,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 253 states and 348 transitions. [2023-11-19 02:46:04,273 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 348 transitions. [2023-11-19 02:46:04,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 02:46:04,274 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:04,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:04,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:46:04,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:46:04,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:46:14,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:46:14,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:14,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 253 states and 346 transitions. [2023-11-19 02:46:14,755 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 346 transitions. [2023-11-19 02:46:14,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 02:46:14,756 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:14,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:15,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:46:15,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:46:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:46:25,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:46:25,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:25,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 253 states and 344 transitions. [2023-11-19 02:46:25,242 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 344 transitions. [2023-11-19 02:46:25,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 02:46:25,243 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:25,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:25,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 02:46:25,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:46:25,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 02:46:35,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:46:45,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:46:52,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 02:46:52,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:52,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 254 states and 343 transitions. [2023-11-19 02:46:52,649 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 343 transitions. [2023-11-19 02:46:52,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 02:46:52,650 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:52,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms