./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/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_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b --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 0.3.0-dev-d790fec [2024-12-06 01:01:47,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:01:47,949 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-12-06 01:01:47,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:01:47,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:01:47,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:01:47,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:01:47,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:01:47,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:01:47,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:01:47,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:01:47,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:01:47,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:01:47,975 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 01:01:47,975 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 01:01:47,975 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-06 01:01:47,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:01:47,975 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:01:47,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:01:47,976 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:01:47,976 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:01:47,976 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:01:47,976 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:01:47,976 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:01:47,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:01:47,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:01:47,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:01:47,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:01:47,977 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:01:47,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:01:47,977 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b 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 [2024-12-06 01:01:48,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:01:48,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:01:48,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:01:48,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:01:48,226 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:01:48,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2024-12-06 01:01:50,872 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/data/9238d15fe/7eeae8d7602a4b469233b2e14bcd9908/FLAG4cd98ee9b [2024-12-06 01:01:51,101 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:01:51,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2024-12-06 01:01:51,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/data/9238d15fe/7eeae8d7602a4b469233b2e14bcd9908/FLAG4cd98ee9b [2024-12-06 01:01:51,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/data/9238d15fe/7eeae8d7602a4b469233b2e14bcd9908 [2024-12-06 01:01:51,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:01:51,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:01:51,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:01:51,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:01:51,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:01:51,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e25d004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51, skipping insertion in model container [2024-12-06 01:01:51,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,160 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:01:51,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:01:51,413 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:01:51,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:01:51,468 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:01:51,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51 WrapperNode [2024-12-06 01:01:51,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:01:51,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:01:51,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:01:51,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:01:51,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,500 INFO L138 Inliner]: procedures = 117, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2024-12-06 01:01:51,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:01:51,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:01:51,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:01:51,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:01:51,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,515 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:01:51,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:01:51,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:01:51,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:01:51,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:01:51,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:01:51,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:01:51,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:01:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 01:01:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 01:01:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 01:01:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:01:51,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:01:51,646 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:01:51,647 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:01:51,769 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-12-06 01:01:51,769 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:01:51,808 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:01:51,809 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 01:01:51,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:01:51 BoogieIcfgContainer [2024-12-06 01:01:51,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:01:51,810 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:01:51,810 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:01:51,818 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:01:51,819 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:01:51" (1/1) ... [2024-12-06 01:01:51,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:01:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:51,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2024-12-06 01:01:51,879 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-12-06 01:01:51,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 01:01:51,881 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:51,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:52,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:52,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2024-12-06 01:01:52,018 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-12-06 01:01:52,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 01:01:52,019 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:52,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:52,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:52,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 25 states and 27 transitions. [2024-12-06 01:01:52,090 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2024-12-06 01:01:52,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 01:01:52,091 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:52,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:52,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:52,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:52,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2024-12-06 01:01:52,475 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2024-12-06 01:01:52,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 01:01:52,476 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:52,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:52,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:52,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2024-12-06 01:01:52,793 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2024-12-06 01:01:52,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 01:01:52,794 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:52,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:52,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:53,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2024-12-06 01:01:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-12-06 01:01:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 01:01:53,074 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:53,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:53,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 30 states and 38 transitions. [2024-12-06 01:01:53,584 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2024-12-06 01:01:53,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:01:53,584 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:53,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:53,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:53,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:53,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2024-12-06 01:01:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2024-12-06 01:01:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:01:53,783 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:53,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:53,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:54,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 37 states and 52 transitions. [2024-12-06 01:01:54,271 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2024-12-06 01:01:54,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:01:54,271 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:54,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:54,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:01:55,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:55,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 43 states and 66 transitions. [2024-12-06 01:01:55,022 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2024-12-06 01:01:55,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:01:55,023 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:55,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:55,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:56,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:56,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 46 states and 76 transitions. [2024-12-06 01:01:56,614 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2024-12-06 01:01:56,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:01:56,614 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:56,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:57,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:57,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 50 states and 87 transitions. [2024-12-06 01:01:57,384 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 87 transitions. [2024-12-06 01:01:57,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:01:57,385 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:57,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:57,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:57,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:01:58,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:58,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 57 states and 106 transitions. [2024-12-06 01:01:58,760 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 106 transitions. [2024-12-06 01:01:58,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:01:58,760 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:58,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:58,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:01:58,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:58,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 58 states and 108 transitions. [2024-12-06 01:01:58,969 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 108 transitions. [2024-12-06 01:01:58,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 01:01:58,969 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:58,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:59,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:59,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:59,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 59 states and 112 transitions. [2024-12-06 01:01:59,537 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 112 transitions. [2024-12-06 01:01:59,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 01:01:59,538 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:59,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:59,560 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 01:02:00,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:00,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 61 states and 118 transitions. [2024-12-06 01:02:00,004 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 118 transitions. [2024-12-06 01:02:00,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 01:02:00,004 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:00,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:02:00,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:00,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 62 states and 120 transitions. [2024-12-06 01:02:00,534 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 120 transitions. [2024-12-06 01:02:00,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 01:02:00,535 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:00,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:00,914 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:02:01,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:01,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 64 states and 131 transitions. [2024-12-06 01:02:01,585 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 131 transitions. [2024-12-06 01:02:01,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 01:02:01,586 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:01,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:02:02,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:02,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 67 states and 133 transitions. [2024-12-06 01:02:02,109 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 133 transitions. [2024-12-06 01:02:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 01:02:02,109 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:02,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:02,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 01:02:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 67 states and 132 transitions. [2024-12-06 01:02:02,369 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 132 transitions. [2024-12-06 01:02:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 01:02:02,369 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:02,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 01:02:02,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:02,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 69 states and 138 transitions. [2024-12-06 01:02:02,985 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 138 transitions. [2024-12-06 01:02:02,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 01:02:02,985 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:02,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:03,014 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 01:02:03,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 70 states and 139 transitions. [2024-12-06 01:02:03,223 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 139 transitions. [2024-12-06 01:02:03,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 01:02:03,223 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:03,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:03,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:02:03,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:03,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 73 states and 141 transitions. [2024-12-06 01:02:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 141 transitions. [2024-12-06 01:02:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 01:02:03,754 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:03,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:03,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:02:04,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:04,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 73 states and 140 transitions. [2024-12-06 01:02:04,100 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 140 transitions. [2024-12-06 01:02:04,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 01:02:04,101 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:04,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:04,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:04,121 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-06 01:02:04,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:04,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 75 states and 145 transitions. [2024-12-06 01:02:04,665 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 145 transitions. [2024-12-06 01:02:04,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 01:02:04,665 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:04,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:04,696 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 01:02:05,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:05,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 75 states and 144 transitions. [2024-12-06 01:02:05,220 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 144 transitions. [2024-12-06 01:02:05,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 01:02:05,220 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:05,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:02:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:02:06,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:02:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 77 states and 155 transitions. [2024-12-06 01:02:06,490 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 155 transitions. [2024-12-06 01:02:06,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 01:02:06,490 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:02:06,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:02:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:02:06,499 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:02:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:02:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:02:06,548 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:02:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:02:06,593 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations. [2024-12-06 01:02:06,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:02:06 ImpRootNode [2024-12-06 01:02:06,616 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:02:06,616 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:02:06,616 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:02:06,616 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:02:06,617 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:01:51" (3/4) ... [2024-12-06 01:02:06,617 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 01:02:06,649 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 8. [2024-12-06 01:02:06,684 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:02:06,684 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:02:06,684 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:02:06,685 INFO L158 Benchmark]: Toolchain (without parser) took 15555.31ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 116.2MB in the beginning and 264.7MB in the end (delta: -148.5MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-12-06 01:02:06,685 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:02:06,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.52ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 99.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:02:06,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.77ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 97.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:02:06,686 INFO L158 Benchmark]: Boogie Preprocessor took 20.04ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.9MB in the end (delta: 961.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:02:06,686 INFO L158 Benchmark]: RCFGBuilder took 287.28ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 80.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:02:06,687 INFO L158 Benchmark]: CodeCheck took 14806.00ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 80.8MB in the beginning and 268.4MB in the end (delta: -187.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:02:06,687 INFO L158 Benchmark]: Witness Printer took 68.42ms. Allocated memory is still 310.4MB. Free memory was 268.4MB in the beginning and 264.7MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:02:06,689 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: 14.8s, OverallIterations: 27, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2088 SdHoareTripleChecker+Valid, 10.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1675 mSDsluCounter, 293 SdHoareTripleChecker+Invalid, 9.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 1603 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7434 IncrementalHoareTripleChecker+Invalid, 9037 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1603 mSolverCounterUnsat, 153 mSDtfsCounter, 7434 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2618 GetRequests, 2320 SyntacticMatches, 38 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30763 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 787 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 22 PerfectInterpolantSequences, 59/99 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, ConComCheckerStatistics: 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}, 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}, b={-1:0}, i=1, ind=0, newsize=1, num=1] [L517] COND FALSE !(newsize < num) VAL [a={-1:0}, b={-1:0}, i=1, ind=0, newsize=1, num=1] [L523] COND TRUE b != ((void *)0) VAL [a={-1:0}, b={-1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [a={-1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [a={-1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) [L525] return 0; [L537] RET expandArray(a) [L538] free(a) VAL [i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [i=1, ind=0, newsize=1, num=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.52ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 99.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.77ms. Allocated memory is still 142.6MB. Free memory was 99.4MB in the beginning and 97.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.04ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.9MB in the end (delta: 961.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 287.28ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 80.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 14806.00ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 80.8MB in the beginning and 268.4MB in the end (delta: -187.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.42ms. Allocated memory is still 310.4MB. Free memory was 268.4MB in the beginning and 264.7MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 01:02:06,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c77e718b-bfca-4352-bc27-8d224eef5d43/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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)