./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/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_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7528f200456114b53348dcc6f65daa446d01523914ddd1f3b2ed0ccb2daf1cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:22:50,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:22:50,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 03:22:50,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:22:50,439 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:22:50,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:22:50,476 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:22:50,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:22:50,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:22:50,483 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:22:50,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:22:50,484 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:22:50,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:22:50,487 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:22:50,487 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:22:50,488 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:22:50,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:22:50,489 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:22:50,489 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:22:50,490 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:22:50,490 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:22:50,491 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:22:50,492 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:22:50,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:22:50,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:22:50,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:22:50,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:22:50,495 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:22:50,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:22:50,496 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_65e54748-a463-495e-b3c7-4afbb698fcb6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7528f200456114b53348dcc6f65daa446d01523914ddd1f3b2ed0ccb2daf1cf [2023-11-19 03:22:50,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:22:50,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:22:50,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:22:50,850 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:22:50,851 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:22:50,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2023-11-19 03:22:53,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:22:54,272 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:22:54,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2023-11-19 03:22:54,292 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/data/086a42b88/6b0178cfc79947e1a6efe85e80c1565d/FLAG1dd5ec1e3 [2023-11-19 03:22:54,310 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/data/086a42b88/6b0178cfc79947e1a6efe85e80c1565d [2023-11-19 03:22:54,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:22:54,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:22:54,317 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:22:54,317 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:22:54,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:22:54,323 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,324 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446e1823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54, skipping insertion in model container [2023-11-19 03:22:54,325 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,367 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:22:54,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:22:54,665 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:22:54,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:22:54,764 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:22:54,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54 WrapperNode [2023-11-19 03:22:54,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:22:54,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:22:54,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:22:54,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:22:54,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,801 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,833 INFO L138 Inliner]: procedures = 117, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-11-19 03:22:54,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:22:54,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:22:54,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:22:54,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:22:54,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:22:54,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:22:54,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:22:54,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:22:54,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:22:54" (1/1) ... [2023-11-19 03:22:54,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:22:54,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:22:54,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:22:54,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:22:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:22:54,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:22:54,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:22:54,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:22:54,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:22:55,092 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:22:55,093 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:22:55,281 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:22:55,333 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:22:55,333 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:22:55,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:22:55 BoogieIcfgContainer [2023-11-19 03:22:55,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:22:55,339 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:22:55,339 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:22:55,349 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:22:55,349 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:22:55" (1/1) ... [2023-11-19 03:22:55,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:22:55,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:55,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2023-11-19 03:22:55,401 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-19 03:22:55,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:22:55,404 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:55,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:22:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:55,621 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 03:22:55,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:55,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2023-11-19 03:22:55,670 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-19 03:22:55,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:22:55,674 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:55,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:22:55,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:55,747 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 03:22:55,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:55,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2023-11-19 03:22:55,771 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-11-19 03:22:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:22:55,772 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:55,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:22:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:56,017 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 03:22:56,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:56,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2023-11-19 03:22:56,086 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-19 03:22:56,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:22:56,087 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:56,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:22:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:56,431 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 03:22:56,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:56,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2023-11-19 03:22:56,703 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2023-11-19 03:22:56,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:22:56,704 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:56,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:22:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:56,868 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 03:22:57,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:57,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 28 states and 37 transitions. [2023-11-19 03:22:57,134 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2023-11-19 03:22:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:22:57,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:57,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:22:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:22:58,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:58,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2023-11-19 03:22:58,158 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2023-11-19 03:22:58,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:22:58,159 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:58,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:22:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:58,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:22:58,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2023-11-19 03:22:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2023-11-19 03:22:58,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:22:58,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:58,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:22:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:58,948 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 03:22:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 34 states and 53 transitions. [2023-11-19 03:22:59,175 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2023-11-19 03:22:59,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:22:59,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:59,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:22:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:22:59,291 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 03:22:59,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:22:59,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 38 states and 63 transitions. [2023-11-19 03:22:59,993 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 63 transitions. [2023-11-19 03:22:59,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:22:59,994 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:22:59,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:00,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:23:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:01,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 44 states and 79 transitions. [2023-11-19 03:23:01,259 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 79 transitions. [2023-11-19 03:23:01,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:23:01,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:01,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:23:02,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:02,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 45 states and 80 transitions. [2023-11-19 03:23:02,229 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 80 transitions. [2023-11-19 03:23:02,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:23:02,231 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:02,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:23:02,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 46 states and 86 transitions. [2023-11-19 03:23:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 86 transitions. [2023-11-19 03:23:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:23:02,676 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:02,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:02,697 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 03:23:03,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 50 states and 98 transitions. [2023-11-19 03:23:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 98 transitions. [2023-11-19 03:23:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:23:03,713 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:03,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:23:05,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:05,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 57 states and 118 transitions. [2023-11-19 03:23:05,647 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 118 transitions. [2023-11-19 03:23:05,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:23:05,648 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:05,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:23:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 58 states and 119 transitions. [2023-11-19 03:23:05,952 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 119 transitions. [2023-11-19 03:23:05,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:23:05,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:05,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:06,077 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 03:23:06,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:06,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 59 states and 124 transitions. [2023-11-19 03:23:06,861 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 124 transitions. [2023-11-19 03:23:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:23:06,862 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:06,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:06,900 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:23:07,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:07,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 61 states and 130 transitions. [2023-11-19 03:23:07,502 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 130 transitions. [2023-11-19 03:23:07,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:23:07,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:07,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:07,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:23:08,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:08,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 61 states and 129 transitions. [2023-11-19 03:23:08,271 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 129 transitions. [2023-11-19 03:23:08,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:23:08,273 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:08,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:23:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:09,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 62 states and 131 transitions. [2023-11-19 03:23:09,761 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 131 transitions. [2023-11-19 03:23:09,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:23:09,761 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:09,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:23:10,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 63 states and 140 transitions. [2023-11-19 03:23:10,294 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 140 transitions. [2023-11-19 03:23:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:23:10,298 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:10,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:10,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:23:11,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:11,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 66 states and 142 transitions. [2023-11-19 03:23:11,108 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 142 transitions. [2023-11-19 03:23:11,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:23:11,109 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:11,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:23:11,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:11,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 66 states and 141 transitions. [2023-11-19 03:23:11,479 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 141 transitions. [2023-11-19 03:23:11,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:23:11,480 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:11,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:23:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:12,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 68 states and 146 transitions. [2023-11-19 03:23:12,275 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 146 transitions. [2023-11-19 03:23:12,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:23:12,276 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:12,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:23:12,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:12,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 69 states and 147 transitions. [2023-11-19 03:23:12,647 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 147 transitions. [2023-11-19 03:23:12,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:23:12,647 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:12,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:23:13,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:13,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 72 states and 149 transitions. [2023-11-19 03:23:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 149 transitions. [2023-11-19 03:23:13,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:23:13,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:13,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:23:13,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:13,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 72 states and 148 transitions. [2023-11-19 03:23:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 148 transitions. [2023-11-19 03:23:13,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:23:13,880 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:13,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 03:23:14,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 72 states and 147 transitions. [2023-11-19 03:23:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2023-11-19 03:23:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:23:14,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:14,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:14,708 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 03:23:15,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:15,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 74 states and 151 transitions. [2023-11-19 03:23:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 151 transitions. [2023-11-19 03:23:15,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:23:15,458 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:15,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:16,176 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:23:17,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:17,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 75 states and 153 transitions. [2023-11-19 03:23:17,127 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 153 transitions. [2023-11-19 03:23:17,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:23:17,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:17,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:23:17,591 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:23:17,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:23:17,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 76 states and 162 transitions. [2023-11-19 03:23:17,997 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 162 transitions. [2023-11-19 03:23:17,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 03:23:17,998 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:23:17,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:23:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:23:18,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:23:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:23:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:23:18,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:23:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:23:18,172 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 31 iterations. [2023-11-19 03:23:18,224 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,225 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,226 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,226 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,226 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,227 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,227 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,228 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:23:18 ImpRootNode [2023-11-19 03:23:18,233 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:23:18,233 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:23:18,233 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:23:18,233 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:23:18,234 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:22:55" (3/4) ... [2023-11-19 03:23:18,235 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:23:18,242 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,243 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,243 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,244 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,244 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,245 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,245 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,245 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 [2023-11-19 03:23:18,286 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:23:18,286 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:23:18,287 INFO L158 Benchmark]: Toolchain (without parser) took 23972.12ms. Allocated memory was 138.4MB in the beginning and 268.4MB in the end (delta: 130.0MB). Free memory was 104.2MB in the beginning and 87.9MB in the end (delta: 16.3MB). Peak memory consumption was 148.4MB. Max. memory is 16.1GB. [2023-11-19 03:23:18,288 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory was 87.2MB in the beginning and 87.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:23:18,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.04ms. Allocated memory is still 138.4MB. Free memory was 103.9MB in the beginning and 87.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:23:18,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.89ms. Allocated memory is still 138.4MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:23:18,289 INFO L158 Benchmark]: Boogie Preprocessor took 64.02ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 84.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:23:18,290 INFO L158 Benchmark]: RCFGBuilder took 439.12ms. Allocated memory is still 138.4MB. Free memory was 84.2MB in the beginning and 68.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:23:18,290 INFO L158 Benchmark]: CodeCheck took 22894.19ms. Allocated memory was 138.4MB in the beginning and 268.4MB in the end (delta: 130.0MB). Free memory was 68.6MB in the beginning and 91.0MB in the end (delta: -22.5MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. [2023-11-19 03:23:18,291 INFO L158 Benchmark]: Witness Printer took 53.42ms. Allocated memory is still 268.4MB. Free memory was 91.0MB in the beginning and 87.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:23:18,294 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 24 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 22.8s, OverallIterations: 31, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2440 SdHoareTripleChecker+Valid, 17.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1987 mSDsluCounter, 341 SdHoareTripleChecker+Invalid, 14.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 162 mSDsCounter, 1924 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9411 IncrementalHoareTripleChecker+Invalid, 11335 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1924 mSolverCounterUnsat, 179 mSDtfsCounter, 9411 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3198 GetRequests, 2898 SyntacticMatches, 32 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31790 ImplicationChecksByTransitivity, 17.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 953 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 22 PerfectInterpolantSequences, 59/139 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 538]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; [L528] num = __VERIFIER_nondet_int() [L529] COND FALSE !(!(num > 0 && num < 100)) [L532] int *a = (int *)malloc(sizeof(int)); [L533] COND FALSE !(a == ((void *)0)) [L536] newsize = 0 [L537] CALL expandArray(a) [L515] int *a = (int *)arg; [L516] int *b = ((void *)0); VAL [a={-1:0}, arg={-1:0}, arg={-1:0}, b={0:0}, i=1, ind=0, newsize=0, num=1] [L517] COND TRUE newsize < num [L518] newsize = newsize + 1 [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i [L521] a = b VAL [a={-1:0}, arg={-1:0}, arg={-1:0}, b={-1:0}, i=1, ind=0, newsize=1, num=1] [L517] COND FALSE !(newsize < num) VAL [a={-1:0}, arg={-1:0}, arg={-1:0}, b={-1:0}, i=1, ind=0, newsize=1, num=1] [L523] COND TRUE b != ((void *)0) VAL [a={-1:0}, arg={-1:0}, arg={-1:0}, b={-1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [a={-1:0}, arg={-1:0}, arg={-1:0}, b={-1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [a={-1:0}, arg={-1:0}, arg={-1:0}, b={-1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) [L525] return 0; [L537] RET expandArray(a) [L538] free(a) VAL [\old(argc)=3, a={-1:0}, argc=3, argv={6:5}, argv={6:5}, i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=3, a={-1:0}, argc=3, argv={6:5}, argv={6:5}, i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=3, a={-1:0}, argc=3, argv={6:5}, argv={6:5}, i=1, ind=0, newsize=1, num=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory was 87.2MB in the beginning and 87.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.04ms. Allocated memory is still 138.4MB. Free memory was 103.9MB in the beginning and 87.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.89ms. Allocated memory is still 138.4MB. Free memory was 87.7MB in the beginning and 85.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.02ms. Allocated memory is still 138.4MB. Free memory was 85.6MB in the beginning and 84.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.12ms. Allocated memory is still 138.4MB. Free memory was 84.2MB in the beginning and 68.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 22894.19ms. Allocated memory was 138.4MB in the beginning and 268.4MB in the end (delta: 130.0MB). Free memory was 68.6MB in the beginning and 91.0MB in the end (delta: -22.5MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. * Witness Printer took 53.42ms. Allocated memory is still 268.4MB. Free memory was 91.0MB in the beginning and 87.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #Ultimate.C_realloc_#res#1 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:23:18,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65e54748-a463-495e-b3c7-4afbb698fcb6/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free)